#include "PosixSource.h"
#include "Rts.h"
-#include "SchedAPI.h"
-#include "Storage.h"
+
#include "Threads.h"
-#include "RtsFlags.h"
#include "STM.h"
#include "Schedule.h"
#include "Trace.h"
currently pri (priority) is only used in a GRAN setup -- HWL
------------------------------------------------------------------------ */
-#if defined(GRAN)
-/* currently pri (priority) is only used in a GRAN setup -- HWL */
-StgTSO *
-createThread(nat size, StgInt pri)
-#else
StgTSO *
createThread(Capability *cap, nat size)
-#endif
{
StgTSO *tso;
nat stack_size;
/* sched_mutex is *not* required */
/* First check whether we should create a thread at all */
-#if defined(PARALLEL_HASKELL)
- /* check that no more than RtsFlags.ParFlags.maxThreads threads are created */
- if (advisory_thread_count >= RtsFlags.ParFlags.maxThreads) {
- threadsIgnored++;
- debugBelch("{createThread}Daq ghuH: refusing to create another thread; no more than %d threads allowed (currently %d)\n",
- RtsFlags.ParFlags.maxThreads, advisory_thread_count);
- return END_TSO_QUEUE;
- }
- threadsCreated++;
-#endif
-
-#if defined(GRAN)
- ASSERT(!RtsFlags.GranFlags.Light || CurrentProc==0);
-#endif
// ToDo: check whether size = stack_size - TSO_STRUCT_SIZEW
size = MIN_STACK_WORDS + TSO_STRUCT_SIZEW;
}
- stack_size = size - TSO_STRUCT_SIZEW;
-
+ size = round_to_mblocks(size);
tso = (StgTSO *)allocateLocal(cap, size);
+
+ stack_size = size - TSO_STRUCT_SIZEW;
TICK_ALLOC_TSO(stack_size, 0);
SET_HDR(tso, &stg_TSO_info, CCS_SYSTEM);
-#if defined(GRAN)
- SET_GRAN_HDR(tso, ThisPE);
-#endif
// Always start with the compiled code evaluator
tso->what_next = ThreadRunGHC;
SET_HDR((StgClosure*)tso->sp,(StgInfoTable *)&stg_stop_thread_info,CCS_SYSTEM);
tso->_link = END_TSO_QUEUE;
- // ToDo: check this
-#if defined(GRAN)
- /* uses more flexible routine in GranSim */
- insertThread(tso, CurrentProc);
-#else
- /* In a non-GranSim setup the pushing of a TSO onto the runq is separated
- * from its creation
- */
-#endif
-
-#if defined(GRAN)
- if (RtsFlags.GranFlags.GranSimStats.Full)
- DumpGranEvent(GR_START,tso);
-#elif defined(PARALLEL_HASKELL)
- if (RtsFlags.ParFlags.ParStats.Full)
- DumpGranEvent(GR_STARTQ,tso);
- /* HACk to avoid SCHEDULE
- LastTSO = tso; */
-#endif
-
/* Link the new thread on the global thread list.
*/
ACQUIRE_LOCK(&sched_mutex);
g0s0->threads = tso;
RELEASE_LOCK(&sched_mutex);
-#if defined(DIST)
- tso->dist.priority = MandatoryPriority; //by default that is...
