1 // Copyright 2014 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #include "base/mac/scoped_mach_vm.h"
10 void ScopedMachVM::reset(mach_vm_address_t address, mach_vm_size_t size) {
11 DCHECK(address % PAGE_SIZE == 0);
12 DCHECK(size % PAGE_SIZE == 0);
15 if (address_ < address) {
16 mach_vm_deallocate(mach_task_self(),
18 std::min(size_, address - address_));
20 if (address_ + size_ > address + size) {
21 mach_vm_address_t deallocate_start = std::max(address_, address + size);
22 mach_vm_deallocate(mach_task_self(),
24 address_ + size_ - deallocate_start);