Added functions to query and set the SDL memory allocation functions:

SDL_GetMemoryFunctions()
    SDL_SetMemoryFunctions()
    SDL_GetNumAllocations()
This commit is contained in:
Sam Lantinga 2017-10-12 13:44:28 -07:00
parent 1887c54c68
commit 9c580e14c9
25 changed files with 311 additions and 68 deletions

View file

@ -653,7 +653,7 @@ if(LIBC)
check_include_file(sys/types.h HAVE_SYS_TYPES_H)
foreach(_HEADER
stdio.h stdlib.h stddef.h stdarg.h malloc.h memory.h string.h limits.h
strings.h wchar.h inttypes.h stdint.h ctype.h math.h iconv.h signal.h)
strings.h wchar.h inttypes.h stdint.h ctype.h math.h iconv.h signal.h libunwind.h)
string(TOUPPER "HAVE_${_HEADER}" _UPPER)
string(REPLACE "." "_" _HAVE_H ${_UPPER})
check_include_file("${_HEADER}" ${_HAVE_H})
@ -669,7 +669,7 @@ if(LIBC)
foreach(_FN
strtod malloc calloc realloc free getenv setenv putenv unsetenv
qsort abs bcopy memset memcpy memmove memcmp strlen strlcpy strlcat
strdup _strrev _strupr _strlwr strchr strrchr strstr itoa _ltoa
_strrev _strupr _strlwr strchr strrchr strstr itoa _ltoa
_uitoa _ultoa strtol strtoul _i64toa _ui64toa strtoll strtoull
atoi atof strcmp strncmp _stricmp strcasecmp _strnicmp strncasecmp
vsscanf vsnprintf fopen64 fseeko fseeko64 sigaction setjmp

View file

@ -164,9 +164,10 @@
<ClCompile Include="..\..\src\test\SDL_test_imagePrimitivesBlend.c" />
<ClCompile Include="..\..\src\test\SDL_test_log.c" />
<ClCompile Include="..\..\src\test\SDL_test_md5.c" />
<ClCompile Include="..\..\src\test\SDL_test_memory.c" />
<ClCompile Include="..\..\src\test\SDL_test_random.c" />
</ItemGroup>
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
<ImportGroup Label="ExtensionTargets">
</ImportGroup>
</Project>
</Project>

View file

@ -6,6 +6,10 @@ This is a list of major changes in SDL's version history.
---------------------------------------------------------------------------
General:
* Added functions to query and set the SDL memory allocation functions:
SDL_GetMemoryFunctions()
SDL_SetMemoryFunctions()
SDL_GetNumAllocations()
* Added locking functions for multi-threaded access to the joystick and game controller APIs:
SDL_LockJoysticks()
SDL_UnlockJoysticks()

