mirror of
https://github.com/dart-lang/sdk
synced 2024-10-15 00:49:52 +00:00
14f7622ef4
Android is based on Linux, so most of the files were identical sans some subtle discrepancies caused by drift over time. This discrepancies were making code base harder to maintain and in fact were hiding bugs. For example, on Android eventhandler's implementation of timers which relied on passing timeout to `epoll_wait` contained a bug which was not present on Linux which used `timerfd` instead. TEST=ci and manual testing of Flutter app on Android device Fixes https://github.com/dart-lang/sdk/issues/54868 Cq-Include-Trybots: luci.dart.try:vm-aot-android-release-arm64c-try,vm-aot-android-release-arm_x64-try,vm-ffi-android-debug-arm-try,vm-ffi-android-debug-arm64c-try,vm-ffi-android-product-arm-try,vm-ffi-android-product-arm64c-try,vm-ffi-android-release-arm-try,vm-ffi-android-release-arm64c-try Bug: b/311165013 Change-Id: Ia166f69c14177ec34160805a0983eafee8ea65f6 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/350923 Reviewed-by: Martin Kustermann <kustermann@google.com> Commit-Queue: Slava Egorov <vegorov@google.com>
105 lines
2.2 KiB
C++
105 lines
2.2 KiB
C++
// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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#ifndef RUNTIME_BIN_THREAD_H_
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#define RUNTIME_BIN_THREAD_H_
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#include "platform/globals.h"
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namespace dart {
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namespace bin {
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class Thread;
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class Mutex;
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class Monitor;
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} // namespace bin
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} // namespace dart
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// Declare the OS-specific types ahead of defining the generic classes.
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#if defined(DART_USE_ABSL)
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#include "bin/thread_absl.h"
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#elif defined(DART_HOST_OS_FUCHSIA)
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#include "bin/thread_fuchsia.h"
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#elif defined(DART_HOST_OS_LINUX) || defined(DART_HOST_OS_ANDROID)
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#include "bin/thread_linux.h"
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#elif defined(DART_HOST_OS_MACOS)
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#include "bin/thread_macos.h"
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#elif defined(DART_HOST_OS_WINDOWS)
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#include "bin/thread_win.h"
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#else
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#error Unknown target os.
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#endif
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namespace dart {
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namespace bin {
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class Thread {
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public:
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static const ThreadId kInvalidThreadId;
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typedef void (*ThreadStartFunction)(uword parameter);
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// Start a thread running the specified function. Returns 0 if the
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// thread started successfully and a system specific error code if
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// the thread failed to start.
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static int Start(const char* name,
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ThreadStartFunction function,
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uword parameters);
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static intptr_t GetMaxStackSize();
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static ThreadId GetCurrentThreadId();
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static bool Compare(ThreadId a, ThreadId b);
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static void InitOnce();
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private:
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DISALLOW_ALLOCATION();
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DISALLOW_IMPLICIT_CONSTRUCTORS(Thread);
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};
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class Mutex {
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public:
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Mutex();
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~Mutex();
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void Lock();
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bool TryLock();
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void Unlock();
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private:
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MutexData data_;
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DISALLOW_COPY_AND_ASSIGN(Mutex);
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};
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class Monitor {
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public:
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enum WaitResult { kNotified, kTimedOut };
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static constexpr int64_t kNoTimeout = 0;
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Monitor();
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~Monitor();
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void Enter();
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void Exit();
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// Wait for notification or timeout.
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WaitResult Wait(int64_t millis);
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WaitResult WaitMicros(int64_t micros);
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// Notify waiting threads.
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void Notify();
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void NotifyAll();
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private:
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MonitorData data_; // OS-specific data.
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DISALLOW_COPY_AND_ASSIGN(Monitor);
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};
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} // namespace bin
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} // namespace dart
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#endif // RUNTIME_BIN_THREAD_H_
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