crashpad/client/crashpad_client.h
Mark Mentovai 29cdc74579 CrashpadClient::StartHandler(): accept database, url, and annotations arguments.
This makes it easier for clients to start the Crashpad handler, instead
of requiring them to know how to construct arguments for the handler
themselves. Note in the TEST that -a is no longer required.

TEST=run_with_crashpad --handler crashpad_handler \
         --database=/tmp/crashpad_db \
         --url=https://clients2.google.com/cr/staging_report \
         --annotation=prod=crashpad \
         --annotation=ver=0.7.0 \
         crashy_program

R=rsesek@chromium.org

Review URL: https://codereview.chromium.org/1001993002
2015-03-12 14:28:19 -04:00

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// Copyright 2014 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_CLIENT_CRASHPAD_CLIENT_H_
#define CRASHPAD_CLIENT_CRASHPAD_CLIENT_H_
#include <map>
#include <string>
#include <vector>
#include "base/basictypes.h"
#include "base/files/file_path.h"
#include "build/build_config.h"
#if defined(OS_MACOSX)
#include "base/mac/scoped_mach_port.h"
#endif
namespace crashpad {
//! \brief The primary interface for an application to have Crashpad monitor
//! it for crashes.
class CrashpadClient {
public:
CrashpadClient();
~CrashpadClient();
//! \brief Starts a Crashpad handler process, performing any necessary
//! handshake to configure it.
//!
//! This method does not actually direct any crashes to the Crashpad handler,
//! because there may be alternative ways to use an existing Crashpad handler
//! without having to start one. To begin directing crashes to the handler,
//! started by this method, call UseHandler() after this method returns
//! successfully.
//!
//! On Mac OS X, this method starts a Crashpad handler and obtains a Mach
//! send right corresponding to a receive right held by the handler process.
//! The handler process runs an exception server on this port.
//!
//! \param[in] handler The path to a Crashpad handler executable.
//! \param[in] database The path to a Crashpad database. The handler will be
//! started with this path as its `--database` argument.
//! \param[in] url The URL of an upload server. The handler will be started
//! with this URL as its `--url` argument.
//! \param[in] annotations Process annotations to set in each crash report.
//! The handler will be started with an `--annotation` argument for each
//! element in this map.
//! \param[in] arguments Additional arguments to pass to the Crashpad handler.
//! Arguments passed in other parameters and arguments required to perform
//! the handshake are the responsibility of this method, and must not be
//! specified in this parameter.
//!
//! \return `true` on success, `false` on failure with a message logged.
bool StartHandler(const base::FilePath& handler,
const base::FilePath& database,
const std::string& url,
const std::map<std::string, std::string>& annotations,
const std::vector<std::string>& arguments);
//! \brief Configures the process to direct its crashes to a Crashpad handler.
//!
//! The Crashpad handler must previously have been started by StartHandler().
//!
//! On Mac OS X, this method sets the tasks exception port for `EXC_CRASH`,
//! `EXC_RESOURCE`, and `EXC_GUARD` exceptions to the Mach send right obtained
//! by StartHandler(). The handler will be installed with behavior
//! `EXCEPTION_STATE_IDENTITY | MACH_EXCEPTION_CODES` and thread state flavor
//! `MACHINE_THREAD_STATE`. Exception ports are inherited, so a Crashpad
//! handler chosen by UseHandler() will remain the handler for any child
//! processes created after UseHandler() is called. Child processes do not
//! need to call StartHandler() or UseHandler() or be aware of Crashpad in any
//! way. The Crashpad handler will receive crashes from child processes that
//! have inherited it as their exception handler even after the process that
//! called StartHandler() exits.
//!
//! \return `true` on success, `false` on failure with a message logged.
bool UseHandler();
private:
#if defined(OS_MACOSX)
base::mac::ScopedMachSendRight exception_port_;
#endif
DISALLOW_COPY_AND_ASSIGN(CrashpadClient);
};
} // namespace crashpad
#endif // CRASHPAD_CLIENT_CRASHPAD_CLIENT_H_