[project @ 2001-08-22 12:24:41 by simonmar]

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

diff --git a/ghc/rts/Schedule.h b/ghc/rts/Schedule.h
index d0c3f99..00b4de1 100644 (file)
--- a/ghc/rts/Schedule.h
+++ b/ghc/rts/Schedule.h
@@ -1,5 +1,5 @@
 /* -----------------------------------------------------------------------------
- * $Id: Schedule.h,v 1.18 2000/04/14 15:18:07 sewardj Exp $
+ * $Id: Schedule.h,v 1.22 2001/03/22 03:51:10 hwloidl Exp $
  *
  * (c) The GHC Team 1998-1999
  *
@@ -32,7 +32,6 @@ void exitScheduler( void );
 void startTasks( void );
 #endif
 
-
 //@cindex awakenBlockedQueue
 /* awakenBlockedQueue()
  *
@@ -85,6 +84,15 @@ void raiseAsync(StgTSO *tso, StgClosure *exception);
  */
 void awaitEvent(rtsBool wait);  /* In Select.c */
 
+/* wakeUpSleepingThreads(nat ticks)
+ *
+ * Wakes up any sleeping threads whose timers have expired.
+ *
+ * Called from STG :  NO
+ * Locks assumed   :  sched_mutex
+ */
+rtsBool wakeUpSleepingThreads(nat);  /* In Select.c */
+
 // ToDo: check whether all fcts below are used in the SMP version, too
 //@cindex awaken_blocked_queue
 #if defined(GRAN)
@@ -112,7 +120,9 @@ void    initThread(StgTSO *tso, nat stack_size);
 extern nat context_switch;
 extern rtsBool interrupted;
 
-extern  nat ticks_since_select;
+/* In Select.c */
+extern nat timestamp;
+extern nat ticks_since_timestamp;
 
 //@cindex Capability
 /* Capability type
@@ -139,6 +149,7 @@ extern Capability MainRegTable;
 #else
 extern  StgTSO *run_queue_hd, *run_queue_tl;
 extern  StgTSO *blocked_queue_hd, *blocked_queue_tl;
+extern  StgTSO *sleeping_queue;
 #endif
 /* Linked list of all threads. */
 extern  StgTSO *all_threads;
@@ -186,21 +197,15 @@ void printThreadStatus(StgTSO *tso);
 void printAllThreads(void);
 #endif
 void print_bq (StgClosure *node);
+#if defined(PAR)
+void print_bqe (StgBlockingQueueElement *bqe);
+#endif
 
 /* -----------------------------------------------------------------------------
  * Some convenient macros...
  */
 
-/* this is the NIL ptr for a TSO queue (e.g. runnable queue) */
-#define END_TSO_QUEUE  ((StgTSO *)(void*)&END_TSO_QUEUE_closure)
-/* this is the NIL ptr for a list CAFs */
-#define END_ECAF_LIST   ((StgCAF *)(void*)&END_TSO_QUEUE_closure)
-#if defined(PAR) || defined(GRAN)
-/* this is the NIL ptr for a blocking queue */
-# define END_BQ_QUEUE  ((StgBlockingQueueElement *)(void*)&END_TSO_QUEUE_closure)
-/* this is the NIL ptr for a blocked fetch queue (as in PendingFetches in GUM) */
-# define END_BF_QUEUE  ((StgBlockedFetch *)(void*)&END_TSO_QUEUE_closure)
-#endif
+/* END_TSO_QUEUE and friends now defined in includes/StgMiscClosures.h */
 
 //@cindex APPEND_TO_RUN_QUEUE
 /* Add a thread to the end of the run queue.
@@ -267,6 +272,11 @@ void print_bq (StgClosure *node);
 #define THREAD_RUNNABLE()  /* nothing */
 #endif
 
+//@cindex EMPTY_RUN_QUEUE
+/* Check whether the run queue is empty i.e. the PE is idle
+ */
+#define EMPTY_RUN_QUEUE()     (run_queue_hd == END_TSO_QUEUE)
+
 //@node Index,  , Some convenient macros
 //@subsection Index