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/*
* Copyright (C) 2018 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "perfetto/base/watchdog.h"
#include "gtest/gtest.h"
#include "perfetto/base/logging.h"
#include "perfetto/base/page_allocator.h"
#include <time.h>
#include <map>
namespace perfetto {
namespace base {
namespace {
class TestWatchdog : public Watchdog {
public:
explicit TestWatchdog(uint32_t polling_interval_ms)
: Watchdog(polling_interval_ms) {}
~TestWatchdog() override {}
TestWatchdog(TestWatchdog&& other) noexcept = default;
};
TEST(WatchdogTest, TimerCrash) {
// Create a timer for 20 ms and don't release wihin the time.
EXPECT_DEATH(
{
TestWatchdog watchdog(100);
auto handle = watchdog.CreateFatalTimer(20);
usleep(200 * 1000);
},
"");
}
TEST(WatchdogTest, CrashEvenWhenMove) {
std::map<int, Watchdog::Timer> timers;
EXPECT_DEATH(
{
TestWatchdog watchdog(100);
timers.emplace(0, watchdog.CreateFatalTimer(20));
usleep(200 * 1000);
},
"");
}
TEST(WatchdogTest, CrashMemory) {
EXPECT_DEATH(
{
// Allocate 8MB of data and use it to increase RSS.
const size_t kSize = 8 * 1024 * 1024;
auto void_ptr = PageAllocator::Allocate(kSize);
volatile uint8_t* ptr = static_cast<volatile uint8_t*>(void_ptr.get());
for (size_t i = 0; i < kSize; i += sizeof(size_t)) {
*reinterpret_cast<volatile size_t*>(&ptr[i]) = i;
}
TestWatchdog watchdog(5);
watchdog.SetMemoryLimit(8 * 1024 * 1024, 25);
watchdog.Start();
// Sleep so that the watchdog has some time to pick it up.
usleep(1000 * 1000);
},
"");
}
TEST(WatchdogTest, CrashCpu) {
EXPECT_DEATH(
{
TestWatchdog watchdog(1);
watchdog.SetCpuLimit(10, 25);
watchdog.Start();
volatile int x = 0;
while (true) {
x++;
}
},
"");
}
} // namespace
} // namespace base
} // namespace perfetto