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[examples] Clean up and comment the examples

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This commit is contained in:
Nick Terrell
2019-04-05 18:11:17 -07:00
parent 1dfe37fea9
commit 1d0c1707d1
11 changed files with 143 additions and 141 deletions
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19
examples/simple_compression.c
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@ -8,13 +8,11 @@
* You may select, at your option, one of the above-listed licenses.
*/
#include <stdlib.h> // malloc, free, exit
#include <stdio.h> // fprintf, perror, fopen, etc.
#include <string.h> // strlen, strcat, memset, strerror
#include <errno.h> // errno
#include <sys/stat.h> // stat
#include <stdio.h> // printf
#include <stdlib.h> // free
#include <string.h> // strlen, strcat, memset
#include <zstd.h> // presumes zstd library is installed
#include "utils.h"
#include "common.h" // Helper functions, CHECK(), and CHECK_ZSTD()
static void compress_orDie(const char* fname, const char* oname)
{
@ -23,11 +21,12 @@ static void compress_orDie(const char* fname, const char* oname)
size_t const cBuffSize = ZSTD_compressBound(fSize);
void* const cBuff = malloc_orDie(cBuffSize);
/* Compress.
* If you are doing many compressions, you may want to reuse the context.
* See the multiple_simple_compression.c example.
*/
size_t const cSize = ZSTD_compress(cBuff, cBuffSize, fBuff, fSize, 1);
if (ZSTD_isError(cSize)) {
fprintf(stderr, "error compressing %s : %s \n", fname, ZSTD_getErrorName(cSize));
exit(8);
}
CHECK_ZSTD(cSize);
saveFile_orDie(oname, cBuff, cSize);