68 static buffer_alloc_ctx heap;  variable
95     memory_header *cur = heap.first;  in debug_chain()
104     cur = heap.first_free;  in debug_chain()
155     memory_header *prv = heap.first, *cur;  in verify_chain()
165     if (heap.first->prev != NULL) {  in verify_chain()
173     cur = heap.first->next;  in verify_chain()
201     memory_header *new, *cur = heap.first_free;  in buffer_alloc_calloc()
210     if (heap.buf == NULL || heap.first == NULL) {  in buffer_alloc_calloc()
250     heap.alloc_count++;  in buffer_alloc_calloc()
264             heap.first_free = cur->next_free;  in buffer_alloc_calloc()
275         heap.total_used += cur->size;  in buffer_alloc_calloc()
276         if (heap.total_used > heap.maximum_used) {  in buffer_alloc_calloc()
277             heap.maximum_used = heap.total_used;  in buffer_alloc_calloc()
286         if ((heap.verify & MBEDTLS_MEMORY_VERIFY_ALLOC) && verify_chain() != 0) {  in buffer_alloc_calloc()
321         heap.first_free = new;  in buffer_alloc_calloc()
335     heap.header_count++;  in buffer_alloc_calloc()
336     if (heap.header_count > heap.maximum_header_count) {  in buffer_alloc_calloc()
337         heap.maximum_header_count = heap.header_count;  in buffer_alloc_calloc()
339     heap.total_used += cur->size;  in buffer_alloc_calloc()
340     if (heap.total_used > heap.maximum_used) {  in buffer_alloc_calloc()
341         heap.maximum_used = heap.total_used;  in buffer_alloc_calloc()
350     if ((heap.verify & MBEDTLS_MEMORY_VERIFY_ALLOC) && verify_chain() != 0) {  in buffer_alloc_calloc()
365     if (ptr == NULL || heap.buf == NULL || heap.first == NULL) {  in buffer_alloc_free()
369     if (p < heap.buf || p >= heap.buf + heap.len) {  in buffer_alloc_free()
395     heap.free_count++;  in buffer_alloc_free()
396     heap.total_used -= hdr->size;  in buffer_alloc_free()
409         heap.header_count--;  in buffer_alloc_free()
427         heap.header_count--;  in buffer_alloc_free()
437                 heap.first_free = hdr->next_free;  in buffer_alloc_free()
451             heap.first_free = hdr;  in buffer_alloc_free()
469         hdr->next_free = heap.first_free;  in buffer_alloc_free()
470         if (heap.first_free != NULL) {  in buffer_alloc_free()
471             heap.first_free->prev_free = hdr;  in buffer_alloc_free()
473         heap.first_free = hdr;  in buffer_alloc_free()
476     if ((heap.verify & MBEDTLS_MEMORY_VERIFY_FREE) && verify_chain() != 0) {  in buffer_alloc_free()
483     heap.verify = verify;  in mbedtls_memory_buffer_set_verify()
497                     heap.header_count, heap.total_used,  in mbedtls_memory_buffer_alloc_status()
498                     heap.maximum_header_count, heap.maximum_used,  in mbedtls_memory_buffer_alloc_status()
499                     heap.maximum_header_count * sizeof(memory_header)  in mbedtls_memory_buffer_alloc_status()
500                     + heap.maximum_used,  in mbedtls_memory_buffer_alloc_status()
501                     heap.alloc_count, heap.free_count);  in mbedtls_memory_buffer_alloc_status()
503     if (heap.first->next == NULL) {  in mbedtls_memory_buffer_alloc_status()
513     *alloc_count = heap.alloc_count;  in mbedtls_memory_buffer_alloc_count_get()
514     *free_count = heap.free_count;  in mbedtls_memory_buffer_alloc_count_get()
519     *max_used   = heap.maximum_used;  in mbedtls_memory_buffer_alloc_max_get()
520     *max_blocks = heap.maximum_header_count;  in mbedtls_memory_buffer_alloc_max_get()
525     heap.maximum_used = 0;  in mbedtls_memory_buffer_alloc_max_reset()
526     heap.maximum_header_count = 0;  in mbedtls_memory_buffer_alloc_max_reset()
531     *cur_used   = heap.total_used;  in mbedtls_memory_buffer_alloc_cur_get()
532     *cur_blocks = heap.header_count;  in mbedtls_memory_buffer_alloc_cur_get()
540     if (mbedtls_mutex_lock(&heap.mutex) != 0) {  in buffer_alloc_calloc_mutexed()
544     if (mbedtls_mutex_unlock(&heap.mutex)) {  in buffer_alloc_calloc_mutexed()
554     if (mbedtls_mutex_lock(&heap.mutex)) {  in buffer_alloc_free_mutexed()
558     (void) mbedtls_mutex_unlock(&heap.mutex);  in buffer_alloc_free_mutexed()
564     memset(&heap, 0, sizeof(buffer_alloc_ctx));  in mbedtls_memory_buffer_alloc_init()
567     mbedtls_mutex_init(&heap.mutex);  in mbedtls_memory_buffer_alloc_init()
586     heap.buf = buf;  in mbedtls_memory_buffer_alloc_init()
587     heap.len = len;  in mbedtls_memory_buffer_alloc_init()
589     heap.first = (memory_header *) buf;  in mbedtls_memory_buffer_alloc_init()
590     heap.first->size = len - sizeof(memory_header);  in mbedtls_memory_buffer_alloc_init()
591     heap.first->magic1 = MAGIC1;  in mbedtls_memory_buffer_alloc_init()
592     heap.first->magic2 = MAGIC2;  in mbedtls_memory_buffer_alloc_init()
593     heap.first_free = heap.first;  in mbedtls_memory_buffer_alloc_init()
599     mbedtls_mutex_free(&heap.mutex);  in mbedtls_memory_buffer_alloc_free()
601     mbedtls_platform_zeroize(&heap, sizeof(buffer_alloc_ctx));  in mbedtls_memory_buffer_alloc_free()
622         heap.total_used != 0 ||  in check_all_free()
624         heap.first != heap.first_free ||  in check_all_free()
625         (void *) heap.first != (void *) heap.buf) {  in check_all_free()
669     end = heap.buf + heap.len;  in mbedtls_memory_buffer_alloc_self_test()
683     TEST_ASSERT(heap.buf + heap.len == end);  in mbedtls_memory_buffer_alloc_self_test()