Files
zstd-rs/lib/compress/zstdmt_compress.c
T
ddidderr 6b8051b98a feat(mt): move worker finish publication to Rust
Replace the C worker finish callbacks that publish errors, final block sizes,
consumed bytes, and completion signals with a Rust-owned publication path. The
nested projection keeps the job counters and pthread operations private to C,
while Rust preserves the error/success ordering and size_t wrapping behavior.
The consumed-size assertion remains a C validation callback at the original
point before publication.

Test Plan:
- git diff --cached --check
- capped cargo check --tests
- capped cargo clippy --tests -- -A clippy::manual-bits -D warnings
- capped make -j1
- capped make -j1 -C tests test
- standalone hybrid cargo test remains unavailable because its link lacks the
  pre-existing ZSTD_rust_dctx_trace_view, ZSTD_rust_dctx_view, and
  ZSTD_rust_block_context_init symbols
2026-07-21 22:27:57 +02:00

3736 lines
146 KiB
C

/*
* Copyright (c) Meta Platforms, Inc. and affiliates.
* All rights reserved.
*
* This source code is licensed under both the BSD-style license (found in the
* LICENSE file in the root directory of this source tree) and the GPLv2 (found
* in the COPYING file in the root directory of this source tree).
* You may select, at your option, one of the above-listed licenses.
*/
/* ====== Compiler specifics ====== */
#if defined(_MSC_VER)
# pragma warning(disable : 4204) /* disable: C4204: non-constant aggregate initializer */
#endif
/* ====== Dependencies ====== */
#include "../common/allocations.h" /* ZSTD_customMalloc, ZSTD_customCalloc, ZSTD_customFree */
#include "../common/zstd_deps.h" /* ZSTD_memmove, ZSTD_memset, INT_MAX, UINT_MAX */
#include "../common/mem.h" /* MEM_STATIC */
#include "../common/pool.h" /* threadpool */
#include "../common/threading.h" /* mutex */
#include "zstd_compress_internal.h" /* MIN, ERROR, ZSTD_*, ZSTD_highbit32 */
#include "zstd_ldm.h"
#include "zstdmt_compress.h"
/* The Rust MT parameter-update policy receives only this scalar snapshot.
* Keep the private ZSTDMT_CCtx and ZSTD_CCtx_params layouts in this
* translation unit. */
typedef struct {
int compressionLevel;
int cctxSrcSizeHint;
U64 srcSizeHint;
size_t dictSize;
int mode;
int enableLdm;
U32 ldmDefaultWindowLog;
ZSTD_compressionParameters overrides;
int useRowMatchFinder;
U32 exclusionMask;
U32 savedWindowLog;
} ZSTDMT_RustCParamsUpdateProjection;
typedef char ZSTDMT_rust_cparams_update_projection_layout[
(offsetof(ZSTDMT_RustCParamsUpdateProjection, compressionLevel) == 0
&& offsetof(ZSTDMT_RustCParamsUpdateProjection, cctxSrcSizeHint)
== sizeof(int)
&& offsetof(ZSTDMT_RustCParamsUpdateProjection, srcSizeHint)
== 2 * sizeof(int)
&& offsetof(ZSTDMT_RustCParamsUpdateProjection, dictSize) == 16
&& offsetof(ZSTDMT_RustCParamsUpdateProjection, mode)
== (sizeof(void*) == 8 ? 24 : 20)
&& offsetof(ZSTDMT_RustCParamsUpdateProjection, enableLdm)
== (sizeof(void*) == 8 ? 28 : 24)
&& offsetof(ZSTDMT_RustCParamsUpdateProjection, ldmDefaultWindowLog)
== (sizeof(void*) == 8 ? 32 : 28)
&& offsetof(ZSTDMT_RustCParamsUpdateProjection, overrides)
== (sizeof(void*) == 8 ? 36 : 32)
&& offsetof(ZSTDMT_RustCParamsUpdateProjection, useRowMatchFinder)
== (sizeof(void*) == 8 ? 64 : 60)
&& offsetof(ZSTDMT_RustCParamsUpdateProjection, exclusionMask)
== (sizeof(void*) == 8 ? 68 : 64)
&& offsetof(ZSTDMT_RustCParamsUpdateProjection, savedWindowLog)
== (sizeof(void*) == 8 ? 72 : 68)
&& sizeof(ZSTDMT_RustCParamsUpdateProjection)
== (sizeof(void*) == 8 ? 80 : 72))
? 1 : -1];
typedef struct {
int compressionLevel;
ZSTD_compressionParameters cParams;
} ZSTDMT_RustCParamsUpdateResult;
typedef char ZSTDMT_rust_cparams_update_result_layout[
(offsetof(ZSTDMT_RustCParamsUpdateResult, compressionLevel) == 0
&& offsetof(ZSTDMT_RustCParamsUpdateResult, cParams) == sizeof(int)
&& sizeof(ZSTDMT_RustCParamsUpdateResult)
== sizeof(int) + sizeof(ZSTD_compressionParameters))
? 1 : -1];
ZSTDMT_RustCParamsUpdateResult ZSTDMT_rust_updateCParamsWhileCompressing(
ZSTDMT_RustCParamsUpdateProjection projection);
/* Defined in zstd_compress.c so all C translation units use the same
* preprocessor-derived block-compressor exclusion mask. */
U32 ZSTD_getCParamsExclusionMask(void);
/* Guards code to support resizing the SeqPool.
* We will want to resize the SeqPool to save memory in the future.
* Until then, comment the code out since it is unused.
*/
#define ZSTD_RESIZE_SEQPOOL 0
/* ====== Debug ====== */
#if defined(DEBUGLEVEL) && (DEBUGLEVEL>=2) \
&& !defined(_MSC_VER) \
&& !defined(__MINGW32__)
# include <stdio.h>
# include <unistd.h>
# include <sys/times.h>
# define DEBUG_PRINTHEX(l,p,n) \
do { \
unsigned debug_u; \
for (debug_u=0; debug_u<(n); debug_u++) \
RAWLOG(l, "%02X ", ((const unsigned char*)(p))[debug_u]); \
RAWLOG(l, " \n"); \
} while (0)
static unsigned long long GetCurrentClockTimeMicroseconds(void)
{
static clock_t _ticksPerSecond = 0;
if (_ticksPerSecond <= 0) _ticksPerSecond = sysconf(_SC_CLK_TCK);
{ struct tms junk; clock_t newTicks = (clock_t) times(&junk);
return ((((unsigned long long)newTicks)*(1000000))/_ticksPerSecond);
} }
#define MUTEX_WAIT_TIME_DLEVEL 6
#define ZSTD_PTHREAD_MUTEX_LOCK(mutex) \
do { \
if (DEBUGLEVEL >= MUTEX_WAIT_TIME_DLEVEL) { \
unsigned long long const beforeTime = GetCurrentClockTimeMicroseconds(); \
ZSTD_pthread_mutex_lock(mutex); \
{ unsigned long long const afterTime = GetCurrentClockTimeMicroseconds(); \
unsigned long long const elapsedTime = (afterTime-beforeTime); \
if (elapsedTime > 1000) { \
/* or whatever threshold you like; I'm using 1 millisecond here */ \
DEBUGLOG(MUTEX_WAIT_TIME_DLEVEL, \
"Thread took %llu microseconds to acquire mutex %s \n", \
elapsedTime, #mutex); \
} } \
} else { \
ZSTD_pthread_mutex_lock(mutex); \
} \
} while (0)
#else
# define ZSTD_PTHREAD_MUTEX_LOCK(m) ZSTD_pthread_mutex_lock(m)
# define DEBUG_PRINTHEX(l,p,n) do { } while (0)
#endif
/* ===== Buffer Pool ===== */
/* a single Buffer Pool can be invoked from multiple threads in parallel */
typedef struct buffer_s {
void* start;
size_t capacity;
} Buffer;
static const Buffer g_nullBuffer = { NULL, 0 };
/* The Rust module owns the synchronized pool state. Keep a C wrapper so
* custom allocation of the containing ZSTDMT context remains unchanged. */
typedef struct ZSTDMT_RustBufferPool_s ZSTDMT_RustBufferPool;
typedef struct {
void* start;
size_t capacity;
} ZSTDMT_RustBuffer;
ZSTDMT_RustBufferPool* ZSTDMT_rust_buffer_pool_create(unsigned maxNbBuffers,
ZSTD_customMem cMem);
void ZSTDMT_rust_buffer_pool_free(ZSTDMT_RustBufferPool* pool);
size_t ZSTDMT_rust_buffer_pool_sizeof(const ZSTDMT_RustBufferPool* pool);
size_t ZSTDMT_rust_sizeofBufferPool(size_t wrapperSize, size_t rustPoolSize);
void ZSTDMT_rust_buffer_pool_set_size(ZSTDMT_RustBufferPool* pool, size_t bSize);
ZSTDMT_RustBufferPool* ZSTDMT_rust_buffer_pool_expand(ZSTDMT_RustBufferPool* pool,
unsigned maxNbBuffers);
ZSTDMT_RustBuffer ZSTDMT_rust_buffer_pool_get(ZSTDMT_RustBufferPool* pool);
void ZSTDMT_rust_buffer_pool_release(ZSTDMT_RustBufferPool* pool,
ZSTDMT_RustBuffer buffer);
ZSTDMT_RustBuffer ZSTDMT_rust_buffer_pool_resize(ZSTDMT_RustBufferPool* pool,
ZSTDMT_RustBuffer buffer);
typedef struct {
size_t error;
size_t lastBlockSize;
} ZSTDMT_chunkProcessResult;
typedef struct {
void* dst;
size_t dstCapacity;
int* stage;
int noDictIDFlag;
int checksumFlag;
int contentSizeFlag;
int format;
U32 windowLog;
U64 pledgedSrcSizePlusOne;
U32 dictID;
U32* repCodes;
} ZSTDMT_RustCompressionJobFrameHeaderState;
typedef char ZSTDMT_compression_job_frame_header_state_layout[
(offsetof(ZSTDMT_RustCompressionJobFrameHeaderState, dst) == 0
&& offsetof(ZSTDMT_RustCompressionJobFrameHeaderState, dstCapacity)
== sizeof(void*)
&& offsetof(ZSTDMT_RustCompressionJobFrameHeaderState, stage)
== 2 * sizeof(void*)
&& offsetof(ZSTDMT_RustCompressionJobFrameHeaderState, noDictIDFlag)
== 3 * sizeof(void*)
&& offsetof(ZSTDMT_RustCompressionJobFrameHeaderState, checksumFlag)
== 3 * sizeof(void*) + sizeof(int)
&& offsetof(ZSTDMT_RustCompressionJobFrameHeaderState, contentSizeFlag)
== 3 * sizeof(void*) + 2 * sizeof(int)
&& offsetof(ZSTDMT_RustCompressionJobFrameHeaderState, format)
== 3 * sizeof(void*) + 3 * sizeof(int)
&& offsetof(ZSTDMT_RustCompressionJobFrameHeaderState, windowLog)
== 3 * sizeof(void*) + 4 * sizeof(int)
&& offsetof(ZSTDMT_RustCompressionJobFrameHeaderState, pledgedSrcSizePlusOne)
== (sizeof(void*) == 8 ? 6 * sizeof(void*) : 8 * sizeof(void*))
&& offsetof(ZSTDMT_RustCompressionJobFrameHeaderState, dictID)
== (sizeof(void*) == 8 ? 6 * sizeof(void*) : 8 * sizeof(void*))
+ sizeof(U64)
&& offsetof(ZSTDMT_RustCompressionJobFrameHeaderState, repCodes)
== (sizeof(void*) == 8 ? 8 * sizeof(void*) : 11 * sizeof(void*))
&& sizeof(ZSTDMT_RustCompressionJobFrameHeaderState)
== (sizeof(void*) == 8 ? 72 : 48))
? 1 : -1];
typedef struct ZSTDMT_RustCompressionJobSequenceState_s
ZSTDMT_RustCompressionJobSequenceState;
typedef struct {
unsigned firstJob;
unsigned lastJob;
const ZSTDMT_RustCompressionJobFrameHeaderState* frameHeaderState;
const ZSTDMT_RustCompressionJobSequenceState* sequenceState;
} ZSTDMT_RustCompressionJobProjection;
typedef char ZSTDMT_compression_job_projection_layout[
(offsetof(ZSTDMT_RustCompressionJobProjection, firstJob) == 0
&& offsetof(ZSTDMT_RustCompressionJobProjection, lastJob) == sizeof(unsigned)
&& offsetof(ZSTDMT_RustCompressionJobProjection, frameHeaderState)
== 2 * sizeof(unsigned)
&& offsetof(ZSTDMT_RustCompressionJobProjection, sequenceState)
== 2 * sizeof(unsigned) + sizeof(void*)
&& sizeof(ZSTDMT_RustCompressionJobProjection)
== 2 * sizeof(unsigned) + 2 * sizeof(void*))
? 1 : -1];
typedef struct {
unsigned firstJob;
unsigned hasCDict;
} ZSTDMT_RustCompressionJobBeginProjection;
typedef char ZSTDMT_compression_job_begin_projection_layout[
(offsetof(ZSTDMT_RustCompressionJobBeginProjection, firstJob) == 0
&& offsetof(ZSTDMT_RustCompressionJobBeginProjection, hasCDict)
== sizeof(unsigned)
&& sizeof(ZSTDMT_RustCompressionJobBeginProjection)
== 2 * sizeof(unsigned))
? 1 : -1];
typedef struct {
int status;
size_t toFlush;
size_t outputPos;
size_t dstFlushed;
} ZSTDMT_flushPublicationResult;
typedef void (*ZSTDMT_chunkProgressFn)(void* opaque, size_t cSize, size_t consumed);
typedef size_t (*ZSTDMT_compressionJobStepFn)(void* opaque);
typedef void (*ZSTDMT_compressionJobVoidFn)(void* opaque);
typedef ZSTDMT_chunkProcessResult (*ZSTDMT_compressionJobCompressFn)(
void* opaque, unsigned lastJob);
typedef void (*ZSTDMT_compressionJobSizeFn)(void* opaque, size_t size);
typedef size_t (*ZSTDMT_compressionJobSetParameterFn)(void* opaque, int value);
typedef void (*ZSTDMT_compressionJobApplySequencesFn)(
void* opaque, void* cctx, void* sequences, size_t nbSequences);
typedef struct {
void* callbackContext;
size_t* cSize;
size_t* consumed;
ZSTDMT_compressionJobVoidFn lock;
ZSTDMT_compressionJobVoidFn signal;
ZSTDMT_compressionJobVoidFn unlock;
ZSTDMT_chunkProgressFn debug;
} ZSTDMT_RustCompressionJobProgressProjection;
typedef char ZSTDMT_compression_job_progress_projection_layout[
(offsetof(ZSTDMT_RustCompressionJobProgressProjection, callbackContext)
== 0
&& offsetof(ZSTDMT_RustCompressionJobProgressProjection, cSize)
== sizeof(void*)
&& offsetof(ZSTDMT_RustCompressionJobProgressProjection, consumed)
== sizeof(void*) + sizeof(size_t)
&& offsetof(ZSTDMT_RustCompressionJobProgressProjection, lock)
== sizeof(void*) + 2 * sizeof(size_t)
&& offsetof(ZSTDMT_RustCompressionJobProgressProjection, signal)
== sizeof(void*) + 2 * sizeof(size_t) + sizeof(void*)
&& offsetof(ZSTDMT_RustCompressionJobProgressProjection, unlock)
== sizeof(void*) + 2 * sizeof(size_t) + 2 * sizeof(void*)
&& offsetof(ZSTDMT_RustCompressionJobProgressProjection, debug)
== sizeof(void*) + 2 * sizeof(size_t) + 3 * sizeof(void*)
&& sizeof(ZSTDMT_RustCompressionJobProgressProjection)
== sizeof(void*) + 2 * sizeof(size_t) + 4 * sizeof(void*))
? 1 : -1];
void ZSTDMT_rust_compressionJobProgress(
void* opaque, size_t cSize, size_t consumed);
typedef struct {
void* callbackContext;
size_t* cSize;
size_t* consumed;
size_t srcSize;
ZSTDMT_compressionJobVoidFn lock;
ZSTDMT_compressionJobVoidFn signal;
ZSTDMT_compressionJobVoidFn unlock;
ZSTDMT_compressionJobSizeFn validateConsumed;
} ZSTDMT_RustCompressionJobFinishPublicationProjection;
typedef char ZSTDMT_compression_job_finish_publication_projection_layout[
(offsetof(ZSTDMT_RustCompressionJobFinishPublicationProjection,
callbackContext) == 0
&& offsetof(ZSTDMT_RustCompressionJobFinishPublicationProjection, cSize)
== sizeof(void*)
&& offsetof(ZSTDMT_RustCompressionJobFinishPublicationProjection,
consumed)
== sizeof(void*) + sizeof(size_t)
&& offsetof(ZSTDMT_RustCompressionJobFinishPublicationProjection,
srcSize)
== sizeof(void*) + 2 * sizeof(size_t)
&& offsetof(ZSTDMT_RustCompressionJobFinishPublicationProjection, lock)
== sizeof(void*) + 3 * sizeof(size_t)
&& offsetof(ZSTDMT_RustCompressionJobFinishPublicationProjection, signal)
== sizeof(void*) + 3 * sizeof(size_t) + sizeof(void*)
&& offsetof(ZSTDMT_RustCompressionJobFinishPublicationProjection,
unlock)
== sizeof(void*) + 3 * sizeof(size_t) + 2 * sizeof(void*)
&& offsetof(ZSTDMT_RustCompressionJobFinishPublicationProjection,
validateConsumed)
== sizeof(void*) + 3 * sizeof(size_t) + 3 * sizeof(void*)
&& sizeof(ZSTDMT_RustCompressionJobFinishPublicationProjection)
== sizeof(void*) + 3 * sizeof(size_t) + 4 * sizeof(void*))
? 1 : -1];
typedef struct {
void* callbackContext;
size_t srcSize;
ZSTDMT_compressionJobVoidFn ensureFinished;
ZSTDMT_RustCompressionJobFinishPublicationProjection publication;
ZSTDMT_compressionJobVoidFn releaseSeq;
ZSTDMT_compressionJobVoidFn releaseCCtx;
} ZSTDMT_RustCompressionJobFinishProjection;
typedef char ZSTDMT_compression_job_finish_projection_layout[
(offsetof(ZSTDMT_RustCompressionJobFinishProjection, callbackContext) == 0
&& offsetof(ZSTDMT_RustCompressionJobFinishProjection, srcSize)
== sizeof(void*)
&& offsetof(ZSTDMT_RustCompressionJobFinishProjection, ensureFinished)
== 2 * sizeof(void*)
&& offsetof(ZSTDMT_RustCompressionJobFinishProjection, publication)
== 3 * sizeof(void*)
&& offsetof(ZSTDMT_RustCompressionJobFinishProjection, releaseSeq)
== 3 * sizeof(void*)
+ sizeof(ZSTDMT_RustCompressionJobFinishPublicationProjection)
&& offsetof(ZSTDMT_RustCompressionJobFinishProjection, releaseCCtx)
== 4 * sizeof(void*)
+ sizeof(ZSTDMT_RustCompressionJobFinishPublicationProjection)
&& sizeof(ZSTDMT_RustCompressionJobFinishProjection)
== 5 * sizeof(void*)
+ sizeof(ZSTDMT_RustCompressionJobFinishPublicationProjection))
? 1 : -1];
typedef struct {
int checksumFlag;
int ldmEnable;
unsigned nbWorkers;
} ZSTDMT_RustCompressionJobParameters;
typedef char ZSTDMT_compression_job_parameters_layout[
