[project @ 2002-01-22 13:54:22 by simonmar]

[ghc-hetmet.git] / ghc / includes / SchedAPI.h

diff --git a/ghc/includes/SchedAPI.h b/ghc/includes/SchedAPI.h
index 2774527..0a53fa8 100644 (file)
--- a/ghc/includes/SchedAPI.h
+++ b/ghc/includes/SchedAPI.h
@@ -1,5 +1,5 @@
 /* -----------------------------------------------------------------------------
- * $Id: SchedAPI.h,v 1.2 1998/12/02 13:21:33 simonm Exp $
+ * $Id: SchedAPI.h,v 1.13 2001/03/22 03:51:09 hwloidl Exp $
  *
  * (c) The GHC Team 1998
  *
@@ -11,25 +11,31 @@
 #ifndef SCHEDAPI_H
 #define SCHEDAPI_H
 
-/*
- * Running the scheduler
- */
-
-typedef enum {
-    Success,      
-    Killed,     /* another thread killed us                           */
-    Interrupted, /* stopped in response to a call to interruptStgRts   */
-    Deadlock,   
-    AllBlocked,  /* subtly different from Deadlock                     */
-} SchedulerStatus;
-      
-SchedulerStatus schedule(StgTSO *main_thread, /*out*/StgClosure **ret);
+#if defined(GRAN)
+// Dummy def for NO_PRI if not in GranSim
+#define NO_PRI  0
+#endif
 
 /* 
- * Creating thraeds
+ * schedule() plus the thread creation functions are not part
+ * part of the external RTS API, so leave them out if we're
+ * not compiling rts/ bits.   -- sof 7/99
+ * 
  */
+SchedulerStatus waitThread(StgTSO *main_thread, /*out*/StgClosure **ret);
 
-StgTSO *createThread   (nat stack_size);
+/* 
+ * Creating threads
+ */
+#if defined(GRAN)
+StgTSO *createThread(nat stack_size, StgInt pri);
+#else
+StgTSO *createThread(nat stack_size);
+#endif
+#if defined(PAR) || defined(SMP)
+void taskStart(void);
+#endif
+void scheduleThread(StgTSO *tso);
 
 static inline void pushClosure   (StgTSO *tso, StgClosure *c) {
   tso->sp--;
@@ -43,7 +49,11 @@ static inline void pushRealWorld (StgTSO *tso) {
 static inline StgTSO *
 createGenThread(nat stack_size,  StgClosure *closure) {
   StgTSO *t;
+#if defined(GRAN)
+  t = createThread(stack_size, NO_PRI);
+#else
   t = createThread(stack_size);
+#endif
   pushClosure(t,closure);
   return t;
 }
@@ -51,22 +61,49 @@ createGenThread(nat stack_size,  StgClosure *closure) {
 static inline StgTSO *
 createIOThread(nat stack_size,  StgClosure *closure) {
   StgTSO *t;
+#if defined(GRAN)
+  t = createThread(stack_size, NO_PRI);
+#else
   t = createThread(stack_size);
+#endif
   pushRealWorld(t);
   pushClosure(t,closure);
   return t;
 }
 
+/*
+ * Same as above, but also evaluate the result of the IO action
+ * to whnf while we're at it.
+ */
+
+static inline StgTSO *
+createStrictIOThread(nat stack_size,  StgClosure *closure) {
+  StgTSO *t;
+#if defined(GRAN)
+  t = createThread(stack_size, NO_PRI);
+#else
+  t = createThread(stack_size);
+#endif
+  pushClosure(t,closure);
+  pushClosure(t,(StgClosure*)&stg_forceIO_closure);
+  return t;
+}
+
+
 /* 
  * Killing threads
  */
-
-void    deleteThread(StgTSO *tso);
+extern void deleteThread(StgTSO *tso);
+extern void deleteAllThreads ( void );
+extern int  howManyThreadsAvail ( void );
+/*
+ * Run until there are no more threads.
+ */
+extern void finishAllThreads ( void );
 
 /*
  * Reverting CAFs
  */
-
-void RevertCAFs(void);
+extern void RevertCAFs ( void );
 
 #endif