X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=ghc%2Frts%2FItimer.h;h=3e41e49a7b95f63279263affa22a244c77d9ad0e;hb=e0b2097136f30331bae67cb01e66bba749d272c1;hp=e415074d867747db63c71d18275f228e7731bd76;hpb=438596897ebbe25a07e1c82085cfbc5bdb00f09e;p=ghc-hetmet.git

diff --git a/ghc/rts/Itimer.h b/ghc/rts/Itimer.h
index e415074..3e41e49 100644
--- a/ghc/rts/Itimer.h
+++ b/ghc/rts/Itimer.h
@@ -1,15 +1,22 @@
 /* -----------------------------------------------------------------------------
- * $Id: Itimer.h,v 1.2 1998/12/02 13:28:28 simonm Exp $
+ * $Id: Itimer.h,v 1.10 2001/11/27 01:51:23 sof Exp $
  *
- * (c) The GHC Team 1998
+ * (c) The GHC Team 1998-2001
  *
  * Interval timer for profiling and pre-emptive scheduling.
  *
  * ---------------------------------------------------------------------------*/
 
-nat  initialize_virtual_timer  ( nat ms );
-int  install_vtalrm_handler    ( void (*handler)(int) );
+# define TICK_FREQUENCY   50                      /* ticks per second */
+# define TICK_MILLISECS   (1000/TICK_FREQUENCY)   /* ms per tick */
+
+/* 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  startVirtTimer( nat ms );
+int  stopVirtTimer ( void );
 void block_vtalrm_signal       ( void );
 void unblock_vtalrm_signal     ( void );
-
-
+unsigned int getourtimeofday   ( void );