FbTk::SignalHandler Class Reference Handles system signals, singleton. More... #include <SignalHandler.hh> List of all members. Public Member Functions bool  registerHandler (int signum, SignalEventHandler *eh, SignalEventHandler **oldhandler_ret=0) void  removeHandler (int signum) Static Public Member Functions SignalHandler &  instance ()   get singleton object Detailed Description Handles system signals, singleton. Usage: inherit the class SignalEventHandler and then register it to SignalHandler by calling registerHandler with a signal number Definition at line 44 of file SignalHandler.hh. Member Function Documentation bool FbTk::SignalHandler::registerHandler (  int  signum, SignalEventHandler *  eh, SignalEventHandler **  oldhandler_ret = 0 )    Register an event handler Returns: true on success else false Parameters: signum  signal number eh  event handler oldhandler_ret  return handler to old sighandler Definition at line 41 of file SignalHandler.cc. Referenced by Fluxbox::Fluxbox(). { // must be less than NSIG if (signum >= NSIG) return false; // get old signal handler for this signum if (oldhandler_ret != 0) *oldhandler_ret = s_signal_handler[signum]; struct sigaction sa; // set callback sa.sa_handler = SignalHandler::handleSignal; sigemptyset (&sa.sa_mask); sa.sa_flags = 0; if (sigaction(signum, &sa, 0) == -1) return false; s_signal_handler[signum] = eh; return true; } void FbTk::SignalHandler::removeHandler (  int  signum  )    removes the signum handler Parameters: signum  signal number Definition at line 65 of file SignalHandler.cc. { if (signum < NSIG) s_signal_handler[signum] = 0; // clear handler pointer } The documentation for this class was generated from the following files: SignalHandler.hh SignalHandler.cc Fluxbox CVS-Jan-2003
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