(offsetof(ZSTDMT_RustCompressionJobParameters, checksumFlag) == 0
&& offsetof(ZSTDMT_RustCompressionJobParameters, ldmEnable) == sizeof(int)
&& offsetof(ZSTDMT_RustCompressionJobParameters, nbWorkers) == 2 * sizeof(int)
&& sizeof(ZSTDMT_RustCompressionJobParameters)
== 2 * sizeof(int) + sizeof(unsigned))
? 1 : -1];
typedef struct {
int ldmEnabled;
int hasDestination;
} ZSTDMT_RustCompressionJobResourceProjection;
typedef char ZSTDMT_compression_job_resource_projection_layout[
(offsetof(ZSTDMT_RustCompressionJobResourceProjection, ldmEnabled) == 0
&& offsetof(ZSTDMT_RustCompressionJobResourceProjection, hasDestination)
== sizeof(int)
&& sizeof(ZSTDMT_RustCompressionJobResourceProjection)
== 2 * sizeof(int))
? 1 : -1];
typedef int (*ZSTDMT_compressionJobResourceReadyFn)(void* opaque);
ZSTDMT_RustCompressionJobParameters ZSTDMT_rust_prepareCompressionJobParameters(
unsigned jobID, int checksumFlag, int ldmEnable, unsigned nbWorkers);
size_t ZSTDMT_rust_compressionJobAcquireResources(
const ZSTDMT_RustCompressionJobResourceProjection* projection,
void* opaque,
ZSTDMT_compressionJobVoidFn acquireCCtx,
ZSTDMT_compressionJobVoidFn acquireRawSeqStore,
ZSTDMT_compressionJobResourceReadyFn hasCCtx,
ZSTDMT_compressionJobStepFn acquireDestinationBuffer,
ZSTDMT_compressionJobResourceReadyFn hasRawSeqStore,
ZSTDMT_compressionJobVoidFn publishDestination);
size_t ZSTDMT_rust_compressionJobBegin(
const ZSTDMT_RustCompressionJobBeginProjection* projection,
void* opaque,
ZSTDMT_compressionJobStepFn beginWithCDict,
ZSTDMT_compressionJobSetParameterFn setForceMaxWindow,
ZSTDMT_compressionJobStepFn setDeterministicRefPrefix,
ZSTDMT_compressionJobStepFn beginWithPrefix,
ZSTDMT_compressionJobVoidFn publishFrameHeader);
void ZSTDMT_rust_compressionJob(
const ZSTDMT_RustCompressionJobProjection* projection,
const ZSTDMT_RustCompressionJobFinishProjection* finishProjection,
void* opaque,
ZSTDMT_compressionJobStepFn acquireResources,
ZSTDMT_compressionJobVoidFn prepareParameters,
ZSTDMT_compressionJobVoidFn generateSequences,
ZSTDMT_compressionJobStepFn beginJob,
ZSTDMT_compressionJobApplySequencesFn applySequences,
ZSTDMT_compressionJobCompressFn compressJob,
ZSTDMT_compressionJobVoidFn traceJob);
ZSTDMT_chunkProcessResult ZSTDMT_rust_compressJobChunks(
ZSTD_CCtx* cctx, const void* src, size_t srcSize,
void* dst, size_t dstCapacity, size_t chunkSize, unsigned lastJob,
void* progressContext, ZSTDMT_chunkProgressFn progressCallback);
ZSTDMT_flushPublicationResult ZSTDMT_rust_publishJobOutput(
void* outputDst, size_t outputSize, size_t outputPos,
const void* jobDst, size_t jobCapacity,
size_t cSize, size_t dstFlushed);
typedef struct {
size_t consumed;
size_t cSize;
size_t srcSize;
const void* dstStart;
size_t dstCapacity;
size_t dstFlushed;
unsigned frameChecksumNeeded;
} ZSTDMT_RustFlushJobProjection;
typedef struct {
void* dst;
size_t dstCapacity;
size_t cSize;
U32 checksum;
} ZSTDMT_RustFrameChecksumProjection;
typedef char ZSTDMT_frame_checksum_projection_layout[
(offsetof(ZSTDMT_RustFrameChecksumProjection, dst) == 0
&& offsetof(ZSTDMT_RustFrameChecksumProjection, dstCapacity)
== sizeof(void*)
&& offsetof(ZSTDMT_RustFrameChecksumProjection, cSize)
== 2 * sizeof(void*)
&& offsetof(ZSTDMT_RustFrameChecksumProjection, checksum)
== 3 * sizeof(void*)
&& sizeof(U32) == 4
&& sizeof(ZSTDMT_RustFrameChecksumProjection)
== 4 * sizeof(void*))
? 1 : -1];
typedef struct {
unsigned doneJobID;
unsigned nextJobID;
unsigned jobIDMask;
unsigned jobReady;
unsigned frameEnded;
size_t inBuffFilled;
} ZSTDMT_RustFlushContextProjection;
typedef struct {
size_t result;
size_t outputPos;
unsigned updateAllJobsCompleted;
unsigned allJobsCompleted;
} ZSTDMT_RustFlushProducedResult;
typedef void (*ZSTDMT_flushProjectJobFn)(
void* opaque, unsigned jobID, unsigned blockToFlush,
ZSTDMT_RustFlushJobProjection* projection);
typedef void (*ZSTDMT_flushChecksumFn)(
void* opaque, unsigned jobID,
ZSTDMT_RustFlushJobProjection* projection);
typedef void (*ZSTDMT_flushUpdateJobFn)(
void* opaque, unsigned jobID, size_t dstFlushed);
typedef void (*ZSTDMT_flushCompleteJobFn)(
void* opaque, unsigned jobID, size_t srcSize, size_t cSize);
typedef void (*ZSTDMT_flushWaitForAllJobsFn)(void* opaque);
typedef void (*ZSTDMT_flushReleaseAllJobResourcesFn)(void* opaque);
ZSTDMT_RustFlushProducedResult ZSTDMT_rust_flushProduced(
const ZSTDMT_RustFlushContextProjection* context,
void* outputDst, size_t outputSize, size_t outputPos,
unsigned blockToFlush, unsigned end, void* opaque,
ZSTDMT_flushProjectJobFn projectJob,
ZSTDMT_flushChecksumFn addFrameChecksum,
ZSTDMT_flushUpdateJobFn updateJob,
ZSTDMT_flushCompleteJobFn completeJob,
ZSTDMT_flushWaitForAllJobsFn waitForAllJobs,
ZSTDMT_flushReleaseAllJobResourcesFn releaseAllJobResources);
size_t ZSTDMT_rust_writeFrameChecksum(
const ZSTDMT_RustFrameChecksumProjection* projection);
/* The Rust outer scheduler sees only this scalar snapshot. The MT context,
* reusable input buffer, worker pool, and all synchronization remain private
* to this translation unit. */
typedef struct {
unsigned frameEnded;
unsigned jobReady;
void* inBuffStart;
size_t inBuffCapacity;
size_t inBuffFilled;
size_t targetSectionSize;
int rsyncable;
U64 rsyncPrimePower;
U64 rsyncHitMask;
} ZSTDMT_RustCompressStreamContextProjection;
typedef struct {
void* bufferStart;
size_t bufferCapacity;
size_t bufferFilled;
} ZSTDMT_RustStreamInputRangeProjection;
typedef struct {
const void* src;
size_t size;
size_t pos;
} ZSTDMT_RustStreamInputProjection;
typedef struct {
void* dst;
size_t size;
size_t pos;
} ZSTDMT_RustStreamOutputProjection;
typedef struct {
size_t toLoad;
int flush;
} ZSTDMT_RustSyncPointProjection;
typedef struct {
size_t result;
size_t outputPos;
} ZSTDMT_RustStreamFlushResult;
typedef struct {
size_t result;
unsigned inBuffActive;
} ZSTDMT_RustStreamCreateJobResult;
typedef char ZSTDMT_stream_create_job_result_layout[
(offsetof(ZSTDMT_RustStreamCreateJobResult, result) == 0
&& offsetof(ZSTDMT_RustStreamCreateJobResult, inBuffActive)
== sizeof(size_t)
&& sizeof(ZSTDMT_RustStreamCreateJobResult) == 2 * sizeof(size_t))
? 1 : -1];
typedef struct {
size_t result;
size_t inputPos;
size_t outputPos;
size_t inBuffFilled;
} ZSTDMT_RustCompressStreamResult;
typedef char ZSTDMT_compress_stream_result_layout[
(offsetof(ZSTDMT_RustCompressStreamResult, result) == 0
&& offsetof(ZSTDMT_RustCompressStreamResult, inputPos) == sizeof(size_t)
&& offsetof(ZSTDMT_RustCompressStreamResult, outputPos) == 2 * sizeof(size_t)
&& offsetof(ZSTDMT_RustCompressStreamResult, inBuffFilled)
== 3 * sizeof(size_t)
&& sizeof(ZSTDMT_RustCompressStreamResult) == 4 * sizeof(size_t))
? 1 : -1];
typedef int (*ZSTDMT_streamTryGetInputRangeFn)(
void* opaque, ZSTDMT_RustStreamInputRangeProjection* projection);
typedef ZSTDMT_RustStreamCreateJobResult (*ZSTDMT_streamCreateJobFn)(
void* opaque, size_t srcSize, unsigned end);
typedef ZSTDMT_RustStreamFlushResult (*ZSTDMT_streamFlushProducedFn)(
void* opaque, void* outputDst, size_t outputSize, size_t outputPos,
unsigned blockToFlush, unsigned end);
ZSTDMT_RustCompressStreamResult ZSTDMT_rust_compressStreamGeneric(
const ZSTDMT_RustCompressStreamContextProjection* context,
const ZSTDMT_RustStreamInputProjection* input,
const ZSTDMT_RustStreamOutputProjection* output,
unsigned end, void* opaque,
ZSTDMT_streamTryGetInputRangeFn tryGetInputRange,
ZSTDMT_streamCreateJobFn createJob,
ZSTDMT_streamFlushProducedFn flushProduced);
typedef struct {
unsigned lastJob;
size_t srcSize;
unsigned firstJob;
void* dstStart;
size_t dstCapacity;
size_t consumed;
} ZSTDMT_RustEmptyBlockJobProjection;
typedef struct {
ZSTDMT_RustBuffer buffer;
size_t cSize;
unsigned clearSource;
} ZSTDMT_RustEmptyBlockResult;
typedef ZSTDMT_RustBuffer (*ZSTDMT_bufferGetFn)(void* opaque);
ZSTDMT_RustEmptyBlockResult ZSTDMT_rust_writeLastEmptyBlock(
const ZSTDMT_RustEmptyBlockJobProjection* projection,
void* opaque, ZSTDMT_bufferGetFn getBuffer);
typedef struct {
unsigned doneJobID;
unsigned nextJobID;
unsigned jobIDMask;
unsigned jobReady;
const void* srcStart;
size_t srcSize;
size_t inBuffFilled;
const void* prefixStart;
size_t prefixSize;
size_t targetPrefixSize;
unsigned endFrame;
unsigned checksumFlag;
} ZSTDMT_RustCreateJobProjection;
typedef struct {
const void* srcStart;
size_t srcSize;
const void* prefixStart;
size_t prefixSize;
const void* nextPrefixStart;
size_t nextPrefixSize;
size_t roundBuffPosDelta;
unsigned jobNumber;
unsigned firstJob;
unsigned lastJob;
unsigned frameChecksumNeeded;
unsigned clearChecksumFlag;
} ZSTDMT_RustJobInitialization;
typedef struct {
size_t returnCode;
unsigned action;
unsigned jobID;
unsigned jobNumber;
unsigned nextJobID;
unsigned jobReady;
} ZSTDMT_RustCreateJobResult;
enum {
ZSTDMT_CREATE_JOB_TABLE_FULL = 0,
ZSTDMT_CREATE_JOB_POST = 1,
ZSTDMT_CREATE_JOB_EMPTY = 2
};
typedef void (*ZSTDMT_prepareJobFn)(void* opaque, unsigned jobID,
const ZSTDMT_RustJobInitialization* init);
typedef void (*ZSTDMT_prepareFrameStateFn)(void* opaque);
typedef void (*ZSTDMT_writeEmptyJobFn)(void* opaque, unsigned jobID);
typedef int (*ZSTDMT_tryAddJobFn)(void* opaque, unsigned jobID);
void ZSTDMT_rust_prepareCompressionJob(
void* opaque, unsigned jobID,
const ZSTDMT_RustJobInitialization* initialization,
ZSTDMT_prepareJobFn initializeJob,
ZSTDMT_prepareJobFn resetInputState,
ZSTDMT_prepareFrameStateFn setFrameEnded,
ZSTDMT_prepareFrameStateFn clearChecksumFlag);
ZSTDMT_RustCreateJobResult ZSTDMT_rust_createCompressionJob(
const ZSTDMT_RustCreateJobProjection* projection,
void* opaque, ZSTDMT_prepareJobFn prepareJob,
ZSTDMT_writeEmptyJobFn writeEmptyJob, ZSTDMT_tryAddJobFn tryAddJob);
typedef struct {
rawSeq* seq;
size_t pos;
size_t posInSequence;
size_t size;
size_t capacity;
} ZSTDMT_RustRawSeqStore;
typedef char ZSTDMT_rust_raw_seq_layout[
(sizeof(rawSeq) == 3 * sizeof(U32)) ? 1 : -1];
typedef char ZSTDMT_rust_raw_seq_store_layout[
(sizeof(ZSTDMT_RustRawSeqStore) == sizeof(RawSeqStore_t)
&& offsetof(ZSTDMT_RustRawSeqStore, pos) == offsetof(RawSeqStore_t, pos)
&& offsetof(ZSTDMT_RustRawSeqStore, capacity) == offsetof(RawSeqStore_t, capacity))
? 1 : -1];
struct ZSTDMT_RustCompressionJobSequenceState_s {
ZSTD_CCtx** cctx;
ZSTDMT_RustRawSeqStore* rawSeqStore;
int ldmEnabled;
};
typedef char ZSTDMT_compression_job_sequence_state_layout[
(offsetof(ZSTDMT_RustCompressionJobSequenceState, cctx) == 0
&& offsetof(ZSTDMT_RustCompressionJobSequenceState, rawSeqStore)
== sizeof(void*)
&& offsetof(ZSTDMT_RustCompressionJobSequenceState, ldmEnabled)
== 2 * sizeof(void*)
&& sizeof(ZSTDMT_RustCompressionJobSequenceState)
== (sizeof(void*) == 8 ? 24 : 12))
? 1 : -1];
ZSTDMT_RustRawSeqStore ZSTDMT_rust_bufferToSeq(ZSTDMT_RustBuffer buffer);
ZSTDMT_RustBuffer ZSTDMT_rust_seqToBuffer(ZSTDMT_RustRawSeqStore seq);
typedef int (*ZSTDMT_serialWaitForTurnFn)(void* opaque, unsigned jobID);
typedef void (*ZSTDMT_serialLdmWindowUpdateFn)(
void* opaque, ZSTDMT_RustRawSeqStore* seqStore,
const void* src, size_t srcSize);
typedef void (*ZSTDMT_serialLdmGenerateSequencesFn)(
void* opaque, ZSTDMT_RustRawSeqStore* seqStore,
const void* src, size_t srcSize);
typedef void (*ZSTDMT_serialLdmPublishWindowFn)(void* opaque);
typedef void (*ZSTDMT_serialUpdateChecksumFn)(
void* opaque, const void* src, size_t srcSize);
typedef void (*ZSTDMT_serialAdvanceFn)(void* opaque);
typedef void (*ZSTDMT_serialStateLockFn)(void* opaque);
typedef void (*ZSTDMT_serialStateWaitFn)(void* opaque);
typedef struct {
void* callbackContext;
unsigned* nextJobID;
ZSTDMT_serialStateLockFn lock;
ZSTDMT_serialStateWaitFn wait;
unsigned jobID;
} ZSTDMT_RustSerialWaitForTurnState;
typedef char ZSTDMT_rust_serial_wait_for_turn_state_layout[
(offsetof(ZSTDMT_RustSerialWaitForTurnState, callbackContext) == 0
&& offsetof(ZSTDMT_RustSerialWaitForTurnState, nextJobID) == sizeof(void*)
&& offsetof(ZSTDMT_RustSerialWaitForTurnState, lock) == 2 * sizeof(void*)
&& offsetof(ZSTDMT_RustSerialWaitForTurnState, wait) == 3 * sizeof(void*)
&& offsetof(ZSTDMT_RustSerialWaitForTurnState, jobID) == 4 * sizeof(void*)
&& sizeof(ZSTDMT_RustSerialWaitForTurnState) == 5 * sizeof(void*)) ? 1 : -1];
int ZSTDMT_rust_serialStateWaitForTurn(
const ZSTDMT_RustSerialWaitForTurnState* state);
typedef void (*ZSTDMT_serialStateBroadcastFn)(void* opaque);
typedef void (*ZSTDMT_serialStateUnlockFn)(void* opaque);
typedef struct {
void* callbackContext;
unsigned* nextJobID;
ZSTDMT_serialStateBroadcastFn broadcast;
ZSTDMT_serialStateUnlockFn unlock;
} ZSTDMT_RustSerialAdvanceState;
typedef char ZSTDMT_rust_serial_advance_state_layout[
(offsetof(ZSTDMT_RustSerialAdvanceState, callbackContext) == 0
&& offsetof(ZSTDMT_RustSerialAdvanceState, nextJobID) == sizeof(void*)
&& offsetof(ZSTDMT_RustSerialAdvanceState, broadcast) == 2 * sizeof(void*)
&& offsetof(ZSTDMT_RustSerialAdvanceState, unlock) == 3 * sizeof(void*)
&& sizeof(ZSTDMT_RustSerialAdvanceState) == 4 * sizeof(void*)) ? 1 : -1];
void ZSTDMT_rust_serialStateAdvance(const ZSTDMT_RustSerialAdvanceState* state);
void ZSTDMT_rust_serialStateGenSequences(
ZSTDMT_RustRawSeqStore* seqStore, const void* src, size_t srcSize,
unsigned jobID, int ldmEnabled, int checksumEnabled, void* opaque,
ZSTDMT_serialWaitForTurnFn waitForTurn,
ZSTDMT_serialLdmWindowUpdateFn updateLdmWindow,
ZSTDMT_serialLdmGenerateSequencesFn generateLdmSequences,
ZSTDMT_serialLdmPublishWindowFn publishLdmWindow,
ZSTDMT_serialUpdateChecksumFn updateChecksum,
ZSTDMT_serialAdvanceFn advance);
typedef struct {
unsigned skip;
unsigned nextJobID;
} ZSTDMT_RustSerialEnsureFinishedResult;
ZSTDMT_RustSerialEnsureFinishedResult ZSTDMT_rust_serialStateEnsureFinished(
unsigned nextJobID, unsigned jobID);
typedef void (*ZSTDMT_serialStateCallbackFn)(void* opaque);
typedef void (*ZSTDMT_serialStateSkipFn)(
void* opaque, unsigned jobID, size_t cSize);
typedef struct {
void* callbackContext;
unsigned* nextJobID;
ZSTDMT_serialStateCallbackFn lock;
ZSTDMT_serialStateCallbackFn broadcast;
ZSTDMT_serialStateCallbackFn ldmLock;
ZSTDMT_serialStateCallbackFn clearLdmWindow;
ZSTDMT_serialStateCallbackFn ldmSignal;
ZSTDMT_serialStateCallbackFn ldmUnlock;
ZSTDMT_serialStateCallbackFn unlock;
ZSTDMT_serialStateSkipFn onSkip;
size_t cSize;
unsigned jobID;
} ZSTDMT_RustSerialEnsureFinishedState;
typedef char ZSTDMT_rust_serial_ensure_finished_state_layout[
(offsetof(ZSTDMT_RustSerialEnsureFinishedState, callbackContext) == 0
&& offsetof(ZSTDMT_RustSerialEnsureFinishedState, nextJobID) == sizeof(void*)
&& offsetof(ZSTDMT_RustSerialEnsureFinishedState, lock) == 2 * sizeof(void*)
&& offsetof(ZSTDMT_RustSerialEnsureFinishedState, broadcast) == 3 * sizeof(void*)
&& offsetof(ZSTDMT_RustSerialEnsureFinishedState, ldmLock) == 4 * sizeof(void*)
