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 <csignal>
#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