diff options
Diffstat (limited to 'src/common/malloc.c')
| -rw-r--r-- | src/common/malloc.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/src/common/malloc.c b/src/common/malloc.c index a65ee7eed..70d6f89af 100644 --- a/src/common/malloc.c +++ b/src/common/malloc.c @@ -112,6 +112,8 @@ char* _bstrdup(const char *chr) #ifdef USE_MEMMGR +#define DEBUG_MEMMGR + /* USE_MEMMGR */ /* @@ -226,6 +228,10 @@ void* _mmalloc(size_t size, const char *file, int line, const char *func ) p->next = unit_head_large_first; } unit_head_large_first = p; +#ifdef DEBUG_MEMMGR + // set allocated data to 0xCD (clean memory) + memset(p + sizeof(struct unit_head_large) - sizeof(int), 0xCD, size); +#endif *(int*)((char*)p + sizeof(struct unit_head_large) - sizeof(int) + size) = 0xdeadbeaf; return (char *)p + sizeof(struct unit_head_large) - sizeof(int); } else { @@ -284,6 +290,10 @@ void* _mmalloc(size_t size, const char *file, int line, const char *func ) head->size = size; head->line = line; head->file = file; +#ifdef DEBUG_MEMMGR + // set allocated memory to 0xCD (clean memory) + memset(head + sizeof(struct unit_head) - sizeof(int), 0xCD, size); +#endif *(int*)((char*)head + sizeof(struct unit_head) - sizeof(int) + size) = 0xdeadbeaf; return (char *)head + sizeof(struct unit_head) - sizeof(int); } @@ -367,6 +377,10 @@ void _mfree(void *ptr, const char *file, int line, const char *func ) } head->block = NULL; memmgr_usage_bytes -= head->size; +#ifdef DEBUG_MEMMGR + // set freed memory to 0xDD (dead memory) + memset(ptr, 0xDD, size_hash - sizeof(struct unit_head_large) + sizeof(int) ); +#endif FREE(head_large,file,line,func); } else { ShowError("Memory manager: args of aFree is freed pointer %s:%d@%s\n", file, line, func); @@ -382,6 +396,10 @@ void _mfree(void *ptr, const char *file, int line, const char *func ) ShowError("Memory manager: args of aFree is overflowed pointer %s line %d\n", file, line); } else { head->block = NULL; +#ifdef DEBUG_MEMMGR + // set freed memory to 0xDD (dead memory) + memset(ptr, 0xDD, block->unit_size - sizeof(struct unit_head) + sizeof(int) ); +#endif memmgr_usage_bytes -= head->size; if(--block->unit_used == 0) { /* ブロックの解放 */ |