&& offsetof(ZSTDMT_RustSerialEnsureFinishedState, clearLdmWindow) == 5 * sizeof(void*)
&& offsetof(ZSTDMT_RustSerialEnsureFinishedState, ldmSignal) == 6 * sizeof(void*)
&& offsetof(ZSTDMT_RustSerialEnsureFinishedState, ldmUnlock) == 7 * sizeof(void*)
&& offsetof(ZSTDMT_RustSerialEnsureFinishedState, unlock) == 8 * sizeof(void*)
&& offsetof(ZSTDMT_RustSerialEnsureFinishedState, onSkip) == 9 * sizeof(void*)
&& offsetof(ZSTDMT_RustSerialEnsureFinishedState, cSize) == 10 * sizeof(void*)
&& offsetof(ZSTDMT_RustSerialEnsureFinishedState, jobID)
== 10 * sizeof(void*) + sizeof(size_t)
&& sizeof(ZSTDMT_RustSerialEnsureFinishedState) == 12 * sizeof(void*)) ? 1 : -1];
void ZSTDMT_rust_serialStateEnsureFinishedOrchestrated(
const ZSTDMT_RustSerialEnsureFinishedState* state);
typedef void (*ZSTDMT_waitForJobCompleteFn)(
void* opaque, unsigned jobID, unsigned doneJobID);
unsigned ZSTDMT_rust_waitForAllJobsCompleted(
unsigned doneJobID, unsigned nextJobID, unsigned jobIDMask,
void* opaque, ZSTDMT_waitForJobCompleteFn waitForJob);
typedef void (*ZSTDMT_releaseJobResourceFn)(void* opaque, unsigned jobID);
void ZSTDMT_rust_releaseAllJobResources(
unsigned jobIDMask, void* opaque, ZSTDMT_releaseJobResourceFn releaseJob);
typedef void (*ZSTDMT_waitForLdmLockFn)(void* opaque);
typedef int (*ZSTDMT_waitForLdmOverlapFn)(
void* opaque, void* bufferStart, size_t bufferCapacity);
typedef void (*ZSTDMT_waitForLdmWaitFn)(void* opaque);
typedef void (*ZSTDMT_waitForLdmUnlockFn)(void* opaque);
typedef struct {
void* callbackContext;
void* bufferStart;
size_t bufferCapacity;
int ldmEnabled;
ZSTDMT_waitForLdmLockFn lock;
ZSTDMT_waitForLdmOverlapFn overlaps;
ZSTDMT_waitForLdmWaitFn wait;
ZSTDMT_waitForLdmUnlockFn unlock;
} ZSTDMT_RustWaitForLdmState;
typedef char ZSTDMT_rust_wait_for_ldm_state_layout[
(offsetof(ZSTDMT_RustWaitForLdmState, callbackContext) == 0
&& offsetof(ZSTDMT_RustWaitForLdmState, bufferStart) == sizeof(void*)
&& offsetof(ZSTDMT_RustWaitForLdmState, bufferCapacity) == 2 * sizeof(void*)
&& offsetof(ZSTDMT_RustWaitForLdmState, ldmEnabled) == 3 * sizeof(void*)
&& offsetof(ZSTDMT_RustWaitForLdmState, lock) == 4 * sizeof(void*)
&& offsetof(ZSTDMT_RustWaitForLdmState, overlaps) == 5 * sizeof(void*)
&& offsetof(ZSTDMT_RustWaitForLdmState, wait) == 6 * sizeof(void*)
&& offsetof(ZSTDMT_RustWaitForLdmState, unlock) == 7 * sizeof(void*)
&& sizeof(ZSTDMT_RustWaitForLdmState) == 8 * sizeof(void*)) ? 1 : -1];
void ZSTDMT_rust_waitForLdmComplete(
const ZSTDMT_RustWaitForLdmState* state);
unsigned ZSTDMT_rust_computeTargetJobLog(unsigned windowLog, unsigned chainLog,
int strategy, int enableLdm);
int ZSTDMT_rust_overlapLog(int overlapLog, int strategy);
size_t ZSTDMT_rust_computeOverlapSize(unsigned windowLog, unsigned chainLog,
int strategy, int overlapLog, int enableLdm);
int ZSTDMT_rust_doesOverlapWindow(const void* bufferStart, size_t bufferCapacity,
const void* nextSrc, const void* base,
const void* dictBase, U32 dictLimit, U32 lowLimit);
void ZSTDMT_rust_findSynchronizationPoint(const void* inputSrc, size_t inputSize,
size_t inputPos, size_t targetSectionSize,
const void* inBuffStart, size_t inBuffFilled,
int rsyncable, U64 primePower, U64 hitMask,
size_t* toLoad, int* flush);
U64 ZSTDMT_rust_rollingHashPrimePower(U32 length);
size_t ZSTDMT_rust_nextInputSizeHint(size_t targetSectionSize,
size_t inBuffFilled);
typedef struct {
unsigned requestedNbWorkers;
unsigned currentNbWorkers;
size_t jobSize;
size_t jobSizeMin;
size_t jobSizeMax;
int enableLdm;
unsigned windowLog;
unsigned chainLog;
int strategy;
int overlapLog;
int rsyncable;
size_t roundBuffCapacity;
unsigned allJobsCompleted;
} ZSTDMT_RustInitCStreamProjection;
typedef size_t (*ZSTDMT_initResizeFn)(void* opaque, unsigned nbWorkers);
typedef void (*ZSTDMT_initWaitForAllJobsFn)(void* opaque);
typedef void (*ZSTDMT_initReleaseAllJobResourcesFn)(void* opaque);
typedef void (*ZSTDMT_initApplyParametersFn)(void* opaque, size_t jobSize);
typedef size_t (*ZSTDMT_initDictionaryFn)(void* opaque);
typedef void (*ZSTDMT_initSetSizeFn)(void* opaque, size_t size);
typedef void (*ZSTDMT_initSetRsyncFn)(void* opaque, U64 hitMask, U64 primePower);
typedef void (*ZSTDMT_initSetBufferSizeFn)(void* opaque, size_t size);
typedef size_t (*ZSTDMT_initResizeRoundBufferFn)(void* opaque, size_t capacity);
typedef void (*ZSTDMT_initResetStreamFn)(void* opaque);
typedef size_t (*ZSTDMT_initSerialResetFn)(void* opaque, size_t targetSectionSize);
typedef struct {
unsigned hasDictionary;
unsigned rawContent;
} ZSTDMT_RustDictionaryProjection;
typedef char ZSTDMT_rust_dictionary_projection_layout[
(offsetof(ZSTDMT_RustDictionaryProjection, hasDictionary) == 0
&& offsetof(ZSTDMT_RustDictionaryProjection, rawContent)
== sizeof(unsigned)
&& sizeof(ZSTDMT_RustDictionaryProjection) == 2 * sizeof(unsigned))
? 1 : -1];
size_t ZSTDMT_rust_prepareCStreamDictionary(
const ZSTDMT_RustDictionaryProjection* projection, void* opaque,
ZSTDMT_initResetStreamFn releaseLocal,
ZSTDMT_initDictionaryFn createCopied,
ZSTDMT_initResetStreamFn attachBorrowed);
size_t ZSTDMT_rust_updateCStreamDictionary(
const ZSTDMT_RustDictionaryProjection* projection, void* opaque,
ZSTDMT_initResetStreamFn clearLocal,
ZSTDMT_initResetStreamFn attachBorrowed,
ZSTDMT_initResetStreamFn setRawPrefix,
ZSTDMT_initDictionaryFn createReferenced);
typedef struct {
int enableLdm;
int checksumEnabled;
size_t jobSize;
unsigned windowLog;
int strategy;
unsigned hashLog;
unsigned bucketSizeLog;
unsigned minMatchLength;
unsigned hashRateLog;
unsigned previousHashLog;
unsigned previousBucketSizeLog;
size_t ldmEntrySize;
} ZSTDMT_RustSerialResetProjection;
typedef char ZSTDMT_rust_serial_reset_projection_layout[
(offsetof(ZSTDMT_RustSerialResetProjection, enableLdm) == 0
&& offsetof(ZSTDMT_RustSerialResetProjection, checksumEnabled)
== sizeof(int)
&& offsetof(ZSTDMT_RustSerialResetProjection, jobSize) == 8
&& offsetof(ZSTDMT_RustSerialResetProjection, windowLog)
== (sizeof(void*) == 8 ? 16 : 12)
&& offsetof(ZSTDMT_RustSerialResetProjection, strategy)
== (sizeof(void*) == 8 ? 20 : 16)
&& offsetof(ZSTDMT_RustSerialResetProjection, hashLog)
== (sizeof(void*) == 8 ? 24 : 20)
&& offsetof(ZSTDMT_RustSerialResetProjection, bucketSizeLog)
== (sizeof(void*) == 8 ? 28 : 24)
&& offsetof(ZSTDMT_RustSerialResetProjection, minMatchLength)
== (sizeof(void*) == 8 ? 32 : 28)
&& offsetof(ZSTDMT_RustSerialResetProjection, hashRateLog)
== (sizeof(void*) == 8 ? 36 : 32)
&& offsetof(ZSTDMT_RustSerialResetProjection, previousHashLog)
== (sizeof(void*) == 8 ? 40 : 36)
&& offsetof(ZSTDMT_RustSerialResetProjection, previousBucketSizeLog)
== (sizeof(void*) == 8 ? 44 : 40)
&& offsetof(ZSTDMT_RustSerialResetProjection, ldmEntrySize)
== (sizeof(void*) == 8 ? 48 : 44)
&& sizeof(ZSTDMT_RustSerialResetProjection)
== (sizeof(void*) == 8 ? 56 : 48)) ? 1 : -1];
typedef void (*ZSTDMT_serialResetSetLdmParamsFn)(
void* opaque, int enableLdm, unsigned hashLog,
unsigned bucketSizeLog, unsigned minMatchLength,
unsigned hashRateLog, unsigned windowLog);
typedef void (*ZSTDMT_serialResetVoidFn)(void* opaque);
typedef void (*ZSTDMT_serialResetSetNbSeqFn)(void* opaque, size_t nbSeq);
typedef int (*ZSTDMT_serialResetResizeFn)(
void* opaque, size_t hashSize, size_t numBuckets,
unsigned bucketLog, unsigned previousBucketLog);
typedef void (*ZSTDMT_serialResetZeroTablesFn)(
void* opaque, size_t hashSize, size_t numBuckets);
typedef size_t (*ZSTDMT_serialResetLoadRawDictionaryFn)(
void* opaque, const void* dict, size_t dictSize);
typedef void (*ZSTDMT_serialResetSetLoadedDictEndFn)(
void* opaque, U32 loadedDictEnd);
typedef void (*ZSTDMT_serialResetPublishFn)(void* opaque, size_t jobSize);
typedef struct {
const void* dict;
size_t dictSize;
int dictContentType;
int forceWindow;
} ZSTDMT_RustSerialDictionaryProjection;
typedef char ZSTDMT_rust_serial_dictionary_projection_layout[
(offsetof(ZSTDMT_RustSerialDictionaryProjection, dict) == 0
&& offsetof(ZSTDMT_RustSerialDictionaryProjection, dictSize)
== sizeof(void*)
&& offsetof(ZSTDMT_RustSerialDictionaryProjection, dictContentType)
== sizeof(void*) + sizeof(size_t)
&& offsetof(ZSTDMT_RustSerialDictionaryProjection, forceWindow)
== sizeof(void*) + sizeof(size_t) + sizeof(int)
&& sizeof(ZSTDMT_RustSerialDictionaryProjection)
== sizeof(void*) + sizeof(size_t) + 2 * sizeof(int))
? 1 : -1];
void ZSTDMT_rust_serialStateLoadDictionary(
const ZSTDMT_RustSerialDictionaryProjection* projection,
void* opaque, ZSTDMT_serialResetLoadRawDictionaryFn loadRawDictionary,
ZSTDMT_serialResetSetLoadedDictEndFn setLoadedDictEnd);
int ZSTDMT_rust_serialStateReset(
const ZSTDMT_RustSerialResetProjection* projection, void* opaque,
ZSTDMT_serialResetSetLdmParamsFn setLdmParams,
ZSTDMT_serialResetVoidFn resetNextJob,
ZSTDMT_serialResetVoidFn resetChecksum,
ZSTDMT_serialResetSetNbSeqFn setNbSeq,
ZSTDMT_serialResetVoidFn resetWindow,
ZSTDMT_serialResetResizeFn resizeTables,
ZSTDMT_serialResetZeroTablesFn zeroTables,
ZSTDMT_serialResetVoidFn loadDictionary,
ZSTDMT_serialResetVoidFn copyWindow,
ZSTDMT_serialResetPublishFn publishParams);
typedef void (*ZSTDMT_serialStateVoidFn)(void* opaque);
typedef int (*ZSTDMT_serialStateInitFn)(void* opaque);
int ZSTDMT_rust_serialStateInit(
void* opaque, ZSTDMT_serialStateVoidFn zeroState,
ZSTDMT_serialStateInitFn initMutex,
ZSTDMT_serialStateInitFn initCond,
ZSTDMT_serialStateInitFn initLdmMutex,
ZSTDMT_serialStateInitFn initLdmCond);
void ZSTDMT_rust_serialStateFree(
void* opaque, ZSTDMT_serialStateVoidFn destroyMutex,
ZSTDMT_serialStateVoidFn destroyCond,
ZSTDMT_serialStateVoidFn destroyLdmMutex,
ZSTDMT_serialStateVoidFn destroyLdmCond,
ZSTDMT_serialStateVoidFn freeTables);
typedef void (*ZSTDMT_freeCCtxCallbackFn)(void* opaque);
typedef struct {
void* callbackContext;
size_t providedFactory;
size_t roundBuffPresent;
ZSTDMT_freeCCtxCallbackFn freeFactory;
ZSTDMT_freeCCtxCallbackFn releaseAllJobResources;
ZSTDMT_freeCCtxCallbackFn freeJobs;
ZSTDMT_freeCCtxCallbackFn freeBufferPool;
ZSTDMT_freeCCtxCallbackFn freeCCtxPool;
ZSTDMT_freeCCtxCallbackFn freeSeqPool;
ZSTDMT_freeCCtxCallbackFn freeSerialState;
ZSTDMT_freeCCtxCallbackFn freeCDict;
ZSTDMT_freeCCtxCallbackFn freeRoundBuffer;
ZSTDMT_freeCCtxCallbackFn freeMTctx;
} ZSTDMT_RustFreeCCtxState;
typedef char ZSTDMT_rust_free_cctx_state_layout[
(sizeof(ZSTDMT_freeCCtxCallbackFn) == sizeof(void*)
&& offsetof(ZSTDMT_RustFreeCCtxState, callbackContext) == 0
&& offsetof(ZSTDMT_RustFreeCCtxState, providedFactory) == sizeof(void*)
&& offsetof(ZSTDMT_RustFreeCCtxState, roundBuffPresent) == 2 * sizeof(void*)
&& offsetof(ZSTDMT_RustFreeCCtxState, freeFactory) == 3 * sizeof(void*)
&& offsetof(ZSTDMT_RustFreeCCtxState, releaseAllJobResources) == 4 * sizeof(void*)
&& offsetof(ZSTDMT_RustFreeCCtxState, freeJobs) == 5 * sizeof(void*)
&& offsetof(ZSTDMT_RustFreeCCtxState, freeBufferPool) == 6 * sizeof(void*)
&& offsetof(ZSTDMT_RustFreeCCtxState, freeCCtxPool) == 7 * sizeof(void*)
&& offsetof(ZSTDMT_RustFreeCCtxState, freeSeqPool) == 8 * sizeof(void*)
&& offsetof(ZSTDMT_RustFreeCCtxState, freeSerialState) == 9 * sizeof(void*)
&& offsetof(ZSTDMT_RustFreeCCtxState, freeCDict) == 10 * sizeof(void*)
&& offsetof(ZSTDMT_RustFreeCCtxState, freeRoundBuffer) == 11 * sizeof(void*)
&& offsetof(ZSTDMT_RustFreeCCtxState, freeMTctx) == 12 * sizeof(void*)
&& sizeof(ZSTDMT_RustFreeCCtxState) == 13 * sizeof(void*)) ? 1 : -1];
size_t ZSTDMT_rust_freeCCtx(const ZSTDMT_RustFreeCCtxState* state);
typedef struct {
void* callbackContext;
unsigned requestedNbWorkers;
unsigned maxNbWorkers;
size_t contextSize;
ZSTD_customMem customMem;
} ZSTDMT_RustCreateCCtxProjection;
typedef char ZSTDMT_rust_create_cctx_projection_layout[
(offsetof(ZSTDMT_RustCreateCCtxProjection, callbackContext) == 0
&& offsetof(ZSTDMT_RustCreateCCtxProjection, requestedNbWorkers)
== sizeof(void*)
&& offsetof(ZSTDMT_RustCreateCCtxProjection, maxNbWorkers)
== sizeof(void*) + sizeof(unsigned)
&& offsetof(ZSTDMT_RustCreateCCtxProjection, contextSize)
== (sizeof(void*) == 8 ? 16 : 12)
&& offsetof(ZSTDMT_RustCreateCCtxProjection, customMem)
== (sizeof(void*) == 8 ? 24 : 16)
&& sizeof(ZSTDMT_RustCreateCCtxProjection)
== (sizeof(void*) == 8 ? 48 : 28)) ? 1 : -1];
typedef void* (*ZSTDMT_createCCtxAllocateFn)(void* opaque, size_t size);
typedef size_t (*ZSTDMT_createCCtxSetWorkersFn)(void* opaque, unsigned nbWorkers);
typedef void (*ZSTDMT_createCCtxSetInitialStateFn)(void* opaque);
typedef void* (*ZSTDMT_createCCtxFactoryFn)(void* opaque, unsigned nbWorkers);
typedef void* (*ZSTDMT_createCCtxJobsFn)(void* opaque, unsigned* nbJobs);
typedef void* (*ZSTDMT_createCCtxResourceFn)(void* opaque, unsigned nbWorkers);
typedef int (*ZSTDMT_createCCtxSerialInitFn)(void* opaque);
typedef void (*ZSTDMT_createCCtxFreeFn)(void* opaque);
void* ZSTDMT_rust_createCCtx(
const ZSTDMT_RustCreateCCtxProjection* projection,
ZSTDMT_createCCtxAllocateFn allocate,
ZSTDMT_createCCtxSetWorkersFn setWorkers,
ZSTDMT_createCCtxSetInitialStateFn setInitialState,
ZSTDMT_createCCtxFactoryFn createFactory,
ZSTDMT_createCCtxJobsFn createJobs,
ZSTDMT_createCCtxResourceFn createBufferPool,
ZSTDMT_createCCtxResourceFn createCCtxPool,
ZSTDMT_createCCtxResourceFn createSeqPool,
ZSTDMT_createCCtxSerialInitFn initSerial,
ZSTDMT_createCCtxFreeFn freeContext);
size_t ZSTDMT_rust_initCStream(
const ZSTDMT_RustInitCStreamProjection* projection, void* opaque,
ZSTDMT_initResizeFn resize,
ZSTDMT_initWaitForAllJobsFn waitForAllJobs,
ZSTDMT_initReleaseAllJobResourcesFn releaseAllJobResources,
ZSTDMT_initApplyParametersFn applyParameters,
ZSTDMT_initDictionaryFn prepareDictionary,
ZSTDMT_initSetSizeFn setTargetPrefixSize,
ZSTDMT_initSetSizeFn setTargetSectionSize,
ZSTDMT_initSetRsyncFn setRsync,
ZSTDMT_initSetBufferSizeFn setBufferSize,
ZSTDMT_initResizeRoundBufferFn resizeRoundBuffer,
ZSTDMT_initResetStreamFn resetStream,
ZSTDMT_initDictionaryFn updateDictionary,
ZSTDMT_initSerialResetFn serialReset);
size_t ZSTDMT_rust_initSerialResetResult(int status);
typedef void (*ZSTDMT_resetStreamCallbackFn)(void* opaque);
typedef struct {
void* callbackContext;
ZSTDMT_resetStreamCallbackFn resetRoundBuffer;
ZSTDMT_resetStreamCallbackFn resetInputBuffer;
ZSTDMT_resetStreamCallbackFn resetJobIDs;
ZSTDMT_resetStreamCallbackFn resetFrameFlags;
ZSTDMT_resetStreamCallbackFn resetProgress;
} ZSTDMT_RustResetStreamState;
typedef char ZSTDMT_rust_reset_stream_state_layout[
(sizeof(ZSTDMT_resetStreamCallbackFn) == sizeof(void*)
&& offsetof(ZSTDMT_RustResetStreamState, callbackContext) == 0
&& offsetof(ZSTDMT_RustResetStreamState, resetRoundBuffer) == sizeof(void*)
&& offsetof(ZSTDMT_RustResetStreamState, resetInputBuffer) == 2 * sizeof(void*)
&& offsetof(ZSTDMT_RustResetStreamState, resetJobIDs) == 3 * sizeof(void*)
&& offsetof(ZSTDMT_RustResetStreamState, resetFrameFlags) == 4 * sizeof(void*)
