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| 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | |
| 2 // for details. All rights reserved. Use of this source code is governed by a | |
| 3 // BSD-style license that can be found in the LICENSE file. | |
| 4 | |
| 5 #ifndef PLATFORM_THREAD_H_ | |
| 6 #define PLATFORM_THREAD_H_ | |
| 7 | |
| 8 #include "platform/globals.h" | |
| 9 | |
| 10 // Declare the OS-specific types ahead of defining the generic classes. | |
| 11 #if defined(TARGET_OS_ANDROID) | |
| 12 #include "platform/thread_android.h" | |
| 13 #elif defined(TARGET_OS_LINUX) | |
| 14 #include "platform/thread_linux.h" | |
| 15 #elif defined(TARGET_OS_MACOS) | |
| 16 #include "platform/thread_macos.h" | |
| 17 #elif defined(TARGET_OS_WINDOWS) | |
| 18 #include "platform/thread_win.h" | |
| 19 #else | |
| 20 #error Unknown target os. | |
| 21 #endif | |
| 22 | |
| 23 namespace dart { | |
| 24 | |
| 25 class Thread { | |
| 26 public: | |
| 27 static ThreadLocalKey kUnsetThreadLocalKey; | |
| 28 static ThreadId kInvalidThreadId; | |
| 29 | |
| 30 typedef void (*ThreadStartFunction) (uword parameter); | |
| 31 | |
| 32 // Start a thread running the specified function. Returns 0 if the | |
| 33 // thread started successfuly and a system specific error code if | |
| 34 // the thread failed to start. | |
| 35 static int Start(ThreadStartFunction function, uword parameters); | |
| 36 | |
| 37 static ThreadLocalKey CreateThreadLocal(); | |
| 38 static void DeleteThreadLocal(ThreadLocalKey key); | |
| 39 static uword GetThreadLocal(ThreadLocalKey key) { | |
| 40 return ThreadInlineImpl::GetThreadLocal(key); | |
| 41 } | |
| 42 static void SetThreadLocal(ThreadLocalKey key, uword value); | |
| 43 static intptr_t GetMaxStackSize(); | |
| 44 static ThreadId GetCurrentThreadId(); | |
| 45 static bool Join(ThreadId id); | |
| 46 static intptr_t ThreadIdToIntPtr(ThreadId id); | |
| 47 static bool Compare(ThreadId a, ThreadId b); | |
| 48 static void GetThreadCpuUsage(ThreadId thread_id, int64_t* cpu_usage); | |
| 49 }; | |
| 50 | |
| 51 | |
| 52 class Mutex { | |
| 53 public: | |
| 54 Mutex(); | |
| 55 ~Mutex(); | |
| 56 | |
| 57 void Lock(); | |
| 58 bool TryLock(); | |
| 59 void Unlock(); | |
| 60 | |
| 61 private: | |
| 62 MutexData data_; | |
| 63 | |
| 64 DISALLOW_COPY_AND_ASSIGN(Mutex); | |
| 65 }; | |
| 66 | |
| 67 | |
| 68 class Monitor { | |
| 69 public: | |
| 70 enum WaitResult { | |
| 71 kNotified, | |
| 72 kTimedOut | |
| 73 }; | |
| 74 | |
| 75 static const int64_t kNoTimeout = 0; | |
| 76 | |
| 77 Monitor(); | |
| 78 ~Monitor(); | |
| 79 | |
| 80 void Enter(); | |
| 81 void Exit(); | |
| 82 | |
| 83 // Wait for notification or timeout. | |
| 84 WaitResult Wait(int64_t millis); | |
| 85 WaitResult WaitMicros(int64_t micros); | |
| 86 | |
| 87 // Notify waiting threads. | |
| 88 void Notify(); | |
| 89 void NotifyAll(); | |
| 90 | |
| 91 private: | |
| 92 MonitorData data_; // OS-specific data. | |
| 93 | |
| 94 DISALLOW_COPY_AND_ASSIGN(Monitor); | |
| 95 }; | |
| 96 | |
| 97 | |
| 98 } // namespace dart | |
| 99 | |
| 100 | |
| 101 #endif // PLATFORM_THREAD_H_ | |
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