diff options
Diffstat (limited to 'src/libgit2/allocators/win32_leakcheck.c')
-rw-r--r-- | src/libgit2/allocators/win32_leakcheck.c | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/src/libgit2/allocators/win32_leakcheck.c b/src/libgit2/allocators/win32_leakcheck.c new file mode 100644 index 000000000..fe06a14af --- /dev/null +++ b/src/libgit2/allocators/win32_leakcheck.c @@ -0,0 +1,118 @@ +/* + * Copyright (C) the libgit2 contributors. All rights reserved. + * + * This file is part of libgit2, distributed under the GNU GPL v2 with + * a Linking Exception. For full terms see the included COPYING file. + */ + +#include "win32_leakcheck.h" + +#if defined(GIT_WIN32_LEAKCHECK) + +#include "win32/w32_leakcheck.h" + +static void *leakcheck_malloc(size_t len, const char *file, int line) +{ + void *ptr = _malloc_dbg(len, _NORMAL_BLOCK, git_win32_leakcheck_stacktrace(1,file), line); + if (!ptr) git_error_set_oom(); + return ptr; +} + +static void *leakcheck_calloc(size_t nelem, size_t elsize, const char *file, int line) +{ + void *ptr = _calloc_dbg(nelem, elsize, _NORMAL_BLOCK, git_win32_leakcheck_stacktrace(1,file), line); + if (!ptr) git_error_set_oom(); + return ptr; +} + +static char *leakcheck_strdup(const char *str, const char *file, int line) +{ + char *ptr = _strdup_dbg(str, _NORMAL_BLOCK, git_win32_leakcheck_stacktrace(1,file), line); + if (!ptr) git_error_set_oom(); + return ptr; +} + +static char *leakcheck_strndup(const char *str, size_t n, const char *file, int line) +{ + size_t length = 0, alloclength; + char *ptr; + + length = p_strnlen(str, n); + + if (GIT_ADD_SIZET_OVERFLOW(&alloclength, length, 1) || + !(ptr = leakcheck_malloc(alloclength, file, line))) + return NULL; + + if (length) + memcpy(ptr, str, length); + + ptr[length] = '\0'; + + return ptr; +} + +static char *leakcheck_substrdup(const char *start, size_t n, const char *file, int line) +{ + char *ptr; + size_t alloclen; + + if (GIT_ADD_SIZET_OVERFLOW(&alloclen, n, 1) || + !(ptr = leakcheck_malloc(alloclen, file, line))) + return NULL; + + memcpy(ptr, start, n); + ptr[n] = '\0'; + return ptr; +} + +static void *leakcheck_realloc(void *ptr, size_t size, const char *file, int line) +{ + void *new_ptr = _realloc_dbg(ptr, size, _NORMAL_BLOCK, git_win32_leakcheck_stacktrace(1,file), line); + if (!new_ptr) git_error_set_oom(); + return new_ptr; +} + +static void *leakcheck_reallocarray(void *ptr, size_t nelem, size_t elsize, const char *file, int line) +{ + size_t newsize; + + if (GIT_MULTIPLY_SIZET_OVERFLOW(&newsize, nelem, elsize)) + return NULL; + + return leakcheck_realloc(ptr, newsize, file, line); +} + +static void *leakcheck_mallocarray(size_t nelem, size_t elsize, const char *file, int line) +{ + return leakcheck_reallocarray(NULL, nelem, elsize, file, line); +} + +static void leakcheck_free(void *ptr) +{ + free(ptr); +} + +int git_win32_leakcheck_init_allocator(git_allocator *allocator) +{ + allocator->gmalloc = leakcheck_malloc; + allocator->gcalloc = leakcheck_calloc; + allocator->gstrdup = leakcheck_strdup; + allocator->gstrndup = leakcheck_strndup; + allocator->gsubstrdup = leakcheck_substrdup; + allocator->grealloc = leakcheck_realloc; + allocator->greallocarray = leakcheck_reallocarray; + allocator->gmallocarray = leakcheck_mallocarray; + allocator->gfree = leakcheck_free; + return 0; +} + +#else + +int git_win32_leakcheck_init_allocator(git_allocator *allocator) +{ + GIT_UNUSED(allocator); + git_error_set(GIT_EINVALID, "leakcheck memory allocator not available"); + return -1; +} + +#endif |