/* ---------------------------------------------------------------------------
- * $Id: Schedule.c,v 1.199 2004/08/09 14:27:53 simonmar Exp $
*
- * (c) The GHC Team, 1998-2003
+ * (c) The GHC Team, 1998-2004
*
* Scheduler
*
#include "SchedAPI.h"
#include "RtsUtils.h"
#include "RtsFlags.h"
+#include "BlockAlloc.h"
#include "Storage.h"
#include "StgRun.h"
-#include "StgStartup.h"
#include "Hooks.h"
#define COMPILING_SCHEDULER
#include "Schedule.h"
#include "Timer.h"
#include "Prelude.h"
#include "ThreadLabels.h"
+#include "LdvProfile.h"
+#include "Updates.h"
#ifdef PROFILING
#include "Proftimer.h"
#include "ProfHeap.h"
static void schedule ( StgMainThread *mainThread, Capability *initialCapability );
void interruptStgRts ( void );
+#if !defined(PAR) && !defined(RTS_SUPPORTS_THREADS)
static void detectBlackHoles ( void );
+#endif
#if defined(RTS_SUPPORTS_THREADS)
/* ToDo: carefully document the invariants that go together
#if DEBUG
static char *whatNext_strs[] = {
+ "(unknown)",
"ThreadRunGHC",
"ThreadInterpret",
"ThreadKilled",
# endif
#endif
rtsBool was_interrupted = rtsFalse;
- StgTSOWhatNext prev_what_next;
+ nat prev_what_next;
// Pre-condition: sched_mutex is held.
// We might have a capability, passed in as initialCapability.
CurrentTSO, (StgClosure*)NULL, (rtsSpark*)NULL);
IF_DEBUG(gran,
- fprintf(stderr, "GRAN: Init CurrentTSO (in schedule) = %p\n", CurrentTSO);
+ debugBelch("GRAN: Init CurrentTSO (in schedule) = %p\n", CurrentTSO);
G_TSO(CurrentTSO, 5));
if (RtsFlags.GranFlags.Light) {
#if defined(RTS_SUPPORTS_THREADS)
// In the threaded RTS, deadlock detection doesn't work,
// so just exit right away.
- prog_belch("interrupted");
+ errorBelch("interrupted");
releaseCapability(cap);
RELEASE_LOCK(&sched_mutex);
shutdownHaskellAndExit(EXIT_SUCCESS);
if (!RtsFlags.GranFlags.Light)
handleIdlePEs();
- IF_DEBUG(gran, fprintf(stderr, "GRAN: switch by event-type\n"));
+ IF_DEBUG(gran, debugBelch("GRAN: switch by event-type\n"));
/* main event dispatcher in GranSim */
switch (event->evttype) {
/* Should just be continuing execution */
case ContinueThread:
- IF_DEBUG(gran, fprintf(stderr, "GRAN: doing ContinueThread\n"));
+ IF_DEBUG(gran, debugBelch("GRAN: doing ContinueThread\n"));
/* ToDo: check assertion
ASSERT(run_queue_hd != (StgTSO*)NULL &&
run_queue_hd != END_TSO_QUEUE);
/* Ignore ContinueThreads for fetching threads (if synchr comm) */
if (!RtsFlags.GranFlags.DoAsyncFetch &&
procStatus[CurrentProc]==Fetching) {
- belch("ghuH: Spurious ContinueThread while Fetching ignored; TSO %d (%p) [PE %d]",
+ debugBelch("ghuH: Spurious ContinueThread while Fetching ignored; TSO %d (%p) [PE %d]\n",
CurrentTSO->id, CurrentTSO, CurrentProc);
goto next_thread;
}
/* Ignore ContinueThreads for completed threads */
if (CurrentTSO->what_next == ThreadComplete) {
- belch("ghuH: found a ContinueThread event for completed thread %d (%p) [PE %d] (ignoring ContinueThread)",