-#endif
-
-#if defined(GRAN)
- tso->gran.pri = pri;
-# if defined(DEBUG)
- tso->gran.magic = TSO_MAGIC; // debugging only
-# endif
- tso->gran.sparkname = 0;
- tso->gran.startedat = CURRENT_TIME;
- tso->gran.exported = 0;
- tso->gran.basicblocks = 0;
- tso->gran.allocs = 0;
- tso->gran.exectime = 0;
- tso->gran.fetchtime = 0;
- tso->gran.fetchcount = 0;
- tso->gran.blocktime = 0;
- tso->gran.blockcount = 0;
- tso->gran.blockedat = 0;
- tso->gran.globalsparks = 0;
- tso->gran.localsparks = 0;
- if (RtsFlags.GranFlags.Light)
- tso->gran.clock = Now; /* local clock */
- else
- tso->gran.clock = 0;
-
- IF_DEBUG(gran,printTSO(tso));
-#elif defined(PARALLEL_HASKELL)
-# if defined(DEBUG)
- tso->par.magic = TSO_MAGIC; // debugging only
-# endif
- tso->par.sparkname = 0;
- tso->par.startedat = CURRENT_TIME;
- tso->par.exported = 0;
- tso->par.basicblocks = 0;
- tso->par.allocs = 0;
- tso->par.exectime = 0;
- tso->par.fetchtime = 0;
- tso->par.fetchcount = 0;
- tso->par.blocktime = 0;
- tso->par.blockcount = 0;
- tso->par.blockedat = 0;
- tso->par.globalsparks = 0;
- tso->par.localsparks = 0;
-#endif
-
-#if defined(GRAN)
- globalGranStats.tot_threads_created++;
- globalGranStats.threads_created_on_PE[CurrentProc]++;
- globalGranStats.tot_sq_len += spark_queue_len(CurrentProc);
- globalGranStats.tot_sq_probes++;
-#elif defined(PARALLEL_HASKELL)
- // collect parallel global statistics (currently done together with GC stats)
- if (RtsFlags.ParFlags.ParStats.Global &&
- RtsFlags.GcFlags.giveStats > NO_GC_STATS) {
- //debugBelch("Creating thread %d @ %11.2f\n", tso->id, usertime());
- globalParStats.tot_threads_created++;
- }
-#endif
-
-#if defined(GRAN)
- debugTrace(GRAN_DEBUG_pri,
- "==__ schedule: Created TSO %d (%p);",
- CurrentProc, tso, tso->id);
-#elif defined(PARALLEL_HASKELL)
- debugTrace(PAR_DEBUG_verbose,
- "==__ schedule: Created TSO %d (%p); %d threads active",
- (long)tso->id, tso, advisory_thread_count);
-#else
+ postEvent (cap, EVENT_CREATE_THREAD, tso->id, 0);
+
debugTrace(DEBUG_sched,
"created thread %ld, stack size = %lx words",
(long)tso->id, (long)tso->stack_size);
-#endif
return tso;
}
-#if defined(PAR)
-/* RFP:
- all parallel thread creation calls should fall through the following routine.
-*/
-StgTSO *
-createThreadFromSpark(rtsSpark spark)
-{ StgTSO *tso;
- ASSERT(spark != (rtsSpark)NULL);
-// JB: TAKE CARE OF THIS COUNTER! BUGGY
- if (advisory_thread_count >= RtsFlags.ParFlags.maxThreads)
- { threadsIgnored++;
- barf("{createSparkThread}Daq ghuH: refusing to create another thread; no more than %d threads allowed (currently %d)",
- RtsFlags.ParFlags.maxThreads, advisory_thread_count);
- return END_TSO_QUEUE;
- }
- else
- { threadsCreated++;
- tso = createThread(RtsFlags.GcFlags.initialStkSize);
- if (tso==END_TSO_QUEUE)
- barf("createSparkThread: Cannot create TSO");
-#if defined(DIST)
- tso->priority = AdvisoryPriority;
-#endif
- pushClosure(tso,spark);
- addToRunQueue(tso);
- advisory_thread_count++; // JB: TAKE CARE OF THIS COUNTER! BUGGY
- }
- return tso;
-}
-#endif
-
/* ---------------------------------------------------------------------------
* Comparing Thread ids.
*
unblock a single thread.
