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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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_SEQUENCED_TASK_RUNNER_H_ | 5 #ifndef BASE_SEQUENCED_TASK_RUNNER_H_ |
6 #define BASE_SEQUENCED_TASK_RUNNER_H_ | 6 #define BASE_SEQUENCED_TASK_RUNNER_H_ |
7 | 7 |
8 #include "base/base_export.h" | 8 #include "base/base_export.h" |
9 #include "base/callback.h" | 9 #include "base/callback.h" |
10 #include "base/sequenced_task_runner_helpers.h" | 10 #include "base/sequenced_task_runner_helpers.h" |
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103 // A simple corollary is that posting a task as non-nestable can | 103 // A simple corollary is that posting a task as non-nestable can |
104 // only delay when the task gets run. That is, posting a task as | 104 // only delay when the task gets run. That is, posting a task as |
105 // non-nestable may not affect when the task gets run, or it could | 105 // non-nestable may not affect when the task gets run, or it could |
106 // make it run later than it normally would, but it won't make it | 106 // make it run later than it normally would, but it won't make it |
107 // run earlier than it normally would. | 107 // run earlier than it normally would. |
108 | 108 |
109 // TODO(akalin): Get rid of the boolean return value for the methods | 109 // TODO(akalin): Get rid of the boolean return value for the methods |
110 // below. | 110 // below. |
111 | 111 |
112 bool PostNonNestableTask(const tracked_objects::Location& from_here, | 112 bool PostNonNestableTask(const tracked_objects::Location& from_here, |
113 Closure task); | 113 OnceClosure task); |
114 | 114 |
115 virtual bool PostNonNestableDelayedTask( | 115 virtual bool PostNonNestableDelayedTask( |
116 const tracked_objects::Location& from_here, | 116 const tracked_objects::Location& from_here, |
117 Closure task, | 117 OnceClosure task, |
118 base::TimeDelta delay) = 0; | 118 base::TimeDelta delay) = 0; |
119 | 119 |
120 // Submits a non-nestable task to delete the given object. Returns | 120 // Submits a non-nestable task to delete the given object. Returns |
121 // true if the object may be deleted at some point in the future, | 121 // true if the object may be deleted at some point in the future, |
122 // and false if the object definitely will not be deleted. | 122 // and false if the object definitely will not be deleted. |
123 template <class T> | 123 template <class T> |
124 bool DeleteSoon(const tracked_objects::Location& from_here, | 124 bool DeleteSoon(const tracked_objects::Location& from_here, |
125 const T* object) { | 125 const T* object) { |
126 return DeleteOrReleaseSoonInternal(from_here, &DeleteHelper<T>::DoDelete, | 126 return DeleteOrReleaseSoonInternal(from_here, &DeleteHelper<T>::DoDelete, |
127 object); | 127 object); |
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158 if (ptr) | 158 if (ptr) |
159 task_runner_->DeleteSoon(FROM_HERE, ptr); | 159 task_runner_->DeleteSoon(FROM_HERE, ptr); |
160 } | 160 } |
161 | 161 |
162 scoped_refptr<SequencedTaskRunner> task_runner_; | 162 scoped_refptr<SequencedTaskRunner> task_runner_; |
163 }; | 163 }; |
164 | 164 |
165 } // namespace base | 165 } // namespace base |
166 | 166 |
167 #endif // BASE_SEQUENCED_TASK_RUNNER_H_ | 167 #endif // BASE_SEQUENCED_TASK_RUNNER_H_ |
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