diff options
Diffstat (limited to 'Modules/zlib/example.c')
| -rw-r--r-- | Modules/zlib/example.c | 90 |
1 files changed, 63 insertions, 27 deletions
diff --git a/Modules/zlib/example.c b/Modules/zlib/example.c index 604736f..138a699 100644 --- a/Modules/zlib/example.c +++ b/Modules/zlib/example.c @@ -1,5 +1,5 @@ /* example.c -- usage example of the zlib compression library - * Copyright (C) 1995-2006 Jean-loup Gailly. + * Copyright (C) 1995-2006, 2011 Jean-loup Gailly. * For conditions of distribution and use, see copyright notice in zlib.h */ @@ -26,7 +26,7 @@ } \ } -const char hello[] = "hello, hello!"; +z_const char hello[] = "hello, hello!"; /* "hello world" would be more standard, but the repeated "hello" * stresses the compression code better, sorry... */ @@ -34,10 +34,6 @@ const char hello[] = "hello, hello!"; const char dictionary[] = "hello"; uLong dictId; /* Adler32 value of the dictionary */ -void test_compress OF((Byte *compr, uLong comprLen, - Byte *uncompr, uLong uncomprLen)); -void test_gzio OF((const char *fname, - Byte *uncompr, uLong uncomprLen)); void test_deflate OF((Byte *compr, uLong comprLen)); void test_inflate OF((Byte *compr, uLong comprLen, Byte *uncompr, uLong uncomprLen)); @@ -53,6 +49,39 @@ void test_dict_inflate OF((Byte *compr, uLong comprLen, Byte *uncompr, uLong uncomprLen)); int main OF((int argc, char *argv[])); + +#ifdef Z_SOLO + +void *myalloc OF((void *, unsigned, unsigned)); +void myfree OF((void *, void *)); + +void *myalloc(q, n, m) + void *q; + unsigned n, m; +{ + q = Z_NULL; + return calloc(n, m); +} + +void myfree(void *q, void *p) +{ + q = Z_NULL; + free(p); +} + +static alloc_func zalloc = myalloc; +static free_func zfree = myfree; + +#else /* !Z_SOLO */ + +static alloc_func zalloc = (alloc_func)0; +static free_func zfree = (free_func)0; + +void test_compress OF((Byte *compr, uLong comprLen, + Byte *uncompr, uLong uncomprLen)); +void test_gzio OF((const char *fname, + Byte *uncompr, uLong uncomprLen)); + /* =========================================================================== * Test compress() and uncompress() */ @@ -163,6 +192,8 @@ void test_gzio(fname, uncompr, uncomprLen) #endif } +#endif /* Z_SOLO */ + /* =========================================================================== * Test deflate() with small buffers */ @@ -174,14 +205,14 @@ void test_deflate(compr, comprLen) int err; uLong len = (uLong)strlen(hello)+1; - c_stream.zalloc = (alloc_func)0; - c_stream.zfree = (free_func)0; + c_stream.zalloc = zalloc; + c_stream.zfree = zfree; c_stream.opaque = (voidpf)0; err = deflateInit(&c_stream, Z_DEFAULT_COMPRESSION); CHECK_ERR(err, "deflateInit"); - c_stream.next_in = (Bytef*)hello; + c_stream.next_in = (z_const unsigned char *)hello; c_stream.next_out = compr; while (c_stream.total_in != len && c_stream.total_out < comprLen) { @@ -213,8 +244,8 @@ void test_inflate(compr, comprLen, uncompr, uncomprLen) strcpy((char*)uncompr, "garbage"); - d_stream.zalloc = (alloc_func)0; - d_stream.zfree = (free_func)0; + d_stream.zalloc = zalloc; + d_stream.zfree = zfree; d_stream.opaque = (voidpf)0; d_stream.next_in = compr; @@ -252,8 +283,8 @@ void test_large_deflate(compr, comprLen, uncompr, uncomprLen) z_stream c_stream; /* compression stream */ int err; - c_stream.zalloc = (alloc_func)0; - c_stream.zfree = (free_func)0; + c_stream.zalloc = zalloc; + c_stream.zfree = zfree; c_stream.opaque = (voidpf)0; err = deflateInit(&c_stream, Z_BEST_SPEED); @@ -309,8 +340,8 @@ void test_large_inflate(compr, comprLen, uncompr, uncomprLen) strcpy((char*)uncompr, "garbage"); - d_stream.zalloc = (alloc_func)0; - d_stream.zfree = (free_func)0; + d_stream.zalloc = zalloc; + d_stream.zfree = zfree; d_stream.opaque = (voidpf)0; d_stream.next_in = compr; @@ -349,14 +380,14 @@ void test_flush(compr, comprLen) int err; uInt len = (uInt)strlen(hello)+1; - c_stream.zalloc = (alloc_func)0; - c_stream.zfree = (free_func)0; + c_stream.zalloc = zalloc; + c_stream.zfree = zfree; c_stream.opaque = (voidpf)0; err = deflateInit(&c_stream, Z_DEFAULT_COMPRESSION); CHECK_ERR(err, "deflateInit"); - c_stream.next_in = (Bytef*)hello; + c_stream.next_in = (z_const unsigned char *)hello; c_stream.next_out = compr; c_stream.avail_in = 3; c_stream.avail_out = (uInt)*comprLen; @@ -388,8 +419,8 @@ void test_sync(compr, comprLen, uncompr, uncomprLen) strcpy((char*)uncompr, "garbage"); - d_stream.zalloc = (alloc_func)0; - d_stream.zfree = (free_func)0; + d_stream.zalloc = zalloc; + d_stream.zfree = zfree; d_stream.opaque = (voidpf)0; d_stream.next_in = compr; @@ -430,22 +461,22 @@ void test_dict_deflate(compr, comprLen) z_stream c_stream; /* compression stream */ int err; - c_stream.zalloc = (alloc_func)0; - c_stream.zfree = (free_func)0; + c_stream.zalloc = zalloc; + c_stream.zfree = zfree; c_stream.opaque = (voidpf)0; err = deflateInit(&c_stream, Z_BEST_COMPRESSION); CHECK_ERR(err, "deflateInit"); err = deflateSetDictionary(&c_stream, - (const Bytef*)dictionary, sizeof(dictionary)); + (const Bytef*)dictionary, (int)sizeof(dictionary)); CHECK_ERR(err, "deflateSetDictionary"); dictId = c_stream.adler; c_stream.next_out = compr; c_stream.avail_out = (uInt)comprLen; - c_stream.next_in = (Bytef*)hello; + c_stream.next_in = (z_const unsigned char *)hello; c_stream.avail_in = (uInt)strlen(hello)+1; err = deflate(&c_stream, Z_FINISH); @@ -469,8 +500,8 @@ void test_dict_inflate(compr, comprLen, uncompr, uncomprLen) strcpy((char*)uncompr, "garbage"); - d_stream.zalloc = (alloc_func)0; - d_stream.zfree = (free_func)0; + d_stream.zalloc = zalloc; + d_stream.zfree = zfree; d_stream.opaque = (voidpf)0; d_stream.next_in = compr; @@ -491,7 +522,7 @@ void test_dict_inflate(compr, comprLen, uncompr, uncomprLen) exit(1); } err = inflateSetDictionary(&d_stream, (const Bytef*)dictionary, - sizeof(dictionary)); + (int)sizeof(dictionary)); } CHECK_ERR(err, "inflate with dict"); } @@ -540,10 +571,15 @@ int main(argc, argv) printf("out of memory\n"); exit(1); } + +#ifdef Z_SOLO + argc = strlen(argv[0]); +#else test_compress(compr, comprLen, uncompr, uncomprLen); test_gzio((argc > 1 ? argv[1] : TESTFILE), uncompr, uncomprLen); +#endif test_deflate(compr, comprLen); test_inflate(compr, comprLen, uncompr, uncomprLen); |