View file

@ -21,6 +21,8 @@
AA1EE46D176059AB0029C7A5 /* SDL_test_log.c in Sources */ = {isa = PBXBuildFile; fileRef = AA1EE45F176059AB0029C7A5 /* SDL_test_log.c */; };
AA1EE46E176059AB0029C7A5 /* SDL_test_md5.c in Sources */ = {isa = PBXBuildFile; fileRef = AA1EE460176059AB0029C7A5 /* SDL_test_md5.c */; };
AA1EE46F176059AB0029C7A5 /* SDL_test_random.c in Sources */ = {isa = PBXBuildFile; fileRef = AA1EE461176059AB0029C7A5 /* SDL_test_random.c */; };
AAF030011F9009B100B9A9FB /* SDL_test_memory.c in Sources */ = {isa = PBXBuildFile; fileRef = AAF02FFF1F9009B100B9A9FB /* SDL_test_memory.c */; };
AAF030021F9009B100B9A9FB /* SDL_test_assert.c in Sources */ = {isa = PBXBuildFile; fileRef = AAF030001F9009B100B9A9FB /* SDL_test_assert.c */; };
FA3D99011BC4E5BC002C96C8 /* SDL_test_common.c in Sources */ = {isa = PBXBuildFile; fileRef = AA1EE454176059AB0029C7A5 /* SDL_test_common.c */; };
FA3D99021BC4E5BC002C96C8 /* SDL_test_compare.c in Sources */ = {isa = PBXBuildFile; fileRef = AA1EE455176059AB0029C7A5 /* SDL_test_compare.c */; };
FA3D99031BC4E5BC002C96C8 /* SDL_test_crc32.c in Sources */ = {isa = PBXBuildFile; fileRef = AA1EE456176059AB0029C7A5 /* SDL_test_crc32.c */; };
@ -65,6 +67,8 @@
AA1EE45F176059AB0029C7A5 /* SDL_test_log.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; name = SDL_test_log.c; path = ../../src/test/SDL_test_log.c; sourceTree = "<group>"; };
AA1EE460176059AB0029C7A5 /* SDL_test_md5.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; name = SDL_test_md5.c; path = ../../src/test/SDL_test_md5.c; sourceTree = "<group>"; };
AA1EE461176059AB0029C7A5 /* SDL_test_random.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; name = SDL_test_random.c; path = ../../src/test/SDL_test_random.c; sourceTree = "<group>"; };
AAF02FFF1F9009B100B9A9FB /* SDL_test_memory.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; name = SDL_test_memory.c; path = ../../src/test/SDL_test_memory.c; sourceTree = "<group>"; };
AAF030001F9009B100B9A9FB /* SDL_test_assert.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; name = SDL_test_assert.c; path = ../../src/test/SDL_test_assert.c; sourceTree = "<group>"; };
FA3D98F81BC4E5A2002C96C8 /* libSDL2test-TV.a */ = {isa = PBXFileReference; explicitFileType = archive.ar; includeInIndex = 0; path = "libSDL2test-TV.a"; sourceTree = BUILT_PRODUCTS_DIR; };
/* End PBXFileReference section */
@ -106,6 +110,7 @@
AA1EE453176059770029C7A5 /* Library Source */ = {
isa = PBXGroup;
children = (
AAF030001F9009B100B9A9FB /* SDL_test_assert.c */,
AA1EE454176059AB0029C7A5 /* SDL_test_common.c */,
AA1EE455176059AB0029C7A5 /* SDL_test_compare.c */,
AA1EE456176059AB0029C7A5 /* SDL_test_crc32.c */,
@ -119,6 +124,7 @@
AA1EE45E176059AB0029C7A5 /* SDL_test_imagePrimitivesBlend.c */,
AA1EE45F176059AB0029C7A5 /* SDL_test_log.c */,
AA1EE460176059AB0029C7A5 /* SDL_test_md5.c */,
AAF02FFF1F9009B100B9A9FB /* SDL_test_memory.c */,
AA1EE461176059AB0029C7A5 /* SDL_test_random.c */,
);
name = "Library Source";
@ -213,12 +219,14 @@
AA1EE464176059AB0029C7A5 /* SDL_test_crc32.c in Sources */,
AA1EE465176059AB0029C7A5 /* SDL_test_font.c in Sources */,
AA1EE466176059AB0029C7A5 /* SDL_test_fuzzer.c in Sources */,
AAF030021F9009B100B9A9FB /* SDL_test_assert.c in Sources */,
AA1EE467176059AB0029C7A5 /* SDL_test_harness.c in Sources */,
AA1EE468176059AB0029C7A5 /* SDL_test_imageBlit.c in Sources */,
AA1EE469176059AB0029C7A5 /* SDL_test_imageBlitBlend.c in Sources */,
AA1EE46A176059AB0029C7A5 /* SDL_test_imageFace.c in Sources */,
AA1EE46B176059AB0029C7A5 /* SDL_test_imagePrimitives.c in Sources */,
AA1EE46C176059AB0029C7A5 /* SDL_test_imagePrimitivesBlend.c in Sources */,
AAF030011F9009B100B9A9FB /* SDL_test_memory.c in Sources */,
AA1EE46D176059AB0029C7A5 /* SDL_test_log.c in Sources */,
AA1EE46E176059AB0029C7A5 /* SDL_test_md5.c in Sources */,
AA1EE46F176059AB0029C7A5 /* SDL_test_random.c in Sources */,

