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| 1 // Copyright 2014 The Crashpad Authors. All rights reserved. | 1 // Copyright 2014 The Crashpad Authors. All rights reserved. |
| 2 // | 2 // |
| 3 // Licensed under the Apache License, Version 2.0 (the "License"); | 3 // Licensed under the Apache License, Version 2.0 (the "License"); |
| 4 // you may not use this file except in compliance with the License. | 4 // you may not use this file except in compliance with the License. |
| 5 // You may obtain a copy of the License at | 5 // You may obtain a copy of the License at |
| 6 // | 6 // |
| 7 // http://www.apache.org/licenses/LICENSE-2.0 | 7 // http://www.apache.org/licenses/LICENSE-2.0 |
| 8 // | 8 // |
| 9 // Unless required by applicable law or agreed to in writing, software | 9 // Unless required by applicable law or agreed to in writing, software |
| 10 // distributed under the License is distributed on an "AS IS" BASIS, | 10 // distributed under the License is distributed on an "AS IS" BASIS, |
| 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 12 // See the License for the specific language governing permissions and | 12 // See the License for the specific language governing permissions and |
| 13 // limitations under the License. | 13 // limitations under the License. |
| 14 | 14 |
| 15 #ifndef CRASHPAD_UTIL_MACH_SCOPED_TASK_SUSPEND_H_ | 15 #ifndef CRASHPAD_UTIL_MACH_SCOPED_TASK_SUSPEND_H_ |
| 16 #define CRASHPAD_UTIL_MACH_SCOPED_TASK_SUSPEND_H_ | 16 #define CRASHPAD_UTIL_MACH_SCOPED_TASK_SUSPEND_H_ |
| 17 | 17 |
| 18 #include <mach/mach.h> | 18 #include <mach/mach.h> |
| 19 | 19 |
| 20 #include "base/basictypes.h" | 20 #include "base/macros.h" |
| 21 | 21 |
| 22 namespace crashpad { | 22 namespace crashpad { |
| 23 | 23 |
| 24 //! \brief Manages the suspension of another task. | 24 //! \brief Manages the suspension of another task. |
| 25 //! | 25 //! |
| 26 //! While an object of this class exists, the other task will be suspended. Once | 26 //! While an object of this class exists, the other task will be suspended. Once |
| 27 //! the object is destroyed, the other task will become eligible for resumption. | 27 //! the object is destroyed, the other task will become eligible for resumption. |
| 28 //! Note that suspensions are counted, and the task will not actually resume | 28 //! Note that suspensions are counted, and the task will not actually resume |
| 29 //! unless its suspend count drops to 0. | 29 //! unless its suspend count drops to 0. |
| 30 //! | 30 //! |
| 31 //! Callers should not attempt to suspend the current task (`mach_task_self()`). | 31 //! Callers should not attempt to suspend the current task (`mach_task_self()`). |
| 32 class ScopedTaskSuspend { | 32 class ScopedTaskSuspend { |
| 33 public: | 33 public: |
| 34 explicit ScopedTaskSuspend(task_t task); | 34 explicit ScopedTaskSuspend(task_t task); |
| 35 ~ScopedTaskSuspend(); | 35 ~ScopedTaskSuspend(); |
| 36 | 36 |
| 37 private: | 37 private: |
| 38 task_t task_; | 38 task_t task_; |
| 39 | 39 |
| 40 DISALLOW_COPY_AND_ASSIGN(ScopedTaskSuspend); | 40 DISALLOW_COPY_AND_ASSIGN(ScopedTaskSuspend); |
| 41 }; | 41 }; |
| 42 | 42 |
| 43 } // namespace crashpad | 43 } // namespace crashpad |
| 44 | 44 |
| 45 #endif // CRASHPAD_UTIL_MACH_SCOPED_TASK_SUSPEND_H_ | 45 #endif // CRASHPAD_UTIL_MACH_SCOPED_TASK_SUSPEND_H_ |
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