blob: 1c28d9c7c42e89fb1d49eb75b50fecb7173203b1 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
|
// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/mac/scoped_mach_vm.h"
namespace base {
namespace mac {
void ScopedMachVM::reset(vm_address_t address, vm_size_t size) {
DCHECK(address % PAGE_SIZE == 0);
DCHECK(size % PAGE_SIZE == 0);
if (size_) {
if (address_ < address) {
vm_deallocate(mach_task_self(),
address_,
std::min(size_, address - address_));
}
if (address_ + size_ > address + size) {
vm_address_t deallocate_start = std::max(address_, address + size);
vm_deallocate(mach_task_self(),
deallocate_start,
address_ + size_ - deallocate_start);
}
}
address_ = address;
size_ = size;
}
} // namespace mac
} // namespace base
|
