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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 VM_THREAD_H_ | |
| 6 #define VM_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 "vm/thread_android.h" | |
| 13 #elif defined(TARGET_OS_LINUX) | |
| 14 #include "vm/thread_linux.h" | |
| 15 #elif defined(TARGET_OS_MACOS) | |
| 16 #include "vm/thread_macos.h" | |
| 17 #elif defined(TARGET_OS_WINDOWS) | |
| 18 #include "vm/thread_win.h" | |
| 19 #else | |
| 20 #error Unknown target os. | |
| 21 #endif | |
| 22 | |
| 23 namespace dart { | |
| 24 | |
| 25 class Isolate; | |
| 26 | |
| 27 class Thread { | |
| 28 public: | |
| 29 static ThreadLocalKey kUnsetThreadLocalKey; | |
| 30 static ThreadId kInvalidThreadId; | |
| 31 | |
| 32 typedef void (*ThreadStartFunction) (uword parameter); | |
| 33 | |
| 34 // Start a thread running the specified function. Returns 0 if the | |
| 35 // thread started successfuly and a system specific error code if | |
| 36 // the thread failed to start. | |
| 37 static int Start(ThreadStartFunction function, uword parameters); | |
| 38 | |
| 39 static ThreadLocalKey CreateThreadLocal(); | |
| 40 static void DeleteThreadLocal(ThreadLocalKey key); | |
| 41 static uword GetThreadLocal(ThreadLocalKey key) { | |
| 42 return ThreadInlineImpl::GetThreadLocal(key); | |
| 43 } | |
| 44 static void SetThreadLocal(ThreadLocalKey key, uword value); | |
| 45 static intptr_t GetMaxStackSize(); | |
| 46 static ThreadId GetCurrentThreadId(); | |
| 47 static bool Join(ThreadId id); | |
| 48 static intptr_t ThreadIdToIntPtr(ThreadId id); | |
| 49 static bool Compare(ThreadId a, ThreadId b); | |
| 50 static void GetThreadCpuUsage(ThreadId thread_id, int64_t* cpu_usage); | |
| 51 }; | |
| 52 | |
| 53 | |
| 54 class Mutex { | |
| 55 public: | |
| 56 Mutex(); | |
| 57 ~Mutex(); | |
| 58 | |
| 59 void Lock(); | |
| 60 bool TryLock(); | |
| 61 void Unlock(); | |
| 62 | |
| 63 #if defined(DEBUG) | |
| 64 Isolate* Owner() const { return owner_; } | |
| 65 #endif // defined(DEBUG) | |
| 66 | |
| 67 private: | |
| 68 MutexData data_; | |
| 69 #if defined(DEBUG) | |
| 70 Isolate* owner_; | |
| 71 #endif // defined(DEBUG) | |
| 72 | |
| 73 DISALLOW_COPY_AND_ASSIGN(Mutex); | |
| 74 }; | |
| 75 | |
| 76 | |
| 77 class Monitor { | |
| 78 public: | |
| 79 enum WaitResult { | |
| 80 kNotified, | |
| 81 kTimedOut | |
| 82 }; | |
| 83 | |
| 84 static const int64_t kNoTimeout = 0; | |
| 85 | |
| 86 Monitor(); | |
| 87 ~Monitor(); | |
| 88 | |
| 89 void Enter(); | |
| 90 void Exit(); | |
| 91 | |
| 92 // Wait for notification or timeout. | |
| 93 WaitResult Wait(int64_t millis); | |
| 94 WaitResult WaitMicros(int64_t micros); | |
| 95 | |
| 96 // Notify waiting threads. | |
| 97 void Notify(); | |
| 98 void NotifyAll(); | |
| 99 | |
| 100 private: | |
| 101 MonitorData data_; // OS-specific data. | |
| 102 | |
| 103 DISALLOW_COPY_AND_ASSIGN(Monitor); | |
| 104 }; | |
| 105 | |
| 106 | |
| 107 } // namespace dart | |
| 108 | |
| 109 | |
| 110 #endif // VM_THREAD_H_ | |
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Chromium Code Reviews
Issue 796063006:
Rename Thread -> OSThread. (Closed)
Base URL: http://dart.googlecode.com/svn/branches/bleeding_edge/dart/