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01b347732e
Bug: crashpad:30 Change-Id: I6d4020220031670937acad12d0b7878c1ae0fae7 Reviewed-on: https://chromium-review.googlesource.com/583952 Reviewed-by: Mark Mentovai <mark@chromium.org>
96 lines
2.4 KiB
C++
96 lines
2.4 KiB
C++
// Copyright 2017 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/linux/proc_stat_reader.h"
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#include <sys/syscall.h>
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#include <time.h>
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#include <unistd.h>
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#include "base/logging.h"
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#include "gtest/gtest.h"
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#include "util/thread/thread.h"
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namespace crashpad {
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namespace test {
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namespace {
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TEST(ProcStatReader, Basic) {
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ProcStatReader stat;
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ASSERT_TRUE(stat.Initialize(getpid()));
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timeval start_time;
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ASSERT_TRUE(stat.StartTime(&start_time));
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time_t now;
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time(&now);
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EXPECT_LE(start_time.tv_sec, now);
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time_t elapsed_sec = now - start_time.tv_sec;
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timeval user_time;
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ASSERT_TRUE(stat.UserCPUTime(&user_time));
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EXPECT_LE(user_time.tv_sec, elapsed_sec);
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timeval system_time;
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ASSERT_TRUE(stat.SystemCPUTime(&system_time));
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EXPECT_LE(system_time.tv_sec, elapsed_sec);
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}
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pid_t gettid() {
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return syscall(SYS_gettid);
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}
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void GetStartTime(timeval* start_time) {
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ProcStatReader stat;
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ASSERT_TRUE(stat.Initialize(gettid()));
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ASSERT_TRUE(stat.StartTime(start_time));
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}
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class StatTimeThread : public Thread {
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public:
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StatTimeThread(timeval* start_time) : start_time_(start_time) {}
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private:
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void ThreadMain() override { GetStartTime(start_time_); }
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timeval* start_time_;
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};
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TEST(ProcStatReader, Threads) {
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timeval main_time;
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ASSERT_NO_FATAL_FAILURE(GetStartTime(&main_time));
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timeval thread_time;
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StatTimeThread thread(&thread_time);
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thread.Start();
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ASSERT_NO_FATAL_FAILURE(thread.Join());
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EXPECT_PRED4(
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[](time_t main_sec,
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suseconds_t main_usec,
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time_t thread_sec,
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suseconds_t thread_usec) {
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return (thread_sec > main_sec) ||
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(thread_sec == main_sec && thread_usec > main_usec);
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},
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main_time.tv_sec,
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main_time.tv_usec,
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thread_time.tv_sec,
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thread_time.tv_usec);
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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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