SignalCatcher.cpp

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/***************************************
        Auteur : Pierre Aubert
        Mail : pierre.aubert@lapp.in2p3.fr
        Licence : CeCILL-C
****************************************/
 
#include <map>
#include <mutex>
 
#include "SignalCatcher.h"

struct SignalHandler{
        std::mutex currentMutex;
        int expectedSignal;
        bool isSignalRecieved;
};

std::map<int, SignalHandler> phoenix_mapSignalHandler;


void phoenix_sig_handler(int signum){
        std::map<int, SignalHandler>::iterator it(phoenix_mapSignalHandler.find(signum));
        if(it != phoenix_mapSignalHandler.end()){
                std::lock_guard<std::mutex> guard(it->second.currentMutex);
                it->second.isSignalRecieved = true;
        }
}


void phoenix_addSignalCatcher(int signalType){
        SignalHandler & handler = phoenix_mapSignalHandler[signalType]; //Add the signal to the main map of signals
        handler.expectedSignal = signalType;
        handler.isSignalRecieved = false;
        signal(signalType, phoenix_sig_handler);
}


bool phoenix_isSignalRecived(int signalType){
        bool b(false);
        std::map<int, SignalHandler>::iterator it(phoenix_mapSignalHandler.find(signalType));
        if(it != phoenix_mapSignalHandler.end()){
                std::lock_guard<std::mutex> guard(it->second.currentMutex);
                b = it->second.isSignalRecieved;
        }
        return b;
}