------------------------------------------------------------------------- */
-#if defined(GRAN)
-STATIC_INLINE void
-unblockCount ( StgBlockingQueueElement *bqe, StgClosure *node )
-{
-}
-#elif defined(PARALLEL_HASKELL)
-STATIC_INLINE void
-unblockCount ( StgBlockingQueueElement *bqe, StgClosure *node )
-{
- /* write RESUME events to log file and
- update blocked and fetch time (depending on type of the orig closure) */
- if (RtsFlags.ParFlags.ParStats.Full) {
- DumpRawGranEvent(CURRENT_PROC, CURRENT_PROC,
- GR_RESUMEQ, ((StgTSO *)bqe), ((StgTSO *)bqe)->block_info.closure,
- 0, 0 /* spark_queue_len(ADVISORY_POOL) */);
- if (emptyRunQueue())
- emitSchedule = rtsTrue;
-
- switch (get_itbl(node)->type) {
- case FETCH_ME_BQ:
- ((StgTSO *)bqe)->par.fetchtime += CURRENT_TIME-((StgTSO *)bqe)->par.blockedat;
- break;
- case RBH:
- case FETCH_ME:
- case BLACKHOLE_BQ:
- ((StgTSO *)bqe)->par.blocktime += CURRENT_TIME-((StgTSO *)bqe)->par.blockedat;
- break;
-#ifdef DIST
- case MVAR:
- break;
-#endif
- default:
- barf("{unblockOne}Daq Qagh: unexpected closure in blocking queue");
- }
- }
-}
-#endif
-
-#if defined(GRAN)
-StgBlockingQueueElement *
-unblockOne(StgBlockingQueueElement *bqe, StgClosure *node)
-{
- StgTSO *tso;
- PEs node_loc, tso_loc;
-
- node_loc = where_is(node); // should be lifted out of loop
- tso = (StgTSO *)bqe; // wastes an assignment to get the type right
- tso_loc = where_is((StgClosure *)tso);
- if (IS_LOCAL_TO(PROCS(node),tso_loc)) { // TSO is local
- /* !fake_fetch => TSO is on CurrentProc is same as IS_LOCAL_TO */
- ASSERT(CurrentProc!=node_loc || tso_loc==CurrentProc);
- CurrentTime[CurrentProc] += RtsFlags.GranFlags.Costs.lunblocktime;
- // insertThread(tso, node_loc);
- new_event(tso_loc, tso_loc, CurrentTime[CurrentProc],
- ResumeThread,
- tso, node, (rtsSpark*)NULL);
- tso->link = END_TSO_QUEUE; // overwrite link just to be sure
- // len_local++;
- // len++;
- } else { // TSO is remote (actually should be FMBQ)
- CurrentTime[CurrentProc] += RtsFlags.GranFlags.Costs.mpacktime +
- RtsFlags.GranFlags.Costs.gunblocktime +
- RtsFlags.GranFlags.Costs.latency;
- new_event(tso_loc, CurrentProc, CurrentTime[CurrentProc],
- UnblockThread,
- tso, node, (rtsSpark*)NULL);
- tso->link = END_TSO_QUEUE; // overwrite link just to be sure
- // len++;
- }
- /* the thread-queue-overhead is accounted for in either Resume or UnblockThread */
- IF_GRAN_DEBUG(bq,
- debugBelch(" %s TSO %d (%p) [PE %d] (block_info.closure=%p) (next=%p) ,",
- (node_loc==tso_loc ? "Local" : "Global"),
- tso->id, tso, CurrentProc, tso->block_info.closure, tso->link));
- tso->block_info.closure = NULL;
- debugTrace(DEBUG_sched, "-- waking up thread %ld (%p)",
- tso->id, tso));
-}
-#elif defined(PARALLEL_HASKELL)
-StgBlockingQueueElement *
-unblockOne(StgBlockingQueueElement *bqe, StgClosure *node)
-{
- StgBlockingQueueElement *next;
-
- switch (get_itbl(bqe)->type) {
- case TSO:
- ASSERT(((StgTSO *)bqe)->why_blocked != NotBlocked);
- /* if it's a TSO just push it onto the run_queue */
- next = bqe->link;
- ((StgTSO *)bqe)->link = END_TSO_QUEUE; // debugging?
