johnmccutchan@google.com
919dc2d6eb
* Threads can only register and unregister themselves with ThreadInterrupter. * Profiler is no longer involved in interrupting threads. It's just a callback and the buffer. * Profiler operates lock free using an atomic operation to reserve sample in sample buffer. * Linux, Mac, and Windows done. R=asiva@google.com Review URL: https://codereview.chromium.org//109803002 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@31170 260f80e4-7a28-3924-810f-c04153c831b5
101 lines
2.2 KiB
C++
101 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 PLATFORM_THREAD_H_
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#define PLATFORM_THREAD_H_
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#include "platform/globals.h"
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// Declare the OS-specific types ahead of defining the generic classes.
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#if defined(TARGET_OS_ANDROID)
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#include "platform/thread_android.h"
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#elif defined(TARGET_OS_LINUX)
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#include "platform/thread_linux.h"
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#elif defined(TARGET_OS_MACOS)
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#include "platform/thread_macos.h"
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#elif defined(TARGET_OS_WINDOWS)
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#include "platform/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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class Thread {
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public:
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static ThreadLocalKey kUnsetThreadLocalKey;
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static 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 successfuly and a system specific error code if
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// the thread failed to start.
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static int Start(ThreadStartFunction function, uword parameters);
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static ThreadLocalKey CreateThreadLocal();
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static void DeleteThreadLocal(ThreadLocalKey key);
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static uword GetThreadLocal(ThreadLocalKey key) {
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return ThreadInlineImpl::GetThreadLocal(key);
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}
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static void SetThreadLocal(ThreadLocalKey key, uword value);
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static intptr_t GetMaxStackSize();
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static ThreadId GetCurrentThreadId();
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static intptr_t ThreadIdToIntPtr(ThreadId id);
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static bool Compare(ThreadId a, ThreadId b);
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static void GetThreadCpuUsage(ThreadId thread_id, int64_t* cpu_usage);
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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 {
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kNotified,
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kTimedOut
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};
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static const 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 dart
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#endif // PLATFORM_THREAD_H_
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