/*
memory_tracker_remove(size_t addr)
Removes an address and its corresponding size (if they exist)
from the memory tracker list and adjusts the current number
of bytes allocated.
Return:
0: on success
-1: if the mutex could not be locked
-2: if the addr was not found in the list
*/
int memory_tracker_remove(size_t addr) {
int ret = -1;
if (!memory_tracker_lock_mutex()) {
struct mem_block *p;
if ((p = memory_tracker_find(addr))) {
memtrack.current_allocated -= p->size;
p->prev->next = p->next;
if (p->next)
p->next->prev = p->prev;
else
memtrack.tail = p->prev;
ret = 0;
MEM_TRACK_FREE(p);
} else {
if (addr)
memtrack_log("memory_tracker_remove(): addr not found in list,"
" 0x%.8x\n", addr);
ret = -2;
}
memory_tracker_unlock_mutex();
}
return ret;
}
/*
vpx_memory_tracker_destroy()
If our global struct was initialized zeros out all its members,
frees memory and destroys it's mutex
*/
void vpx_memory_tracker_destroy() {
if (!memory_tracker_lock_mutex()) {
struct mem_block *p = memtrack.head,
* p2 = memtrack.head;
memory_tracker_dump();
while (p) {
p2 = p;
p = p->next;
MEM_TRACK_FREE(p2);
}
memtrack.head = NULL;
memtrack.tail = NULL;
memtrack.len = 0;
memtrack.current_allocated = 0;
memtrack.max_allocated = 0;
if (!g_logging.type && g_logging.file && g_logging.file != stderr) {
fclose(g_logging.file);
g_logging.file = NULL;
}
memory_tracker_unlock_mutex();
g_b_mem_tracker_inited = 0;
}
}
/*
vpx_memory_tracker_init(int padding_size, int pad_value)
padding_size - the size of the padding before and after each mem addr.
Values > 0 indicate that integrity checks can be performed
by inspecting these areas.
pad_value - the initial value within the padding area before and after
each mem addr.
Initializes global memory tracker structure
Allocates the head of the list
*/
int vpx_memory_tracker_init(int padding_size, int pad_value)
{
if (!g_b_mem_tracker_inited)
{
if (memtrack.head = (struct mem_block *)MEM_TRACK_MALLOC(sizeof(struct mem_block)))
{
int ret;
MEM_TRACK_MEMSET(memtrack.head, 0, sizeof(struct mem_block));
memtrack.tail = memtrack.head;
memtrack.current_allocated = 0;
memtrack.max_allocated = 0;
memtrack.padding_size = padding_size;
memtrack.pad_value = pad_value;
#if defined(LINUX) || defined(__uClinux__)
ret = pthread_mutex_init(&memtrack.mutex,
NULL); /*mutex attributes (NULL=default)*/
#elif defined(WIN32) || defined(_WIN32_WCE)
memtrack.mutex = create_mutex(NULL, /*security attributes*/
FALSE, /*we don't want initial ownership*/
NULL); /*mutex name*/
ret = !memtrack.mutex;
#elif defined(VXWORKS)
memtrack.mutex = sem_bcreate(SEM_Q_FIFO, /*SEM_Q_FIFO non-priority based mutex*/
SEM_FULL); /*SEM_FULL initial state is unlocked*/
ret = !memtrack.mutex;
#elif defined(NDS_NITRO)
os_init_mutex(&memtrack.mutex);
ret = 0;
#elif defined(NO_MUTEX)
ret = 0;
#endif
if (ret)
{
memtrack_log("vpx_memory_tracker_init: Error creating mutex!\n");
MEM_TRACK_FREE(memtrack.head);
memtrack.head = NULL;
}
else
{
memtrack_log("Memory Tracker init'd, v."vpx_mem_tracker_version" pad_size:%d pad_val:0x%x %d\n"
, padding_size
, pad_value
, pad_value);
g_b_mem_tracker_inited = 1;
}
}
}
return g_b_mem_tracker_inited;
}
int vpx_memory_tracker_init(int padding_size, int pad_value) {
if (!g_b_mem_tracker_inited) {
if ((memtrack.head = (struct mem_block *)
MEM_TRACK_MALLOC(sizeof(struct mem_block)))) {
int ret;
MEM_TRACK_MEMSET(memtrack.head, 0, sizeof(struct mem_block));
memtrack.tail = memtrack.head;
memtrack.current_allocated = 0;
memtrack.max_allocated = 0;
memtrack.padding_size = padding_size;
memtrack.pad_value = pad_value;
#if HAVE_PTHREAD_H
ret = pthread_mutex_init(&memtrack.mutex,
NULL);
#elif defined(WIN32) || defined(_WIN32_WCE)
memtrack.mutex = CreateMutex(NULL,
FALSE,
NULL);
ret = !memtrack.mutex;
#elif defined(VXWORKS)
memtrack.mutex = sem_bcreate(SEM_Q_FIFO,
SEM_FULL);
ret = !memtrack.mutex;
#elif defined(NO_MUTEX)
ret = 0;
#endif
if (ret) {
memtrack_log("vpx_memory_tracker_init: Error creating mutex!\n");
MEM_TRACK_FREE(memtrack.head);
memtrack.head = NULL;
} else {
memtrack_log("Memory Tracker init'd, v."vpx_mem_tracker_version" pad_size:%d pad_val:0x%x %d\n"
, padding_size
, pad_value
, pad_value);
g_b_mem_tracker_inited = 1;
}
}
}
return g_b_mem_tracker_inited;
}
/*
vpx_memory_tracker_destroy()
If our global struct was initialized zeros out all its members,
frees memory and destroys it's mutex
*/
void vpx_memory_tracker_destroy()
{
if (!memory_tracker_lock_mutex())
{
struct mem_block *p = memtrack.head,
* p2 = memtrack.head;
memory_tracker_dump();
while (p)
{
p2 = p;
p = p->next;
MEM_TRACK_FREE(p2);
}
memtrack.head = NULL;
memtrack.tail = NULL;
memtrack.len = 0;
memtrack.current_allocated = 0;
memtrack.max_allocated = 0;
if ((g_logging.type == 0) && (g_logging.file != 0)) //&& (g_logging.file != stderr) )
{
#if !defined(NDS_NITRO)
fclose(g_logging.file);
#endif
g_logging.file = NULL;
}
memory_tracker_unlock_mutex();
g_b_mem_tracker_inited = 0;
}
}