- APPEND_TO_RUN_QUEUE((StgTSO *)bqe);
- threadRunnable();
- unblockCount(bqe, node);
- /* reset blocking status after dumping event */
- ((StgTSO *)bqe)->why_blocked = NotBlocked;
- break;
-
- case BLOCKED_FETCH:
- /* if it's a BLOCKED_FETCH put it on the PendingFetches list */
- next = bqe->link;
- bqe->link = (StgBlockingQueueElement *)PendingFetches;
- PendingFetches = (StgBlockedFetch *)bqe;
- break;
-
-# if defined(DEBUG)
- /* can ignore this case in a non-debugging setup;
- see comments on RBHSave closures above */
- case CONSTR:
- /* check that the closure is an RBHSave closure */
- ASSERT(get_itbl((StgClosure *)bqe) == &stg_RBH_Save_0_info ||
- get_itbl((StgClosure *)bqe) == &stg_RBH_Save_1_info ||
- get_itbl((StgClosure *)bqe) == &stg_RBH_Save_2_info);
- break;
-
- default:
- barf("{unblockOne}Daq Qagh: Unexpected IP (%#lx; %s) in blocking queue at %#lx\n",
- get_itbl((StgClosure *)bqe), info_type((StgClosure *)bqe),
- (StgClosure *)bqe);
-# endif
- }
- IF_PAR_DEBUG(bq, debugBelch(", %p (%s)\n", bqe, info_type((StgClosure*)bqe)));
- return next;
-}
-#endif
-
StgTSO *
unblockOne (Capability *cap, StgTSO *tso)
{
ASSERT(tso->bound->cap == tso->cap);
tso->bound->cap = cap;
}
+
tso->cap = cap;
appendToRunQueue(cap,tso);
- // we're holding a newly woken thread, make sure we context switch
- // quickly so we can migrate it if necessary.
- context_switch = 1;
+
+ // context-switch soonish so we can migrate the new thread if
+ // necessary. NB. not contextSwitchCapability(cap), which would
+ // force a context switch immediately.
+ cap->context_switch = 1;
} else {
// we'll try to wake it up on the Capability it was last on.
- wakeupThreadOnCapability_lock(tso->cap, tso);
+ wakeupThreadOnCapability(cap, tso->cap, tso);
}
#else
appendToRunQueue(cap,tso);
- context_switch = 1;
+
+ // context-switch soonish so we can migrate the new thread if
+ // necessary. NB. not contextSwitchCapability(cap), which would
+ // force a context switch immediately.
+ cap->context_switch = 1;
#endif
- debugTrace(DEBUG_sched,
- "waking up thread %ld on cap %d",
+ postEvent (cap, EVENT_THREAD_WAKEUP, tso->id, tso->cap->no);
+
+ debugTrace(DEBUG_sched, "waking up thread %ld on cap %d",
(long)tso->id, tso->cap->no);
return next;
wakes up all the threads on the specified queue.
