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comparison: ipc/chromium/src/base/worker_pool_mac.mm
ipc/chromium/src/base/worker_pool_mac.mm
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| 1 // Copyright (c) 2008 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "base/worker_pool.h" | |
| 6 | |
| 7 #import <Foundation/Foundation.h> | |
| 8 | |
| 9 #include "base/logging.h" | |
| 10 #import "base/singleton_objc.h" | |
| 11 #include "base/task.h" | |
| 12 | |
| 13 // TaskOperation adapts Task->Run() for use in an NSOperationQueue. | |
| 14 @interface TaskOperation : NSOperation { | |
| 15 @private | |
| 16 Task* task_; // (strong) | |
| 17 } | |
| 18 | |
| 19 // Returns an autoreleased instance of TaskOperation. See -initWithTask: for | |
| 20 // details. | |
| 21 + (id)taskOperationWithTask:(Task*)task; | |
| 22 | |
| 23 // Designated initializer. |task| is adopted as the Task* whose Run method | |
| 24 // this operation will call when executed. | |
| 25 - (id)initWithTask:(Task*)task; | |
| 26 | |
| 27 @end | |
| 28 | |
| 29 @implementation TaskOperation | |
| 30 | |
| 31 + (id)taskOperationWithTask:(Task*)task { | |
| 32 return [[[TaskOperation alloc] initWithTask:task] autorelease]; | |
| 33 } | |
| 34 | |
| 35 - (id)init { | |
| 36 return [self initWithTask:NULL]; | |
| 37 } | |
| 38 | |
| 39 - (id)initWithTask:(Task*)task { | |
| 40 if ((self = [super init])) { | |
| 41 task_ = task; | |
| 42 } | |
| 43 return self; | |
| 44 } | |
| 45 | |
| 46 - (void)main { | |
| 47 DCHECK(task_) << "-[TaskOperation main] called with no task"; | |
| 48 task_->Run(); | |
| 49 delete task_; | |
| 50 task_ = NULL; | |
| 51 } | |
| 52 | |
| 53 - (void)dealloc { | |
| 54 DCHECK(!task_) << "-[TaskOperation dealloc] called on unused TaskOperation"; | |
| 55 delete task_; | |
| 56 [super dealloc]; | |
| 57 } | |
| 58 | |
| 59 @end | |
| 60 | |
| 61 bool WorkerPool::PostTask(const tracked_objects::Location& from_here, | |
| 62 Task* task, bool task_is_slow) { | |
| 63 // Ignore |task_is_slow|, it doesn't map directly to any tunable aspect of | |
| 64 // an NSOperation. | |
| 65 | |
| 66 task->SetBirthPlace(from_here); | |
| 67 | |
| 68 NSOperationQueue* operation_queue = SingletonObjC<NSOperationQueue>::get(); | |
| 69 [operation_queue addOperation:[TaskOperation taskOperationWithTask:task]]; | |
| 70 | |
| 71 return true; | |
| 72 } |