View file

@ -348,6 +348,7 @@
00794EF009D23739003FC8A1 /* utf8.txt in CopyFiles */ = {isa = PBXBuildFile; fileRef = 00794E6309D20839003FC8A1 /* utf8.txt */; };
00794EF709D237DE003FC8A1 /* moose.dat in CopyFiles */ = {isa = PBXBuildFile; fileRef = 00794E5E09D20839003FC8A1 /* moose.dat */; };
453774A5120915E3002F0F45 /* testshape.c in Sources */ = {isa = PBXBuildFile; fileRef = 453774A4120915E3002F0F45 /* testshape.c */; };
AAF02FFA1F90092700B9A9FB /* SDL_test_memory.c in Sources */ = {isa = PBXBuildFile; fileRef = AAF02FF41F90089800B9A9FB /* SDL_test_memory.c */; };
BBFC08C0164C6862003E6A99 /* Cocoa.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 002F33A709CA188600EBEB88 /* Cocoa.framework */; };
BBFC08C1164C6862003E6A99 /* CoreAudio.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 002A863B10730545007319AE /* CoreAudio.framework */; };
BBFC08C2164C6862003E6A99 /* ForceFeedback.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 002A863C10730545007319AE /* ForceFeedback.framework */; };
@ -1152,6 +1153,7 @@
092D6D75FFB313BB7F000001 /* testlock.c */ = {isa = PBXFileReference; fileEncoding = 30; lastKnownFileType = sourcecode.c.c; name = testlock.c; path = ../../test/testlock.c; sourceTree = SOURCE_ROOT; };
4537749212091504002F0F45 /* testshape */ = {isa = PBXFileReference; explicitFileType = "compiled.mach-o.executable"; includeInIndex = 0; path = testshape; sourceTree = BUILT_PRODUCTS_DIR; };
453774A4120915E3002F0F45 /* testshape.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; name = testshape.c; path = ../../test/testshape.c; sourceTree = SOURCE_ROOT; };
AAF02FF41F90089800B9A9FB /* SDL_test_memory.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; name = SDL_test_memory.c; path = ../../src/test/SDL_test_memory.c; sourceTree = "<group>"; };
BBFC088E164C6820003E6A99 /* testgamecontroller.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; name = testgamecontroller.c; path = ../../test/testgamecontroller.c; sourceTree = "<group>"; };
BBFC08CD164C6862003E6A99 /* testgamecontroller */ = {isa = PBXFileReference; explicitFileType = "compiled.mach-o.executable"; includeInIndex = 0; path = testgamecontroller; sourceTree = BUILT_PRODUCTS_DIR; };
BEC566B60761D90300A33029 /* checkkeys */ = {isa = PBXFileReference; explicitFileType = "compiled.mach-o.executable"; includeInIndex = 0; path = checkkeys; sourceTree = BUILT_PRODUCTS_DIR; };
@ -2212,6 +2214,7 @@
DB166D8F16A1D1A500A1396C /* SDL_test_imagePrimitivesBlend.c */,
DB166D9016A1D1A500A1396C /* SDL_test_log.c */,
DB166D9116A1D1A500A1396C /* SDL_test_md5.c */,
AAF02FF41F90089800B9A9FB /* SDL_test_memory.c */,
DB166D9216A1D1A500A1396C /* SDL_test_random.c */,
);
name = SDL_Test;
@ -3393,6 +3396,7 @@
DB166D9E16A1D1A500A1396C /* SDL_test_imagePrimitivesBlend.c in Sources */,
DB166D9F16A1D1A500A1396C /* SDL_test_log.c in Sources */,
DB166DA016A1D1A500A1396C /* SDL_test_md5.c in Sources */,
AAF02FFA1F90092700B9A9FB /* SDL_test_memory.c in Sources */,
DB166DA116A1D1A500A1396C /* SDL_test_random.c in Sources */,
);
runOnlyForDeploymentPostprocessing = 0;

