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/*
* Copyright (c) 2014, Ford Motor Company
* 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 the Ford Motor Company 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 HOLDER 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.
*/
#ifndef SRC_COMPONENTS_UTILS_INCLUDE_UTILS_SIGNALS_H_
#define SRC_COMPONENTS_UTILS_INCLUDE_UTILS_SIGNALS_H_
#ifdef __QNXNTO__
typedef void (*sighandler_t)(int);
#else
#include <signal.h>
#endif
#include "appMain/low_voltage_signals_handler.h"
namespace utils {
class Signals {
public:
/**
* @brief Unsubscribe thread from termination signals SIGINT and SIGTERM
* @return True if thread unsubscribed successfuly, otherwise false
*/
static bool UnsubscribeFromTermination();
/**
* @brief Triggers thread to wait for termination signals SIGINT and SIGTERM
* @param sig_handler - handler to work with signals specidied above
* @return True if handler handles signals successfuly, otherwise false
*/
static bool WaitTerminationSignals(sighandler_t sig_handler);
/**
* @brief Unsubscribe thread from low voltage signals
* SIGLOWVOLTAGE, SIGWAKEUP and SIGIGNOFF
* @return True if thread unsubscribed successfuly, otherwise false
*/
static bool UnsubscribeFromLowVoltageSignals(
const main_namespace::LowVoltageSignalsOffset& offset_data);
/**
* @brief Sends signal to specified process
* @param signal to send
* @param destination process signal to be sent to
*/
static void SendSignal(const int signo, const pid_t pid);
/**
* @brief Creates child process
* @return created process id or -1 in case of error
*/
static pid_t Fork();
/**
* @brief Wait for child process to be terminated
* @param cpid - process to wait for termination
* @param status store status information in the int to which it points
* @param options - options for exit form function
* detailed options can be found here: https://linux.die.net/man/2/waitpid
*/
static void WaitPid(pid_t cpid, int* status, int options);
/**
* @brief Exits for process
* @param status - exit status code
*/
static void ExitProcess(const int status);
};
} // namespace utils
#endif // SRC_COMPONENTS_UTILS_INCLUDE_UTILS_SIGNALS_H_
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