// Copyright 2018 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_TEST_SCOPED_GUARDED_PAGE_ #define CRASHPAD_TEST_SCOPED_GUARDED_PAGE_ #include "base/macros.h" namespace crashpad { namespace test { //! \brief A RAII object that allocates a read-write page with an inacessible //! page following it. //! //! Upon construction, a mapping will be created. Failure to create the mapping //! is fatal. On destruction, the mapping is freed. //! //! This object should not be used in multi-threded contexts, the POSIX //! implementation can not be made thread-safe. class ScopedGuardedPage { public: ScopedGuardedPage(); ~ScopedGuardedPage(); //! \brief Returns the address of the read-write page. //! //! \return The address of the read-write page. void* Pointer() const { return ptr_; } private: void* ptr_; DISALLOW_COPY_AND_ASSIGN(ScopedGuardedPage); }; } // namespace test } // namespace crashpad #endif // CRASHPAD_TEST_SCOPED_GUARDED_PAGE_