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Added examples/Makefile

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This commit is contained in:
Yann Collet
2016-07-10 14:23:30 +02:00
parent 25c506601c
commit 677ed26aa7
5 changed files with 102 additions and 6 deletions
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39
examples/simple_compression.c
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@ -74,7 +74,23 @@ static void* loadFile_X(const char* fileName, size_t* size)
}
static void compress(const char* fname)
static void saveFile_X(const char* fileName, const void* buff, size_t buffSize)
{
FILE* const oFile = fopen_X(fileName, "wb");
size_t const wSize = fwrite(buff, 1, buffSize, oFile);
if (wSize != (size_t)buffSize) {
printf("fwrite: %s : %s \n", fileName, strerror(errno));
exit(5);
}
size_t const closeError = fclose(oFile);
if (closeError) {
printf("fclose: %s : %s \n", fileName, strerror(errno));
exit(6);
}
}
static void compress(const char* fname, const char* oname)
{
size_t fSize;
void* const fBuff = loadFile_X(fname, &fSize);
@ -87,17 +103,31 @@ static void compress(const char* fname)
exit(7);
}
saveFile_X(oname, cBuff, cSize);
/* success */
printf("%25s : %6u -> %7u \n", fname, (unsigned)fSize, (unsigned)cSize);
printf("%25s : %6u -> %7u - %s \n", fname, (unsigned)fSize, (unsigned)cSize, oname);
free(fBuff);
free(cBuff);
}
static const char* createOutFilename(const char* filename)
{
size_t const inL = strlen(filename);
size_t const outL = inL + 5;
void* outSpace = malloc_X(outL);
memset(outSpace, 0, outL);
strcat(outSpace, filename);
strcat(outSpace, ".zst");
return (const char*)outSpace;
}
int main(int argc, const char** argv)
{
const char* const exeName = argv[0];
const char* const inFilename = argv[1];
if (argc!=2) {
printf("wrong arguments\n");
@ -106,7 +136,8 @@ int main(int argc, const char** argv)
return 1;
}
compress(argv[1]);
const char* const outFilename = createOutFilename(inFilename);
compress(inFilename, outFilename);
printf("%s compressed. \n", argv[1]);
return 0;
}