| // Copyright 2017 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_SNAPSHOT_LINUX_MEMORY_SNAPSHOT_LINUX_H_ |
| #define CRASHPAD_SNAPSHOT_LINUX_MEMORY_SNAPSHOT_LINUX_H_ |
| |
| #include <stddef.h> |
| #include <stdint.h> |
| |
| #include "base/macros.h" |
| #include "snapshot/linux/process_reader.h" |
| #include "snapshot/memory_snapshot.h" |
| #include "util/linux/address_types.h" |
| #include "util/misc/initialization_state_dcheck.h" |
| |
| namespace crashpad { |
| namespace internal { |
| |
| //! \brief A MemorySnapshot of a memory region in a process on the running |
| //! system, when the system runs Linux. |
| class MemorySnapshotLinux final : public MemorySnapshot { |
| public: |
| MemorySnapshotLinux(); |
| ~MemorySnapshotLinux() override; |
| |
| //! \brief Initializes the object. |
| //! |
| //! Memory is read lazily. No attempt is made to read the memory snapshot data |
| //! until Read() is called, and the memory snapshot data is discared when |
| //! Read() returns. |
| //! |
| //! \param[in] process_reader A reader for the process being snapshotted. |
| //! \param[in] address The base address of the memory region to snapshot, in |
| //! the snapshot process’ address space. |
| //! \param[in] size The size of the memory region to snapshot. |
| void Initialize(ProcessReader* process_reader, |
| LinuxVMAddress address, |
| size_t size); |
| |
| // MemorySnapshot: |
| |
| uint64_t Address() const override; |
| size_t Size() const override; |
| bool Read(Delegate* delegate) const override; |
| const MemorySnapshot* MergeWithOtherSnapshot( |
| const MemorySnapshot* other) const override; |
| |
| private: |
| template <class T> |
| friend const MemorySnapshot* MergeWithOtherSnapshotImpl( |
| const T* self, |
| const MemorySnapshot* other); |
| |
| ProcessReader* process_reader_; // weak |
| uint64_t address_; |
| size_t size_; |
| InitializationStateDcheck initialized_; |
| |
| DISALLOW_COPY_AND_ASSIGN(MemorySnapshotLinux); |
| }; |
| |
| } // namespace internal |
| } // namespace crashpad |
| |
| #endif // CRASHPAD_SNAPSHOT_LINUX_MEMORY_SNAPSHOT_LINUX_H_ |