+ debugBelch("ghuH: found a ContinueThread event for completed thread %d (%p) [PE %d] (ignoring ContinueThread)\n",
CurrentTSO->id, CurrentTSO, CurrentProc);
goto next_thread;
}
/* Ignore ContinueThreads for threads that are being migrated */
if (PROCS(CurrentTSO)==Nowhere) {
- belch("ghuH: trying to run the migrating TSO %d (%p) [PE %d] (ignoring ContinueThread)",
+ debugBelch("ghuH: trying to run the migrating TSO %d (%p) [PE %d] (ignoring ContinueThread)\n",
CurrentTSO->id, CurrentTSO, CurrentProc);
goto next_thread;
}
/* The thread should be at the beginning of the run queue */
if (CurrentTSO!=run_queue_hds[CurrentProc]) {
- belch("ghuH: TSO %d (%p) [PE %d] is not at the start of the run_queue when doing a ContinueThread",
+ debugBelch("ghuH: TSO %d (%p) [PE %d] is not at the start of the run_queue when doing a ContinueThread\n",
CurrentTSO->id, CurrentTSO, CurrentProc);
break; // run the thread anyway
}
/* This point was scheduler_loop in the old RTS */
- IF_DEBUG(gran, belch("GRAN: after main switch"));
+ IF_DEBUG(gran, debugBelch("GRAN: after main switch\n"));
TimeOfLastEvent = CurrentTime[CurrentProc];
TimeOfNextEvent = get_time_of_next_event();
IgnoreEvents=(TimeOfNextEvent==0); // HWL HACK
// CurrentTSO = ThreadQueueHd;
- IF_DEBUG(gran, belch("GRAN: time of next event is: %ld",
+ IF_DEBUG(gran, debugBelch("GRAN: time of next event is: %ld\n",
TimeOfNextEvent));
if (RtsFlags.GranFlags.Light)
EndOfTimeSlice = CurrentTime[CurrentProc]+RtsFlags.GranFlags.time_slice;
IF_DEBUG(gran,
- belch("GRAN: end of time-slice is %#lx", EndOfTimeSlice));
+ debugBelch("GRAN: end of time-slice is %#lx\n", EndOfTimeSlice));
/* in a GranSim setup the TSO stays on the run queue */
t = CurrentTSO;
POP_RUN_QUEUE(t); // take_off_run_queue(t);
IF_DEBUG(gran,
- fprintf(stderr, "GRAN: About to run current thread, which is\n");
+ debugBelch("GRAN: About to run current thread, which is\n");
G_TSO(t,5));
context_switch = 0; // turned on via GranYield, checking events and time slice
if (spark != (rtsSpark) NULL) {
tso = activateSpark(spark); /* turn the spark into a thread */
IF_PAR_DEBUG(schedule,
- belch("==== schedule: Created TSO %d (%p); %d threads active",
+ debugBelch("==== schedule: Created TSO %d (%p); %d threads active\n",
tso->id, tso, advisory_thread_count));
if (tso==END_TSO_QUEUE) { /* failed to activate spark->back to loop */
- belch("==^^ failed to activate spark");
+ debugBelch("==^^ failed to activate spark\n");
goto next_thread;
} /* otherwise fall through & pick-up new tso */
} else {
IF_PAR_DEBUG(verbose,
- belch("==^^ no local sparks (spark pool contains only NFs: %d)",
+ debugBelch("==^^ no local sparks (spark pool contains only NFs: %d)\n",
spark_queue_len(pool)));
goto next_thread;
}
*/
TIME now = msTime() /*CURRENT_TIME*/;
IF_PAR_DEBUG(verbose,
- belch("-- now=%ld", now));