&& offsetof(ZSTDMT_RustResetStreamState, resetProgress) == 5 * sizeof(void*)
&& sizeof(ZSTDMT_RustResetStreamState) == 6 * sizeof(void*)) ? 1 : -1];
void ZSTDMT_rust_resetStream(const ZSTDMT_RustResetStreamState* state);
typedef struct {
void* callbackContext;
unsigned nbWorkers;
} ZSTDMT_RustResizeProjection;
typedef char ZSTDMT_rust_resize_projection_layout[
(offsetof(ZSTDMT_RustResizeProjection, callbackContext) == 0
&& offsetof(ZSTDMT_RustResizeProjection, nbWorkers) == sizeof(void*)
&& sizeof(ZSTDMT_RustResizeProjection)
== (sizeof(void*) == 8 ? 16 : 8)) ? 1 : -1];
typedef size_t (*ZSTDMT_resizeStepFn)(void* opaque, unsigned nbWorkers);
typedef void* (*ZSTDMT_resizeResourceFn)(void* opaque, unsigned nbWorkers);
size_t ZSTDMT_rust_resize(
const ZSTDMT_RustResizeProjection* projection,
ZSTDMT_resizeStepFn resizeFactory,
ZSTDMT_resizeStepFn expandJobs,
ZSTDMT_resizeResourceFn expandBufferPool,
ZSTDMT_resizeResourceFn expandCCtxPool,
ZSTDMT_resizeResourceFn expandSeqPool,
ZSTDMT_resizeStepFn setNbWorkers);
typedef struct {
size_t consumed;
size_t cSize;
const void* srcStart;
size_t srcSize;
const void* prefixStart;
size_t prefixSize;
size_t dstFlushed;
} ZSTDMT_RustJobProjection;
typedef struct {
const void* start;
size_t size;
} ZSTDMT_RustInputRange;
typedef struct {
const void* roundBufferStart;
size_t roundBufferCapacity;
size_t roundBufferPos;
const void* prefixStart;
size_t prefixSize;
size_t targetSectionSize;
const void* inUseStart;
size_t inUseSize;
} ZSTDMT_RustTryGetInputRangeProjection;
typedef struct {
unsigned ready;
unsigned movePrefix;
void* bufferStart;
size_t bufferCapacity;
size_t roundBufferPos;
} ZSTDMT_RustTryGetInputRangeResult;
typedef char ZSTDMT_rust_try_get_input_range_result_layout[
(offsetof(ZSTDMT_RustTryGetInputRangeResult, ready) == 0
&& offsetof(ZSTDMT_RustTryGetInputRangeResult, movePrefix)
== sizeof(unsigned)
&& offsetof(ZSTDMT_RustTryGetInputRangeResult, bufferStart)
== 2 * sizeof(unsigned)
&& offsetof(ZSTDMT_RustTryGetInputRangeResult, bufferCapacity)
== 2 * sizeof(unsigned) + sizeof(void*)
&& offsetof(ZSTDMT_RustTryGetInputRangeResult, roundBufferPos)
== 2 * sizeof(unsigned) + sizeof(void*) + sizeof(size_t)
&& sizeof(ZSTDMT_RustTryGetInputRangeResult)
== 2 * sizeof(unsigned) + sizeof(void*) + 2 * sizeof(size_t))
? 1 : -1];
typedef void (*ZSTDMT_jobProjectionFn)(void* opaque, unsigned jobID,
ZSTDMT_RustJobProjection* projection);
ZSTDMT_RustInputRange ZSTDMT_rust_getInputDataInUse(
unsigned firstJobID, unsigned lastJobID, unsigned jobIDMask,
size_t roundBufferCapacity, size_t targetSectionSize,
void* opaque, ZSTDMT_jobProjectionFn projectJob);
ZSTDMT_RustTryGetInputRangeResult ZSTDMT_rust_tryGetInputRange(
const ZSTDMT_RustTryGetInputRangeProjection* projection);
typedef void (*ZSTDMT_inputRangeWaitFn)(
void* opaque, void* bufferStart, size_t bufferCapacity);
typedef void (*ZSTDMT_inputRangeMovePrefixFn)(
void* opaque, void* destination, const void* source, size_t size,
size_t roundBufferPos);
typedef void (*ZSTDMT_inputRangePublishBufferFn)(
void* opaque, void* bufferStart, size_t bufferCapacity);
int ZSTDMT_rust_commitInputRange(
const ZSTDMT_RustTryGetInputRangeResult* result,
void* roundBufferStart, const void* prefixStart, size_t prefixSize,
void* opaque, ZSTDMT_inputRangeWaitFn waitForLdm,
ZSTDMT_inputRangeMovePrefixFn movePrefix,
ZSTDMT_inputRangePublishBufferFn publishBuffer);
size_t ZSTDMT_rust_toFlushNow(unsigned doneJobID, unsigned nextJobID,
unsigned jobIDMask, void* opaque,
ZSTDMT_jobProjectionFn projectJob);
size_t ZSTDMT_rust_sizeofCCtx(size_t mtctxSize, size_t factorySize,
size_t bufferPoolSize, size_t jobsSize,
size_t cctxPoolSize, size_t seqPoolSize,
size_t cdictSize, size_t roundBuffSize);
ZSTD_frameProgression ZSTDMT_rust_frameProgression(
unsigned long long consumed, size_t inBuffFilled,
unsigned long long produced, unsigned currentJobID);
ZSTD_frameProgression ZSTDMT_rust_frameProgressionAddJob(
ZSTD_frameProgression progression, size_t srcSize, size_t consumed,
size_t produced, size_t flushed);
ZSTD_frameProgression ZSTDMT_rust_frameProgressionWithJobs(
unsigned long long consumed, size_t inBuffFilled,
unsigned long long produced, unsigned currentJobID,
unsigned doneJobID, unsigned nextJobID, unsigned jobReady,
unsigned jobIDMask, void* opaque, ZSTDMT_jobProjectionFn projectJob);
typedef int (*ZSTDMT_jobTableInitFn)(void* jobTable, unsigned nbJobs,
size_t jobSize);
typedef void (*ZSTDMT_jobTableDestroyFn)(void* jobTable, unsigned nbJobs,
size_t jobSize);
typedef struct {
void* jobTable;
unsigned nbJobs;
size_t jobSize;
ZSTD_customMem cMem;
ZSTDMT_jobTableDestroyFn destroySync;
} ZSTDMT_RustFreeJobsTableProjection;
typedef char ZSTDMT_rust_free_jobs_table_projection_layout[
(sizeof(ZSTDMT_jobTableDestroyFn) == sizeof(void*)
&& offsetof(ZSTDMT_RustFreeJobsTableProjection, jobTable) == 0
&& offsetof(ZSTDMT_RustFreeJobsTableProjection, nbJobs)
== sizeof(void*)
&& offsetof(ZSTDMT_RustFreeJobsTableProjection, jobSize)
== (sizeof(void*) == 8 ? 16 : 8)
&& offsetof(ZSTDMT_RustFreeJobsTableProjection, cMem)
== offsetof(ZSTDMT_RustFreeJobsTableProjection, jobSize)
+ sizeof(size_t)
&& offsetof(ZSTDMT_RustFreeJobsTableProjection, destroySync)
== offsetof(ZSTDMT_RustFreeJobsTableProjection, cMem)
+ sizeof(ZSTD_customMem)
&& sizeof(ZSTDMT_RustFreeJobsTableProjection)
== offsetof(ZSTDMT_RustFreeJobsTableProjection, destroySync)
+ sizeof(ZSTDMT_jobTableDestroyFn))
? 1 : -1];
void* ZSTDMT_rust_createJobsTable(
unsigned* nbJobsPtr, size_t jobSize, ZSTD_customMem cMem,
ZSTDMT_jobTableInitFn initSync, ZSTDMT_jobTableDestroyFn destroySync);
size_t ZSTDMT_rust_expandJobsTable(
void** jobTablePtr, unsigned* jobIDMaskPtr, unsigned nbWorkers,
size_t jobSize, ZSTD_customMem cMem,
ZSTDMT_jobTableInitFn initSync,
ZSTDMT_jobTableDestroyFn destroySync);
void ZSTDMT_rust_freeJobsTable(
const ZSTDMT_RustFreeJobsTableProjection* projection);
typedef struct ZSTDMT_bufferPool_s {
ZSTDMT_RustBufferPool* rustPool;
ZSTD_customMem cMem;
} ZSTDMT_bufferPool;
static void ZSTDMT_freeBufferPool(ZSTDMT_bufferPool* bufPool)
{
if (!bufPool) return; /* compatibility with free on NULL */
ZSTDMT_rust_buffer_pool_free(bufPool->rustPool);
ZSTD_customFree(bufPool, bufPool->cMem);
}
static ZSTDMT_bufferPool* ZSTDMT_createBufferPool(unsigned maxNbBuffers, ZSTD_customMem cMem)
{
ZSTDMT_bufferPool* const bufPool =
(ZSTDMT_bufferPool*)ZSTD_customCalloc(sizeof(ZSTDMT_bufferPool), cMem);
if (bufPool==NULL) return NULL;
bufPool->rustPool = ZSTDMT_rust_buffer_pool_create(maxNbBuffers, cMem);
if (bufPool->rustPool == NULL) {
ZSTD_customFree(bufPool, cMem);
return NULL;
}
bufPool->cMem = cMem;
return bufPool;
}
/* only works at initialization, not during compression */
static size_t ZSTDMT_sizeof_bufferPool(ZSTDMT_bufferPool* bufPool)
{
if (bufPool == NULL) return 0;
return ZSTDMT_rust_sizeofBufferPool(
sizeof(*bufPool), ZSTDMT_rust_buffer_pool_sizeof(bufPool->rustPool));
}
/* ZSTDMT_setBufferSize() :
* all future buffers provided by this buffer pool will have _at least_ this size
* note : it's better for all buffers to have same size,
* as they become freely interchangeable, reducing malloc/free usages and memory fragmentation */
static void ZSTDMT_setBufferSize(ZSTDMT_bufferPool* const bufPool, size_t const bSize)
{
DEBUGLOG(4, "ZSTDMT_setBufferSize: bSize = %u", (U32)bSize);
ZSTDMT_rust_buffer_pool_set_size(bufPool->rustPool, bSize);
}
static ZSTDMT_bufferPool* ZSTDMT_expandBufferPool(ZSTDMT_bufferPool* srcBufPool, unsigned maxNbBuffers)
{
if (srcBufPool==NULL) return NULL;
srcBufPool->rustPool = ZSTDMT_rust_buffer_pool_expand(srcBufPool->rustPool, maxNbBuffers);
if (srcBufPool->rustPool == NULL) {
ZSTD_customMem const cMem = srcBufPool->cMem;
ZSTD_customFree(srcBufPool, cMem);
return NULL;
}
return srcBufPool;
}
/** ZSTDMT_getBuffer() :
* assumption : bufPool must be valid
* @return : a buffer, with start pointer and size
* note: allocation may fail, in this case, start==NULL and size==0 */
static Buffer ZSTDMT_getBuffer(ZSTDMT_bufferPool* bufPool)
{
ZSTDMT_RustBuffer const rustBuffer =
ZSTDMT_rust_buffer_pool_get(bufPool->rustPool);
Buffer buffer = { rustBuffer.start, rustBuffer.capacity };
return buffer;
}
static ZSTDMT_RustBuffer ZSTDMT_getBufferForRust(void* opaque)
{
Buffer const buffer = ZSTDMT_getBuffer((ZSTDMT_bufferPool*)opaque);
ZSTDMT_RustBuffer const result = { buffer.start, buffer.capacity };
return result;
}
#if ZSTD_RESIZE_SEQPOOL
/** ZSTDMT_resizeBuffer() :
* assumption : bufPool must be valid
* @return : a buffer that is at least the buffer pool buffer size.
* If a reallocation happens, the data in the input buffer is copied.
*/
static Buffer ZSTDMT_resizeBuffer(ZSTDMT_bufferPool* bufPool, Buffer buffer)
{
ZSTDMT_RustBuffer const rustBuffer = { buffer.start, buffer.capacity };
ZSTDMT_RustBuffer const resized =
ZSTDMT_rust_buffer_pool_resize(bufPool->rustPool, rustBuffer);
Buffer const result = { resized.start, resized.capacity };
return result;
}
#endif
/* store buffer for later re-use, up to pool capacity */
static void ZSTDMT_releaseBuffer(ZSTDMT_bufferPool* bufPool, Buffer buf)
{
ZSTDMT_RustBuffer const rustBuffer = { buf.start, buf.capacity };
ZSTDMT_rust_buffer_pool_release(bufPool->rustPool, rustBuffer);
}
/* We need 2 output buffers per worker since each dstBuff must be flushed after it is released.
* The 3 additional buffers are as follows:
* 1 buffer for input loading
* 1 buffer for "next input" when submitting current one
* 1 buffer stuck in queue */
#define BUF_POOL_MAX_NB_BUFFERS(nbWorkers) (2*(nbWorkers) + 3)
/* After a worker releases its rawSeqStore, it is immediately ready for reuse.
* So we only need one seq buffer per worker. */
#define SEQ_POOL_MAX_NB_BUFFERS(nbWorkers) (nbWorkers)
/* ===== Seq Pool Wrapper ====== */
typedef ZSTDMT_bufferPool ZSTDMT_seqPool;
static size_t ZSTDMT_sizeof_seqPool(ZSTDMT_seqPool* seqPool)
{
return ZSTDMT_sizeof_bufferPool(seqPool);
}
static RawSeqStore_t bufferToSeq(Buffer buffer)
{
ZSTDMT_RustRawSeqStore const rustSeq =
ZSTDMT_rust_bufferToSeq((ZSTDMT_RustBuffer){ buffer.start, buffer.capacity });
RawSeqStore_t seq = {
(rawSeq*)rustSeq.seq,
rustSeq.pos,
rustSeq.posInSequence,
rustSeq.size,
rustSeq.capacity
};
return seq;
}
static Buffer seqToBuffer(RawSeqStore_t seq)
{
ZSTDMT_RustRawSeqStore const rustSeq = {
seq.seq,
seq.pos,
seq.posInSequence,
seq.size,
seq.capacity
};
ZSTDMT_RustBuffer const rustBuffer = ZSTDMT_rust_seqToBuffer(rustSeq);
return (Buffer){ rustBuffer.start, rustBuffer.capacity };
}
static RawSeqStore_t ZSTDMT_getSeq(ZSTDMT_seqPool* seqPool)
{
return bufferToSeq(ZSTDMT_getBuffer(seqPool));
}
#if ZSTD_RESIZE_SEQPOOL
static RawSeqStore_t ZSTDMT_resizeSeq(ZSTDMT_seqPool* seqPool, RawSeqStore_t seq)
{
return bufferToSeq(ZSTDMT_resizeBuffer(seqPool, seqToBuffer(seq)));
}
#endif
static void ZSTDMT_releaseSeq(ZSTDMT_seqPool* seqPool, RawSeqStore_t seq)
{
ZSTDMT_releaseBuffer(seqPool, seqToBuffer(seq));
}
static void ZSTDMT_setNbSeq(ZSTDMT_seqPool* const seqPool, size_t const nbSeq)
{
ZSTDMT_setBufferSize(seqPool, nbSeq * sizeof(rawSeq));
}
static ZSTDMT_seqPool* ZSTDMT_createSeqPool(unsigned nbWorkers, ZSTD_customMem cMem)
{
ZSTDMT_seqPool* const seqPool = ZSTDMT_createBufferPool(SEQ_POOL_MAX_NB_BUFFERS(nbWorkers), cMem);
if (seqPool == NULL) return NULL;
ZSTDMT_setNbSeq(seqPool, 0);
return seqPool;
}
static void ZSTDMT_freeSeqPool(ZSTDMT_seqPool* seqPool)
{
ZSTDMT_freeBufferPool(seqPool);
}
static ZSTDMT_seqPool* ZSTDMT_expandSeqPool(ZSTDMT_seqPool* pool, U32 nbWorkers)
{
return ZSTDMT_expandBufferPool(pool, SEQ_POOL_MAX_NB_BUFFERS(nbWorkers));
}
/* ===== CCtx Pool ===== */
/* a single CCtx Pool can be invoked from multiple threads in parallel */
typedef struct ZSTDMT_RustCCtxPool_s ZSTDMT_RustCCtxPool;
ZSTDMT_RustCCtxPool* ZSTDMT_rust_cctx_pool_create(unsigned nbWorkers,
ZSTD_customMem cMem);
void ZSTDMT_rust_cctx_pool_free(ZSTDMT_RustCCtxPool* pool);
size_t ZSTDMT_rust_cctx_pool_sizeof(const ZSTDMT_RustCCtxPool* pool);
size_t ZSTDMT_rust_sizeofCCtxPool(size_t wrapperSize, size_t rustPoolSize);
ZSTDMT_RustCCtxPool* ZSTDMT_rust_cctx_pool_expand(ZSTDMT_RustCCtxPool* pool,
unsigned nbWorkers);
ZSTD_CCtx* ZSTDMT_rust_cctx_pool_get(ZSTDMT_RustCCtxPool* pool);
void ZSTDMT_rust_cctx_pool_release(ZSTDMT_RustCCtxPool* pool, ZSTD_CCtx* cctx);
typedef struct {
ZSTDMT_RustCCtxPool* rustPool;
int totalCCtx; /* kept for the existing MT parameter diagnostics */
ZSTD_customMem cMem;
} ZSTDMT_CCtxPool;
/* note : all CCtx borrowed from the pool must be reverted back to the pool _before_ freeing the pool */
static void ZSTDMT_freeCCtxPool(ZSTDMT_CCtxPool* pool)
{
if (!pool) return;
ZSTDMT_rust_cctx_pool_free(pool->rustPool);
ZSTD_customFree(pool, pool->cMem);
}
/* ZSTDMT_createCCtxPool() :
* implies nbWorkers >= 1 , checked by caller ZSTDMT_createCCtx() */
static ZSTDMT_CCtxPool* ZSTDMT_createCCtxPool(int nbWorkers,
ZSTD_customMem cMem)
{
ZSTDMT_CCtxPool* const cctxPool =
(ZSTDMT_CCtxPool*) ZSTD_customCalloc(sizeof(ZSTDMT_CCtxPool), cMem);
assert(nbWorkers > 0);
if (!cctxPool) return NULL;
cctxPool->rustPool = ZSTDMT_rust_cctx_pool_create((unsigned)nbWorkers, cMem);
if (cctxPool->rustPool == NULL) {
ZSTD_customFree(cctxPool, cMem);
return NULL;
}
cctxPool->totalCCtx = nbWorkers;
cctxPool->cMem = cMem;
DEBUGLOG(3, "cctxPool created, with %u workers", nbWorkers);
return cctxPool;
}
static ZSTDMT_CCtxPool* ZSTDMT_expandCCtxPool(ZSTDMT_CCtxPool* srcPool,
int nbWorkers)
{
if (srcPool==NULL) return NULL;
srcPool->rustPool = ZSTDMT_rust_cctx_pool_expand(srcPool->rustPool,
(unsigned)nbWorkers);
if (srcPool->rustPool == NULL) {
ZSTD_customMem const cMem = srcPool->cMem;
ZSTD_customFree(srcPool, cMem);
return NULL;
}
srcPool->totalCCtx = nbWorkers;
return srcPool;
}
/* only works during initialization phase, not during compression */
static size_t ZSTDMT_sizeof_CCtxPool(ZSTDMT_CCtxPool* cctxPool)
{
size_t rustPoolSize;
if (cctxPool == NULL) return 0;
rustPoolSize = ZSTDMT_rust_cctx_pool_sizeof(cctxPool->rustPool);
return ZSTDMT_rust_sizeofCCtxPool(sizeof(*cctxPool), rustPoolSize);
}
static ZSTD_CCtx* ZSTDMT_getCCtx(ZSTDMT_CCtxPool* cctxPool)
{
DEBUGLOG(5, "ZSTDMT_getCCtx");
return ZSTDMT_rust_cctx_pool_get(cctxPool->rustPool);
}
static void ZSTDMT_releaseCCtx(ZSTDMT_CCtxPool* pool, ZSTD_CCtx* cctx)
{
ZSTDMT_rust_cctx_pool_release(pool->rustPool, cctx);
}
/* ==== Serial State ==== */
typedef struct {
void const* start;
size_t size;
} Range;
typedef struct {
/* All variables in the struct are protected by mutex. */
ZSTD_pthread_mutex_t mutex;
ZSTD_pthread_cond_t cond;
ZSTD_CCtx_params params;
ldmState_t ldmState;
XXH64_state_t xxhState;
unsigned nextJobID;
/* Protects ldmWindow.
* Must be acquired after the main mutex when acquiring both.
