| // Copyright 2013 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef COMPONENTS_BREAKPAD_BROWSER_CRASH_HANDLER_HOST_LINUX_H_ |
| #define COMPONENTS_BREAKPAD_BROWSER_CRASH_HANDLER_HOST_LINUX_H_ |
| |
| #include <sys/types.h> |
| |
| #include <string> |
| |
| #include "base/compiler_specific.h" |
| #include "base/files/file_path.h" |
| #include "base/memory/scoped_ptr.h" |
| #include "base/message_loop/message_loop.h" |
| #include "base/threading/sequenced_worker_pool.h" |
| |
| namespace base { |
| class Thread; |
| } |
| |
| namespace breakpad { |
| |
| struct BreakpadInfo; |
| |
| // This is the host for processes which run breakpad inside the sandbox on |
| // Linux or Android. We perform the crash dump from the browser because it |
| // allows us to be outside the sandbox. |
| // |
| // Processes signal that they need to be dumped by sending a datagram over a |
| // UNIX domain socket. All processes of the same type share the client end of |
| // this socket which is installed in their descriptor table before exec. |
| class CrashHandlerHostLinux : public base::MessageLoopForIO::Watcher, |
| public base::MessageLoop::DestructionObserver { |
| public: |
| CrashHandlerHostLinux(const std::string& process_type, |
| const base::FilePath& dumps_path, |
| bool upload); |
| virtual ~CrashHandlerHostLinux(); |
| |
| // Starts the uploader thread. Must be called immediately after creating the |
| // class. |
| void StartUploaderThread(); |
| |
| // Get the file descriptor which processes should be given in order to signal |
| // crashes to the browser. |
| int GetDeathSignalSocket() const { |
| return process_socket_; |
| } |
| |
| // MessagePumbLibevent::Watcher impl: |
| virtual void OnFileCanWriteWithoutBlocking(int fd) OVERRIDE; |
| virtual void OnFileCanReadWithoutBlocking(int fd) OVERRIDE; |
| |
| // MessageLoop::DestructionObserver impl: |
| virtual void WillDestroyCurrentMessageLoop() OVERRIDE; |
| |
| // Whether we are shutting down or not. |
| bool IsShuttingDown() const; |
| |
| private: |
| void Init(); |
| |
| // Do work on the FILE thread for OnFileCanReadWithoutBlocking(). |
| void WriteDumpFile(BreakpadInfo* info, |
| pid_t crashing_pid, |
| char* crash_context, |
| int signal_fd); |
| |
| // Continue OnFileCanReadWithoutBlocking()'s work on the IO thread. |
| void QueueCrashDumpTask(BreakpadInfo* info, int signal_fd); |
| |
| std::string process_type_; |
| base::FilePath dumps_path_; |
| bool upload_; |
| |
| int process_socket_; |
| int browser_socket_; |
| |
| base::MessageLoopForIO::FileDescriptorWatcher file_descriptor_watcher_; |
| scoped_ptr<base::Thread> uploader_thread_; |
| bool shutting_down_; |
| |
| // Unique sequence token so that writing crash dump won't be blocked |
| // by other tasks. |
| base::SequencedWorkerPool::SequenceToken worker_pool_token_; |
| |
| #if defined(ADDRESS_SANITIZER) |
| char* asan_report_str_; |
| #endif |
| |
| DISALLOW_COPY_AND_ASSIGN(CrashHandlerHostLinux); |
| }; |
| |
| } // namespace breakpad |
| |
| #endif // COMPONENTS_BREAKPAD_BROWSER_CRASH_HANDLER_HOST_LINUX_H_ |