/thirdparty/breakpad/client/mac/crash_generation/crash_generation_server.cc
http://github.com/tomahawk-player/tomahawk · C++ · 160 lines · 106 code · 21 blank · 33 comment · 22 complexity · 58cc655ea9a0a3cfcf676a8a280cc5bf MD5 · raw file
- // 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
- // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- #include "client/mac/crash_generation/crash_generation_server.h"
- #include "client/mac/crash_generation/client_info.h"
- #include "client/mac/handler/minidump_generator.h"
- #include "common/mac/scoped_task_suspend-inl.h"
- namespace google_breakpad {
- CrashGenerationServer::CrashGenerationServer(
- const char *mach_port_name,
- OnClientDumpRequestCallback dump_callback,
- void *dump_context,
- OnClientExitingCallback exit_callback,
- void *exit_context,
- bool generate_dumps,
- const std::string &dump_path)
- : dump_callback_(dump_callback),
- dump_context_(dump_context),
- exit_callback_(exit_callback),
- exit_context_(exit_context),
- generate_dumps_(generate_dumps),
- dump_dir_(dump_path.empty() ? "/tmp" : dump_path),
- started_(false),
- receive_port_(mach_port_name),
- mach_port_name_(mach_port_name) {
- }
- CrashGenerationServer::~CrashGenerationServer() {
- if (started_)
- Stop();
- }
- bool CrashGenerationServer::Start() {
- int thread_create_result = pthread_create(&server_thread_, NULL,
- &WaitForMessages, this);
- started_ = thread_create_result == 0;
- return started_;
- }
- bool CrashGenerationServer::Stop() {
- if (!started_)
- return false;
- // Send a quit message to the background thread, and then join it.
- MachPortSender sender(mach_port_name_.c_str());
- MachSendMessage quit_message(kQuitMessage);
- const mach_msg_timeout_t kSendTimeoutMs = 2 * 1000;
- kern_return_t result = sender.SendMessage(quit_message, kSendTimeoutMs);
- if (result == KERN_SUCCESS) {
- int thread_join_result = pthread_join(server_thread_, NULL);
- started_ = thread_join_result != 0;
- }
- return !started_;
- }
- // static
- void *CrashGenerationServer::WaitForMessages(void *server) {
- CrashGenerationServer *self =
- reinterpret_cast<CrashGenerationServer*>(server);
- while (self->WaitForOneMessage()) {}
- return NULL;
- }
- bool CrashGenerationServer::WaitForOneMessage() {
- MachReceiveMessage message;
- kern_return_t result = receive_port_.WaitForMessage(&message,
- MACH_MSG_TIMEOUT_NONE);
- if (result == KERN_SUCCESS) {
- switch (message.GetMessageID()) {
- case kDumpRequestMessage: {
- ExceptionInfo &info = (ExceptionInfo &)*message.GetData();
-
- mach_port_t remote_task = message.GetTranslatedPort(0);
- mach_port_t crashing_thread = message.GetTranslatedPort(1);
- mach_port_t handler_thread = message.GetTranslatedPort(2);
- mach_port_t ack_port = message.GetTranslatedPort(3);
- pid_t remote_pid = -1;
- pid_for_task(remote_task, &remote_pid);
- ClientInfo client(remote_pid);
- bool result;
- std::string dump_path;
- if (generate_dumps_) {
- ScopedTaskSuspend suspend(remote_task);
- MinidumpGenerator generator(remote_task, handler_thread);
- dump_path = generator.UniqueNameInDirectory(dump_dir_, NULL);
-
- if (info.exception_type && info.exception_code) {
- generator.SetExceptionInformation(info.exception_type,
- info.exception_code,
- info.exception_subcode,
- crashing_thread);
- }
- result = generator.Write(dump_path.c_str());
- } else {
- result = true;
- }
- if (result && dump_callback_) {
- dump_callback_(dump_context_, client, dump_path);
- }
- // TODO(ted): support a way for the client to send additional data,
- // perhaps with a callback so users of the server can read the data
- // themselves?
-
- if (ack_port != MACH_PORT_DEAD && ack_port != MACH_PORT_NULL) {
- MachPortSender sender(ack_port);
- MachSendMessage ack_message(kAcknowledgementMessage);
- const mach_msg_timeout_t kSendTimeoutMs = 2 * 1000;
- sender.SendMessage(ack_message, kSendTimeoutMs);
- }
- if (exit_callback_) {
- exit_callback_(exit_context_, client);
- }
- break;
- }
- case kQuitMessage:
- return false;
- }
- } else { // result != KERN_SUCCESS
- return false;
- }
- return true;
- }
- } // namespace google_breakpad