1*e0c1b49fSNick Terrell /*
2*e0c1b49fSNick Terrell * Copyright (c) Yann Collet, Facebook, Inc.
3*e0c1b49fSNick Terrell * All rights reserved.
4*e0c1b49fSNick Terrell *
5*e0c1b49fSNick Terrell * This source code is licensed under both the BSD-style license (found in the
6*e0c1b49fSNick Terrell * LICENSE file in the root directory of this source tree) and the GPLv2 (found
7*e0c1b49fSNick Terrell * in the COPYING file in the root directory of this source tree).
8*e0c1b49fSNick Terrell * You may select, at your option, one of the above-listed licenses.
9*e0c1b49fSNick Terrell */
10*e0c1b49fSNick Terrell
11*e0c1b49fSNick Terrell
12*e0c1b49fSNick Terrell
13*e0c1b49fSNick Terrell /*-*************************************
14*e0c1b49fSNick Terrell * Dependencies
15*e0c1b49fSNick Terrell ***************************************/
16*e0c1b49fSNick Terrell #define ZSTD_DEPS_NEED_MALLOC
17*e0c1b49fSNick Terrell #include "zstd_deps.h" /* ZSTD_malloc, ZSTD_calloc, ZSTD_free, ZSTD_memset */
18*e0c1b49fSNick Terrell #include "error_private.h"
19*e0c1b49fSNick Terrell #include "zstd_internal.h"
20*e0c1b49fSNick Terrell
21*e0c1b49fSNick Terrell
22*e0c1b49fSNick Terrell /*-****************************************
23*e0c1b49fSNick Terrell * Version
24*e0c1b49fSNick Terrell ******************************************/
ZSTD_versionNumber(void)25*e0c1b49fSNick Terrell unsigned ZSTD_versionNumber(void) { return ZSTD_VERSION_NUMBER; }
26*e0c1b49fSNick Terrell
ZSTD_versionString(void)27*e0c1b49fSNick Terrell const char* ZSTD_versionString(void) { return ZSTD_VERSION_STRING; }
28*e0c1b49fSNick Terrell
29*e0c1b49fSNick Terrell
30*e0c1b49fSNick Terrell /*-****************************************
31*e0c1b49fSNick Terrell * ZSTD Error Management
32*e0c1b49fSNick Terrell ******************************************/
33*e0c1b49fSNick Terrell #undef ZSTD_isError /* defined within zstd_internal.h */
34*e0c1b49fSNick Terrell /*! ZSTD_isError() :
35*e0c1b49fSNick Terrell * tells if a return value is an error code
36*e0c1b49fSNick Terrell * symbol is required for external callers */
ZSTD_isError(size_t code)37*e0c1b49fSNick Terrell unsigned ZSTD_isError(size_t code) { return ERR_isError(code); }
38*e0c1b49fSNick Terrell
39*e0c1b49fSNick Terrell /*! ZSTD_getErrorName() :
40*e0c1b49fSNick Terrell * provides error code string from function result (useful for debugging) */
ZSTD_getErrorName(size_t code)41*e0c1b49fSNick Terrell const char* ZSTD_getErrorName(size_t code) { return ERR_getErrorName(code); }
42*e0c1b49fSNick Terrell
43*e0c1b49fSNick Terrell /*! ZSTD_getError() :
44*e0c1b49fSNick Terrell * convert a `size_t` function result into a proper ZSTD_errorCode enum */
ZSTD_getErrorCode(size_t code)45*e0c1b49fSNick Terrell ZSTD_ErrorCode ZSTD_getErrorCode(size_t code) { return ERR_getErrorCode(code); }
46*e0c1b49fSNick Terrell
47*e0c1b49fSNick Terrell /*! ZSTD_getErrorString() :
48*e0c1b49fSNick Terrell * provides error code string from enum */
ZSTD_getErrorString(ZSTD_ErrorCode code)49*e0c1b49fSNick Terrell const char* ZSTD_getErrorString(ZSTD_ErrorCode code) { return ERR_getErrorString(code); }
50*e0c1b49fSNick Terrell
51*e0c1b49fSNick Terrell
52*e0c1b49fSNick Terrell
53*e0c1b49fSNick Terrell /*=**************************************************************
54*e0c1b49fSNick Terrell * Custom allocator
55*e0c1b49fSNick Terrell ****************************************************************/
ZSTD_customMalloc(size_t size,ZSTD_customMem customMem)56*e0c1b49fSNick Terrell void* ZSTD_customMalloc(size_t size, ZSTD_customMem customMem)
57*e0c1b49fSNick Terrell {
58*e0c1b49fSNick Terrell if (customMem.customAlloc)
59*e0c1b49fSNick Terrell return customMem.customAlloc(customMem.opaque, size);
60*e0c1b49fSNick Terrell return ZSTD_malloc(size);
61*e0c1b49fSNick Terrell }
62*e0c1b49fSNick Terrell
ZSTD_customCalloc(size_t size,ZSTD_customMem customMem)63*e0c1b49fSNick Terrell void* ZSTD_customCalloc(size_t size, ZSTD_customMem customMem)
64*e0c1b49fSNick Terrell {
65*e0c1b49fSNick Terrell if (customMem.customAlloc) {
66*e0c1b49fSNick Terrell /* calloc implemented as malloc+memset;
67*e0c1b49fSNick Terrell * not as efficient as calloc, but next best guess for custom malloc */
68*e0c1b49fSNick Terrell void* const ptr = customMem.customAlloc(customMem.opaque, size);
69*e0c1b49fSNick Terrell ZSTD_memset(ptr, 0, size);
70*e0c1b49fSNick Terrell return ptr;
71*e0c1b49fSNick Terrell }
72*e0c1b49fSNick Terrell return ZSTD_calloc(1, size);
73*e0c1b49fSNick Terrell }
74*e0c1b49fSNick Terrell
ZSTD_customFree(void * ptr,ZSTD_customMem customMem)75*e0c1b49fSNick Terrell void ZSTD_customFree(void* ptr, ZSTD_customMem customMem)
76*e0c1b49fSNick Terrell {
77*e0c1b49fSNick Terrell if (ptr!=NULL) {
78*e0c1b49fSNick Terrell if (customMem.customFree)
79*e0c1b49fSNick Terrell customMem.customFree(customMem.opaque, ptr);
80*e0c1b49fSNick Terrell else
81*e0c1b49fSNick Terrell ZSTD_free(ptr);
82*e0c1b49fSNick Terrell }
83*e0c1b49fSNick Terrell }
84