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| 1 // Copyright (c) 2013 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. | |
| 4 | |
| 5 #include "base/memory/discardable_memory.h" | |
| 6 | |
| 7 #include "testing/gtest/include/gtest/gtest.h" | |
| 8 | |
| 9 namespace base { | |
| 10 namespace { | |
| 11 | |
| 12 const size_t kSize = 1024; | |
| 13 | |
| 14 // Test Lock() and Unlock() functionalities. | |
| 15 TEST(DiscardableMemoryTest, LockAndUnLock) { | |
| 16 const scoped_ptr<DiscardableMemory> memory( | |
| 17 DiscardableMemory::CreateLockedMemory(kSize)); | |
| 18 ASSERT_TRUE(memory); | |
| 19 void* addr = memory->Memory(); | |
| 20 EXPECT_NE(nullptr, addr); | |
| 21 memory->Unlock(); | |
| 22 } | |
| 23 | |
| 24 // Test delete a discardable memory while it is locked. | |
| 25 TEST(DiscardableMemoryTest, DeleteWhileLocked) { | |
| 26 const scoped_ptr<DiscardableMemory> memory( | |
| 27 DiscardableMemory::CreateLockedMemory(kSize)); | |
| 28 ASSERT_TRUE(memory); | |
| 29 } | |
| 30 | |
| 31 #if !defined(NDEBUG) && !defined(OS_ANDROID) | |
| 32 // Death tests are not supported with Android APKs. | |
| 33 TEST(DiscardableMemoryTest, UnlockedMemoryAccessCrashesInDebugMode) { | |
| 34 const scoped_ptr<DiscardableMemory> memory( | |
| 35 DiscardableMemory::CreateLockedMemory(kSize)); | |
| 36 ASSERT_TRUE(memory); | |
| 37 memory->Unlock(); | |
| 38 ASSERT_DEATH_IF_SUPPORTED( | |
| 39 { *static_cast<int*>(memory->Memory()) = 0xdeadbeef; }, ".*"); | |
| 40 } | |
| 41 #endif | |
| 42 | |
| 43 // Test behavior when creating enough instances that could use up a 32-bit | |
| 44 // address space. | |
| 45 // This is disabled under AddressSanitizer on Windows as it crashes (by design) | |
| 46 // on OOM. See http://llvm.org/PR22026 for the details. | |
| 47 #if !defined(ADDRESS_SANITIZER) || !defined(OS_WIN) | |
| 48 TEST(DiscardableMemoryTest, AddressSpace) { | |
| 49 const size_t kLargeSize = 4 * 1024 * 1024; // 4MiB. | |
| 50 const size_t kNumberOfInstances = 1024 + 1; // >4GiB total. | |
| 51 | |
| 52 scoped_ptr<DiscardableMemory> instances[kNumberOfInstances]; | |
| 53 for (auto& memory : instances) { | |
| 54 memory = DiscardableMemory::CreateLockedMemory(kLargeSize); | |
| 55 ASSERT_TRUE(memory); | |
| 56 void* addr = memory->Memory(); | |
| 57 EXPECT_NE(nullptr, addr); | |
| 58 memory->Unlock(); | |
| 59 } | |
| 60 } | |
| 61 #endif | |
| 62 | |
| 63 } // namespace | |
| 64 } // namespace base | |
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Chromium Code Reviews
Issue 1004043002:
Re-land: base: Implement browser process support for discardable memory. (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master