------------------------------------------------------------------------- */
-#if defined(GRAN)
-void
-awakenBlockedQueue(StgBlockingQueueElement *q, StgClosure *node)
-{
- StgBlockingQueueElement *bqe;
- PEs node_loc;
- nat len = 0;
-
- IF_GRAN_DEBUG(bq,
- debugBelch("##-_ AwBQ for node %p on PE %d @ %ld by TSO %d (%p): \n", \
- node, CurrentProc, CurrentTime[CurrentProc],
- CurrentTSO->id, CurrentTSO));
-
- node_loc = where_is(node);
-
- ASSERT(q == END_BQ_QUEUE ||
- get_itbl(q)->type == TSO || // q is either a TSO or an RBHSave
- get_itbl(q)->type == CONSTR); // closure (type constructor)
- ASSERT(is_unique(node));
-
- /* FAKE FETCH: magically copy the node to the tso's proc;
- no Fetch necessary because in reality the node should not have been
- moved to the other PE in the first place
- */
- if (CurrentProc!=node_loc) {
- IF_GRAN_DEBUG(bq,
- debugBelch("## node %p is on PE %d but CurrentProc is %d (TSO %d); assuming fake fetch and adjusting bitmask (old: %#x)\n",
- node, node_loc, CurrentProc, CurrentTSO->id,
- // CurrentTSO, where_is(CurrentTSO),
- node->header.gran.procs));
- node->header.gran.procs = (node->header.gran.procs) | PE_NUMBER(CurrentProc);
- IF_GRAN_DEBUG(bq,
- debugBelch("## new bitmask of node %p is %#x\n",
- node, node->header.gran.procs));
- if (RtsFlags.GranFlags.GranSimStats.Global) {
- globalGranStats.tot_fake_fetches++;
- }
- }
-
- bqe = q;
- // ToDo: check: ASSERT(CurrentProc==node_loc);
- while (get_itbl(bqe)->type==TSO) { // q != END_TSO_QUEUE) {
- //next = bqe->link;
- /*
- bqe points to the current element in the queue
- next points to the next element in the queue
- */
- //tso = (StgTSO *)bqe; // wastes an assignment to get the type right
- //tso_loc = where_is(tso);
- len++;
- bqe = unblockOne(bqe, node);
- }
-
- /* if this is the BQ of an RBH, we have to put back the info ripped out of
- the closure to make room for the anchor of the BQ */
- if (bqe!=END_BQ_QUEUE) {
- ASSERT(get_itbl(node)->type == RBH && get_itbl(bqe)->type == CONSTR);
- /*
- ASSERT((info_ptr==&RBH_Save_0_info) ||
- (info_ptr==&RBH_Save_1_info) ||
- (info_ptr==&RBH_Save_2_info));
- */
- /* cf. convertToRBH in RBH.c for writing the RBHSave closure */
- ((StgRBH *)node)->blocking_queue = (StgBlockingQueueElement *)((StgRBHSave *)bqe)->payload[0];
- ((StgRBH *)node)->mut_link = (StgMutClosure *)((StgRBHSave *)bqe)->payload[1];
-
- IF_GRAN_DEBUG(bq,
- debugBelch("## Filled in RBH_Save for %p (%s) at end of AwBQ\n",
- node, info_type(node)));
- }
-
- /* statistics gathering */
- if (RtsFlags.GranFlags.GranSimStats.Global) {
- // globalGranStats.tot_bq_processing_time += bq_processing_time;
- globalGranStats.tot_bq_len += len; // total length of all bqs awakened
- // globalGranStats.tot_bq_len_local += len_local; // same for local TSOs only
- globalGranStats.tot_awbq++; // total no. of bqs awakened
- }
- IF_GRAN_DEBUG(bq,
- debugBelch("## BQ Stats of %p: [%d entries] %s\n",
- node, len, (bqe!=END_BQ_QUEUE) ? "RBH" : ""));
-}
-#elif defined(PARALLEL_HASKELL)
-void
-awakenBlockedQueue(StgBlockingQueueElement *q, StgClosure *node)
-{
- StgBlockingQueueElement *bqe;
-
- IF_PAR_DEBUG(verbose,
- debugBelch("##-_ AwBQ for node %p on [%x]: \n",
- node, mytid));
-#ifdef DIST
- //RFP
- if(get_itbl(q)->type == CONSTR || q==END_BQ_QUEUE) {
- IF_PAR_DEBUG(verbose, debugBelch("## ... nothing to unblock so lets just return. RFP (BUG?)\n"));
- return;
- }
-#endif
-
- ASSERT(q == END_BQ_QUEUE ||
- get_itbl(q)->type == TSO ||
- get_itbl(q)->type == BLOCKED_FETCH ||
- get_itbl(q)->type == CONSTR);
-
- bqe = q;
- while (get_itbl(bqe)->type==TSO ||
- get_itbl(bqe)->type==BLOCKED_FETCH) {
- bqe = unblockOne(bqe, node);
- }
-}
-
-#else /* !GRAN && !PARALLEL_HASKELL */
-
void
awakenBlockedQueue(Capability *cap, StgTSO *tso)
{
tso = unblockOne(cap,tso);
}
}
-#endif
-
/* ---------------------------------------------------------------------------
* rtsSupportsBoundThreads(): is the RTS built to support bound threads?
