ghc/rts/Signals.h

   1 /* -----------------------------------------------------------------------------
   2  * $Id: Signals.h,v 1.2 1998/12/02 13:28:47 simonm Exp $
   3  *
   4  * Signal processing / handling.
   5  *
   6  * ---------------------------------------------------------------------------*/
   7
   8 #ifndef PAR
   9
  10 extern StgPtr pending_handler_buf[];
  11 extern StgPtr *next_pending_handler;
  12
  13 #define signals_pending() (next_pending_handler != pending_handler_buf)
  14
  15 extern void initUserSignals(void);
  16 extern void blockUserSignals(void);
  17 extern void unblockUserSignals(void);
  18
  19 /* sig_install declared in PrimOps.h */
  20
  21 extern void start_signal_handlers(void);
  22
  23 #else
  24
  25 #define signals_pending() (rtsFalse)
  26
  27 #endif /* PAR */