lib/zstd
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better error handling

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This commit is contained in:
Yann Collet
2016-09-09 19:33:56 +02:00
parent 746b51de51
commit a2664649df
8 changed files with 21 additions and 17 deletions
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10
examples/dictionary_compression.c
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@ -73,12 +73,12 @@ static void saveFile_orDie(const char* fileName, const void* buff, size_t buffSi
/* createDict() :
`dictFileName` is supposed to have been created using `zstd --train` */
static ZSTD_CDict* createCDict_orDie(const char* dictFileName)
static ZSTD_CDict* createCDict_orDie(const char* dictFileName, int cLevel)
{
size_t dictSize;
printf("loading dictionary %s \n", dictFileName);
void* const dictBuffer = loadFile_orDie(dictFileName, &dictSize);
ZSTD_CDict* const cdict = ZSTD_createCDict(dictBuffer, dictSize, 3);
ZSTD_CDict* const cdict = ZSTD_createCDict(dictBuffer, dictSize, cLevel);
if (!cdict) {
fprintf(stderr, "ZSTD_createCDict error \n");
exit(7);
@ -96,6 +96,7 @@ static void compress(const char* fname, const char* oname, const ZSTD_CDict* cdi
void* const cBuff = malloc_orDie(cBuffSize);
ZSTD_CCtx* const cctx = ZSTD_createCCtx();
if (cctx==NULL) { fprintf(stderr, "ZSTD_createCCtx() error \n"); exit(10); }
size_t const cSize = ZSTD_compress_usingCDict(cctx, cBuff, cBuffSize, fBuff, fSize, cdict);
if (ZSTD_isError(cSize)) {
fprintf(stderr, "error compressing %s : %s \n", fname, ZSTD_getErrorName(cSize));
@ -107,7 +108,7 @@ static void compress(const char* fname, const char* oname, const ZSTD_CDict* cdi
/* success */
printf("%25s : %6u -> %7u - %s \n", fname, (unsigned)fSize, (unsigned)cSize, oname);
ZSTD_freeCCtx(cctx);
ZSTD_freeCCtx(cctx); /* never fails */
free(fBuff);
free(cBuff);
}
@ -127,6 +128,7 @@ static char* createOutFilename_orDie(const char* filename)
int main(int argc, const char** argv)
{
const char* const exeName = argv[0];
int const cLevel = 3;
if (argc<3) {
fprintf(stderr, "wrong arguments\n");
@ -137,7 +139,7 @@ int main(int argc, const char** argv)
/* load dictionary only once */
const char* const dictName = argv[argc-1];
ZSTD_CDict* const dictPtr = createCDict_orDie(dictName);
ZSTD_CDict* const dictPtr = createCDict_orDie(dictName, cLevel);
int u;
for (u=1; u<argc-1; u++) {