break;
#if defined(mingw32_HOST_OS)
case BlockedOnDoProc:
- debugBelch("is blocked on proc (request: %ld)", tso->block_info.async_result->reqID);
+ debugBelch("is blocked on proc (request: %u)", tso->block_info.async_result->reqID);
break;
#endif
case BlockedOnDelay:
case NotBlocked:
debugBelch("is not blocked");
break;
-#if defined(PARALLEL_HASKELL)
- case BlockedOnGA:
- debugBelch("is blocked on global address; local FM_BQ is %p (%s)",
- tso->block_info.closure, info_type(tso->block_info.closure));
- break;
- case BlockedOnGA_NoSend:
- debugBelch("is blocked on global address (no send); local FM_BQ is %p (%s)",
- tso->block_info.closure, info_type(tso->block_info.closure));
- break;
-#endif
case BlockedOnCCall:
debugBelch("is blocked on an external call");
break;
default:
printThreadBlockage(t);
}
+ if (t->flags & TSO_DIRTY) {
+ debugBelch(" (TSO_DIRTY)");
+ } else if (t->flags & TSO_LINK_DIRTY) {
+ debugBelch(" (TSO_LINK_DIRTY)");
+ }
debugBelch("\n");
}
}
debugBelch("%d threads on queue\n", i);
}
-/*
- Print a whole blocking queue attached to node (debugging only).
-*/
-# if defined(PARALLEL_HASKELL)
-void
-print_bq (StgClosure *node)
-{
- StgBlockingQueueElement *bqe;
- StgTSO *tso;
- rtsBool end;
-
- debugBelch("## BQ of closure %p (%s): ",
- node, info_type(node));
-
- /* should cover all closures that may have a blocking queue */
- ASSERT(get_itbl(node)->type == BLACKHOLE_BQ ||
- get_itbl(node)->type == FETCH_ME_BQ ||
- get_itbl(node)->type == RBH ||
- get_itbl(node)->type == MVAR);
-
- ASSERT(node!=(StgClosure*)NULL); // sanity check
-
- print_bqe(((StgBlockingQueue*)node)->blocking_queue);
-}
-
-/*
- Print a whole blocking queue starting with the element bqe.
-*/
-void
-print_bqe (StgBlockingQueueElement *bqe)
-{
- rtsBool end;
-
- /*
- NB: In a parallel setup a BQ of an RBH must end with an RBH_Save closure;
- */
- for (end = (bqe==END_BQ_QUEUE);
- !end; // iterate until bqe points to a CONSTR
- end = (get_itbl(bqe)->type == CONSTR) || (bqe->link==END_BQ_QUEUE),
- bqe = end ? END_BQ_QUEUE : bqe->link) {
- ASSERT(bqe != END_BQ_QUEUE); // sanity check
- ASSERT(bqe != (StgBlockingQueueElement *)NULL); // sanity check
- /* types of closures that may appear in a blocking queue */
- ASSERT(get_itbl(bqe)->type == TSO ||
- get_itbl(bqe)->type == BLOCKED_FETCH ||
- get_itbl(bqe)->type == CONSTR);
- /* only BQs of an RBH end with an RBH_Save closure */
- //ASSERT(get_itbl(bqe)->type != CONSTR || get_itbl(node)->type == RBH);
-
- switch (get_itbl(bqe)->type) {
- case TSO:
- debugBelch(" TSO %u (%x),",
- ((StgTSO *)bqe)->id, ((StgTSO *)bqe));
- break;
- case BLOCKED_FETCH:
- debugBelch(" BF (node=%p, ga=((%x, %d, %x)),",
- ((StgBlockedFetch *)bqe)->node,
