crashpad/util/linux/ptrace_connection.h

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// 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_UTIL_LINUX_PTRACE_CONNECTION_H_
#define CRASHPAD_UTIL_LINUX_PTRACE_CONNECTION_H_
#include <sys/types.h>
#include "util/linux/thread_info.h"
namespace crashpad {
//! \brief Provides an interface for making `ptrace` requests against a process
//! and its threads.
class PtraceConnection {
public:
virtual ~PtraceConnection() {}
//! \brief Returns the process ID of the connected process.
virtual pid_t GetProcessID() = 0;
//! \brief Adds a new thread to this connection.
//!
//! \param[in] tid The thread ID of the thread to attach.
//! \return `true` on success. `false` on failure with a message logged.
virtual bool Attach(pid_t tid) = 0;
//! \brief Returns `true` if connected to a 64-bit process.
virtual bool Is64Bit() = 0;
//! \brief Retrieves a ThreadInfo for a target thread.
//!
//! \param[in] tid The thread ID of the target thread.
//! \param[out] info Information about the thread.
//! \return `true` on success. `false` on failure with a message logged.
virtual bool GetThreadInfo(pid_t tid, ThreadInfo* info) = 0;
};
} // namespace crashpad
#endif // CRASHPAD_UTIL_LINUX_PTRACE_CONNECTION_H_