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The base class takes care of this. TEST=util_test ScopedTaskSuspend.ScopedTaskSuspend R=rsesek@chromium.org Review URL: https://codereview.chromium.org/659493002
87 lines
2.4 KiB
C++
87 lines
2.4 KiB
C++
// Copyright 2014 The Crashpad Authors. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "util/mach/scoped_task_suspend.h"
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#include <mach/mach.h>
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#include "gtest/gtest.h"
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#include "util/file/fd_io.h"
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#include "util/test/mac/mach_errors.h"
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#include "util/test/mac/mach_multiprocess.h"
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namespace crashpad {
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namespace test {
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namespace {
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int SuspendCount(task_t task) {
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// As of the 10.8 SDK, the preferred routine is MACH_TASK_BASIC_INFO.
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// TASK_BASIC_INFO_64 is equivalent and works on earlier systems.
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task_basic_info_64 task_basic_info;
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mach_msg_type_number_t task_basic_info_count = TASK_BASIC_INFO_64_COUNT;
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kern_return_t kr = task_info(task,
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TASK_BASIC_INFO_64,
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reinterpret_cast<task_info_t>(&task_basic_info),
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&task_basic_info_count);
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if (kr != KERN_SUCCESS) {
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ADD_FAILURE() << MachErrorMessage(kr, "task_info");
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return -1;
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}
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return task_basic_info.suspend_count;
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}
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class ScopedTaskSuspendTest final : public MachMultiprocess {
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public:
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ScopedTaskSuspendTest() : MachMultiprocess() {}
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~ScopedTaskSuspendTest() {}
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private:
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// MachMultiprocess:
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void MachMultiprocessParent() override {
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task_t child_task = ChildTask();
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EXPECT_EQ(0, SuspendCount(child_task));
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{
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ScopedTaskSuspend suspend(child_task);
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EXPECT_EQ(1, SuspendCount(child_task));
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{
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ScopedTaskSuspend suspend_again(child_task);
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EXPECT_EQ(2, SuspendCount(child_task));
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}
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EXPECT_EQ(1, SuspendCount(child_task));
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}
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EXPECT_EQ(0, SuspendCount(child_task));
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}
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void MachMultiprocessChild() override {
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}
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DISALLOW_COPY_AND_ASSIGN(ScopedTaskSuspendTest);
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};
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TEST(ScopedTaskSuspend, ScopedTaskSuspend) {
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ScopedTaskSuspendTest scoped_task_suspend_test;
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scoped_task_suspend_test.Run();
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}
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} // namespace
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} // namespace test
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} // namespace crashpad
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