| /* |
| * 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. |
| */ |
| |
| #ifndef INCLUDE_PERFETTO_EXT_BASE_WATCHDOG_H_ |
| #define INCLUDE_PERFETTO_EXT_BASE_WATCHDOG_H_ |
| |
| #include <functional> |
| |
| #include "perfetto/base/build_config.h" |
| |
| // The POSIX watchdog is only supported on Linux and Android in non-embedder |
| // builds. |
| #if PERFETTO_BUILDFLAG(PERFETTO_WATCHDOG) |
| #include "perfetto/ext/base/watchdog_posix.h" |
| #else |
| #include "perfetto/ext/base/watchdog_noop.h" |
| #endif |
| |
| namespace perfetto { |
| namespace base { |
| |
| // Used only to add more details to crash reporting. |
| enum class WatchdogCrashReason { |
| kUnspecified = 0, |
| kCpuGuardrail = 1, |
| kMemGuardrail = 2, |
| kTaskRunnerHung = 3, |
| kTraceDidntStop = 4, |
| }; |
| |
| // Make the limits more relaxed on desktop, where multi-GB traces are likely. |
| // Multi-GB traces can take bursts of cpu time to write into disk at the end of |
| // the trace. |
| #if PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID) |
| constexpr uint32_t kWatchdogDefaultCpuLimit = 75; |
| constexpr uint32_t kWatchdogDefaultCpuWindow = 5 * 60 * 1000; // 5 minutes. |
| #else |
| constexpr uint32_t kWatchdogDefaultCpuLimit = 90; |
| constexpr uint32_t kWatchdogDefaultCpuWindow = 10 * 60 * 1000; // 10 minutes. |
| #endif |
| |
| // The default memory margin we give to our processes. This is used as as a |
| // constant to put on top of the trace buffers. |
| constexpr uint64_t kWatchdogDefaultMemorySlack = 32 * 1024 * 1024; // 32 MiB. |
| constexpr uint32_t kWatchdogDefaultMemoryWindow = 30 * 1000; // 30 seconds. |
| |
| inline void RunTaskWithWatchdogGuard(const std::function<void()>& task) { |
| // Maximum time a single task can take in a TaskRunner before the |
| // program suicides. |
| constexpr int64_t kWatchdogMillis = 30000; // 30s |
| |
| Watchdog::Timer handle = base::Watchdog::GetInstance()->CreateFatalTimer( |
| kWatchdogMillis, WatchdogCrashReason::kTaskRunnerHung); |
| task(); |
| |
| // Suppress unused variable warnings in the client library amalgamated build. |
| (void)kWatchdogDefaultCpuLimit; |
| (void)kWatchdogDefaultCpuWindow; |
| (void)kWatchdogDefaultMemorySlack; |
| (void)kWatchdogDefaultMemoryWindow; |
| } |
| |
| } // namespace base |
| } // namespace perfetto |
| |
| #endif // INCLUDE_PERFETTO_EXT_BASE_WATCHDOG_H_ |