mirror of
https://github.com/klzgrad/naiveproxy.git
synced 2024-11-24 14:26:09 +03:00
57 lines
2.2 KiB
C
57 lines
2.2 KiB
C
|
// Copyright 2017 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.
|
||
|
|
|
||
|
|
#ifndef BASE_TEST_TEST_SHARED_MEMORY_UTIL_H_
|
||
|
|
#define BASE_TEST_TEST_SHARED_MEMORY_UTIL_H_
|
||
|
|
|
||
|
|
#include "base/memory/platform_shared_memory_region.h"
|
||
|
|
#include "base/memory/read_only_shared_memory_region.h"
|
||
|
|
#include "base/memory/shared_memory_handle.h"
|
||
|
|
#include "base/memory/shared_memory_mapping.h"
|
||
|
|
#include "testing/gtest/include/gtest/gtest.h"
|
||
|
|
|
||
|
|
namespace base {
|
||
|
|
|
||
|
|
// Check that the shared memory |handle| cannot be used to perform
|
||
|
|
// a writable mapping with low-level system APIs like mmap(). Return true
|
||
|
|
// in case of success (i.e. writable mappings are _not_ allowed), or false
|
||
|
|
// otherwise.
|
||
|
|
bool CheckReadOnlySharedMemoryHandleForTesting(SharedMemoryHandle handle);
|
||
|
|
|
||
|
|
bool CheckReadOnlyPlatformSharedMemoryRegionForTesting(
|
||
|
|
subtle::PlatformSharedMemoryRegion region);
|
||
|
|
|
||
|
|
// Creates a scoped mapping from a PlatformSharedMemoryRegion. It's useful for
|
||
|
|
// PlatformSharedMemoryRegion testing to not leak mapped memory.
|
||
|
|
// WritableSharedMemoryMapping is used for wrapping because it has max
|
||
|
|
// capabilities but the actual permission depends on the |region|'s mode.
|
||
|
|
// This must not be used in production where PlatformSharedMemoryRegion should
|
||
|
|
// be wrapped with {Writable,Unsafe,ReadOnly}SharedMemoryRegion.
|
||
|
|
WritableSharedMemoryMapping MapAtForTesting(
|
||
|
|
subtle::PlatformSharedMemoryRegion* region,
|
||
|
|
off_t offset,
|
||
|
|
size_t size);
|
||
|
|
|
||
|
|
WritableSharedMemoryMapping MapForTesting(
|
||
|
|
subtle::PlatformSharedMemoryRegion* region);
|
||
|
|
|
||
|
|
template <typename SharedMemoryRegionType>
|
||
|
|
std::pair<SharedMemoryRegionType, WritableSharedMemoryMapping>
|
||
|
|
CreateMappedRegion(size_t size) {
|
||
|
|
SharedMemoryRegionType region = SharedMemoryRegionType::Create(size);
|
||
|
|
WritableSharedMemoryMapping mapping = region.Map();
|
||
|
|
return {std::move(region), std::move(mapping)};
|
||
|
|
}
|
||
|
|
|
||
|
|
// Template specialization of CreateMappedRegion<>() for
|
||
|
|
// the ReadOnlySharedMemoryRegion. We need this because
|
||
|
|
// ReadOnlySharedMemoryRegion::Create() has a different return type.
|
||
|
|
template <>
|
||
|
|
std::pair<ReadOnlySharedMemoryRegion, WritableSharedMemoryMapping>
|
||
|
|
CreateMappedRegion(size_t size);
|
||
|
|
|
||
|
|
} // namespace base
|
||
|
|
|
||
|
|
#endif // BASE_TEST_TEST_SHARED_MEMORY_UTIL_H_
|