mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-09-21 01:00:48 +00:00
125 lines
2.9 KiB
C
125 lines
2.9 KiB
C
/* zutil.c -- target dependent utility functions for the compression library
|
|
* Copyright (C) 1995-2005, 2010, 2011, 2012 Jean-loup Gailly.
|
|
* For conditions of distribution and use, see copyright notice in zlib.h
|
|
*/
|
|
|
|
/* @(#) $Id$ */
|
|
|
|
#include "zutil.h"
|
|
#ifdef WITH_GZFILEOP
|
|
# include "gzguts.h"
|
|
#endif
|
|
|
|
const char * const z_errmsg[10] = {
|
|
"need dictionary", /* Z_NEED_DICT 2 */
|
|
"stream end", /* Z_STREAM_END 1 */
|
|
"", /* Z_OK 0 */
|
|
"file error", /* Z_ERRNO (-1) */
|
|
"stream error", /* Z_STREAM_ERROR (-2) */
|
|
"data error", /* Z_DATA_ERROR (-3) */
|
|
"insufficient memory", /* Z_MEM_ERROR (-4) */
|
|
"buffer error", /* Z_BUF_ERROR (-5) */
|
|
"incompatible version",/* Z_VERSION_ERROR (-6) */
|
|
""};
|
|
|
|
const char zlibng_string[] =
|
|
" zlib-ng 1.9.9 forked from zlib 1.2.8 ";
|
|
|
|
const char * ZEXPORT zlibVersion(void)
|
|
{
|
|
return ZLIB_VERSION;
|
|
}
|
|
|
|
unsigned long ZEXPORT zlibCompileFlags(void)
|
|
{
|
|
unsigned long flags;
|
|
|
|
flags = 0;
|
|
switch ((int)(sizeof(unsigned int))) {
|
|
case 2: break;
|
|
case 4: flags += 1; break;
|
|
case 8: flags += 2; break;
|
|
default: flags += 3;
|
|
}
|
|
switch ((int)(sizeof(unsigned long))) {
|
|
case 2: break;
|
|
case 4: flags += 1 << 2; break;
|
|
case 8: flags += 2 << 2; break;
|
|
default: flags += 3 << 2;
|
|
}
|
|
switch ((int)(sizeof(void *))) {
|
|
case 2: break;
|
|
case 4: flags += 1 << 4; break;
|
|
case 8: flags += 2 << 4; break;
|
|
default: flags += 3 << 4;
|
|
}
|
|
switch ((int)(sizeof(z_off_t))) {
|
|
case 2: break;
|
|
case 4: flags += 1 << 6; break;
|
|
case 8: flags += 2 << 6; break;
|
|
default: flags += 3 << 6;
|
|
}
|
|
#ifdef DEBUG
|
|
flags += 1 << 8;
|
|
#endif
|
|
#ifdef ZLIB_WINAPI
|
|
flags += 1 << 10;
|
|
#endif
|
|
#ifdef BUILDFIXED
|
|
flags += 1 << 12;
|
|
#endif
|
|
#ifdef DYNAMIC_CRC_TABLE
|
|
flags += 1 << 13;
|
|
#endif
|
|
#ifdef NO_GZCOMPRESS
|
|
flags += 1L << 16;
|
|
#endif
|
|
#ifdef NO_GZIP
|
|
flags += 1L << 17;
|
|
#endif
|
|
#ifdef PKZIP_BUG_WORKAROUND
|
|
flags += 1L << 20;
|
|
#endif
|
|
return flags;
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
|
|
# ifndef verbose
|
|
# define verbose 0
|
|
# endif
|
|
int ZLIB_INTERNAL z_verbose = verbose;
|
|
|
|
void ZLIB_INTERNAL z_error (m)
|
|
char *m;
|
|
{
|
|
fprintf(stderr, "%s\n", m);
|
|
exit(1);
|
|
}
|
|
#endif
|
|
|
|
/* exported to allow conversion of error code to string for compress() and
|
|
* uncompress()
|
|
*/
|
|
const char * ZEXPORT zError(int err)
|
|
{
|
|
return ERR_MSG(err);
|
|
}
|
|
|
|
#ifndef MY_ZCALLOC /* Any system without a special alloc function */
|
|
|
|
void ZLIB_INTERNAL *zcalloc (void *opaque, unsigned items, unsigned size)
|
|
{
|
|
(void)opaque;
|
|
return sizeof(unsigned int) > 2 ? (void *)malloc(items * size) :
|
|
(void *)calloc(items, size);
|
|
}
|
|
|
|
void ZLIB_INTERNAL zcfree (void *opaque, void *ptr)
|
|
{
|
|
(void)opaque;
|
|
free(ptr);
|
|
}
|
|
|
|
#endif /* MY_ZCALLOC */
|