[project @ 2004-02-12 02:04:59 by mthomas]

[ghc-hetmet.git] / ghc / rts / Itimer.h

diff --git a/ghc/rts/Itimer.h b/ghc/rts/Itimer.h
index 9de549c..adfe12a 100644 (file)
--- a/ghc/rts/Itimer.h
+++ b/ghc/rts/Itimer.h
@@ -1,22 +1,21 @@
 /* -----------------------------------------------------------------------------
- * $Id: Itimer.h,v 1.9 2001/11/22 14:25:12 simonmar Exp $
+ * $Id: Itimer.h,v 1.13 2003/03/29 00:27:11 sof Exp $
  *
  * (c) The GHC Team 1998-2001
  *
  * Interval timer for profiling and pre-emptive scheduling.
  *
  * ---------------------------------------------------------------------------*/
+#ifndef __ITIMER_H__
+#define __ITIMER_H__
 
-# define TICK_FREQUENCY   50                      /* ticks per second */
-# define TICK_MILLISECS   (1000/TICK_FREQUENCY)   /* ms per tick */
+extern int startTicker( nat ms, TickProc handle_tick);
+extern int stopTicker ( void );
 
-/* Context switch timing constants. Context switches happen after a
- * whole number of ticks, the default being every tick.
- */
-#define CS_MIN_MILLISECS TICK_MILLISECS       /* milliseconds per slice */
- 
-int  initialize_virtual_timer  ( nat ms );
-int  install_vtalrm_handler    ( void );
-void block_vtalrm_signal       ( void );
-void unblock_vtalrm_signal     ( void );
-unsigned int getourtimeofday   ( void );
+extern unsigned int getourtimeofday   ( void );
+#if 0
+/* unused */
+extern void block_vtalrm_signal       ( void );
+extern void unblock_vtalrm_signal     ( void );
+#endif
+#endif /* __ITIMER_H__ */