You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
60 lines
2.5 KiB
60 lines
2.5 KiB
/******************************************************************************
|
|
*
|
|
* Copyright 2014 Google, Inc.
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at:
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*
|
|
******************************************************************************/
|
|
|
|
#pragma once
|
|
|
|
#include <stdbool.h>
|
|
#include <stddef.h>
|
|
#include <stdint.h>
|
|
|
|
typedef struct allocation_tracker_t allocation_tracker_t;
|
|
typedef uint8_t allocator_id_t;
|
|
|
|
// Initialize the allocation tracker. If you do not call this function,
|
|
// the allocation tracker functions do nothing but are still safe to call.
|
|
void allocation_tracker_init(void);
|
|
|
|
// Reset the allocation tracker. Don't call this in the normal course of
|
|
// operations. Useful mostly for testing.
|
|
void allocation_tracker_reset(void);
|
|
|
|
// Expects that there are no allocations at the time of this call. Dumps
|
|
// information about unfreed allocations to the log. Returns the amount of
|
|
// unallocated memory.
|
|
size_t allocation_tracker_expect_no_allocations(void);
|
|
|
|
// Notify the tracker of a new allocation belonging to |allocator_id|.
|
|
// If |ptr| is NULL, this function does nothing. |requested_size| is the
|
|
// size of the allocation without any canaries. The caller must allocate
|
|
// enough memory for canaries; the total allocation size can be determined
|
|
// by calling |allocation_tracker_resize_for_canary|. Returns |ptr| offset
|
|
// to the the beginning of the uncanaried region.
|
|
void* allocation_tracker_notify_alloc(allocator_id_t allocator_id, void* ptr,
|
|
size_t requested_size);
|
|
|
|
// Notify the tracker of an allocation that is being freed. |ptr| must be a
|
|
// pointer returned by a call to |allocation_tracker_notify_alloc| with the
|
|
// same |allocator_id|. If |ptr| is NULL, this function does nothing. Returns
|
|
// |ptr| offset to the real beginning of the allocation including any canary
|
|
// space.
|
|
void* allocation_tracker_notify_free(allocator_id_t allocator_id, void* ptr);
|
|
|
|
// Get the full size for an allocation, taking into account the size of
|
|
// canaries.
|
|
size_t allocation_tracker_resize_for_canary(size_t size);
|