15
configure vendored
View file

@ -16635,7 +16635,7 @@ fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi
for ac_func in malloc calloc realloc free getenv setenv putenv unsetenv qsort abs bcopy memset memcpy memmove wcslen wcscmp strlen strlcpy strlcat strdup _strrev _strupr _strlwr strchr strrchr strstr itoa _ltoa _uitoa _ultoa strtol strtoul _i64toa _ui64toa strtoll strtoull atoi atof strcmp strncmp _stricmp strcasecmp _strnicmp strncasecmp vsscanf vsnprintf fopen64 fseeko fseeko64 sigaction setjmp nanosleep sysconf sysctlbyname getauxval poll
for ac_func in malloc calloc realloc free getenv setenv putenv unsetenv qsort abs bcopy memset memcpy memmove wcslen wcscmp strlen strlcpy strlcat _strrev _strupr _strlwr strchr strrchr strstr itoa _ltoa _uitoa _ultoa strtol strtoul _i64toa _ui64toa strtoll strtoull atoi atof strcmp strncmp _stricmp strcasecmp _strnicmp strncasecmp vsscanf vsnprintf fopen64 fseeko fseeko64 sigaction setjmp nanosleep sysconf sysctlbyname getauxval poll
do :
as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
@ -16761,6 +16761,19 @@ $as_echo "#define HAVE_SA_SIGACTION 1" >>confdefs.h
fi
for ac_header in libunwind.h
do :
ac_fn_c_check_header_mongrel "$LINENO" "libunwind.h" "ac_cv_header_libunwind_h" "$ac_includes_default"
if test "x$ac_cv_header_libunwind_h" = xyes; then :
cat >>confdefs.h <<_ACEOF
#define HAVE_LIBUNWIND_H 1
_ACEOF
fi
done
fi

View file

@ -268,7 +268,7 @@ if test x$enable_libc = xyes; then
AC_DEFINE(HAVE_MPROTECT, 1, [ ])
]),
)
AC_CHECK_FUNCS(malloc calloc realloc free getenv setenv putenv unsetenv qsort abs bcopy memset memcpy memmove wcslen wcscmp strlen strlcpy strlcat strdup _strrev _strupr _strlwr strchr strrchr strstr itoa _ltoa _uitoa _ultoa strtol strtoul _i64toa _ui64toa strtoll strtoull atoi atof strcmp strncmp _stricmp strcasecmp _strnicmp strncasecmp vsscanf vsnprintf fopen64 fseeko fseeko64 sigaction setjmp nanosleep sysconf sysctlbyname getauxval poll)
AC_CHECK_FUNCS(malloc calloc realloc free getenv setenv putenv unsetenv qsort abs bcopy memset memcpy memmove wcslen wcscmp strlen strlcpy strlcat _strrev _strupr _strlwr strchr strrchr strstr itoa _ltoa _uitoa _ultoa strtol strtoul _i64toa _ui64toa strtoll strtoull atoi atof strcmp strncmp _stricmp strcasecmp _strnicmp strncasecmp vsscanf vsnprintf fopen64 fseeko fseeko64 sigaction setjmp nanosleep sysconf sysctlbyname getauxval poll)
AC_CHECK_LIB(m, pow, [LIBS="$LIBS -lm"; EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lm"])
AC_CHECK_FUNCS(atan atan2 acos asin ceil copysign cos cosf fabs floor log pow scalbn sin sinf sqrt sqrtf tan tanf)
@ -277,6 +277,9 @@ if test x$enable_libc = xyes; then
AC_CHECK_FUNCS(iconv)
AC_CHECK_MEMBER(struct sigaction.sa_sigaction,[AC_DEFINE([HAVE_SA_SIGACTION], 1, [ ])], ,[#include <signal.h>])
dnl Check for additional non-standard headers
AC_CHECK_HEADERS(libunwind.h)
fi
dnl AC_CHECK_SIZEOF(void*)

View file

@ -72,6 +72,7 @@
#cmakedefine HAVE_SYS_TYPES_H 1
#cmakedefine HAVE_WCHAR_H 1
#cmakedefine HAVE_PTHREAD_NP_H 1
#cmakedefine HAVE_LIBUNWIND_H 1
/* C library functions */
#cmakedefine HAVE_MALLOC 1
@ -99,7 +100,6 @@
#cmakedefine HAVE_STRLEN 1
#cmakedefine HAVE_STRLCPY 1
#cmakedefine HAVE_STRLCAT 1
#cmakedefine HAVE_STRDUP 1
#cmakedefine HAVE__STRREV 1
#cmakedefine HAVE__STRUPR 1
#cmakedefine HAVE__STRLWR 1

View file

@ -75,6 +75,7 @@
#undef HAVE_SYS_TYPES_H
#undef HAVE_WCHAR_H
#undef HAVE_PTHREAD_NP_H
#undef HAVE_LIBUNWIND_H
/* C library functions */
#undef HAVE_MALLOC
@ -102,7 +103,6 @@
#undef HAVE_STRLEN
#undef HAVE_STRLCPY
#undef HAVE_STRLCAT
#undef HAVE_STRDUP
#undef HAVE__STRREV
#undef HAVE__STRUPR
#undef HAVE__STRLWR

