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memblock_t is now a double-linked list so we can show where data was allocated which hasn't been freed

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Wolfgang (Blub) Bumiller 2012-08-21 11:41:01 +02:00
parent 22896e5ef6
commit 700860a435
1 changed files with 26 additions and 0 deletions
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26
util.c
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@ -33,8 +33,12 @@ struct memblock_t {
const char *file;
unsigned int line;
unsigned int byte;
struct memblock_t *next;
struct memblock_t *prev;
};
static struct memblock_t *mem_start = NULL;
void *util_memory_a(unsigned int byte, unsigned int line, const char *file) {
struct memblock_t *info = malloc(sizeof(struct memblock_t) + byte);
void *data =(void*)((unsigned char*)info+sizeof(struct memblock_t));
@ -42,6 +46,11 @@ void *util_memory_a(unsigned int byte, unsigned int line, const char *file) {
info->line = line;
info->byte = byte;
info->file = file;
info->prev = NULL;
info->next = mem_start;
if (mem_start)
mem_start->prev = info;
mem_start = info;
util_debug("MEM", "allocation: % 8u (bytes) address 0x%08X @ %s:%u\n", byte, data, file, line);
mem_at++;
@ -53,6 +62,7 @@ void *util_memory_a(unsigned int byte, unsigned int line, const char *file) {
void util_memory_d(void *ptrn, unsigned int line, const char *file) {
void *data = NULL;
struct memblock_t *info = NULL;
if (!ptrn) return;
data = (void*)((unsigned char *)ptrn-sizeof(struct memblock_t));
info = (struct memblock_t*)data;
@ -61,10 +71,19 @@ void util_memory_d(void *ptrn, unsigned int line, const char *file) {
mem_db += info->byte;
mem_dt++;
if (info->prev)
info->prev->next = info->next;
if (info->next)
info->next->prev = info->prev;
if (info == mem_start)
mem_start = info->next;
free(data);
}
void util_meminfo() {
struct memblock_t *info;
if (!opts_memchk)
return;
@ -79,6 +98,13 @@ void util_meminfo() {
(mem_ab - mem_db),
(mem_at - mem_dt)
);
for (info = mem_start; info; info = info->next) {
util_debug("MEM", "%u bytes lost at %s:%u\n",
info->byte,
info->file,
info->line);
}
}
/*