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feat(cli): move benchmark bridge into Rust

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Move benchmark parameter normalization and dispatch into the Rust CLI archive while retaining the stable C launcher entry point. Keep compact CLI variants benchmark-free and add an explicit helpers feature for the C test generators.

Test Plan:

- cargo test --manifest-path rust/cli/Cargo.toml --no-default-features --features benchmark

- cargo test --manifest-path rust/cli/Cargo.toml --no-default-features --features helpers

- cargo clippy --manifest-path rust/cli/Cargo.toml --all-targets --no-default-features --features cli,compression,decompression,benchmark

- cargo clippy --manifest-path rust/cli/Cargo.toml --all-targets --no-default-features --features helpers

- make -B -C programs -j2 zstd zstd-small zstd-frugal

- make -B -C tests -j2 test-cli-tests

- programs/zstd -b1i1 -q
This commit is contained in:
ddidderr
2026-07-18 03:18:58 +02:00
parent 3a10d86c76
commit 96c7f3b900
6 changed files with 185 additions and 86 deletions
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programs/zstdcli.c
-56
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@@ -10,73 +10,17 @@
/* The CLI parser and control flow live in rust/src/zstd_cli.rs. Keep this
* translation unit as the stable C entry point used by program launchers. */
#include <stddef.h> /* size_t */
#define ZSTD_STATIC_LINKING_ONLY /* ZSTD_compressionParameters */
#include "../lib/zstd.h"
#ifndef ZSTD_NOBENCH
# include "benchzstd.h" /* BMK_benchFilesAdvanced, BMK_syntheticTest */
#endif
int ZSTD_rust_cli_main(int argCount, const char* const argv[]);
const char* ZSTD_rust_cli_expected_version(void);
int ZSTD_rust_cli_bench(const char* const* fileNames, unsigned nbFiles,
const char* dictFileName,
int startCLevel, int endCLevel,
const ZSTD_compressionParameters* compressionParams,
int displayLevel, unsigned nbSeconds,
size_t blockSize, int nbWorkers, int mode);
const char* ZSTD_rust_cli_expected_version(void)
{
return ZSTD_VERSION_STRING;
}
/* Benchmark bridge for the Rust CLI. Whether benchmarking exists is a C
* preprocessor property (ZSTD_NOBENCH), so the decision stays in this shim:
* the Rust frontend calls in unconditionally, and stripped program variants
* never reference benchmark symbols.
* @return the benchmark result code (>= 0), or -1 when unavailable. */
int ZSTD_rust_cli_bench(const char* const* fileNames, unsigned nbFiles,
const char* dictFileName,
int startCLevel, int endCLevel,
const ZSTD_compressionParameters* compressionParams,
int displayLevel, unsigned nbSeconds,
size_t blockSize, int nbWorkers, int mode)
{
#ifndef ZSTD_NOBENCH
BMK_advancedParams_t advancedParams = BMK_initAdvancedParams();
int startLevel = startCLevel;
int endLevel = endCLevel;
advancedParams.nbSeconds = nbSeconds;
advancedParams.blockSize = blockSize;
advancedParams.nbWorkers = nbWorkers;
advancedParams.mode = (BMK_mode_t)mode;
if (advancedParams.mode == BMK_decodeOnly) {
startLevel = 0;
endLevel = 0;
}
if (startLevel > ZSTD_maxCLevel()) startLevel = ZSTD_maxCLevel();
if (endLevel > ZSTD_maxCLevel()) endLevel = ZSTD_maxCLevel();
if (endLevel < startLevel) endLevel = startLevel;
if (nbFiles == 0) {
/* No input file: benchmark a synthetic sample (lorem generator). */
return BMK_syntheticTest(-1.0, startLevel, endLevel,
compressionParams, displayLevel,
&advancedParams);
}
return BMK_benchFilesAdvanced(fileNames, nbFiles, dictFileName,
startLevel, endLevel,
compressionParams, displayLevel,
&advancedParams);
#else
(void)fileNames; (void)nbFiles; (void)dictFileName;
(void)startCLevel; (void)endCLevel; (void)compressionParams;
(void)displayLevel; (void)nbSeconds; (void)blockSize; (void)nbWorkers;
(void)mode;
return -1;
#endif
}
int main(int argCount, const char* argv[])
{
return ZSTD_rust_cli_main(argCount, argv);