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CCtxPool starts empty, as suggested by @terrelln

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Also : make zstdmt now a target from root
This commit is contained in:
Yann Collet 2017-01-18 12:12:10 -08:00
parent a6db7a7b9b
commit 563ef8acf4
3 changed files with 13 additions and 15 deletions
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1
.gitignore vendored
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@ -15,6 +15,7 @@
# Executables
zstd
zstdmt
*.exe
*.out
*.app

5
Makefile
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@ -50,6 +50,11 @@ zstd:
@$(MAKE) -C $(PRGDIR) $@
cp $(PRGDIR)/zstd$(EXT) .
.PHONY: zstdmt
zstdmt:
@$(MAKE) -C $(PRGDIR) $@
cp $(PRGDIR)/zstd$(EXT) ./zstdmt$(EXT)
.PHONY: zlibwrapper
zlibwrapper:
$(MAKE) -C $(ZWRAPDIR) test

22
lib/compress/zstdmt_compress.c
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@ -122,8 +122,8 @@ typedef struct {
static void ZSTDMT_freeCCtxPool(ZSTDMT_CCtxPool* pool)
{
unsigned u;
for (u=0; u<pool->availCCtx; u++) /* note : availCCtx is supposed == totalCCtx; otherwise, some CCtx are still in use */
ZSTD_freeCCtx(pool->cctx[u]);
for (u=0; u<pool->totalCCtx; u++)
ZSTD_freeCCtx(pool->cctx[u]); /* note : compatible with free on NULL */
free(pool);
}
@ -131,15 +131,8 @@ static ZSTDMT_CCtxPool* ZSTDMT_createCCtxPool(unsigned nbThreads)
{
ZSTDMT_CCtxPool* const cctxPool = (ZSTDMT_CCtxPool*) calloc(1, sizeof(ZSTDMT_CCtxPool) + nbThreads*sizeof(ZSTD_CCtx*));
if (!cctxPool) return NULL;
{ unsigned threadNb;
for (threadNb=0; threadNb<nbThreads; threadNb++) {
cctxPool->cctx[threadNb] = ZSTD_createCCtx();
if (cctxPool->cctx[threadNb]==NULL) { /* failed cctx allocation : abort cctxPool creation */
cctxPool->totalCCtx = cctxPool->availCCtx = threadNb;
ZSTDMT_freeCCtxPool(cctxPool);
return NULL;
} } }
cctxPool->totalCCtx = cctxPool->availCCtx = nbThreads;
cctxPool->totalCCtx = nbThreads;
cctxPool->availCCtx = 0;
return cctxPool;
}
@ -149,17 +142,16 @@ static ZSTD_CCtx* ZSTDMT_getCCtx(ZSTDMT_CCtxPool* pool)
pool->availCCtx--;
return pool->cctx[pool->availCCtx];
}
/* note : should not be possible, since totalCCtx==nbThreads */
return ZSTD_createCCtx(); /* note : can be NULL is creation fails ! */
return ZSTD_createCCtx(); /* note : can be NULL, when creation fails ! */
}
static void ZSTDMT_releaseCCtx(ZSTDMT_CCtxPool* pool, ZSTD_CCtx* cctx)
{
if (cctx==NULL) return; /* release on NULL */
if (cctx==NULL) return; /* compatibility with release on NULL */
if (pool->availCCtx < pool->totalCCtx)
pool->cctx[pool->availCCtx++] = cctx;
else
/* note : should not be possible, since totalCCtx==nbThreads */
/* pool overflow : should not happen, since totalCCtx==nbThreads */
ZSTD_freeCCtx(cctx);
}