| // Copyright 2014 The Crashpad Authors. All rights reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #ifndef CRASHPAD_UTIL_MISC_SCOPED_FORBID_RETURN_H_ |
| #define CRASHPAD_UTIL_MISC_SCOPED_FORBID_RETURN_H_ |
| |
| #include "base/macros.h" |
| |
| namespace crashpad { |
| |
| //! \brief Asserts that a scope must not be exited while unsafe. |
| //! |
| //! An object of this class has two states: armed and disarmed. A disarmed |
| //! object is a harmless no-op. An armed object will abort execution upon |
| //! destruction. Newly-constructed objects are armed by default. |
| //! |
| //! These objects may be used to assert that a scope not be exited while it is |
| //! unsafe to do so. If it ever becomes safe to leave such a scope, an object |
| //! can be disarmed. |
| class ScopedForbidReturn { |
| public: |
| ScopedForbidReturn() : armed_(true) {} |
| ~ScopedForbidReturn(); |
| |
| //! \brief Arms the object so that it will abort execution when destroyed. |
| //! |
| //! The most recent call to Arm() or Disarm() sets the state of the object. |
| void Arm() { armed_ = true; } |
| |
| //! \brief Arms the object so that it will abort execution when destroyed. |
| //! |
| //! The most recent call to Arm() or Disarm() sets the state of the object. |
| void Disarm() { armed_ = false; } |
| |
| private: |
| bool armed_; |
| |
| DISALLOW_COPY_AND_ASSIGN(ScopedForbidReturn); |
| }; |
| |
| } // namespace crashpad |
| |
| #endif // CRASHPAD_UTIL_MISC_SCOPED_FORBID_RETURN_H_ |