+ debugBelch("-- now=%ld\n", now));
IF_PAR_DEBUG(verbose,
if (outstandingFishes < RtsFlags.ParFlags.maxFishes &&
(last_fish_arrived_at!=0 &&
last_fish_arrived_at+RtsFlags.ParFlags.fishDelay > now)) {
- belch("--$$ delaying FISH until %ld (last fish %ld, delay %ld, now %ld)",
+ debugBelch("--$$ delaying FISH until %ld (last fish %ld, delay %ld, now %ld)\n",
last_fish_arrived_at+RtsFlags.ParFlags.fishDelay,
last_fish_arrived_at,
RtsFlags.ParFlags.fishDelay, now);
pool = &(MainRegTable.rSparks); // generalise to cap = &MainRegTable
IF_DEBUG(scheduler,
- belch("--=^ %d threads, %d sparks on [%#x]",
+ debugBelch("--=^ %d threads, %d sparks on [%#x]\n",
run_queue_len(), spark_queue_len(pool), CURRENT_PROC));
# if 1
RELEASE_LOCK(&sched_mutex);
IF_DEBUG(scheduler, sched_belch("-->> running thread %ld %s ...",
- t->id, whatNext_strs[t->what_next]));
+ (long)t->id, whatNext_strs[t->what_next]));
#ifdef PROFILING
startHeapProfTimer();
ACQUIRE_LOCK(&sched_mutex);
#ifdef RTS_SUPPORTS_THREADS
- IF_DEBUG(scheduler,fprintf(stderr,"sched (task %p): ", osThreadId()););
+ IF_DEBUG(scheduler,debugBelch("sched (task %p): ", osThreadId()););
#elif !defined(GRAN) && !defined(PAR)
- IF_DEBUG(scheduler,fprintf(stderr,"sched: "););
+ IF_DEBUG(scheduler,debugBelch("sched: "););
#endif
#if defined(PAR)
#endif
// did the task ask for a large block?
- if (cap->r.rHpAlloc > BLOCK_SIZE_W) {
+ if (cap->r.rHpAlloc > BLOCK_SIZE) {
// if so, get one and push it on the front of the nursery.
bdescr *bd;
nat blocks;
- blocks = (nat)BLOCK_ROUND_UP(cap->r.rHpAlloc * sizeof(W_)) / BLOCK_SIZE;
+ blocks = (nat)BLOCK_ROUND_UP(cap->r.rHpAlloc) / BLOCK_SIZE;
- IF_DEBUG(scheduler,belch("--<< thread %ld (%s) stopped: requesting a large block (size %d)",
- t->id, whatNext_strs[t->what_next], blocks));
+ IF_DEBUG(scheduler,debugBelch("--<< thread %ld (%s) stopped: requesting a large block (size %d)\n",
+ (long)t->id, whatNext_strs[t->what_next], blocks));
// don't do this if it would push us over the
// alloc_blocks_lim limit; we'll GC first.
* maybe set context_switch and wait till they all pile in,
* then have them wait on a GC condition variable.
*/
- IF_DEBUG(scheduler,belch("--<< thread %ld (%s) stopped: HeapOverflow",
- t->id, whatNext_strs[t->what_next]));
+ IF_DEBUG(scheduler,debugBelch("--<< thread %ld (%s) stopped: HeapOverflow\n",
+ (long)t->id, whatNext_strs[t->what_next]));
threadPaused(t);
#if defined(GRAN)
ASSERT(!is_on_queue(t,CurrentProc));
// DumpGranEvent(GR_DESCHEDULE, t);
globalParStats.tot_stackover++;
#endif
- IF_DEBUG(scheduler,belch("--<< thread %ld (%s) stopped, StackOverflow",
- t->id, whatNext_strs[t->what_next]));
+ IF_DEBUG(scheduler,debugBelch("--<< thread %ld (%s) stopped, StackOverflow\n",
+ (long)t->id, whatNext_strs[t->what_next]));
/* just adjust the stack for this thread, then pop it back
* on the run queue.
