92 static buffer_alloc_ctx heap;  variable
118     memory_header *cur = heap.first;  in debug_chain()
128     cur = heap.first_free;  in debug_chain()
185     memory_header *prv = heap.first, *cur = heap.first->next;  in verify_chain()
187     if( verify_header( heap.first ) != 0 )  in verify_chain()
196     if( heap.first->prev != NULL )  in verify_chain()
234     memory_header *new, *cur = heap.first_free;  in buffer_alloc_calloc()
243     if( heap.buf == NULL || heap.first == NULL )  in buffer_alloc_calloc()
280     heap.alloc_count++;  in buffer_alloc_calloc()
295             heap.first_free = cur->next_free;  in buffer_alloc_calloc()
304         heap.total_used += cur->size;  in buffer_alloc_calloc()
305         if( heap.total_used > heap.maximum_used )  in buffer_alloc_calloc()
306             heap.maximum_used = heap.total_used;  in buffer_alloc_calloc()
314         if( ( heap.verify & MBEDTLS_MEMORY_VERIFY_ALLOC ) && verify_chain() != 0 )  in buffer_alloc_calloc()
347         heap.first_free = new;  in buffer_alloc_calloc()
359     heap.header_count++;  in buffer_alloc_calloc()
360     if( heap.header_count > heap.maximum_header_count )  in buffer_alloc_calloc()
361         heap.maximum_header_count = heap.header_count;  in buffer_alloc_calloc()
362     heap.total_used += cur->size;  in buffer_alloc_calloc()
363     if( heap.total_used > heap.maximum_used )  in buffer_alloc_calloc()
364         heap.maximum_used = heap.total_used;  in buffer_alloc_calloc()
372     if( ( heap.verify & MBEDTLS_MEMORY_VERIFY_ALLOC ) && verify_chain() != 0 )  in buffer_alloc_calloc()
386     if( ptr == NULL || heap.buf == NULL || heap.first == NULL )  in buffer_alloc_free()
389     if( p < heap.buf || p > heap.buf + heap.len )  in buffer_alloc_free()
416     heap.free_count++;  in buffer_alloc_free()
417     heap.total_used -= hdr->size;  in buffer_alloc_free()
431         heap.header_count--;  in buffer_alloc_free()
449         heap.header_count--;  in buffer_alloc_free()
460                 heap.first_free = hdr->next_free;  in buffer_alloc_free()
472             heap.first_free = hdr;  in buffer_alloc_free()
488         hdr->next_free = heap.first_free;  in buffer_alloc_free()
489         if( heap.first_free != NULL )  in buffer_alloc_free()
490             heap.first_free->prev_free = hdr;  in buffer_alloc_free()
491         heap.first_free = hdr;  in buffer_alloc_free()
494     if( ( heap.verify & MBEDTLS_MEMORY_VERIFY_FREE ) && verify_chain() != 0 )  in buffer_alloc_free()
500     heap.verify = verify;  in mbedtls_memory_buffer_set_verify()
514                       heap.header_count, heap.total_used,  in mbedtls_memory_buffer_alloc_status()
515                       heap.maximum_header_count, heap.maximum_used,  in mbedtls_memory_buffer_alloc_status()
516                       heap.maximum_header_count * sizeof( memory_header )  in mbedtls_memory_buffer_alloc_status()
517                       + heap.maximum_used,  in mbedtls_memory_buffer_alloc_status()
518                       heap.alloc_count, heap.free_count );  in mbedtls_memory_buffer_alloc_status()
520     if( heap.first->next == NULL )  in mbedtls_memory_buffer_alloc_status()
531     *max_used   = heap.maximum_used;  in mbedtls_memory_buffer_alloc_max_get()
532     *max_blocks = heap.maximum_header_count;  in mbedtls_memory_buffer_alloc_max_get()
537     heap.maximum_used = 0;  in mbedtls_memory_buffer_alloc_max_reset()
538     heap.maximum_header_count = 0;  in mbedtls_memory_buffer_alloc_max_reset()
543     *cur_used   = heap.total_used;  in mbedtls_memory_buffer_alloc_cur_get()
544     *cur_blocks = heap.header_count;  in mbedtls_memory_buffer_alloc_cur_get()
552     if( mbedtls_mutex_lock( &heap.mutex ) != 0 )  in buffer_alloc_calloc_mutexed()
555     if( mbedtls_mutex_unlock( &heap.mutex ) )  in buffer_alloc_calloc_mutexed()
564     if( mbedtls_mutex_lock( &heap.mutex ) )  in buffer_alloc_free_mutexed()
567     (void) mbedtls_mutex_unlock( &heap.mutex );  in buffer_alloc_free_mutexed()
573     memset( &heap, 0, sizeof(buffer_alloc_ctx) );  in mbedtls_memory_buffer_alloc_init()
577     mbedtls_mutex_init( &heap.mutex );  in mbedtls_memory_buffer_alloc_init()
593     heap.buf = buf;  in mbedtls_memory_buffer_alloc_init()
594     heap.len = len;  in mbedtls_memory_buffer_alloc_init()
596     heap.first = (memory_header *) buf;  in mbedtls_memory_buffer_alloc_init()
597     heap.first->size = len - sizeof(memory_header);  in mbedtls_memory_buffer_alloc_init()
598     heap.first->magic1 = MAGIC1;  in mbedtls_memory_buffer_alloc_init()
599     heap.first->magic2 = MAGIC2;  in mbedtls_memory_buffer_alloc_init()
600     heap.first_free = heap.first;  in mbedtls_memory_buffer_alloc_init()
606     mbedtls_mutex_free( &heap.mutex );  in mbedtls_memory_buffer_alloc_free()
608     mbedtls_zeroize( &heap, sizeof(buffer_alloc_ctx) );  in mbedtls_memory_buffer_alloc_free()
627         heap.total_used != 0 ||  in check_all_free()
629         heap.first != heap.first_free ||  in check_all_free()
630         (void *) heap.first != (void *) heap.buf )  in check_all_free()
674     end = heap.buf + heap.len;  in mbedtls_memory_buffer_alloc_self_test()
686     TEST_ASSERT( heap.buf + heap.len == end );  in mbedtls_memory_buffer_alloc_self_test()