*/
ZSTD_pthread_mutex_t ldmWindowMutex;
ZSTD_pthread_cond_t ldmWindowCond; /* Signaled when ldmWindow is updated */
ZSTD_window_t ldmWindow; /* A thread-safe copy of ldmState.window */
} SerialState;
typedef struct {
SerialState* serialState;
ZSTDMT_seqPool* seqPool;
ZSTD_CCtx_params* params;
const void* dict;
size_t dictSize;
ZSTD_dictContentType_e dictContentType;
ZSTD_customMem cMem;
} ZSTDMT_serialResetContext;
static void ZSTDMT_serialResetSetLdmParams(
void* opaque, int enableLdm, unsigned hashLog,
unsigned bucketSizeLog, unsigned minMatchLength,
unsigned hashRateLog, unsigned windowLog)
{
ZSTDMT_serialResetContext* const context = (ZSTDMT_serialResetContext*)opaque;
ldmParams_t* const ldmParams = &context->params->ldmParams;
ldmParams->enableLdm = (ZSTD_ParamSwitch_e)enableLdm;
ldmParams->hashLog = hashLog;
ldmParams->bucketSizeLog = bucketSizeLog;
ldmParams->minMatchLength = minMatchLength;
ldmParams->hashRateLog = hashRateLog;
ldmParams->windowLog = windowLog;
}
static void ZSTDMT_serialResetNextJob(void* opaque)
{
ZSTDMT_serialResetContext* const context = (ZSTDMT_serialResetContext*)opaque;
context->serialState->nextJobID = 0;
}
static void ZSTDMT_serialResetChecksum(void* opaque)
{
ZSTDMT_serialResetContext* const context = (ZSTDMT_serialResetContext*)opaque;
XXH64_reset(&context->serialState->xxhState, 0);
}
static void ZSTDMT_serialResetSetNbSeq(void* opaque, size_t nbSeq)
{
ZSTDMT_serialResetContext* const context = (ZSTDMT_serialResetContext*)opaque;
ZSTDMT_setNbSeq(context->seqPool, nbSeq);
}
static void ZSTDMT_serialResetWindow(void* opaque)
{
ZSTDMT_serialResetContext* const context = (ZSTDMT_serialResetContext*)opaque;
ZSTD_window_init(&context->serialState->ldmState.window);
}
static int ZSTDMT_serialResetResizeTables(
void* opaque, size_t hashSize, size_t numBuckets,
unsigned bucketLog, unsigned previousBucketLog)
{
ZSTDMT_serialResetContext* const context = (ZSTDMT_serialResetContext*)opaque;
SerialState* const serialState = context->serialState;
ldmParams_t const* const ldmParams = &context->params->ldmParams;
if (serialState->ldmState.hashTable == NULL ||
serialState->params.ldmParams.hashLog < ldmParams->hashLog) {
ZSTD_customFree(serialState->ldmState.hashTable, context->cMem);
serialState->ldmState.hashTable = (ldmEntry_t*)ZSTD_customMalloc(
hashSize, context->cMem);
}
if (serialState->ldmState.bucketOffsets == NULL ||
previousBucketLog < bucketLog) {
ZSTD_customFree(serialState->ldmState.bucketOffsets, context->cMem);
serialState->ldmState.bucketOffsets = (BYTE*)ZSTD_customMalloc(
numBuckets, context->cMem);
}
return !serialState->ldmState.hashTable || !serialState->ldmState.bucketOffsets;
}
static void ZSTDMT_serialResetZeroTables(
void* opaque, size_t hashSize, size_t numBuckets)
{
ZSTDMT_serialResetContext* const context = (ZSTDMT_serialResetContext*)opaque;
SerialState* const serialState = context->serialState;
ZSTD_memset(serialState->ldmState.hashTable, 0, hashSize);
ZSTD_memset(serialState->ldmState.bucketOffsets, 0, numBuckets);
}
static size_t ZSTDMT_serialResetLoadRawDictionary(
void* opaque, const void* dict, size_t dictSize)
{
ZSTDMT_serialResetContext* const context = (ZSTDMT_serialResetContext*)opaque;
SerialState* const serialState = context->serialState;
BYTE const* const dictEnd = (const BYTE*)dict + dictSize;
ZSTD_window_update(&serialState->ldmState.window,
dict, dictSize,
/* forceNonContiguous */ 0);
ZSTD_ldm_fillHashTable(&serialState->ldmState,
(const BYTE*)dict, dictEnd,
&context->params->ldmParams);
return (size_t)(dictEnd - serialState->ldmState.window.base);
}
static void ZSTDMT_serialResetSetLoadedDictEnd(
void* opaque, U32 loadedDictEnd)
{
ZSTDMT_serialResetContext* const context = (ZSTDMT_serialResetContext*)opaque;
context->serialState->ldmState.loadedDictEnd = loadedDictEnd;
}
static void ZSTDMT_serialResetLoadDictionary(void* opaque)
{
ZSTDMT_serialResetContext* const context = (ZSTDMT_serialResetContext*)opaque;
ZSTDMT_RustSerialDictionaryProjection const projection = {
context->dict,
context->dictSize,
(int)context->dictContentType,
context->params->forceWindow
};
ZSTDMT_rust_serialStateLoadDictionary(
&projection, context,
ZSTDMT_serialResetLoadRawDictionary,
ZSTDMT_serialResetSetLoadedDictEnd);
}
static void ZSTDMT_serialResetCopyWindow(void* opaque)
{
ZSTDMT_serialResetContext* const context = (ZSTDMT_serialResetContext*)opaque;
context->serialState->ldmWindow = context->serialState->ldmState.window;
}
static void ZSTDMT_serialResetPublishParams(void* opaque, size_t jobSize)
{
ZSTDMT_serialResetContext* const context = (ZSTDMT_serialResetContext*)opaque;
context->serialState->params = *context->params;
context->serialState->params.jobSize = (U32)jobSize;
}
static int
ZSTDMT_serialState_reset(SerialState* serialState,
ZSTDMT_seqPool* seqPool,
ZSTD_CCtx_params params,
size_t jobSize,
const void* dict, size_t const dictSize,
ZSTD_dictContentType_e dictContentType)
{
ZSTDMT_serialResetContext context;
ZSTDMT_RustSerialResetProjection const projection = {
params.ldmParams.enableLdm,
params.fParams.checksumFlag,
jobSize,
params.cParams.windowLog,
params.cParams.strategy,
params.ldmParams.hashLog,
params.ldmParams.bucketSizeLog,
params.ldmParams.minMatchLength,
params.ldmParams.hashRateLog,
serialState->params.ldmParams.hashLog,
serialState->params.ldmParams.bucketSizeLog,
sizeof(ldmEntry_t)
};
/* Rust owns LDM normalization; retain the original diagnostic only. */
if (params.ldmParams.enableLdm == ZSTD_ps_enable) {
DEBUGLOG(4, "LDM window size = %u KB", (1U << params.cParams.windowLog) >> 10);
}
context.serialState = serialState;
context.seqPool = seqPool;
context.params = &params;
context.dict = dict;
context.dictSize = dictSize;
context.dictContentType = dictContentType;
context.cMem = params.customMem;
if (ZSTDMT_rust_serialStateReset(
&projection, &context,
ZSTDMT_serialResetSetLdmParams,
ZSTDMT_serialResetNextJob,
ZSTDMT_serialResetChecksum,
ZSTDMT_serialResetSetNbSeq,
ZSTDMT_serialResetWindow,
ZSTDMT_serialResetResizeTables,
ZSTDMT_serialResetZeroTables,
ZSTDMT_serialResetLoadDictionary,
ZSTDMT_serialResetCopyWindow,
ZSTDMT_serialResetPublishParams)) {
return 1;
}
return 0;
}
static void ZSTDMT_serialState_zero(void* opaque)
{
ZSTD_memset(opaque, 0, sizeof(SerialState));
}
static int ZSTDMT_serialState_initMutex(void* opaque)
{
SerialState* const serialState = (SerialState*)opaque;
return ZSTD_pthread_mutex_init(&serialState->mutex, NULL);
}
static int ZSTDMT_serialState_initCond(void* opaque)
{
SerialState* const serialState = (SerialState*)opaque;
return ZSTD_pthread_cond_init(&serialState->cond, NULL);
}
static int ZSTDMT_serialState_initLdmMutex(void* opaque)
{
SerialState* const serialState = (SerialState*)opaque;
return ZSTD_pthread_mutex_init(&serialState->ldmWindowMutex, NULL);
}
static int ZSTDMT_serialState_initLdmCond(void* opaque)
{
SerialState* const serialState = (SerialState*)opaque;
return ZSTD_pthread_cond_init(&serialState->ldmWindowCond, NULL);
}
static void ZSTDMT_serialState_destroyMutex(void* opaque)
{
SerialState* const serialState = (SerialState*)opaque;
ZSTD_pthread_mutex_destroy(&serialState->mutex);
}
static void ZSTDMT_serialState_destroyCond(void* opaque)
{
SerialState* const serialState = (SerialState*)opaque;
ZSTD_pthread_cond_destroy(&serialState->cond);
}
static void ZSTDMT_serialState_destroyLdmMutex(void* opaque)
{
SerialState* const serialState = (SerialState*)opaque;
ZSTD_pthread_mutex_destroy(&serialState->ldmWindowMutex);
}
static void ZSTDMT_serialState_destroyLdmCond(void* opaque)
{
SerialState* const serialState = (SerialState*)opaque;
ZSTD_pthread_cond_destroy(&serialState->ldmWindowCond);
}
static void ZSTDMT_serialState_freeTables(void* opaque)
{
SerialState* const serialState = (SerialState*)opaque;
ZSTD_customMem const cMem = serialState->params.customMem;
ZSTD_customFree(serialState->ldmState.hashTable, cMem);
ZSTD_customFree(serialState->ldmState.bucketOffsets, cMem);
}
static int ZSTDMT_serialState_init(SerialState* serialState)
{
return ZSTDMT_rust_serialStateInit(
serialState,
ZSTDMT_serialState_zero,
ZSTDMT_serialState_initMutex,
ZSTDMT_serialState_initCond,
ZSTDMT_serialState_initLdmMutex,
ZSTDMT_serialState_initLdmCond);
}
static void ZSTDMT_serialState_free(SerialState* serialState)
{
ZSTDMT_rust_serialStateFree(
serialState,
ZSTDMT_serialState_destroyMutex,
ZSTDMT_serialState_destroyCond,
ZSTDMT_serialState_destroyLdmMutex,
ZSTDMT_serialState_destroyLdmCond,
ZSTDMT_serialState_freeTables);
}
static void ZSTDMT_serialState_lock(void* opaque)
{
SerialState* const serialState = (SerialState*)opaque;
ZSTD_PTHREAD_MUTEX_LOCK(&serialState->mutex);
}
static void ZSTDMT_serialState_wait(void* opaque)
{
SerialState* const serialState = (SerialState*)opaque;
DEBUGLOG(5, "wait for serialState->cond");
ZSTD_pthread_cond_wait(&serialState->cond, &serialState->mutex);
}
static void ZSTDMT_serialState_broadcast(void* opaque)
{
SerialState* const serialState = (SerialState*)opaque;
ZSTD_pthread_cond_broadcast(&serialState->cond);
}
static void ZSTDMT_serialState_unlock(void* opaque)
{
SerialState* const serialState = (SerialState*)opaque;
ZSTD_pthread_mutex_unlock(&serialState->mutex);
}
/* Rust owns the serial turn/skip decision and operation ordering. The wait
* callback intentionally leaves the main serial mutex locked; the advance
* callback releases it after Rust has performed the current turn's work. */
static int ZSTDMT_serialState_waitForTurn(void* opaque, unsigned jobID)
{
SerialState* const serialState = (SerialState*)opaque;
ZSTDMT_RustSerialWaitForTurnState state;
state.callbackContext = serialState;
state.nextJobID = &serialState->nextJobID;
state.lock = ZSTDMT_serialState_lock;
state.wait = ZSTDMT_serialState_wait;
state.jobID = jobID;
return ZSTDMT_rust_serialStateWaitForTurn(&state);
}
static void ZSTDMT_serialState_updateLdmWindow(
void* opaque, ZSTDMT_RustRawSeqStore* seqStore,
const void* src, size_t srcSize)
{
SerialState* const serialState = (SerialState*)opaque;
RawSeqStore_t* const cSeqStore = (RawSeqStore_t*)seqStore;
DEBUGLOG(6, "ZSTDMT_serialState_genSequences: LDM update");
assert(cSeqStore->seq != NULL && cSeqStore->pos == 0 &&
cSeqStore->size == 0 && cSeqStore->capacity > 0);
assert(srcSize <= serialState->params.jobSize);
ZSTD_window_update(&serialState->ldmState.window, src, srcSize,
/* forceNonContiguous */ 0);
}
static void ZSTDMT_serialState_generateLdmSequences(
void* opaque, ZSTDMT_RustRawSeqStore* seqStore,
const void* src, size_t srcSize)
{
SerialState* const serialState = (SerialState*)opaque;
RawSeqStore_t* const cSeqStore = (RawSeqStore_t*)seqStore;
size_t error;
error = ZSTD_ldm_generateSequences(
&serialState->ldmState, cSeqStore,
&serialState->params.ldmParams, src, srcSize);
/* We provide a large enough buffer to never fail. */
assert(!ZSTD_isError(error)); (void)error;
}
static void ZSTDMT_serialState_publishLdmWindow(void* opaque)
{
SerialState* const serialState = (SerialState*)opaque;
/* Update ldmWindow to match the ldmState.window and signal the main
* thread if it is waiting for a buffer. */
ZSTD_PTHREAD_MUTEX_LOCK(&serialState->ldmWindowMutex);
serialState->ldmWindow = serialState->ldmState.window;
ZSTD_pthread_cond_signal(&serialState->ldmWindowCond);
ZSTD_pthread_mutex_unlock(&serialState->ldmWindowMutex);
}
static void ZSTDMT_serialState_updateChecksum(
void* opaque, const void* src, size_t srcSize)
{
SerialState* const serialState = (SerialState*)opaque;
XXH64_update(&serialState->xxhState, src, srcSize);
}
static void ZSTDMT_serialState_advance(void* opaque)
{
SerialState* const serialState = (SerialState*)opaque;
ZSTDMT_RustSerialAdvanceState state;
state.callbackContext = serialState;
state.nextJobID = &serialState->nextJobID;
state.broadcast = ZSTDMT_serialState_broadcast;
state.unlock = ZSTDMT_serialState_unlock;
ZSTDMT_rust_serialStateAdvance(&state);
}
static void ZSTDMT_serialState_ldmLock(void* opaque)
{
SerialState* const serialState = (SerialState*)opaque;
ZSTD_PTHREAD_MUTEX_LOCK(&serialState->ldmWindowMutex);
}
static void ZSTDMT_serialState_clearLdmWindow(void* opaque)
{
SerialState* const serialState = (SerialState*)opaque;
ZSTD_rust_windowClear((size_t)(serialState->ldmWindow.nextSrc -
serialState->ldmWindow.base),
&serialState->ldmWindow.lowLimit,
&serialState->ldmWindow.dictLimit);
}
static void ZSTDMT_serialState_ldmSignal(void* opaque)
{
SerialState* const serialState = (SerialState*)opaque;
ZSTD_pthread_cond_signal(&serialState->ldmWindowCond);
}
static void ZSTDMT_serialState_ldmUnlock(void* opaque)
{
SerialState* const serialState = (SerialState*)opaque;
ZSTD_pthread_mutex_unlock(&serialState->ldmWindowMutex);
}
static void ZSTDMT_serialState_onSkip(void* opaque, unsigned jobID, size_t cSize)
{
(void)opaque;
assert(ZSTD_isError(cSize)); (void)cSize;
DEBUGLOG(5, "Skipping past job %u because of error", jobID);
}
/* Rust owns the non-empty/LDM gate and the point at which this callback is
* invoked. Keep only the private codec operation on the C side. */
static void ZSTDMT_compressionJobReferenceSequences(
void* opaque, void* cctx, void* sequences, size_t nbSequences)
{
(void)opaque;
assert(cctx != NULL);
DEBUGLOG(5, "ZSTDMT_compressionJob: uploading %u external sequences",
(unsigned)nbSequences);
ZSTD_referenceExternalSequences((ZSTD_CCtx*)cctx,
(rawSeq*)sequences, nbSequences);
}
static void ZSTDMT_serialState_ensureFinished(SerialState* serialState,
unsigned jobID, size_t cSize)
{
ZSTDMT_RustSerialEnsureFinishedState state;
state.callbackContext = serialState;
state.nextJobID = &serialState->nextJobID;
state.lock = ZSTDMT_serialState_lock;
state.broadcast = ZSTDMT_serialState_broadcast;
state.ldmLock = ZSTDMT_serialState_ldmLock;
state.clearLdmWindow = ZSTDMT_serialState_clearLdmWindow;
state.ldmSignal = ZSTDMT_serialState_ldmSignal;
state.ldmUnlock = ZSTDMT_serialState_ldmUnlock;
state.unlock = ZSTDMT_serialState_unlock;
state.onSkip = ZSTDMT_serialState_onSkip;
state.cSize = cSize;
state.jobID = jobID;
ZSTDMT_rust_serialStateEnsureFinishedOrchestrated(&state);
}
/* ------------------------------------------ */
/* ===== Worker thread ===== */
/* ------------------------------------------ */
static const Range kNullRange = { NULL, 0 };
typedef struct {
size_t consumed; /* SHARED - set0 by mtctx, then modified by worker AND read by mtctx */
size_t cSize; /* SHARED - set0 by mtctx, then modified by worker AND read by mtctx, then set0 by mtctx */
ZSTD_pthread_mutex_t job_mutex; /* Thread-safe - used by mtctx and worker */
ZSTD_pthread_cond_t job_cond; /* Thread-safe - used by mtctx and worker */
ZSTDMT_CCtxPool* cctxPool; /* Thread-safe - used by mtctx and (all) workers */
ZSTDMT_bufferPool* bufPool; /* Thread-safe - used by mtctx and (all) workers */
ZSTDMT_seqPool* seqPool; /* Thread-safe - used by mtctx and (all) workers */
SerialState* serial; /* Thread-safe - used by mtctx and (all) workers */
Buffer dstBuff; /* set by worker (or mtctx), then read by worker & mtctx, then modified by mtctx => no barrier */
Range prefix; /* set by mtctx, then read by worker & mtctx => no barrier */
Range src; /* set by mtctx, then read by worker & mtctx => no barrier */
unsigned jobID; /* set by mtctx, then read by worker => no barrier */
unsigned firstJob; /* set by mtctx, then read by worker => no barrier */
unsigned lastJob; /* set by mtctx, then read by worker => no barrier */
ZSTD_CCtx_params params; /* set by mtctx, then read by worker => no barrier */
const ZSTD_CDict* cdict; /* set by mtctx, then read by worker => no barrier */
unsigned long long fullFrameSize; /* set by mtctx, then read by worker => no barrier */
size_t dstFlushed; /* used only by mtctx */
unsigned frameChecksumNeeded; /* used only by mtctx */
} ZSTDMT_jobDescription;
static void ZSTDMT_compressionJobProgressLock(void* opaque)
{
ZSTDMT_jobDescription* const job = (ZSTDMT_jobDescription*)opaque;
ZSTD_PTHREAD_MUTEX_LOCK(&job->job_mutex);
}
static void ZSTDMT_compressionJobProgressSignal(void* opaque)
{
ZSTDMT_jobDescription* const job = (ZSTDMT_jobDescription*)opaque;
ZSTD_pthread_cond_signal(&job->job_cond); /* warns some more data is ready to be flushed */
}
static void ZSTDMT_compressionJobProgressUnlock(void* opaque)
{
ZSTDMT_jobDescription* const job = (ZSTDMT_jobDescription*)opaque;
ZSTD_pthread_mutex_unlock(&job->job_mutex);
}
static void ZSTDMT_compressionJobProgressDebug(
void* opaque, size_t cSize, size_t totalCSize)
{
(void)opaque;
DEBUGLOG(5, "ZSTDMT_compressionJob: compress new block : cSize==%u bytes (total: %u)",
(U32)cSize, (U32)totalCSize);
}
typedef struct {
ZSTDMT_jobDescription* job;
ZSTD_CCtx_params jobParams;
ZSTD_CCtx* cctx;
RawSeqStore_t rawSeqStore;
Buffer dstBuff;
ZSTDMT_RustCompressionJobFrameHeaderState frameHeaderState;
} ZSTDMT_compressionJobState;
static void ZSTDMT_compressionJobAcquireCCtx(void* opaque)
{
ZSTDMT_compressionJobState* const state =
(ZSTDMT_compressionJobState*)opaque;
state->cctx = ZSTDMT_getCCtx(state->job->cctxPool);
}
static void ZSTDMT_compressionJobAcquireRawSeqStore(void* opaque)
{
ZSTDMT_compressionJobState* const state =
(ZSTDMT_compressionJobState*)opaque;
state->rawSeqStore = ZSTDMT_getSeq(state->job->seqPool);
}
static int ZSTDMT_compressionJobHasCCtx(void* opaque)
{
ZSTDMT_compressionJobState* const state =
(ZSTDMT_compressionJobState*)opaque;
return state->cctx != NULL;
}
static size_t ZSTDMT_compressionJobAcquireDestinationBuffer(void* opaque)
{
ZSTDMT_compressionJobState* const state =
(ZSTDMT_compressionJobState*)opaque;
ZSTDMT_jobDescription* const job = state->job;
state->dstBuff = ZSTDMT_getBuffer(job->bufPool);
if (state->dstBuff.start == NULL) return ERROR(memory_allocation);
job->dstBuff = state->dstBuff;
return 0;
}
static int ZSTDMT_compressionJobHasRawSeqStore(void* opaque)
{
ZSTDMT_compressionJobState* const state =
(ZSTDMT_compressionJobState*)opaque;
return state->rawSeqStore.seq != NULL;
}
static void ZSTDMT_compressionJobPublishDestination(void* opaque)
{
ZSTDMT_compressionJobState* const state =
(ZSTDMT_compressionJobState*)opaque;
state->frameHeaderState.dst = state->dstBuff.start;
state->frameHeaderState.dstCapacity = state->dstBuff.capacity;
}
static size_t ZSTDMT_compressionJobAcquireResources(void* opaque)
{
ZSTDMT_compressionJobState* const state =
(ZSTDMT_compressionJobState*)opaque;
ZSTDMT_jobDescription* const job = state->job;
ZSTDMT_RustCompressionJobResourceProjection const projection = {
state->jobParams.ldmParams.enableLdm == ZSTD_ps_enable,
job->dstBuff.start != NULL
};
state->dstBuff = job->dstBuff;
DEBUGLOG(5, "ZSTDMT_compressionJob: job %u", job->jobID);
return ZSTDMT_rust_compressionJobAcquireResources(
&projection, state,
ZSTDMT_compressionJobAcquireCCtx,
ZSTDMT_compressionJobAcquireRawSeqStore,
ZSTDMT_compressionJobHasCCtx,
ZSTDMT_compressionJobAcquireDestinationBuffer,
ZSTDMT_compressionJobHasRawSeqStore,
ZSTDMT_compressionJobPublishDestination);
}
static void ZSTDMT_compressionJobPrepareParameters(void* opaque)
{
ZSTDMT_compressionJobState* const state =
(ZSTDMT_compressionJobState*)opaque;
ZSTDMT_jobDescription* const job = state->job;
ZSTDMT_RustCompressionJobParameters const parameters =
ZSTDMT_rust_prepareCompressionJobParameters(
job->jobID,
state->jobParams.fParams.checksumFlag,
state->jobParams.ldmParams.enableLdm,
(unsigned)state->jobParams.nbWorkers);
state->jobParams.fParams.checksumFlag = parameters.checksumFlag;
state->jobParams.ldmParams.enableLdm = parameters.ldmEnable;
state->jobParams.nbWorkers = (int)parameters.nbWorkers;
}
static void ZSTDMT_compressionJobGenerateSequences(void* opaque)
{
ZSTDMT_compressionJobState* const state =
(ZSTDMT_compressionJobState*)opaque;
ZSTDMT_jobDescription* const job = state->job;
/* Perform serial step as early as possible. */
ZSTDMT_rust_serialStateGenSequences(
(ZSTDMT_RustRawSeqStore*)&state->rawSeqStore,
job->src.start, job->src.size, job->jobID,
job->serial->params.ldmParams.enableLdm == ZSTD_ps_enable,
job->serial->params.fParams.checksumFlag,
job->serial,
ZSTDMT_serialState_waitForTurn,
ZSTDMT_serialState_updateLdmWindow,
ZSTDMT_serialState_generateLdmSequences,
ZSTDMT_serialState_publishLdmWindow,
ZSTDMT_serialState_updateChecksum,
ZSTDMT_serialState_advance);
}
static size_t ZSTDMT_compressionJobBeginWithCDict(void* opaque);
static size_t ZSTDMT_compressionJobSetForceMaxWindow(void* opaque, int value);
static size_t ZSTDMT_compressionJobSetDeterministicRefPrefix(void* opaque);
static size_t ZSTDMT_compressionJobBeginWithPrefix(void* opaque);
static void ZSTDMT_compressionJobPublishFrameHeader(void* opaque);
static size_t ZSTDMT_compressionJobBegin(void* opaque)
{
ZSTDMT_compressionJobState* const state =
(ZSTDMT_compressionJobState*)opaque;
ZSTDMT_jobDescription* const job = state->job;
ZSTDMT_RustCompressionJobBeginProjection const projection = {
job->firstJob,
(unsigned)(job->cdict != NULL)
};
return ZSTDMT_rust_compressionJobBegin(
&projection, state,
ZSTDMT_compressionJobBeginWithCDict,
ZSTDMT_compressionJobSetForceMaxWindow,
ZSTDMT_compressionJobSetDeterministicRefPrefix,
ZSTDMT_compressionJobBeginWithPrefix,
ZSTDMT_compressionJobPublishFrameHeader);
}
static size_t ZSTDMT_compressionJobBeginWithCDict(void* opaque)
{
ZSTDMT_compressionJobState* const state =
(ZSTDMT_compressionJobState*)opaque;
ZSTDMT_jobDescription* const job = state->job;
return ZSTD_compressBegin_advanced_internal(
state->cctx, NULL, 0, ZSTD_dct_auto, ZSTD_dtlm_fast, job->cdict,
&state->jobParams, job->fullFrameSize);
}
static size_t ZSTDMT_compressionJobSetForceMaxWindow(void* opaque, int value)
{
ZSTDMT_compressionJobState* const state =
