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Handle large input size in 32-bit mode correctly

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This commit is contained in:
Nick Terrell
2017-01-09 18:20:06 -08:00
parent c220d4c74d
commit 555e281637
1 changed files with 5 additions and 3 deletions
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lib/dictBuilder/cover.c
+5 -3
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@@ -28,7 +28,7 @@
/*-*************************************
* Constants
***************************************/
#define COVER_MAX_SAMPLES_SIZE ((U32)-1)
#define COVER_MAX_SAMPLES_SIZE (sizeof(size_t) == 8 ? ((U32)-1) : ((U32)1 GB))
/*-*************************************
* Console display
@@ -500,7 +500,9 @@ static int COVER_ctx_init(COVER_ctx_t *ctx, const void *samplesBuffer,
const size_t totalSamplesSize = COVER_sum(samplesSizes, nbSamples);
/* Checks */
if (totalSamplesSize < d ||
totalSamplesSize > (size_t)COVER_MAX_SAMPLES_SIZE) {
totalSamplesSize >= (size_t)COVER_MAX_SAMPLES_SIZE) {
DISPLAYLEVEL(1, "Total samples size is too large, maximum size is %u MB\n",
(COVER_MAX_SAMPLES_SIZE >> 20));
return 0;
}
/* Zero the context */
@@ -518,6 +520,7 @@ static int COVER_ctx_init(COVER_ctx_t *ctx, const void *samplesBuffer,
/* The offsets of each file */
ctx->offsets = (size_t *)malloc((nbSamples + 1) * sizeof(size_t));
if (!ctx->suffix || !ctx->dmerAt || !ctx->offsets) {
DISPLAYLEVEL(1, "Failed to allocate scratch buffers\n");
COVER_ctx_destroy(ctx);
return 0;
}
@@ -651,7 +654,6 @@ ZDICTLIB_API size_t COVER_trainFromBuffer(
/* Initialize context and activeDmers */
if (!COVER_ctx_init(&ctx, samplesBuffer, samplesSizes, nbSamples,
parameters.d)) {
DISPLAYLEVEL(1, "Failed to initialize context\n");
return ERROR(GENERIC);
}
if (!COVER_map_init(&activeDmers, parameters.k - parameters.d + 1)) {