View file

@ -46,6 +46,7 @@
#define HAVE_STDIO_H 1
#define HAVE_STRING_H 1
#define HAVE_SYS_TYPES_H 1
#define HAVE_LIBUNWIND_H 1
/* C library functions */
#define HAVE_MALLOC 1
@ -68,7 +69,6 @@
#define HAVE_STRLEN 1
#define HAVE_STRLCPY 1
#define HAVE_STRLCAT 1
#define HAVE_STRDUP 1
#define HAVE_STRCHR 1
#define HAVE_STRRCHR 1
#define HAVE_STRSTR 1

View file

@ -44,6 +44,7 @@
#define HAVE_STDIO_H 1
#define HAVE_STRING_H 1
#define HAVE_SYS_TYPES_H 1
#define HAVE_LIBUNWIND_H 1
/* C library functions */
#define HAVE_MALLOC 1
@ -66,7 +67,6 @@
#define HAVE_STRLEN 1
#define HAVE_STRLCPY 1
#define HAVE_STRLCAT 1
#define HAVE_STRDUP 1
#define HAVE_STRCHR 1
#define HAVE_STRRCHR 1
#define HAVE_STRSTR 1

View file

@ -49,6 +49,7 @@
#define HAVE_STDIO_H 1
#define HAVE_STRING_H 1
#define HAVE_SYS_TYPES_H 1
#define HAVE_LIBUNWIND_H 1
/* C library functions */
#define HAVE_MALLOC 1
@ -70,7 +71,6 @@
#define HAVE_STRLEN 1
#define HAVE_STRLCPY 1
#define HAVE_STRLCAT 1
#define HAVE_STRDUP 1
#define HAVE_STRCHR 1
#define HAVE_STRRCHR 1
#define HAVE_STRSTR 1

View file

@ -70,7 +70,6 @@
#define HAVE_MEMCPY 1
#define HAVE_MEMMOVE 1
#define HAVE_STRLEN 1
#define HAVE_STRDUP 1
#define HAVE_STRCHR 1
#define HAVE_STRRCHR 1
#define HAVE_STRSTR 1

View file

@ -66,7 +66,6 @@
#define HAVE_STRLEN 1
#define HAVE_STRLCPY 1
#define HAVE_STRLCAT 1
#define HAVE_STRDUP 1
#define HAVE_STRCHR 1
#define HAVE_STRRCHR 1
#define HAVE_STRSTR 1

View file

@ -64,7 +64,6 @@
#define HAVE_MEMCPY 1
#define HAVE_MEMMOVE 1
#define HAVE_STRLEN 1
#define HAVE_STRDUP 1
#define HAVE_STRCHR 1
#define HAVE_STRRCHR 1
#define HAVE_STRSTR 1

View file

@ -347,6 +347,37 @@ extern DECLSPEC void *SDLCALL SDL_calloc(size_t nmemb, size_t size);
extern DECLSPEC void *SDLCALL SDL_realloc(void *mem, size_t size);
extern DECLSPEC void SDLCALL SDL_free(void *mem);
typedef void *(SDLCALL *SDL_malloc_func)(size_t size);
typedef void *(SDLCALL *SDL_calloc_func)(size_t nmemb, size_t size);
typedef void *(SDLCALL *SDL_realloc_func)(void *mem, size_t size);
typedef void (SDLCALL *SDL_free_func)(void *mem);
/**
* \brief Get the current set of SDL memory functions
*/
extern DECLSPEC void SDLCALL SDL_GetMemoryFunctions(SDL_malloc_func *malloc_func,
SDL_calloc_func *calloc_func,
SDL_realloc_func *realloc_func,
SDL_free_func *free_func);
/**
* \brief Replace SDL's memory allocation functions with a custom set
*
* \note If you are replacing SDL's memory functions, you should call
* SDL_GetNumAllocations() and be very careful if it returns non-zero.
* That means that your free function will be called with memory
* allocated by the previous memory allocation functions.
*/
extern DECLSPEC int SDLCALL SDL_SetMemoryFunctions(SDL_malloc_func malloc_func,
SDL_calloc_func calloc_func,
SDL_realloc_func realloc_func,
SDL_free_func free_func);
/**
* \brief Get the number of outstanding (unfreed) allocations
*/
extern DECLSPEC int SDLCALL SDL_GetNumAllocations();
extern DECLSPEC char *SDLCALL SDL_getenv(const char *name);
extern DECLSPEC int SDLCALL SDL_setenv(const char *name, const char *value, int overwrite);

