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-rw-r--r--src/common/malloc.c18
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 */