toolkit/crashreporter/google-breakpad/src/client/mac/crash_generation/crash_generation_server.h
author Ted Mielczarek <ted@mielczarek.org>
Wed, 27 Jan 2016 09:39:53 -0500
changeset 319829 62a0d8c93da2ca24f3f87642a2989c4741f214d4
parent 318673 9087dd73457a98ccf303d0e2613135f31fc172c9
permissions -rw-r--r--
bug 1069556 - sync to Breakpad c53ed143108948eb7e2d7ee77dc8c0d92050ce7c. r=glandium, benwa This commit contains a few things: * Update our copy of google-breakpad to upstream c53ed143108948eb7e2d7ee77dc8c0d92050ce7c * Get rid of all but one local patch, fold a few related local patches into one * Misc build fixup to sync with upstream--adding a few new moz.build files, source files * The final bits of unhooking Breakpad from the profiler: ** Revert to only building toolkit/crashreporter if MOZ_CRASHREPORTER. ** Stop building bits of Breakpad that we only needed for the profiler. ** Remove a few bits of profiler code that were used to interface with Breakpad. ** Remove toolkit/crashreporter/breakpad-logging, which was only used to suppress Breakpad logging for the in-process stackwalker. * Upstream removed their Android-compat sys/ucontext.h because the Android NDK added it, but the bionic we're using for Gonk builds is too old, so add a copy of the previous version of those files to toolkit/crashreporter/gonk-include to keep Gonk building. * Consolidate moz.build files under toolkit/crashreporter/google-breakpad/client/linux

// Copyright (c) 2010 Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
//     * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
//     * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

#ifndef GOOGLE_BREAKPAD_CLIENT_MAC_CRASH_GENERATION_CRASH_GENERATION_SERVER_H_
#define GOOGLE_BREAKPAD_CLIENT_MAC_CRASH_GENERATION_CRASH_GENERATION_SERVER_H_

#include <stdint.h>

#include <string>

#include "common/mac/MachIPC.h"

namespace google_breakpad {

class ClientInfo;

// Messages the server can read via its mach port
enum {
  kDumpRequestMessage     = 1,
  kAcknowledgementMessage = 2,
  kQuitMessage            = 3
};

// Exception details sent by the client when requesting a dump.
struct ExceptionInfo {
  int32_t exception_type;
  int32_t exception_code;
  int32_t exception_subcode;
};

class CrashGenerationServer {
 public:
  // WARNING: callbacks may be invoked on a different thread
  // than that which creates the CrashGenerationServer.  They must
  // be thread safe.
  typedef void (*OnClientDumpRequestCallback)(void *context,
                                              const ClientInfo &client_info,
                                              const std::string &file_path);

  typedef void (*OnClientExitingCallback)(void *context,
                                          const ClientInfo &client_info);
  // If a FilterCallback returns false, the dump will not be written.
  typedef bool (*FilterCallback)(void *context);

  // Create an instance with the given parameters.
  //
  // mach_port_name: Named server port to listen on.
  // filter: Callback for a client to cancel writing a dump.
  // filter_context: Context for the filter callback.
  // dump_callback: Callback for a client crash dump request.
  // dump_context: Context for client crash dump request callback.
  // exit_callback: Callback for client process exit.
  // exit_context: Context for client exit callback.
  // generate_dumps: Whether to automatically generate dumps.
  //     Client code of this class might want to generate dumps explicitly
  //     in the crash dump request callback. In that case, false can be
  //     passed for this parameter.
  // dump_path: Path for generating dumps; required only if true is
  //     passed for generateDumps parameter; NULL can be passed otherwise.
  CrashGenerationServer(const char *mach_port_name,
                        FilterCallback filter,
                        void *filter_context,
                        OnClientDumpRequestCallback dump_callback,
                        void *dump_context,
                        OnClientExitingCallback exit_callback,
                        void *exit_context,
                        bool generate_dumps,
                        const std::string &dump_path);

  ~CrashGenerationServer();

  // Perform initialization steps needed to start listening to clients.
  //
  // Return true if initialization is successful; false otherwise.
  bool Start();

  // Stop the server.
  bool Stop();

 private:
  // Return a unique filename at which a minidump can be written.
  bool MakeMinidumpFilename(std::string &outFilename);

  // Loop reading client messages and responding to them until
  // a quit message is received.
  static void *WaitForMessages(void *server);

  // Wait for a single client message and respond to it. Returns false
  // if a quit message was received or if an error occurred.
  bool WaitForOneMessage();

  FilterCallback filter_;
  void *filter_context_;

  OnClientDumpRequestCallback dump_callback_;
  void *dump_context_;

  OnClientExitingCallback exit_callback_;
  void *exit_context_;

  bool generate_dumps_;

  std::string dump_dir_;

  bool started_;

  // The mach port that receives requests to dump from child processes.
  ReceivePort receive_port_;

  // The name of the mach port. Stored so the Stop method can message
  // the background thread to shut it down.
  std::string mach_port_name_;

  // The thread that waits on the receive port.
  pthread_t server_thread_;

  // Disable copy constructor and operator=.
  CrashGenerationServer(const CrashGenerationServer&);
  CrashGenerationServer& operator=(const CrashGenerationServer&);
};

}  // namespace google_breakpad

#endif  // GOOGLE_BREAKPAD_CLIENT_MAC_CRASH_GENERATION_CRASH_GENERATION_SERVER_H_