View file

@ -31,17 +31,18 @@
#define SDL_test_h_
#include "SDL.h"
#include "SDL_test_common.h"
#include "SDL_test_font.h"
#include "SDL_test_random.h"
#include "SDL_test_fuzzer.h"
#include "SDL_test_crc32.h"
#include "SDL_test_md5.h"
#include "SDL_test_log.h"
#include "SDL_test_assert.h"
#include "SDL_test_common.h"
#include "SDL_test_compare.h"
#include "SDL_test_crc32.h"
#include "SDL_test_font.h"
#include "SDL_test_fuzzer.h"
#include "SDL_test_harness.h"
#include "SDL_test_images.h"
#include "SDL_test_compare.h"
#include "SDL_test_log.h"
#include "SDL_test_md5.h"
#include "SDL_test_memory.h"
#include "SDL_test_random.h"
#include "begin_code.h"
/* Set up for C function definitions, even when using C++ */

View file

@ -93,7 +93,7 @@ extern "C" {
* \returns 0 for OK, -1 on error
*
*/
int SDLTest_crc32Calc(SDLTest_Crc32Context * crcContext, CrcUint8 *inBuf, CrcUint32 inLen, CrcUint32 *crc32);
int SDLTest_Crc32Calc(SDLTest_Crc32Context * crcContext, CrcUint8 *inBuf, CrcUint32 inLen, CrcUint32 *crc32);
/* Same routine broken down into three steps */
int SDLTest_Crc32CalcStart(SDLTest_Crc32Context * crcContext, CrcUint32 *crc32);

63
include/SDL_test_memory.h Normal file
View file

@ -0,0 +1,63 @@
/*
Simple DirectMedia Layer
Copyright (C) 1997-2017 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
/**
* \file SDL_test_memory.h
*
* Include file for SDL test framework.
*
* This code is a part of the SDL2_test library, not the main SDL library.
*/
#ifndef SDL_test_memory_h_
#define SDL_test_memory_h_
#include "begin_code.h"
/* Set up for C function definitions, even when using C++ */
#ifdef __cplusplus
extern "C" {
#endif
/**
* \brief Start tracking SDL memory allocations
*
* \note This should be called before any other SDL functions for complete tracking coverage
*/
int SDLTest_TrackAllocations();
/**
* \brief Print a log of any outstanding allocations
*
* \note This can be called after SDL_Quit()
*/
void SDLTest_LogAllocations();
/* Ends C function definitions when using C++ */
#ifdef __cplusplus
}
#endif
#include "close_code.h"
#endif /* SDL_test_memory_h_ */
/* vi: set ts=4 sw=4 expandtab: */

View file

@ -637,3 +637,6 @@
#define SDL_Vulkan_GetDrawableSize SDL_Vulkan_GetDrawableSize_REAL
#define SDL_LockJoysticks SDL_LockJoysticks_REAL
#define SDL_UnlockJoysticks SDL_UnlockJoysticks_REAL
#define SDL_GetMemoryFunctions SDL_GetMemoryFunctions_REAL
#define SDL_SetMemoryFunctions SDL_SetMemoryFunctions_REAL
#define SDL_GetNumAllocations SDL_GetNumAllocations_REAL

View file

@ -671,3 +671,6 @@ SDL_DYNAPI_PROC(SDL_bool,SDL_Vulkan_CreateSurface,(SDL_Window *a, VkInstance b,
SDL_DYNAPI_PROC(void,SDL_Vulkan_GetDrawableSize,(SDL_Window *a, int *b, int *c),(a,b,c),)
SDL_DYNAPI_PROC(void,SDL_LockJoysticks,(void),(),)
SDL_DYNAPI_PROC(void,SDL_UnlockJoysticks,(void),(),)
SDL_DYNAPI_PROC(void,SDL_GetMemoryFunctions,(SDL_malloc_func *a, SDL_calloc_func *b, SDL_realloc_func *c, SDL_free_func *d),(a,b,c,d),)
SDL_DYNAPI_PROC(int,SDL_SetMemoryFunctions,(SDL_malloc_func a, SDL_calloc_func b, SDL_realloc_func c, SDL_free_func d),(a,b,c,d),return)
SDL_DYNAPI_PROC(int,SDL_GetNumAllocations,(void),(),return)