(ZSTDMT_compressionJobState*)opaque;
return ZSTD_CCtxParams_setParameter(
&state->jobParams, ZSTD_c_forceMaxWindow, value);
}
static size_t ZSTDMT_compressionJobSetDeterministicRefPrefix(void* opaque)
{
ZSTDMT_compressionJobState* const state =
(ZSTDMT_compressionJobState*)opaque;
return ZSTD_CCtxParams_setParameter(
&state->jobParams, ZSTD_c_deterministicRefPrefix, 0);
}
static size_t ZSTDMT_compressionJobBeginWithPrefix(void* opaque)
{
ZSTDMT_compressionJobState* const state =
(ZSTDMT_compressionJobState*)opaque;
ZSTDMT_jobDescription* const job = state->job;
U64 const pledgedSrcSize = job->firstJob ? job->fullFrameSize : job->src.size;
DEBUGLOG(6, "ZSTDMT_compressionJob: job %u: loading prefix of size %zu", job->jobID, job->prefix.size);
return ZSTD_compressBegin_advanced_internal(
state->cctx, job->prefix.start, job->prefix.size,
ZSTD_dct_rawContent, ZSTD_dtlm_fast, NULL, /*cdict*/
&state->jobParams, pledgedSrcSize);
}
static void ZSTDMT_compressionJobPublishFrameHeader(void* opaque)
{
ZSTDMT_compressionJobState* const state =
(ZSTDMT_compressionJobState*)opaque;
state->frameHeaderState.stage = (int*)&state->cctx->stage;
state->frameHeaderState.noDictIDFlag =
state->cctx->appliedParams.fParams.noDictIDFlag;
state->frameHeaderState.checksumFlag =
state->cctx->appliedParams.fParams.checksumFlag;
state->frameHeaderState.contentSizeFlag =
state->cctx->appliedParams.fParams.contentSizeFlag;
state->frameHeaderState.format = (int)state->cctx->appliedParams.format;
state->frameHeaderState.windowLog =
state->cctx->appliedParams.cParams.windowLog;
state->frameHeaderState.pledgedSrcSizePlusOne =
state->cctx->pledgedSrcSizePlusOne;
state->frameHeaderState.dictID = state->cctx->dictID;
state->frameHeaderState.repCodes = state->cctx->blockState.prevCBlock == NULL
? NULL : state->cctx->blockState.prevCBlock->rep;
}
static ZSTDMT_chunkProcessResult ZSTDMT_compressionJobCompress(
void* opaque, unsigned lastJob)
{
ZSTDMT_compressionJobState* const state =
(ZSTDMT_compressionJobState*)opaque;
ZSTDMT_jobDescription* const job = state->job;
ZSTDMT_RustCompressionJobProgressProjection progress;
size_t const chunkSize = 4*ZSTD_BLOCKSIZE_MAX;
assert(lastJob == job->lastJob);
if (sizeof(size_t) > sizeof(int)) assert(job->src.size < ((size_t)INT_MAX) * chunkSize); /* check overflow */
DEBUGLOG(5, "ZSTDMT_compressionJob: compress %u bytes in %zu blocks",
(U32)job->src.size, (job->src.size + (chunkSize-1)) / chunkSize);
assert(job->cSize == 0);
assert(chunkSize > 0);
assert((chunkSize & (chunkSize - 1)) == 0); /* chunkSize must be power of 2 for mask==(chunkSize-1) to work */
progress.callbackContext = job;
progress.cSize = &job->cSize;
progress.consumed = &job->consumed;
progress.lock = ZSTDMT_compressionJobProgressLock;
progress.signal = ZSTDMT_compressionJobProgressSignal;
progress.unlock = ZSTDMT_compressionJobProgressUnlock;
progress.debug = ZSTDMT_compressionJobProgressDebug;
return ZSTDMT_rust_compressJobChunks(
state->cctx, job->src.start, job->src.size,
state->dstBuff.start, state->dstBuff.capacity, chunkSize, lastJob,
&progress, ZSTDMT_rust_compressionJobProgress);
}
static void ZSTDMT_compressionJobTrace(void* opaque)
{
ZSTDMT_compressionJobState* const state =
(ZSTDMT_compressionJobState*)opaque;
ZSTDMT_jobDescription* const job = state->job;
if (!job->firstJob) {
/* Double check that we don't have an ext-dict, because then our
* repcode invalidation doesn't work. */
assert(!ZSTD_window_hasExtDict(state->cctx->blockState.matchState.window));
}
ZSTD_CCtx_trace(state->cctx, 0);
}
static void ZSTDMT_compressionJobEnsureFinished(void* opaque)
{
ZSTDMT_compressionJobState* const state =
(ZSTDMT_compressionJobState*)opaque;
ZSTDMT_jobDescription* const job = state->job;
ZSTDMT_serialState_ensureFinished(job->serial, job->jobID, job->cSize);
if (job->prefix.size > 0)
DEBUGLOG(5, "Finished with prefix: %zx", (size_t)job->prefix.start);
DEBUGLOG(5, "Finished with source: %zx", (size_t)job->src.start);
}
static void ZSTDMT_compressionJobReleaseSeq(void* opaque)
{
ZSTDMT_compressionJobState* const state =
(ZSTDMT_compressionJobState*)opaque;
ZSTDMT_jobDescription* const job = state->job;
ZSTDMT_releaseSeq(job->seqPool, state->rawSeqStore);
}
static void ZSTDMT_compressionJobReleaseCCtx(void* opaque)
{
ZSTDMT_compressionJobState* const state =
(ZSTDMT_compressionJobState*)opaque;
ZSTDMT_jobDescription* const job = state->job;
ZSTDMT_releaseCCtx(job->cctxPool, state->cctx);
}
static void ZSTDMT_compressionJobValidateConsumed(void* opaque, size_t srcSize)
{
ZSTDMT_jobDescription* const job = (ZSTDMT_jobDescription*)opaque;
assert(srcSize == job->src.size);
}
/* ZSTDMT_compressionJob() is a POOL_function type. Rust owns the stage
* ordering; these callbacks retain the private job and codec operations. */
static void ZSTDMT_compressionJob(void* jobDescription)
{
ZSTDMT_jobDescription* const job = (ZSTDMT_jobDescription*)jobDescription;
ZSTDMT_compressionJobState state;
ZSTDMT_RustCompressionJobSequenceState sequenceState;
ZSTDMT_RustCompressionJobFinishPublicationProjection publication;
ZSTDMT_RustCompressionJobFinishProjection finishProjection;
ZSTDMT_RustCompressionJobProjection projection;
ZSTD_memset(&state, 0, sizeof(state));
state.job = job;
state.jobParams = job->params; /* do not modify job->params ! copy it, modify the copy */
state.dstBuff = job->dstBuff;
sequenceState = (ZSTDMT_RustCompressionJobSequenceState){
&state.cctx,
(ZSTDMT_RustRawSeqStore*)&state.rawSeqStore,
job->serial->params.ldmParams.enableLdm
};
projection = (ZSTDMT_RustCompressionJobProjection){
job->firstJob,
job->lastJob,
&state.frameHeaderState,
&sequenceState
};
publication = (ZSTDMT_RustCompressionJobFinishPublicationProjection){
job,
&job->cSize,
&job->consumed,
job->src.size,
ZSTDMT_compressionJobProgressLock,
ZSTDMT_compressionJobProgressSignal,
ZSTDMT_compressionJobProgressUnlock,
ZSTDMT_compressionJobValidateConsumed
};
finishProjection = (ZSTDMT_RustCompressionJobFinishProjection){
&state,
job->src.size,
ZSTDMT_compressionJobEnsureFinished,
publication,
ZSTDMT_compressionJobReleaseSeq,
ZSTDMT_compressionJobReleaseCCtx
};
ZSTDMT_rust_compressionJob(
&projection, &finishProjection, &state,
ZSTDMT_compressionJobAcquireResources,
ZSTDMT_compressionJobPrepareParameters,
ZSTDMT_compressionJobGenerateSequences,
ZSTDMT_compressionJobBegin,
ZSTDMT_compressionJobReferenceSequences,
ZSTDMT_compressionJobCompress,
ZSTDMT_compressionJobTrace);
}
/* ------------------------------------------ */
/* ===== Multi-threaded compression ===== */
/* ------------------------------------------ */
typedef struct {
Range prefix; /* read-only non-owned prefix buffer */
Buffer buffer;
size_t filled;
} InBuff_t;
typedef struct {
BYTE* buffer; /* The round input buffer. All jobs get references
* to pieces of the buffer. ZSTDMT_tryGetInputRange()
* handles handing out job input buffers, and makes
* sure it doesn't overlap with any pieces still in use.
*/
size_t capacity; /* The capacity of buffer. */
size_t pos; /* The position of the current inBuff in the round
* buffer. Updated past the end if the inBuff once
* the inBuff is sent to the worker thread.
* pos <= capacity.
*/
} RoundBuff_t;
#define RSYNC_LENGTH 32
/* Don't create chunks smaller than the zstd block size.
* This stops us from regressing compression ratio too much,
* and ensures our output fits in ZSTD_compressBound().
*
* If this is shrunk < ZSTD_BLOCKSIZELOG_MIN then
* ZSTD_COMPRESSBOUND() will need to be updated.
*/
#define RSYNC_MIN_BLOCK_LOG ZSTD_BLOCKSIZELOG_MAX
#define RSYNC_MIN_BLOCK_SIZE (1<<RSYNC_MIN_BLOCK_LOG)
typedef struct {
U64 hash;
U64 hitMask;
U64 primePower;
} RSyncState_t;
struct ZSTDMT_CCtx_s {
POOL_ctx* factory;
ZSTDMT_jobDescription* jobs;
ZSTDMT_bufferPool* bufPool;
ZSTDMT_CCtxPool* cctxPool;
ZSTDMT_seqPool* seqPool;
ZSTD_CCtx_params params;
size_t targetSectionSize;
size_t targetPrefixSize;
int jobReady; /* 1 => one job is already prepared, but pool has shortage of workers. Don't create a new job. */
InBuff_t inBuff;
RoundBuff_t roundBuff;
SerialState serial;
RSyncState_t rsync;
unsigned jobIDMask;
unsigned doneJobID;
unsigned nextJobID;
unsigned frameEnded;
unsigned allJobsCompleted;
unsigned long long frameContentSize;
unsigned long long consumed;
unsigned long long produced;
ZSTD_customMem cMem;
ZSTD_CDict* cdictLocal;
const ZSTD_CDict* cdict;
unsigned providedFactory: 1;
};
/* Project only the scalar job state needed by Rust's read-only MT
* orchestration. The descriptor layout and its mutex remain private here. */
static void ZSTDMT_projectJob(void* opaque, unsigned jobID,
ZSTDMT_RustJobProjection* projection)
{
ZSTDMT_CCtx* const mtctx = (ZSTDMT_CCtx*)opaque;
ZSTDMT_jobDescription* const job = &mtctx->jobs[jobID];
ZSTD_pthread_mutex_lock(&job->job_mutex);
projection->consumed = job->consumed;
projection->cSize = job->cSize;
projection->srcStart = job->src.start;
projection->srcSize = job->src.size;
projection->prefixStart = job->prefix.start;
projection->prefixSize = job->prefix.size;
projection->dstFlushed = job->dstFlushed;
ZSTD_pthread_mutex_unlock(&job->job_mutex);
}
static void ZSTDMT_freeJobsTable(ZSTDMT_jobDescription* jobTable, U32 nbJobs, ZSTD_customMem cMem)
{
ZSTDMT_RustFreeJobsTableProjection const projection = {
jobTable,
nbJobs,
sizeof(*jobTable),
cMem,
ZSTDMT_job_table_destroy_sync
};
if (jobTable == NULL) return;
ZSTDMT_rust_freeJobsTable(&projection);
}
int ZSTDMT_job_table_init_sync(void* jobTable, unsigned nbJobs, size_t jobSize)
{
U32 jobNb;
int initError = 0;
BYTE* const table = (BYTE*)jobTable;
assert(jobSize == sizeof(ZSTDMT_jobDescription));
if (jobTable == NULL) return 1;
for (jobNb=0; jobNb<nbJobs; jobNb++) {
ZSTDMT_jobDescription* const job =
(ZSTDMT_jobDescription*)(table + jobNb * jobSize);
initError |= ZSTD_pthread_mutex_init(&job->job_mutex, NULL);
initError |= ZSTD_pthread_cond_init(&job->job_cond, NULL);
}
return initError;
}
void ZSTDMT_job_table_destroy_sync(void* jobTable, unsigned nbJobs, size_t jobSize)
{
U32 jobNb;
BYTE* const table = (BYTE*)jobTable;
if (jobTable == NULL) return;
assert(jobSize == sizeof(ZSTDMT_jobDescription));
for (jobNb=0; jobNb<nbJobs; jobNb++) {
ZSTDMT_jobDescription* const job =
(ZSTDMT_jobDescription*)(table + jobNb * jobSize);
ZSTD_pthread_mutex_destroy(&job->job_mutex);
ZSTD_pthread_cond_destroy(&job->job_cond);
}
}
/* ZSTDMT_allocJobsTable()
* allocate and init a job table.
* update *nbJobsPtr to next power of 2 value, as size of table */
static ZSTDMT_jobDescription* ZSTDMT_createJobsTable(U32* nbJobsPtr, ZSTD_customMem cMem)
{
return (ZSTDMT_jobDescription*) ZSTDMT_rust_createJobsTable(
nbJobsPtr, sizeof(ZSTDMT_jobDescription), cMem,
ZSTDMT_job_table_init_sync, ZSTDMT_job_table_destroy_sync);
}
static size_t ZSTDMT_expandJobsTable (ZSTDMT_CCtx* mtctx, U32 nbWorkers) {
void* jobs = mtctx->jobs;
U32 jobIDMask = mtctx->jobIDMask;
size_t const error = ZSTDMT_rust_expandJobsTable(
&jobs, &jobIDMask, nbWorkers, sizeof(ZSTDMT_jobDescription),
mtctx->cMem, ZSTDMT_job_table_init_sync, ZSTDMT_job_table_destroy_sync);
mtctx->jobs = (ZSTDMT_jobDescription*)jobs;
mtctx->jobIDMask = jobIDMask;
return error;
}
typedef struct {
ZSTDMT_CCtx* mtctx;
ZSTD_customMem cMem;
ZSTD_threadPool* pool;
} ZSTDMT_rust_createCCtx_context;
static void* ZSTDMT_rust_createCCtx_allocate(void* opaque, size_t size)
{
ZSTDMT_rust_createCCtx_context* const context =
(ZSTDMT_rust_createCCtx_context*)opaque;
context->mtctx = (ZSTDMT_CCtx*)ZSTD_customCalloc(size, context->cMem);
return context->mtctx;
}
static size_t ZSTDMT_rust_createCCtx_setWorkers(void* opaque, unsigned nbWorkers)
{
ZSTDMT_rust_createCCtx_context* const context =
(ZSTDMT_rust_createCCtx_context*)opaque;
return ZSTD_CCtxParams_setParameter(
&context->mtctx->params, ZSTD_c_nbWorkers, (int)nbWorkers);
}
static void ZSTDMT_rust_createCCtx_setInitialState(void* opaque)
{
ZSTDMT_rust_createCCtx_context* const context =
(ZSTDMT_rust_createCCtx_context*)opaque;
context->mtctx->cMem = context->cMem;
context->mtctx->allJobsCompleted = 1;
}
static void* ZSTDMT_rust_createCCtx_factory(void* opaque, unsigned nbWorkers)
{
ZSTDMT_rust_createCCtx_context* const context =
(ZSTDMT_rust_createCCtx_context*)opaque;
if (context->pool != NULL) {
context->mtctx->factory = context->pool;
context->mtctx->providedFactory = 1;
} else {
context->mtctx->factory = POOL_create_advanced(nbWorkers, 0, context->cMem);
context->mtctx->providedFactory = 0;
}
return context->mtctx->factory;
}
static void* ZSTDMT_rust_createCCtx_jobs(void* opaque, unsigned* nbJobs)
{
ZSTDMT_rust_createCCtx_context* const context =
(ZSTDMT_rust_createCCtx_context*)opaque;
context->mtctx->jobs = ZSTDMT_createJobsTable((U32*)nbJobs, context->cMem);
if (context->mtctx->jobs != NULL)
context->mtctx->jobIDMask = *nbJobs - 1;
return context->mtctx->jobs;
}
static void* ZSTDMT_rust_createCCtx_bufferPool(void* opaque, unsigned nbWorkers)
{
ZSTDMT_rust_createCCtx_context* const context =
(ZSTDMT_rust_createCCtx_context*)opaque;
context->mtctx->bufPool = ZSTDMT_createBufferPool(
BUF_POOL_MAX_NB_BUFFERS(nbWorkers), context->cMem);
return context->mtctx->bufPool;
}
static void* ZSTDMT_rust_createCCtx_cctxPool(void* opaque, unsigned nbWorkers)
{
ZSTDMT_rust_createCCtx_context* const context =
(ZSTDMT_rust_createCCtx_context*)opaque;
context->mtctx->cctxPool = ZSTDMT_createCCtxPool(nbWorkers, context->cMem);
return context->mtctx->cctxPool;
}
static void* ZSTDMT_rust_createCCtx_seqPool(void* opaque, unsigned nbWorkers)
{
ZSTDMT_rust_createCCtx_context* const context =
(ZSTDMT_rust_createCCtx_context*)opaque;
context->mtctx->seqPool = ZSTDMT_createSeqPool(nbWorkers, context->cMem);
return context->mtctx->seqPool;
}
static int ZSTDMT_rust_createCCtx_initSerial(void* opaque)
{
ZSTDMT_rust_createCCtx_context* const context =
(ZSTDMT_rust_createCCtx_context*)opaque;
return ZSTDMT_serialState_init(&context->mtctx->serial);
}
static void ZSTDMT_rust_createCCtx_free(void* opaque)
{
ZSTDMT_rust_createCCtx_context* const context =
(ZSTDMT_rust_createCCtx_context*)opaque;
if (context->mtctx != NULL) {
ZSTDMT_freeCCtx(context->mtctx);
context->mtctx = NULL;
}
}
MEM_STATIC ZSTDMT_CCtx* ZSTDMT_createCCtx_advanced_internal(unsigned nbWorkers, ZSTD_customMem cMem, ZSTD_threadPool* pool)
{
ZSTDMT_rust_createCCtx_context context = { NULL, cMem, pool };
ZSTDMT_RustCreateCCtxProjection const projection = {
&context,
nbWorkers,
ZSTDMT_NBWORKERS_MAX,
sizeof(ZSTDMT_CCtx),
cMem
};
DEBUGLOG(3, "ZSTDMT_createCCtx_advanced (nbWorkers = %u)", nbWorkers);
return (ZSTDMT_CCtx*)ZSTDMT_rust_createCCtx(
&projection,
ZSTDMT_rust_createCCtx_allocate,
ZSTDMT_rust_createCCtx_setWorkers,
ZSTDMT_rust_createCCtx_setInitialState,
ZSTDMT_rust_createCCtx_factory,
ZSTDMT_rust_createCCtx_jobs,
ZSTDMT_rust_createCCtx_bufferPool,
ZSTDMT_rust_createCCtx_cctxPool,
ZSTDMT_rust_createCCtx_seqPool,
ZSTDMT_rust_createCCtx_initSerial,
ZSTDMT_rust_createCCtx_free);
}
ZSTDMT_CCtx* ZSTDMT_createCCtx_advanced(unsigned nbWorkers, ZSTD_customMem cMem, ZSTD_threadPool* pool)
{
#ifdef ZSTD_MULTITHREAD
return ZSTDMT_createCCtx_advanced_internal(nbWorkers, cMem, pool);
#else
(void)nbWorkers;
(void)cMem;
(void)pool;
return NULL;
#endif
}
static void ZSTDMT_releaseJobResource(void* opaque, unsigned jobID)
{
ZSTDMT_CCtx* const mtctx = (ZSTDMT_CCtx*)opaque;
/* Copy the mutex/cond out */
ZSTD_pthread_mutex_t const mutex = mtctx->jobs[jobID].job_mutex;
ZSTD_pthread_cond_t const cond = mtctx->jobs[jobID].job_cond;
DEBUGLOG(4, "job%02u: release dst address %08X", jobID, (U32)(size_t)mtctx->jobs[jobID].dstBuff.start);
ZSTDMT_releaseBuffer(mtctx->bufPool, mtctx->jobs[jobID].dstBuff);
/* Clear the job description, but keep the mutex/cond */
ZSTD_memset(&mtctx->jobs[jobID], 0, sizeof(mtctx->jobs[jobID]));
mtctx->jobs[jobID].job_mutex = mutex;
mtctx->jobs[jobID].job_cond = cond;
}
/* ZSTDMT_releaseAllJobResources() :
* note : ensure all workers are killed first ! */
static void ZSTDMT_releaseAllJobResources(ZSTDMT_CCtx* mtctx)
{
DEBUGLOG(3, "ZSTDMT_releaseAllJobResources");
ZSTDMT_rust_releaseAllJobResources(
mtctx->jobIDMask, mtctx, ZSTDMT_releaseJobResource);
mtctx->inBuff.buffer = g_nullBuffer;
mtctx->inBuff.filled = 0;
mtctx->allJobsCompleted = 1;
}
static void ZSTDMT_waitForJobComplete(
void* opaque, unsigned jobID, unsigned doneJobID)
{
ZSTDMT_CCtx* const mtctx = (ZSTDMT_CCtx*)opaque;
ZSTDMT_jobDescription* const job = &mtctx->jobs[jobID];
(void)doneJobID;
ZSTD_PTHREAD_MUTEX_LOCK(&job->job_mutex);
while (job->consumed < job->src.size) {
DEBUGLOG(4, "waiting for jobCompleted signal from job %u", doneJobID);
ZSTD_pthread_cond_wait(&job->job_cond, &job->job_mutex);
}
ZSTD_pthread_mutex_unlock(&job->job_mutex);
}
static void ZSTDMT_waitForAllJobsCompleted(ZSTDMT_CCtx* mtctx)
{
DEBUGLOG(4, "ZSTDMT_waitForAllJobsCompleted");
mtctx->doneJobID = ZSTDMT_rust_waitForAllJobsCompleted(
mtctx->doneJobID, mtctx->nextJobID, mtctx->jobIDMask,
mtctx, ZSTDMT_waitForJobComplete);
}
static void ZSTDMT_rust_freeCCtxFactory(void* opaque)
{
ZSTDMT_CCtx* const mtctx = (ZSTDMT_CCtx*)opaque;
POOL_free(mtctx->factory); /* stop and free worker threads */
}
static void ZSTDMT_rust_freeCCtxReleaseJobResources(void* opaque)
{
ZSTDMT_releaseAllJobResources((ZSTDMT_CCtx*)opaque);
}
static void ZSTDMT_rust_freeCCtxJobs(void* opaque)
{
ZSTDMT_CCtx* const mtctx = (ZSTDMT_CCtx*)opaque;
ZSTDMT_freeJobsTable(mtctx->jobs, mtctx->jobIDMask+1, mtctx->cMem);
}
static void ZSTDMT_rust_freeCCtxBufferPool(void* opaque)
{
ZSTDMT_CCtx* const mtctx = (ZSTDMT_CCtx*)opaque;
ZSTDMT_freeBufferPool(mtctx->bufPool);
}
static void ZSTDMT_rust_freeCCtxPool(void* opaque)
{
ZSTDMT_CCtx* const mtctx = (ZSTDMT_CCtx*)opaque;
ZSTDMT_freeCCtxPool(mtctx->cctxPool);
}
static void ZSTDMT_rust_freeCCtxSeqPool(void* opaque)
{
ZSTDMT_CCtx* const mtctx = (ZSTDMT_CCtx*)opaque;
ZSTDMT_freeSeqPool(mtctx->seqPool);
}
static void ZSTDMT_rust_freeCCtxSerialState(void* opaque)
{
ZSTDMT_CCtx* const mtctx = (ZSTDMT_CCtx*)opaque;
ZSTDMT_serialState_free(&mtctx->serial);
}
static void ZSTDMT_rust_freeCCtxCDict(void* opaque)
{
ZSTDMT_CCtx* const mtctx = (ZSTDMT_CCtx*)opaque;
ZSTD_freeCDict(mtctx->cdictLocal);
}
static void ZSTDMT_rust_freeCCtxRoundBuffer(void* opaque)
{
ZSTDMT_CCtx* const mtctx = (ZSTDMT_CCtx*)opaque;
ZSTD_customFree(mtctx->roundBuff.buffer, mtctx->cMem);
}
static void ZSTDMT_rust_freeCCtxContext(void* opaque)
{
ZSTDMT_CCtx* const mtctx = (ZSTDMT_CCtx*)opaque;
ZSTD_customFree(mtctx, mtctx->cMem);
}
size_t ZSTDMT_freeCCtx(ZSTDMT_CCtx* mtctx)
{
ZSTDMT_RustFreeCCtxState const state = {
mtctx,
mtctx != NULL && mtctx->providedFactory,
mtctx != NULL && mtctx->roundBuff.buffer != NULL,
ZSTDMT_rust_freeCCtxFactory,
ZSTDMT_rust_freeCCtxReleaseJobResources,
ZSTDMT_rust_freeCCtxJobs,
ZSTDMT_rust_freeCCtxBufferPool,
ZSTDMT_rust_freeCCtxPool,
ZSTDMT_rust_freeCCtxSeqPool,
ZSTDMT_rust_freeCCtxSerialState,
ZSTDMT_rust_freeCCtxCDict,
ZSTDMT_rust_freeCCtxRoundBuffer,
ZSTDMT_rust_freeCCtxContext
};
return ZSTDMT_rust_freeCCtx(mtctx == NULL ? NULL : &state);
}
size_t ZSTDMT_sizeof_CCtx(ZSTDMT_CCtx* mtctx)
{
size_t mtctxSize;
size_t factorySize;
size_t bufferPoolSize;
size_t jobsSize;
size_t cctxPoolSize;
size_t seqPoolSize;
size_t cdictSize;
size_t roundBuffSize;
if (mtctx == NULL) return 0; /* supports sizeof NULL */
mtctxSize = sizeof(*mtctx);
factorySize = POOL_sizeof(mtctx->factory);
bufferPoolSize = ZSTDMT_sizeof_bufferPool(mtctx->bufPool);
jobsSize = (mtctx->jobIDMask+1) * sizeof(ZSTDMT_jobDescription);
cctxPoolSize = ZSTDMT_sizeof_CCtxPool(mtctx->cctxPool);
seqPoolSize = ZSTDMT_sizeof_seqPool(mtctx->seqPool);
cdictSize = ZSTD_sizeof_CDict(mtctx->cdictLocal);
roundBuffSize = mtctx->roundBuff.capacity;
return ZSTDMT_rust_sizeofCCtx(mtctxSize, factorySize, bufferPoolSize,
jobsSize, cctxPoolSize, seqPoolSize,
cdictSize, roundBuffSize);
}
static size_t ZSTDMT_rust_resizeFactory(void* opaque, unsigned nbWorkers)
{
ZSTDMT_CCtx* const mtctx = (ZSTDMT_CCtx*)opaque;
return POOL_resize(mtctx->factory, nbWorkers) ? ERROR(memory_allocation) : 0;
}
static size_t ZSTDMT_rust_resizeJobs(void* opaque, unsigned nbWorkers)
{
return ZSTDMT_expandJobsTable((ZSTDMT_CCtx*)opaque, nbWorkers);
}
static void* ZSTDMT_rust_resizeBufferPool(void* opaque, unsigned nbWorkers)
{
ZSTDMT_CCtx* const mtctx = (ZSTDMT_CCtx*)opaque;
mtctx->bufPool = ZSTDMT_expandBufferPool(
mtctx->bufPool, BUF_POOL_MAX_NB_BUFFERS(nbWorkers));
return mtctx->bufPool;
}
static void* ZSTDMT_rust_resizeCCtxPool(void* opaque, unsigned nbWorkers)
{
ZSTDMT_CCtx* const mtctx = (ZSTDMT_CCtx*)opaque;
mtctx->cctxPool = ZSTDMT_expandCCtxPool(mtctx->cctxPool, nbWorkers);
return mtctx->cctxPool;
}
static void* ZSTDMT_rust_resizeSeqPool(void* opaque, unsigned nbWorkers)
{
ZSTDMT_CCtx* const mtctx = (ZSTDMT_CCtx*)opaque;
mtctx->seqPool = ZSTDMT_expandSeqPool(mtctx->seqPool, nbWorkers);
return mtctx->seqPool;
}
static size_t ZSTDMT_rust_resizeSetNbWorkers(void* opaque, unsigned nbWorkers)
{
ZSTDMT_CCtx* const mtctx = (ZSTDMT_CCtx*)opaque;
(void)ZSTD_CCtxParams_setParameter(&mtctx->params, ZSTD_c_nbWorkers, (int)nbWorkers);
return 0;
}
/* ZSTDMT_resize() :
* @return : error code if fails, 0 on success */
static size_t ZSTDMT_resize(ZSTDMT_CCtx* mtctx, unsigned nbWorkers)
{
ZSTDMT_RustResizeProjection const projection = { mtctx, nbWorkers };
return ZSTDMT_rust_resize(
&projection,
ZSTDMT_rust_resizeFactory,
ZSTDMT_rust_resizeJobs,
ZSTDMT_rust_resizeBufferPool,
ZSTDMT_rust_resizeCCtxPool,
ZSTDMT_rust_resizeSeqPool,
ZSTDMT_rust_resizeSetNbWorkers);
}
/*! ZSTDMT_updateCParams_whileCompressing() :
* Updates a selected set of compression parameters, remaining compatible with currently active frame.