- ((StgBlockedFetch *)bqe)->ga.payload.gc.gtid,
- ((StgBlockedFetch *)bqe)->ga.payload.gc.slot,
- ((StgBlockedFetch *)bqe)->ga.weight);
- break;
- case CONSTR:
- debugBelch(" %s (IP %p),",
- (get_itbl(bqe) == &stg_RBH_Save_0_info ? "RBH_Save_0" :
- get_itbl(bqe) == &stg_RBH_Save_1_info ? "RBH_Save_1" :
- get_itbl(bqe) == &stg_RBH_Save_2_info ? "RBH_Save_2" :
- "RBH_Save_?"), get_itbl(bqe));
- break;
- default:
- barf("Unexpected closure type %s in blocking queue", // of %p (%s)",
- info_type((StgClosure *)bqe)); // , node, info_type(node));
- break;
- }
- } /* for */
- debugBelch("\n");
-}
-# elif defined(GRAN)
-void
-print_bq (StgClosure *node)
-{
- StgBlockingQueueElement *bqe;
- PEs node_loc, tso_loc;
- rtsBool end;
-
- /* should cover all closures that may have a blocking queue */
- ASSERT(get_itbl(node)->type == BLACKHOLE_BQ ||
- get_itbl(node)->type == FETCH_ME_BQ ||
- get_itbl(node)->type == RBH);
-
- ASSERT(node!=(StgClosure*)NULL); // sanity check
- node_loc = where_is(node);
-
- debugBelch("## BQ of closure %p (%s) on [PE %d]: ",
- node, info_type(node), node_loc);
-
- /*
- NB: In a parallel setup a BQ of an RBH must end with an RBH_Save closure;
- */
- for (bqe = ((StgBlockingQueue*)node)->blocking_queue, end = (bqe==END_BQ_QUEUE);
- !end; // iterate until bqe points to a CONSTR
- end = (get_itbl(bqe)->type == CONSTR) || (bqe->link==END_BQ_QUEUE), bqe = end ? END_BQ_QUEUE : bqe->link) {
- ASSERT(bqe != END_BQ_QUEUE); // sanity check
- ASSERT(bqe != (StgBlockingQueueElement *)NULL); // sanity check
- /* types of closures that may appear in a blocking queue */
- ASSERT(get_itbl(bqe)->type == TSO ||
- get_itbl(bqe)->type == CONSTR);
- /* only BQs of an RBH end with an RBH_Save closure */
- ASSERT(get_itbl(bqe)->type != CONSTR || get_itbl(node)->type == RBH);
-
- tso_loc = where_is((StgClosure *)bqe);
- switch (get_itbl(bqe)->type) {
- case TSO:
- debugBelch(" TSO %d (%p) on [PE %d],",
- ((StgTSO *)bqe)->id, (StgTSO *)bqe, tso_loc);
- break;
- case CONSTR:
- debugBelch(" %s (IP %p),",
- (get_itbl(bqe) == &stg_RBH_Save_0_info ? "RBH_Save_0" :
- get_itbl(bqe) == &stg_RBH_Save_1_info ? "RBH_Save_1" :
- get_itbl(bqe) == &stg_RBH_Save_2_info ? "RBH_Save_2" :
- "RBH_Save_?"), get_itbl(bqe));
- break;
- default:
- barf("Unexpected closure type %s in blocking queue of %p (%s)",
- info_type((StgClosure *)bqe), node, info_type(node));
- break;
- }
- } /* for */
- debugBelch("\n");
-}
-# endif
-
-#if defined(PARALLEL_HASKELL)
-nat
-run_queue_len(void)
-{
- nat i;
- StgTSO *tso;
-
- for (i=0, tso=run_queue_hd;
- tso != END_TSO_QUEUE;
- i++, tso=tso->link) {
- /* nothing */
- }
-
- return i;
-}
-#endif
-
#endif /* DEBUG */
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