| OLD | NEW |
| 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef BASE_TASK_H_ | 5 #ifndef BASE_TASK_H_ |
| 6 #define BASE_TASK_H_ | 6 #define BASE_TASK_H_ |
| 7 #pragma once | 7 #pragma once |
| 8 | 8 |
| 9 #include "base/base_api.h" | 9 #include "base/base_export.h" |
| 10 #include "base/debug/alias.h" | 10 #include "base/debug/alias.h" |
| 11 #include "base/memory/raw_scoped_refptr_mismatch_checker.h" | 11 #include "base/memory/raw_scoped_refptr_mismatch_checker.h" |
| 12 #include "base/memory/weak_ptr.h" | 12 #include "base/memory/weak_ptr.h" |
| 13 #include "base/tracked.h" | 13 #include "base/tracked.h" |
| 14 #include "base/tuple.h" | 14 #include "base/tuple.h" |
| 15 | 15 |
| 16 namespace base { | 16 namespace base { |
| 17 const size_t kDeadTask = 0xDEAD7A53; | 17 const size_t kDeadTask = 0xDEAD7A53; |
| 18 } | 18 } |
| 19 | 19 |
| 20 // Task ------------------------------------------------------------------------ | 20 // Task ------------------------------------------------------------------------ |
| 21 // | 21 // |
| 22 // A task is a generic runnable thingy, usually used for running code on a | 22 // A task is a generic runnable thingy, usually used for running code on a |
| 23 // different thread or for scheduling future tasks off of the message loop. | 23 // different thread or for scheduling future tasks off of the message loop. |
| 24 | 24 |
| 25 class BASE_API Task : public tracked_objects::Tracked { | 25 class BASE_EXPORT Task : public tracked_objects::Tracked { |
| 26 public: | 26 public: |
| 27 Task(); | 27 Task(); |
| 28 virtual ~Task(); | 28 virtual ~Task(); |
| 29 | 29 |
| 30 // Tasks are automatically deleted after Run is called. | 30 // Tasks are automatically deleted after Run is called. |
| 31 virtual void Run() = 0; | 31 virtual void Run() = 0; |
| 32 }; | 32 }; |
| 33 | 33 |
| 34 class BASE_API CancelableTask : public Task { | 34 class BASE_EXPORT CancelableTask : public Task { |
| 35 public: | 35 public: |
| 36 CancelableTask(); | 36 CancelableTask(); |
| 37 virtual ~CancelableTask(); | 37 virtual ~CancelableTask(); |
| 38 | 38 |
| 39 // Not all tasks support cancellation. | 39 // Not all tasks support cancellation. |
| 40 virtual void Cancel() = 0; | 40 virtual void Cancel() = 0; |
| 41 }; | 41 }; |
| 42 | 42 |
| 43 // Scoped Factories ------------------------------------------------------------ | 43 // Scoped Factories ------------------------------------------------------------ |
| 44 // | 44 // |
| (...skipping 498 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 543 const C& c, const D& d, const E& e, const F& f, | 543 const C& c, const D& d, const E& e, const F& f, |
| 544 const G& g, const H& h) { | 544 const G& g, const H& h) { |
| 545 return new RunnableFunction<Function, Tuple8<A, B, C, D, E, F, G, H> >( | 545 return new RunnableFunction<Function, Tuple8<A, B, C, D, E, F, G, H> >( |
| 546 function, MakeTuple(a, b, c, d, e, f, g, h)); | 546 function, MakeTuple(a, b, c, d, e, f, g, h)); |
| 547 } | 547 } |
| 548 | 548 |
| 549 namespace base { | 549 namespace base { |
| 550 | 550 |
| 551 // ScopedTaskRunner is akin to scoped_ptr for Tasks. It ensures that the Task | 551 // ScopedTaskRunner is akin to scoped_ptr for Tasks. It ensures that the Task |
| 552 // is executed and deleted no matter how the current scope exits. | 552 // is executed and deleted no matter how the current scope exits. |
| 553 class BASE_API ScopedTaskRunner { | 553 class BASE_EXPORT ScopedTaskRunner { |
| 554 public: | 554 public: |
| 555 // Takes ownership of the task. | 555 // Takes ownership of the task. |
| 556 explicit ScopedTaskRunner(Task* task); | 556 explicit ScopedTaskRunner(Task* task); |
| 557 ~ScopedTaskRunner(); | 557 ~ScopedTaskRunner(); |
| 558 | 558 |
| 559 Task* Release(); | 559 Task* Release(); |
| 560 | 560 |
| 561 private: | 561 private: |
| 562 Task* task_; | 562 Task* task_; |
| 563 | 563 |
| (...skipping 34 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 598 Task* task_; | 598 Task* task_; |
| 599 bool* should_leak_task_; | 599 bool* should_leak_task_; |
| 600 static bool kTaskLeakingDefault; | 600 static bool kTaskLeakingDefault; |
| 601 }; | 601 }; |
| 602 | 602 |
| 603 } // namespace subtle | 603 } // namespace subtle |
| 604 | 604 |
| 605 } // namespace base | 605 } // namespace base |
| 606 | 606 |
| 607 #endif // BASE_TASK_H_ | 607 #endif // BASE_TASK_H_ |
| OLD | NEW |