* New parameters will be applied to next compression job. */
void ZSTDMT_updateCParams_whileCompressing(ZSTDMT_CCtx* mtctx, const ZSTD_CCtx_params* cctxParams)
{
U32 const saved_wlog = mtctx->params.cParams.windowLog; /* Do not modify windowLog while compressing */
DEBUGLOG(5, "ZSTDMT_updateCParams_whileCompressing (level:%i)",
cctxParams->compressionLevel);
{ ZSTDMT_RustCParamsUpdateProjection const projection = {
cctxParams->compressionLevel,
cctxParams->srcSizeHint,
ZSTD_CONTENTSIZE_UNKNOWN,
0,
ZSTD_cpm_noAttachDict,
cctxParams->ldmParams.enableLdm,
ZSTD_LDM_DEFAULT_WINDOW_LOG,
cctxParams->cParams,
cctxParams->useRowMatchFinder,
ZSTD_getCParamsExclusionMask(),
saved_wlog
};
ZSTDMT_RustCParamsUpdateResult const result =
ZSTDMT_rust_updateCParamsWhileCompressing(projection);
mtctx->params.compressionLevel = result.compressionLevel;
mtctx->params.cParams = result.cParams;
}
}
/* ZSTDMT_getFrameProgression():
* tells how much data has been consumed (input) and produced (output) for current frame.
* able to count progression inside worker threads.
* Note : mutex will be acquired during statistics collection inside workers. */
ZSTD_frameProgression ZSTDMT_getFrameProgression(ZSTDMT_CCtx* mtctx)
{
ZSTD_frameProgression const fps = ZSTDMT_rust_frameProgressionWithJobs(
mtctx->consumed, mtctx->inBuff.filled, mtctx->produced,
mtctx->nextJobID, mtctx->doneJobID, mtctx->nextJobID,
mtctx->jobReady, mtctx->jobIDMask, mtctx,
ZSTDMT_projectJob);
DEBUGLOG(5, "ZSTDMT_getFrameProgression");
return fps;
}
size_t ZSTDMT_toFlushNow(ZSTDMT_CCtx* mtctx)
{
assert(mtctx->doneJobID <= mtctx->nextJobID);
return ZSTDMT_rust_toFlushNow(mtctx->doneJobID, mtctx->nextJobID,
mtctx->jobIDMask, mtctx,
ZSTDMT_projectJob);
}
/* ------------------------------------------ */
/* ===== Multi-threaded compression ===== */
/* ------------------------------------------ */
typedef struct {
ZSTDMT_CCtx* mtctx;
ZSTD_CCtx_params params;
const void* dict;
size_t dictSize;
ZSTD_dictContentType_e dictContentType;
const ZSTD_CDict* cdict;
unsigned long long pledgedSrcSize;
} ZSTDMT_initCStreamState;
static size_t ZSTDMT_initCStreamResize(void* opaque, unsigned nbWorkers)
{
ZSTDMT_initCStreamState* const state = (ZSTDMT_initCStreamState*)opaque;
return ZSTDMT_resize(state->mtctx, nbWorkers);
}
static void ZSTDMT_initCStreamWaitForAllJobs(void* opaque)
{
ZSTDMT_initCStreamState* const state = (ZSTDMT_initCStreamState*)opaque;
ZSTDMT_waitForAllJobsCompleted(state->mtctx);
}
static void ZSTDMT_initCStreamReleaseAllJobResources(void* opaque)
{
ZSTDMT_initCStreamState* const state = (ZSTDMT_initCStreamState*)opaque;
ZSTDMT_releaseAllJobResources(state->mtctx);
}
static void ZSTDMT_initCStreamApplyParameters(void* opaque, size_t jobSize)
{
ZSTDMT_initCStreamState* const state = (ZSTDMT_initCStreamState*)opaque;
state->params.jobSize = jobSize;
state->mtctx->params = state->params;
state->mtctx->frameContentSize = state->pledgedSrcSize;
}
static void ZSTDMT_initCStreamReleaseLocalCDict(void* opaque)
{
ZSTDMT_initCStreamState* const state = (ZSTDMT_initCStreamState*)opaque;
ZSTD_freeCDict(state->mtctx->cdictLocal);
}
static size_t ZSTDMT_initCStreamCreateCopiedCDict(void* opaque)
{
ZSTDMT_initCStreamState* const state = (ZSTDMT_initCStreamState*)opaque;
ZSTDMT_CCtx* const mtctx = state->mtctx;
mtctx->cdictLocal = ZSTD_createCDict_advanced(
state->dict, state->dictSize, ZSTD_dlm_byCopy,
state->dictContentType, state->params.cParams, mtctx->cMem);
mtctx->cdict = mtctx->cdictLocal;
return mtctx->cdictLocal == NULL ? ERROR(memory_allocation) : 0;
}
static void ZSTDMT_initCStreamAttachBorrowedCDict(void* opaque)
{
ZSTDMT_initCStreamState* const state = (ZSTDMT_initCStreamState*)opaque;
state->mtctx->cdictLocal = NULL;
state->mtctx->cdict = state->cdict;
}
static size_t ZSTDMT_initCStreamPrepareDictionary(void* opaque)
{
ZSTDMT_initCStreamState* const state = (ZSTDMT_initCStreamState*)opaque;
ZSTDMT_RustDictionaryProjection const projection = {
state->dict != NULL,
state->dictContentType == ZSTD_dct_rawContent
};
return ZSTDMT_rust_prepareCStreamDictionary(
&projection, state,
ZSTDMT_initCStreamReleaseLocalCDict,
ZSTDMT_initCStreamCreateCopiedCDict,
ZSTDMT_initCStreamAttachBorrowedCDict);
}
static void ZSTDMT_initCStreamSetTargetPrefixSize(void* opaque, size_t size)
{
ZSTDMT_initCStreamState* const state = (ZSTDMT_initCStreamState*)opaque;
state->mtctx->targetPrefixSize = size;
DEBUGLOG(4, "overlapLog=%i => %u KB", state->params.overlapLog, (U32)(size >> 10));
}
static void ZSTDMT_initCStreamSetTargetSectionSize(void* opaque, size_t size)
{
ZSTDMT_initCStreamState* const state = (ZSTDMT_initCStreamState*)opaque;
state->mtctx->targetSectionSize = size;
}
static void ZSTDMT_initCStreamSetRsync(void* opaque, U64 hitMask, U64 primePower)
{
ZSTDMT_initCStreamState* const state = (ZSTDMT_initCStreamState*)opaque;
state->mtctx->rsync.hash = 0;
state->mtctx->rsync.hitMask = hitMask;
state->mtctx->rsync.primePower = primePower;
DEBUGLOG(4, "rsyncLog = %u", ZSTD_highbit32((U32)(hitMask + 1)));
}
static void ZSTDMT_initCStreamSetBufferSize(void* opaque, size_t size)
{
ZSTDMT_initCStreamState* const state = (ZSTDMT_initCStreamState*)opaque;
DEBUGLOG(4, "Job Size : %u KB (note : set to %u)",
(U32)(state->mtctx->targetSectionSize >> 10),
(U32)state->params.jobSize);
DEBUGLOG(4, "inBuff Size : %u KB", (U32)(state->mtctx->targetSectionSize >> 10));
ZSTDMT_setBufferSize(state->mtctx->bufPool, size);
}
static size_t ZSTDMT_initCStreamResizeRoundBuffer(void* opaque, size_t capacity)
{
ZSTDMT_initCStreamState* const state = (ZSTDMT_initCStreamState*)opaque;
ZSTDMT_CCtx* const mtctx = state->mtctx;
if (mtctx->roundBuff.capacity < capacity) {
if (mtctx->roundBuff.buffer)
ZSTD_customFree(mtctx->roundBuff.buffer, mtctx->cMem);
mtctx->roundBuff.buffer = (BYTE*)ZSTD_customMalloc(capacity, mtctx->cMem);
if (mtctx->roundBuff.buffer == NULL) {
mtctx->roundBuff.capacity = 0;
return ERROR(memory_allocation);
}
mtctx->roundBuff.capacity = capacity;
}
return 0;
}
static void ZSTDMT_initCStreamResetRoundBuffer(void* opaque)
{
ZSTDMT_initCStreamState* const state = (ZSTDMT_initCStreamState*)opaque;
state->mtctx->roundBuff.pos = 0;
}
static void ZSTDMT_initCStreamResetInputBuffer(void* opaque)
{
ZSTDMT_initCStreamState* const state = (ZSTDMT_initCStreamState*)opaque;
state->mtctx->inBuff.buffer = g_nullBuffer;
state->mtctx->inBuff.filled = 0;
state->mtctx->inBuff.prefix = kNullRange;
}
static void ZSTDMT_initCStreamResetJobIDs(void* opaque)
{
ZSTDMT_initCStreamState* const state = (ZSTDMT_initCStreamState*)opaque;
state->mtctx->doneJobID = 0;
state->mtctx->nextJobID = 0;
}
static void ZSTDMT_initCStreamResetFrameFlags(void* opaque)
{
ZSTDMT_initCStreamState* const state = (ZSTDMT_initCStreamState*)opaque;
state->mtctx->frameEnded = 0;
state->mtctx->allJobsCompleted = 0;
}
static void ZSTDMT_initCStreamResetProgress(void* opaque)
{
ZSTDMT_initCStreamState* const state = (ZSTDMT_initCStreamState*)opaque;
state->mtctx->consumed = 0;
state->mtctx->produced = 0;
}
static void ZSTDMT_initCStreamResetStream(void* opaque)
{
ZSTDMT_initCStreamState* const state = (ZSTDMT_initCStreamState*)opaque;
ZSTDMT_CCtx* const mtctx = state->mtctx;
ZSTDMT_RustResetStreamState const resetState = {
state,
ZSTDMT_initCStreamResetRoundBuffer,
ZSTDMT_initCStreamResetInputBuffer,
ZSTDMT_initCStreamResetJobIDs,
ZSTDMT_initCStreamResetFrameFlags,
ZSTDMT_initCStreamResetProgress
};
DEBUGLOG(4, "roundBuff capacity : %u KB", (U32)(mtctx->roundBuff.capacity >> 10));
ZSTDMT_rust_resetStream(&resetState);
}
static void ZSTDMT_initCStreamClearDictionary(void* opaque)
{
ZSTDMT_initCStreamState* const state = (ZSTDMT_initCStreamState*)opaque;
ZSTDMT_CCtx* const mtctx = state->mtctx;
ZSTD_freeCDict(mtctx->cdictLocal);
mtctx->cdictLocal = NULL;
mtctx->cdict = NULL;
}
static void ZSTDMT_initCStreamSetRawPrefix(void* opaque)
{
ZSTDMT_initCStreamState* const state = (ZSTDMT_initCStreamState*)opaque;
state->mtctx->inBuff.prefix.start = (const BYTE*)state->dict;
state->mtctx->inBuff.prefix.size = state->dictSize;
}
static size_t ZSTDMT_initCStreamCreateReferencedCDict(void* opaque)
{
ZSTDMT_initCStreamState* const state = (ZSTDMT_initCStreamState*)opaque;
ZSTDMT_CCtx* const mtctx = state->mtctx;
/* note : a loadPrefix becomes an internal CDict */
mtctx->cdictLocal = ZSTD_createCDict_advanced(
state->dict, state->dictSize, ZSTD_dlm_byRef,
state->dictContentType, state->params.cParams, mtctx->cMem);
mtctx->cdict = mtctx->cdictLocal;
return mtctx->cdictLocal == NULL ? ERROR(memory_allocation) : 0;
}
static size_t ZSTDMT_initCStreamUpdateDictionary(void* opaque)
{
ZSTDMT_initCStreamState* const state = (ZSTDMT_initCStreamState*)opaque;
ZSTDMT_RustDictionaryProjection const projection = {
state->dict != NULL,
state->dictContentType == ZSTD_dct_rawContent
};
return ZSTDMT_rust_updateCStreamDictionary(
&projection, state,
ZSTDMT_initCStreamClearDictionary,
ZSTDMT_initCStreamAttachBorrowedCDict,
ZSTDMT_initCStreamSetRawPrefix,
ZSTDMT_initCStreamCreateReferencedCDict);
}
static size_t ZSTDMT_initCStreamSerialReset(void* opaque, size_t targetSectionSize)
{
ZSTDMT_initCStreamState* const state = (ZSTDMT_initCStreamState*)opaque;
return ZSTDMT_rust_initSerialResetResult(ZSTDMT_serialState_reset(
&state->mtctx->serial, state->mtctx->seqPool, state->params,
targetSectionSize, state->dict, state->dictSize,
state->dictContentType));
}
/* ====================================== */
/* ======= Streaming API ======= */
/* ====================================== */
size_t ZSTDMT_initCStream_internal(
ZSTDMT_CCtx* mtctx,
const void* dict, size_t dictSize, ZSTD_dictContentType_e dictContentType,
const ZSTD_CDict* cdict, ZSTD_CCtx_params params,
unsigned long long pledgedSrcSize)
{
ZSTDMT_initCStreamState state;
ZSTDMT_RustInitCStreamProjection projection;
DEBUGLOG(4, "ZSTDMT_initCStream_internal (pledgedSrcSize=%u, nbWorkers=%u, cctxPool=%u)",
(U32)pledgedSrcSize, params.nbWorkers, mtctx->cctxPool->totalCCtx);
/* params supposed partially fully validated at this point */
assert(!ZSTD_isError(ZSTD_checkCParams(params.cParams)));
assert(!((dict) && (cdict))); /* either dict or cdict, not both */
state = (ZSTDMT_initCStreamState){
mtctx, params, dict, dictSize, dictContentType, cdict, pledgedSrcSize
};
projection = (ZSTDMT_RustInitCStreamProjection){
(unsigned)params.nbWorkers,
(unsigned)mtctx->params.nbWorkers,
params.jobSize,
ZSTDMT_JOBSIZE_MIN,
(size_t)ZSTDMT_JOBSIZE_MAX,
params.ldmParams.enableLdm,
params.cParams.windowLog,
params.cParams.chainLog,
params.cParams.strategy,
params.overlapLog,
params.rsyncable,
mtctx->roundBuff.capacity,
mtctx->allJobsCompleted
};
return ZSTDMT_rust_initCStream(
&projection, &state,
ZSTDMT_initCStreamResize,
ZSTDMT_initCStreamWaitForAllJobs,
ZSTDMT_initCStreamReleaseAllJobResources,
ZSTDMT_initCStreamApplyParameters,
ZSTDMT_initCStreamPrepareDictionary,
ZSTDMT_initCStreamSetTargetPrefixSize,
ZSTDMT_initCStreamSetTargetSectionSize,
ZSTDMT_initCStreamSetRsync,
ZSTDMT_initCStreamSetBufferSize,
ZSTDMT_initCStreamResizeRoundBuffer,
ZSTDMT_initCStreamResetStream,
ZSTDMT_initCStreamUpdateDictionary,
ZSTDMT_initCStreamSerialReset);
}
/* ZSTDMT_writeLastEmptyBlock()
* Write a single empty block with an end-of-frame to finish a frame.
* Job must be created from streaming variant.
* This function is always successful if expected conditions are fulfilled.
