UnixSignalHandlers.h

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#ifndef FWCore_Utilities_UnixSignalHandlers_h
#define FWCore_Utilities_UnixSignalHandlers_h

/*----------------------------------------------------------------------

UnixSignalHandlers: A set of little utility functions to establish
and manipulate Unix-style signal handling.

----------------------------------------------------------------------*/

#include <signal.h>
#include <atomic>

namespace edm {

    extern volatile std::atomic<bool> shutdown_flag;

    extern "C" {
      void ep_sigusr2(int,siginfo_t*,void*);
      typedef void(*CFUNC)(int,siginfo_t*,void*);
    }

    void disableAllSigs(sigset_t* oldset);
    void disableRTSigs();
    void enableSignal(sigset_t* newset, int signum);
    void disableSignal(sigset_t* newset, int signum);
    void reenableSigs(sigset_t* oldset);
    void installSig(int signum, CFUNC func);
    void installCustomHandler(int signum, CFUNC func);
    void sigInventory();

}  // end of namespace edm
#endif