/* -----------------------------------------------------------------------------
- * $Id: Schedule.h,v 1.14 2000/01/14 11:45:21 hwloidl Exp $
+ * $Id: Schedule.h,v 1.22 2001/03/22 03:51:10 hwloidl Exp $
*
* (c) The GHC Team 1998-1999
*
* Called from STG : yes
* Locks assumed : none
*/
-#if defined(GRAN)
-StgTSO *unblockOne(StgTSO *tso, StgClosure *node);
-#elif defined(PAR)
-StgTSO *unblockOne(StgTSO *tso, StgClosure *node);
+#if defined(GRAN) || defined(PAR)
+StgBlockingQueueElement *unblockOne(StgBlockingQueueElement *bqe, StgClosure *node);
#else
StgTSO *unblockOne(StgTSO *tso);
#endif
*/
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)
void initThread(StgTSO *tso, nat stack_size);
#endif
-// debugging only
-#ifdef DEBUG
-extern void printThreadBlockage(StgTSO *tso);
-#endif
-void print_bq (StgClosure *node);
-
//@node Scheduler Vars and Data Types, Some convenient macros, Scheduler Functions
//@subsection Scheduler Vars and Data Types
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
/* Thread queues.
* Locks required : sched_mutex
+ *
+ * In GranSim we have one run/blocked_queue per PE.
*/
+#if defined(GRAN)
+// run_queue_hds defined in GranSim.h
+#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;
#ifdef SMP
//@cindex sched_mutex
extern task_info *task_ids;
#endif
-#if !defined(GRAN)
-extern StgTSO *run_queue_hd, *run_queue_tl;
-extern StgTSO *blocked_queue_hd, *blocked_queue_tl;
-#endif
-
/* Needed by Hugs.
*/
void interruptStgRts ( void );
-// ?? needed -- HWL
+
void raiseAsync(StgTSO *tso, StgClosure *exception);
+nat run_queue_len(void);
+
+void resurrectThreads( StgTSO * );
//@node Some convenient macros, Index, Scheduler Vars and Data Types
//@subsection Some convenient macros
+/* debugging only
+ */
+#ifdef DEBUG
+void printThreadBlockage(StgTSO *tso);
+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...
*/
-#define END_TSO_QUEUE ((StgTSO *)(void*)&END_TSO_QUEUE_closure)
-#define END_CAF_LIST ((StgCAF *)(void*)&END_TSO_QUEUE_closure)
+/* 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.
run_queue_tl = tso; \
}
-//@cindex POP_RUN_QUEUE
+//@cindex POP_RUN_QUEUE
/* Pop the first thread off the runnable queue.
*/
#define POP_RUN_QUEUE() \
#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