*/
static void ZSTDMT_writeLastEmptyBlock(ZSTDMT_jobDescription* job)
{
ZSTDMT_RustEmptyBlockJobProjection projection;
ZSTDMT_RustEmptyBlockResult result;
assert(job->lastJob == 1);
assert(job->src.size == 0); /* last job is empty -> will be simplified into a last empty block */
assert(job->firstJob == 0); /* cannot be first job, as it also needs to create frame header */
assert(job->dstBuff.start == NULL); /* invoked from streaming variant only (otherwise, dstBuff might be user's output) */
assert(job->consumed == 0);
projection = (ZSTDMT_RustEmptyBlockJobProjection){
job->lastJob,
job->src.size,
job->firstJob,
job->dstBuff.start,
job->dstBuff.capacity,
job->consumed
};
result = ZSTDMT_rust_writeLastEmptyBlock(
&projection, job->bufPool, ZSTDMT_getBufferForRust);
job->dstBuff = (Buffer){ result.buffer.start, result.buffer.capacity };
if (job->dstBuff.start == NULL) {
assert(!result.clearSource);
job->cSize = result.cSize;
return;
}
assert(result.clearSource);
assert(job->dstBuff.capacity >= ZSTD_blockHeaderSize); /* no buffer should ever be that small */
if (result.clearSource) job->src = kNullRange;
job->cSize = result.cSize;
assert(!ZSTD_isError(job->cSize));
}
static void ZSTDMT_prepareCompressionJobDescriptor(
void* opaque, unsigned jobID,
const ZSTDMT_RustJobInitialization* initialization)
{
ZSTDMT_CCtx* const mtctx = (ZSTDMT_CCtx*)opaque;
ZSTDMT_jobDescription* const job = &mtctx->jobs[jobID];
BYTE const* const src = (const BYTE*)initialization->srcStart;
DEBUGLOG(5, "ZSTDMT_createCompressionJob: preparing job %u to compress %u bytes with %u preload ",
initialization->jobNumber, (U32)initialization->srcSize,
(U32)initialization->prefixSize);
assert(mtctx->inBuff.filled >= initialization->srcSize);
job->src = (Range){ src, initialization->srcSize };
job->prefix = (Range){
(const BYTE*)initialization->prefixStart, initialization->prefixSize
};
job->consumed = 0;
job->cSize = 0;
job->params = mtctx->params;
job->cdict = initialization->firstJob ? mtctx->cdict : NULL;
job->fullFrameSize = mtctx->frameContentSize;
job->dstBuff = g_nullBuffer;
job->cctxPool = mtctx->cctxPool;
job->bufPool = mtctx->bufPool;
job->seqPool = mtctx->seqPool;
job->serial = &mtctx->serial;
job->jobID = initialization->jobNumber;
job->firstJob = initialization->firstJob;
job->lastJob = initialization->lastJob;
job->frameChecksumNeeded = initialization->frameChecksumNeeded;
job->dstFlushed = 0;
}
static void ZSTDMT_prepareCompressionJobInputState(
void* opaque, unsigned jobID,
const ZSTDMT_RustJobInitialization* initialization)
{
ZSTDMT_CCtx* const mtctx = (ZSTDMT_CCtx*)opaque;
(void)jobID;
/* Update the round buffer position and clear the input buffer to be reset. */
mtctx->roundBuff.pos += initialization->roundBuffPosDelta;
mtctx->inBuff.buffer = g_nullBuffer;
mtctx->inBuff.filled = 0;
mtctx->inBuff.prefix = (Range){
(const BYTE*)initialization->nextPrefixStart,
initialization->nextPrefixSize
};
}
static void ZSTDMT_prepareCompressionJobSetFrameEnded(void* opaque)
{
ZSTDMT_CCtx* const mtctx = (ZSTDMT_CCtx*)opaque;
mtctx->frameEnded = 1;
}
static void ZSTDMT_prepareCompressionJobClearChecksumFlag(void* opaque)
{
ZSTDMT_CCtx* const mtctx = (ZSTDMT_CCtx*)opaque;
mtctx->params.fParams.checksumFlag = 0;
}
static void ZSTDMT_prepareCompressionJob(
void* opaque, unsigned jobID,
const ZSTDMT_RustJobInitialization* initialization)
{
ZSTDMT_rust_prepareCompressionJob(
opaque, jobID, initialization,
ZSTDMT_prepareCompressionJobDescriptor,
ZSTDMT_prepareCompressionJobInputState,
ZSTDMT_prepareCompressionJobSetFrameEnded,
ZSTDMT_prepareCompressionJobClearChecksumFlag);
}
static void ZSTDMT_writeEmptyCompressionJob(void* opaque, unsigned jobID)
{
ZSTDMT_CCtx* const mtctx = (ZSTDMT_CCtx*)opaque;
ZSTDMT_writeLastEmptyBlock(&mtctx->jobs[jobID]);
}
static int ZSTDMT_tryAddCompressionJob(void* opaque, unsigned jobID)
{
ZSTDMT_CCtx* const mtctx = (ZSTDMT_CCtx*)opaque;
return POOL_tryAdd(mtctx->factory, ZSTDMT_compressionJob, &mtctx->jobs[jobID]);
}
static ZSTDMT_RustStreamCreateJobResult ZSTDMT_createCompressionJob(
void* opaque, size_t srcSize, unsigned end)
{
ZSTDMT_CCtx* const mtctx = (ZSTDMT_CCtx*)opaque;
ZSTD_EndDirective const endOp = (ZSTD_EndDirective)end;
ZSTDMT_RustCreateJobProjection projection;
ZSTDMT_RustCreateJobResult result;
ZSTDMT_RustStreamCreateJobResult streamResult;
/* Rust fills the reusable input range in its local projection before
* calling this C-owned job-construction callback. Publish that count
* before the callback prepares a job and checks the C context. */
assert(srcSize <= mtctx->inBuff.buffer.capacity);
mtctx->inBuff.filled = srcSize;
projection = (ZSTDMT_RustCreateJobProjection){
mtctx->doneJobID,
mtctx->nextJobID,
mtctx->jobIDMask,
mtctx->jobReady,
mtctx->inBuff.buffer.start,
srcSize,
mtctx->inBuff.filled,
mtctx->inBuff.prefix.start,
mtctx->inBuff.prefix.size,
mtctx->targetPrefixSize,
(unsigned)(endOp == ZSTD_e_end),
(unsigned)mtctx->params.fParams.checksumFlag
};
result = ZSTDMT_rust_createCompressionJob(
&projection, mtctx, ZSTDMT_prepareCompressionJob,
ZSTDMT_writeEmptyCompressionJob, ZSTDMT_tryAddCompressionJob);
/* Keep the private C mutation in this callback, but let Rust decide
* whether its local inBuffFilled value may be published afterwards. */
streamResult = (ZSTDMT_RustStreamCreateJobResult){
result.returnCode,
(unsigned)(mtctx->inBuff.buffer.start != NULL)
};
if (result.action == ZSTDMT_CREATE_JOB_TABLE_FULL) {
DEBUGLOG(5, "ZSTDMT_createCompressionJob: will not create new job : table is full");
assert((mtctx->nextJobID & mtctx->jobIDMask) == (mtctx->doneJobID & mtctx->jobIDMask));
return streamResult;
}
mtctx->nextJobID = result.nextJobID;
mtctx->jobReady = result.jobReady;
if (result.action == ZSTDMT_CREATE_JOB_EMPTY) {
DEBUGLOG(5, "ZSTDMT_createCompressionJob: creating a last empty block to end frame");
assert(endOp == ZSTD_e_end); /* only possible case : need to end the frame with an empty last block */
return streamResult;
}
DEBUGLOG(5, "ZSTDMT_createCompressionJob: posting job %u : %u bytes (end:%u, jobNb == %u (mod:%u))",
result.jobNumber,
(U32)mtctx->jobs[result.jobID].src.size,
mtctx->jobs[result.jobID].lastJob,
result.jobNumber,
result.jobID);
if (result.jobReady)
DEBUGLOG(5, "ZSTDMT_createCompressionJob: no worker available for job %u", result.jobNumber);
return streamResult;
}
/* The Rust flush state machine receives only this synchronized scalar view.
* The descriptor, condition variable, serial checksum state, and buffer pool
* remain private to C. */
static void ZSTDMT_projectFlushJob(void* opaque, unsigned jobID,
unsigned blockToFlush,
ZSTDMT_RustFlushJobProjection* projection)
{
ZSTDMT_CCtx* const mtctx = (ZSTDMT_CCtx*)opaque;
ZSTDMT_jobDescription* const job = &mtctx->jobs[jobID];
ZSTD_PTHREAD_MUTEX_LOCK(&job->job_mutex);
if (blockToFlush && (mtctx->doneJobID < mtctx->nextJobID)) {
assert(job->dstFlushed <= job->cSize);
while (job->dstFlushed == job->cSize) { /* nothing to flush */
if (job->consumed == job->src.size) break;
ZSTD_pthread_cond_wait(&job->job_cond, &job->job_mutex);
}
}
*projection = (ZSTDMT_RustFlushJobProjection){
job->consumed,
job->cSize,
job->src.size,
job->dstBuff.start,
job->dstBuff.capacity,
job->dstFlushed,
job->frameChecksumNeeded
};
ZSTD_pthread_mutex_unlock(&job->job_mutex);
}
static void ZSTDMT_addFrameChecksum(void* opaque, unsigned jobID,
ZSTDMT_RustFlushJobProjection* projection)
{
ZSTDMT_CCtx* const mtctx = (ZSTDMT_CCtx*)opaque;
ZSTDMT_jobDescription* const job = &mtctx->jobs[jobID];
U32 const checksum = (U32)XXH64_digest(&mtctx->serial.xxhState);
ZSTDMT_RustFrameChecksumProjection const checksumProjection = {
job->dstBuff.start,
job->dstBuff.capacity,
job->cSize,
checksum
};
size_t const cSize = ZSTDMT_rust_writeFrameChecksum(&checksumProjection);
assert(projection->frameChecksumNeeded);
assert(projection->consumed == projection->srcSize);
assert(projection->cSize == job->cSize);
job->cSize = cSize;
projection->cSize = cSize;
if (!ZSTD_isError(cSize)) {
job->frameChecksumNeeded = 0;
projection->frameChecksumNeeded = 0;
}
}
static void ZSTDMT_updateFlushJob(void* opaque, unsigned jobID, size_t dstFlushed)
{
ZSTDMT_CCtx* const mtctx = (ZSTDMT_CCtx*)opaque;
ZSTDMT_jobDescription* const job = &mtctx->jobs[jobID];
assert(dstFlushed <= job->cSize);
job->dstFlushed = dstFlushed;
}
static void ZSTDMT_completeFlushJob(void* opaque, unsigned jobID,
size_t srcSize, size_t cSize)
{
ZSTDMT_CCtx* const mtctx = (ZSTDMT_CCtx*)opaque;
ZSTDMT_jobDescription* const job = &mtctx->jobs[jobID];
assert(jobID == (mtctx->doneJobID & mtctx->jobIDMask));
assert(job->src.size == srcSize);
assert(job->cSize == cSize);
assert(job->dstFlushed == cSize);
ZSTDMT_releaseBuffer(mtctx->bufPool, job->dstBuff);
job->dstBuff = g_nullBuffer;
job->cSize = 0; /* ensure this job slot is considered "not started" in future check */
mtctx->consumed += srcSize;
mtctx->produced += cSize;
mtctx->doneJobID++;
}
static void ZSTDMT_flushWaitForAllJobs(void* opaque)
{
ZSTDMT_CCtx* const mtctx = (ZSTDMT_CCtx*)opaque;
ZSTDMT_waitForAllJobsCompleted(mtctx);
}
static void ZSTDMT_flushReleaseAllJobResources(void* opaque)
{
ZSTDMT_CCtx* const mtctx = (ZSTDMT_CCtx*)opaque;
ZSTDMT_releaseAllJobResources(mtctx);
}
/*! ZSTDMT_flushProduced() :
* flush whatever data has been produced but not yet flushed in current job.
* move to next job if current one is fully flushed.
* `output` : `pos` will be updated with amount of data flushed .
* `blockToFlush` : if >0, the function will block and wait if there is no data available to flush .
* @return : amount of data remaining within internal buffer, 0 if no more, 1 if unknown but > 0, or an error code */
static size_t ZSTDMT_flushProduced(ZSTDMT_CCtx* mtctx, ZSTD_outBuffer* output, unsigned blockToFlush, ZSTD_EndDirective end)
{
ZSTDMT_RustFlushContextProjection const context = {
mtctx->doneJobID,
mtctx->nextJobID,
mtctx->jobIDMask,
mtctx->jobReady,
mtctx->frameEnded,
mtctx->inBuff.filled
};
ZSTDMT_RustFlushProducedResult const result = ZSTDMT_rust_flushProduced(
&context,
output->dst, output->size, output->pos,
blockToFlush, (unsigned)end, mtctx,
ZSTDMT_projectFlushJob,
ZSTDMT_addFrameChecksum,
ZSTDMT_updateFlushJob,
ZSTDMT_completeFlushJob,
ZSTDMT_flushWaitForAllJobs,
ZSTDMT_flushReleaseAllJobResources);
assert(output->size >= output->pos);
output->pos = result.outputPos;
if (result.updateAllJobsCompleted)
mtctx->allJobsCompleted = result.allJobsCompleted;
return result.result;
}
static ZSTDMT_RustStreamFlushResult ZSTDMT_streamFlushProduced(
void* opaque, void* outputDst, size_t outputSize, size_t outputPos,
unsigned blockToFlush, unsigned end)
{
ZSTD_outBuffer output = { outputDst, outputSize, outputPos };
size_t const result = ZSTDMT_flushProduced(
(ZSTDMT_CCtx*)opaque, &output, blockToFlush, (ZSTD_EndDirective)end);
return (ZSTDMT_RustStreamFlushResult){ result, output.pos };
}
/**
* Returns the range of data used by the earliest job that is not yet complete.
* If the data of the first job is broken up into two segments, we cover both
* sections.
*/
static Range ZSTDMT_getInputDataInUse(ZSTDMT_CCtx* mtctx)
{
ZSTDMT_RustInputRange const range = ZSTDMT_rust_getInputDataInUse(
mtctx->doneJobID, mtctx->nextJobID, mtctx->jobIDMask,
mtctx->roundBuff.capacity, mtctx->targetSectionSize,
mtctx, ZSTDMT_projectJob);
return (Range){ range.start, range.size };
}
int ZSTDMT_doesOverlapWindow(Buffer buffer, ZSTD_window_t window);
static void ZSTDMT_waitForLdmLock(void* opaque)
{
ZSTDMT_CCtx* const mtctx = (ZSTDMT_CCtx*)opaque;
ZSTD_PTHREAD_MUTEX_LOCK(&mtctx->serial.ldmWindowMutex);
}
static int ZSTDMT_waitForLdmOverlap(
void* opaque, void* bufferStart, size_t bufferCapacity)
{
ZSTDMT_CCtx* const mtctx = (ZSTDMT_CCtx*)opaque;
Buffer const buffer = { bufferStart, bufferCapacity };
return ZSTDMT_doesOverlapWindow(buffer, mtctx->serial.ldmWindow);
}
static void ZSTDMT_waitForLdmWait(void* opaque)
{
ZSTDMT_CCtx* const mtctx = (ZSTDMT_CCtx*)opaque;
DEBUGLOG(5, "Waiting for LDM to finish...");
ZSTD_pthread_cond_wait(&mtctx->serial.ldmWindowCond,
&mtctx->serial.ldmWindowMutex);
}
static void ZSTDMT_waitForLdmUnlock(void* opaque)
{
ZSTDMT_CCtx* const mtctx = (ZSTDMT_CCtx*)opaque;
DEBUGLOG(6, "Done waiting for LDM to finish");
ZSTD_pthread_mutex_unlock(&mtctx->serial.ldmWindowMutex);
}
static void ZSTDMT_waitForLdmComplete(ZSTDMT_CCtx* mtctx, Buffer buffer)
{
int const ldmEnabled = mtctx->params.ldmParams.enableLdm == ZSTD_ps_enable;
ZSTDMT_RustWaitForLdmState state;
if (ldmEnabled) {
DEBUGLOG(5, "ZSTDMT_waitForLdmComplete");
DEBUGLOG(5, "source [0x%zx, 0x%zx)",
(size_t)buffer.start,
(size_t)buffer.start + buffer.capacity);
}
state.callbackContext = mtctx;
state.bufferStart = buffer.start;
state.bufferCapacity = buffer.capacity;
state.ldmEnabled = ldmEnabled;
state.lock = ZSTDMT_waitForLdmLock;
state.overlaps = ZSTDMT_waitForLdmOverlap;
state.wait = ZSTDMT_waitForLdmWait;
state.unlock = ZSTDMT_waitForLdmUnlock;
ZSTDMT_rust_waitForLdmComplete(&state);
}
static void ZSTDMT_inputRangeWaitForLdm(
void* opaque, void* bufferStart, size_t bufferCapacity)
{
ZSTDMT_waitForLdmComplete((ZSTDMT_CCtx*)opaque,
(Buffer){ bufferStart, bufferCapacity });
}
static void ZSTDMT_inputRangeMovePrefix(
void* opaque, void* destination, const void* source, size_t size,
size_t roundBufferPos)
{
ZSTDMT_CCtx* const mtctx = (ZSTDMT_CCtx*)opaque;
/* ZSTD_invalidateRepCodes() doesn't work for extDict variants.
* Simply copy the prefix to the beginning in that case. */
ZSTD_memmove(destination, source, size);
mtctx->inBuff.prefix.start = (const BYTE*)destination;
mtctx->roundBuff.pos = roundBufferPos;
}
static void ZSTDMT_inputRangePublishBuffer(
void* opaque, void* bufferStart, size_t bufferCapacity)
{
ZSTDMT_CCtx* const mtctx = (ZSTDMT_CCtx*)opaque;
Buffer const buffer = { bufferStart, bufferCapacity };
DEBUGLOG(5, "Using prefix range [%zx, %zx)",
(size_t)mtctx->inBuff.prefix.start,
(size_t)mtctx->inBuff.prefix.start + mtctx->inBuff.prefix.size);
DEBUGLOG(5, "Using source range [%zx, %zx)",
(size_t)buffer.start,
(size_t)buffer.start + buffer.capacity);
mtctx->inBuff.buffer = buffer;
mtctx->inBuff.filled = 0;
assert(mtctx->roundBuff.pos + buffer.capacity <= mtctx->roundBuff.capacity);
}
/**
* Attempts to set the inBuff to the next section to fill.
* If any part of the new section is still in use we give up.
* Returns non-zero if the buffer is filled.
*/
static int ZSTDMT_tryGetInputRange(ZSTDMT_CCtx* mtctx)
{
Range const inUse = ZSTDMT_getInputDataInUse(mtctx);
ZSTDMT_RustTryGetInputRangeProjection const projection = {
mtctx->roundBuff.buffer,
mtctx->roundBuff.capacity,
mtctx->roundBuff.pos,
mtctx->inBuff.prefix.start,
mtctx->inBuff.prefix.size,
mtctx->targetSectionSize,
inUse.start,
inUse.size
};
ZSTDMT_RustTryGetInputRangeResult const result =
ZSTDMT_rust_tryGetInputRange(&projection);
DEBUGLOG(5, "ZSTDMT_tryGetInputRange");
assert(mtctx->inBuff.buffer.start == NULL);
if (!ZSTDMT_rust_commitInputRange(
&result,
mtctx->roundBuff.buffer,
mtctx->inBuff.prefix.start,
mtctx->inBuff.prefix.size,
mtctx,
ZSTDMT_inputRangeWaitForLdm,
ZSTDMT_inputRangeMovePrefix,
ZSTDMT_inputRangePublishBuffer)) {
DEBUGLOG(5, "Waiting for buffer...");
return 0;
}
return 1;
}
/**
* Searches through the input for a synchronization point. If one is found, we
* will instruct the caller to flush, and return the number of bytes to load.
* Otherwise, we will load as many bytes as possible and instruct the caller
* to continue as normal.
*/
/* Adapter callback for the C-owned reusable input range. */
static int ZSTDMT_streamTryGetInputRange(
void* opaque, ZSTDMT_RustStreamInputRangeProjection* projection)
{
ZSTDMT_CCtx* const mtctx = (ZSTDMT_CCtx*)opaque;
int const ready = ZSTDMT_tryGetInputRange(mtctx);
*projection = (ZSTDMT_RustStreamInputRangeProjection){
mtctx->inBuff.buffer.start,
mtctx->inBuff.buffer.capacity,
mtctx->inBuff.filled
};
return ready;
}
size_t ZSTDMT_nextInputSizeHint(const ZSTDMT_CCtx* mtctx)
{
return ZSTDMT_rust_nextInputSizeHint(mtctx->targetSectionSize,
mtctx->inBuff.filled);
}
/** ZSTDMT_compressStream_generic() :
* internal use only - exposed to be invoked from zstd_compress.c
* assumption : output and input are valid (pos <= size)
* @return : minimum amount of data remaining to flush, 0 if none */
size_t ZSTDMT_compressStream_generic(ZSTDMT_CCtx* mtctx,
ZSTD_outBuffer* output,
ZSTD_inBuffer* input,
ZSTD_EndDirective endOp)
{
ZSTDMT_RustCompressStreamContextProjection const context = {
mtctx->frameEnded,
(unsigned)mtctx->jobReady,
mtctx->inBuff.buffer.start,
mtctx->inBuff.buffer.capacity,
mtctx->inBuff.filled,
mtctx->targetSectionSize,
mtctx->params.rsyncable,
mtctx->rsync.primePower,
mtctx->rsync.hitMask
};
ZSTDMT_RustStreamInputProjection const inputProjection = {
input->src,
input->size,
input->pos
};
ZSTDMT_RustStreamOutputProjection const outputProjection = {
output->dst,
output->size,
output->pos
};
ZSTDMT_RustCompressStreamResult const result =
ZSTDMT_rust_compressStreamGeneric(
&context, &inputProjection, &outputProjection, (unsigned)endOp,
mtctx, ZSTDMT_streamTryGetInputRange,
ZSTDMT_createCompressionJob, ZSTDMT_streamFlushProduced);
DEBUGLOG(5, "ZSTDMT_compressStream_generic (endOp=%u, srcSize=%u)",
(U32)endOp, (U32)(input->size - input->pos));
assert(output->pos <= output->size);
assert(input->pos <= input->size);
/* Rust owns the decision to publish its local count. C retains the
* private field mutation and receives either the count or zero when the
* job callback cleared the range. */
mtctx->inBuff.filled = result.inBuffFilled;
input->pos = result.inputPos;
output->pos = result.outputPos;
DEBUGLOG(5, "end of ZSTDMT_compressStream_generic: remainingToFlush = %u", (U32)result.result);
return result.result;
}