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added control of compress memory usage via build setting

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This commit is contained in:
John Safranek 2013-03-20 11:28:45 -07:00
parent 692dc09d10
commit 02581a3da2
2 changed files with 29 additions and 9 deletions
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35
ctaocrypt/src/compress.c
View File

@ -40,8 +40,28 @@
#include <zlib.h>
#define DEFLATE_DEFAULT_WINDOWBITS 15
#define DEFLATE_DEFAULT_MEMLEVEL 8
/* alloc user allocs to work with zlib */
static void* myAlloc(void* opaque, unsigned int item, unsigned int size)
{
(void)opaque;
return XMALLOC(item * size, opaque, DYNAMIC_TYPE_LIBZ);
}
static void myFree(void* opaque, void* memory)
{
(void)opaque;
XFREE(memory, opaque, DYNAMIC_TYPE_LIBZ);
}
#ifdef HAVE_MCAPI
#define DEFLATE_DEFAULT_WINDOWBITS 11
#define DEFLATE_DEFAULT_MEMLEVEL 1
#else
#define DEFLATE_DEFAULT_WINDOWBITS 15
#define DEFLATE_DEFAULT_MEMLEVEL 8
#endif
int Compress(byte* out, word32 outSz, const byte* in, word32 inSz, word32 flags)
@ -75,8 +95,8 @@ int Compress(byte* out, word32 outSz, const byte* in, word32 inSz, word32 flags)
stream.avail_out = (uInt)outSz;
if ((uLong)stream.avail_out != outSz) return COMPRESS_INIT_E;
stream.zalloc = (alloc_func)0;
stream.zfree = (free_func)0;
stream.zalloc = (alloc_func)myAlloc;
stream.zfree = (free_func)myFree;
stream.opaque = (voidpf)0;
if (deflateInit2(&stream, Z_DEFAULT_COMPRESSION, Z_DEFLATED,
@ -123,10 +143,11 @@ int DeCompress(byte* out, word32 outSz, const byte* in, word32 inSz)
stream.avail_out = (uInt)outSz;
if ((uLong)stream.avail_out != outSz) return DECOMPRESS_INIT_E;
stream.zalloc = (alloc_func)0;
stream.zfree = (free_func)0;
stream.zalloc = (alloc_func)myAlloc;
stream.zfree = (free_func)myFree;
stream.opaque = (voidpf)0;
if (inflateInit(&stream) != Z_OK)
if (inflateInit2(&stream, DEFLATE_DEFAULT_WINDOWBITS) != Z_OK)
return DECOMPRESS_INIT_E;
if (inflate(&stream, Z_FINISH) != Z_STREAM_END) {

3
ctaocrypt/test/test.c
View File

@ -3170,8 +3170,7 @@ int compress_test(void)
if (c == NULL || d == NULL)
ret = -300;
if (ret == 0 &&
(ret = Compress(c, cSz, sample_text, dSz, 0)) < 0)
if (ret == 0 && (ret = Compress(c, cSz, sample_text, dSz, 0)) < 0)
ret = -301;
if (ret > 0) {