View file

@ -26,39 +26,11 @@
#include "../SDL_internal.h"
/* This file contains portable memory management functions for SDL */
#include "SDL_stdinc.h"
#include "SDL_atomic.h"
#include "SDL_error.h"
#if defined(HAVE_MALLOC)
void *SDL_malloc(size_t size)
{
if (!size) {
return malloc(1);
}
return malloc(size);
}
void *SDL_calloc(size_t nmemb, size_t size)
{
if (!size || !nmemb) {
return calloc(1,1);
}
return calloc(nmemb, size);
}
void *SDL_realloc(void *ptr, size_t size)
{
return realloc(ptr, size);
}
void SDL_free(void *ptr)
{
free(ptr);
}
#else /* the rest of this is a LOT of tapdancing to implement malloc. :) */
#ifndef HAVE_MALLOC
#define LACKS_SYS_TYPES_H
#define LACKS_STDIO_H
#define LACKS_STRINGS_H
@ -66,6 +38,7 @@ void SDL_free(void *ptr)
#define LACKS_STDLIB_H
#define ABORT
#define USE_LOCKS 1
#define USE_DL_PREFIX
/*
This is a version (aka dlmalloc) of malloc/free/realloc written by
@ -642,12 +615,12 @@ DEFAULT_MMAP_THRESHOLD default: 256K
#define MALLINFO_FIELD_TYPE size_t
#endif /* MALLINFO_FIELD_TYPE */
#ifndef memset
#define memset SDL_memset
#endif
#ifndef memcpy
#define memcpy SDL_memcpy
#define malloc SDL_malloc
#define calloc SDL_calloc
#define realloc SDL_realloc
#define free SDL_free
#endif
/*
mallopt tuning options. SVID/XPG defines four standard parameter
@ -5271,4 +5244,133 @@ History:
#endif /* !HAVE_MALLOC */
#ifdef HAVE_MALLOC
#define real_malloc malloc
#define real_calloc calloc
#define real_realloc realloc
#define real_free free
#else
#define real_malloc dlmalloc
#define real_calloc dlcalloc
#define real_realloc dlrealloc
#define real_free dlfree
#endif
/* Memory functions used by SDL that can be replaced by the application */
static struct
{
SDL_malloc_func malloc_func;
SDL_calloc_func calloc_func;
SDL_realloc_func realloc_func;
SDL_free_func free_func;
SDL_atomic_t num_allocations;
} s_mem = {
real_malloc, real_calloc, real_realloc, real_free, { 0 }
};
void SDL_GetMemoryFunctions(SDL_malloc_func *malloc_func,
SDL_calloc_func *calloc_func,
SDL_realloc_func *realloc_func,
SDL_free_func *free_func)
{
if (malloc_func) {
*malloc_func = s_mem.malloc_func;
}
if (calloc_func) {
*calloc_func = s_mem.calloc_func;
}
if (realloc_func) {
*realloc_func = s_mem.realloc_func;
}
if (free_func) {
*free_func = s_mem.free_func;
}
}
int SDL_SetMemoryFunctions(SDL_malloc_func malloc_func,
SDL_calloc_func calloc_func,
SDL_realloc_func realloc_func,
SDL_free_func free_func)
{
if (!malloc_func) {
return SDL_InvalidParamError("malloc_func");
}
if (!calloc_func) {
return SDL_InvalidParamError("calloc_func");
}
if (!realloc_func) {
return SDL_InvalidParamError("realloc_func");
}
if (!free_func) {
return SDL_InvalidParamError("free_func");
}
s_mem.malloc_func = malloc_func;
s_mem.calloc_func = calloc_func;
s_mem.realloc_func = realloc_func;
s_mem.free_func = free_func;
return 0;
}
int SDL_GetNumAllocations()
{
return SDL_AtomicGet(&s_mem.num_allocations);
}
void *SDL_malloc(size_t size)
{
void *mem;
if (!size) {
size = 1;
}
mem = s_mem.malloc_func(size);
if (mem) {
SDL_AtomicIncRef(&s_mem.num_allocations);
}
return mem;
}
void *SDL_calloc(size_t nmemb, size_t size)
{
void *mem;
if (!nmemb || !size) {
nmemb = 1;
size = 1;
}
mem = s_mem.calloc_func(nmemb, size);
if (mem) {
SDL_AtomicIncRef(&s_mem.num_allocations);
}
return mem;
}
void *SDL_realloc(void *ptr, size_t size)
{
void *mem;
if (!ptr && !size) {
size = 1;
}
mem = s_mem.realloc_func(ptr, size);
if (mem && !ptr) {
SDL_AtomicIncRef(&s_mem.num_allocations);
}
return mem;
}
void SDL_free(void *ptr)
{
if (!ptr) {
return;
}
s_mem.free_func(ptr);
SDL_AtomicDecRef(&s_mem.num_allocations);
}
/* vi: set ts=4 sw=4 expandtab: */

