| // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| #include "platform/globals.h" |
| #if defined(TARGET_OS_ANDROID) |
| |
| #include "vm/signal_handler.h" |
| #include "vm/thread_interrupter.h" |
| |
| namespace dart { |
| |
| DECLARE_FLAG(bool, thread_interrupter); |
| DECLARE_FLAG(bool, trace_thread_interrupter); |
| |
| class ThreadInterrupterAndroid : public AllStatic { |
| public: |
| static void ThreadInterruptSignalHandler(int signal, siginfo_t* info, |
| void* context_) { |
| if (signal != SIGPROF) { |
| return; |
| } |
| InterruptableThreadState* state = ThreadInterrupter::CurrentThreadState(); |
| if ((state == NULL) || (state->callback == NULL)) { |
| // No interrupter state or callback. |
| return; |
| } |
| ASSERT(Thread::Compare(state->id, Thread::GetCurrentThreadId())); |
| } |
| }; |
| |
| |
| void ThreadInterrupter::InterruptThread(InterruptableThreadState* state) { |
| if (FLAG_trace_thread_interrupter) { |
| OS::Print("ThreadInterrupter interrupting %p\n", |
| reinterpret_cast<void*>(state->id)); |
| } |
| pthread_kill(state->id, SIGPROF); |
| } |
| |
| |
| void ThreadInterrupter::InstallSignalHandler() { |
| SignalHandler::Install( |
| ThreadInterrupterAndroid::ThreadInterruptSignalHandler); |
| } |
| |
| |
| } // namespace dart |
| |
| #endif // defined(TARGET_OS_ANDROID) |