View file

@ -561,16 +561,12 @@ SDL_strlcat(SDL_INOUT_Z_CAP(maxlen) char *dst, const char *src, size_t maxlen)
char *
SDL_strdup(const char *string)
{
#if defined(HAVE_STRDUP)
return strdup(string);
#else
size_t len = SDL_strlen(string) + 1;
char *newstr = SDL_malloc(len);
if (newstr) {
SDL_strlcpy(newstr, string, len);
}
return newstr;
#endif /* HAVE_STRDUP */
}
char *

View file

@ -47,7 +47,18 @@ static void SDL_snprintfcat(SDL_OUT_Z_CAP(maxlen) char *text, size_t maxlen, SDL
SDLTest_CommonState *
SDLTest_CommonCreateState(char **argv, Uint32 flags)
{
SDLTest_CommonState *state = (SDLTest_CommonState *)SDL_calloc(1, sizeof(*state));
int i;
SDLTest_CommonState *state;
/* Do this first so we catch all allocations */
for (i = 1; argv[i]; ++i) {
if (SDL_strcasecmp(argv[i], "--trackmem") == 0) {
SDLTest_TrackAllocations();
break;
}
}
state = (SDLTest_CommonState *)SDL_calloc(1, sizeof(*state));
if (!state) {
SDL_OutOfMemory();
return NULL;
@ -447,6 +458,10 @@ SDLTest_CommonArg(SDLTest_CommonState * state, int index)
state->audiospec.samples = (Uint16) SDL_atoi(argv[index]);
return 2;
}
if (SDL_strcasecmp(argv[index], "--trackmem") == 0) {
/* Already handled in SDLTest_CommonCreateState() */
return 1;
}
if ((SDL_strcasecmp(argv[index], "-h") == 0)
|| (SDL_strcasecmp(argv[index], "--help") == 0)) {
/* Print the usage message */
@ -464,13 +479,13 @@ SDLTest_CommonUsage(SDLTest_CommonState * state)
{
switch (state->flags & (SDL_INIT_VIDEO | SDL_INIT_AUDIO)) {
case SDL_INIT_VIDEO:
return VIDEO_USAGE;
return "[--trackmem] " VIDEO_USAGE;
case SDL_INIT_AUDIO:
return AUDIO_USAGE;
return "[--trackmem] " AUDIO_USAGE;
case (SDL_INIT_VIDEO | SDL_INIT_AUDIO):
return VIDEO_USAGE " " AUDIO_USAGE;
return "[--trackmem] " VIDEO_USAGE " " AUDIO_USAGE;
default:
return "";
return "[--trackmem]";
}
}
@ -1762,6 +1777,7 @@ SDLTest_CommonQuit(SDLTest_CommonState * state)
}
SDL_free(state);
SDL_Quit();
SDLTest_LogAllocations();
}
/* vi: set ts=4 sw=4 expandtab: */

View file

@ -69,7 +69,6 @@ int SDLTest_Crc32Init(SDLTest_Crc32Context *crcContext)
}
/* Complete CRC32 calculation on a memory block */
/* un-used
int SDLTest_Crc32Calc(SDLTest_Crc32Context * crcContext, CrcUint8 *inBuf, CrcUint32 inLen, CrcUint32 *crc32)
{
if (SDLTest_Crc32CalcStart(crcContext,crc32)) {
@ -86,7 +85,6 @@ int SDLTest_Crc32Calc(SDLTest_Crc32Context * crcContext, CrcUint8 *inBuf, CrcUin
return 0;
}
*/
/* Start crc calculation */