*/
*/
IF_DEBUG(scheduler,
if (t->what_next != prev_what_next) {
- belch("--<< thread %ld (%s) stopped to switch evaluators",
- t->id, whatNext_strs[t->what_next]);
+ debugBelch("--<< thread %ld (%s) stopped to switch evaluators\n",
+ (long)t->id, whatNext_strs[t->what_next]);
} else {
- belch("--<< thread %ld (%s) stopped, yielding",
- t->id, whatNext_strs[t->what_next]);
+ debugBelch("--<< thread %ld (%s) stopped, yielding\n",
+ (long)t->id, whatNext_strs[t->what_next]);
}
);
IF_DEBUG(sanity,
- //belch("&& Doing sanity check on yielding TSO %ld.", t->id);
+ //debugBelch("&& Doing sanity check on yielding TSO %ld.", t->id);
checkTSO(t));
ASSERT(t->link == END_TSO_QUEUE);
ASSERT(!is_on_queue(t,CurrentProc));
IF_DEBUG(sanity,
- //belch("&& Doing sanity check on all ThreadQueues (and their TSOs).");
+ //debugBelch("&& Doing sanity check on all ThreadQueues (and their TSOs).");
checkThreadQsSanity(rtsTrue));
#endif
ContinueThread,
t, (StgClosure*)NULL, (rtsSpark*)NULL);
IF_GRAN_DEBUG(bq,
- belch("GRAN: eventq and runnableq after adding yielded thread to queue again:");
+ debugBelch("GRAN: eventq and runnableq after adding yielded thread to queue again:\n");
G_EVENTQ(0);
G_CURR_THREADQ(0));
#endif /* GRAN */
case ThreadBlocked:
#if defined(GRAN)
IF_DEBUG(scheduler,
- belch("--<< thread %ld (%p; %s) stopped, blocking on node %p [PE %d] with BQ: ",
+ debugBelch("--<< thread %ld (%p; %s) stopped, blocking on node %p [PE %d] with BQ: \n",
t->id, t, whatNext_strs[t->what_next], t->block_info.closure, (t->block_info.closure==(StgClosure*)NULL ? 99 : where_is(t->block_info.closure)));
if (t->block_info.closure!=(StgClosure*)NULL) print_bq(t->block_info.closure));
*/
#elif defined(PAR)
IF_DEBUG(scheduler,
- belch("--<< thread %ld (%p; %s) stopped, blocking on node %p with BQ: ",
+ debugBelch("--<< thread %ld (%p; %s) stopped, blocking on node %p with BQ: \n",
t->id, t, whatNext_strs[t->what_next], t->block_info.closure));
IF_PAR_DEBUG(bq,
* case it'll be on the relevant queue already.
*/
IF_DEBUG(scheduler,
- fprintf(stderr, "--<< thread %d (%s) stopped: ",
+ debugBelch("--<< thread %d (%s) stopped: ",
t->id, whatNext_strs[t->what_next]);
printThreadBlockage(t);
- fprintf(stderr, "\n"));
- fflush(stderr);
+ debugBelch("\n"));
/* Only for dumping event to log file
ToDo: do I need this in GranSim, too?
/* We also end up here if the thread kills itself with an
* uncaught exception, see Exception.hc.
*/
- IF_DEBUG(scheduler,belch("--++ thread %d (%s) finished",
+ IF_DEBUG(scheduler,debugBelch("--++ thread %d (%s) finished\n",
t->id, whatNext_strs[t->what_next]));
#if defined(GRAN)
endThread(t, CurrentProc); // clean-up the thread
ContinueThread,
t, (StgClosure*)NULL, (rtsSpark*)NULL);
IF_GRAN_DEBUG(bq,
- fprintf(stderr, "GRAN: eventq and runnableq after Garbage collection:\n");
+ debugBelch("GRAN: eventq and runnableq after Garbage collection:\n\n");
G_EVENTQ(0);
G_CURR_THREADQ(0));
#endif /* GRAN */
} /* end of while(1) */
IF_PAR_DEBUG(verbose,
- belch("== Leaving schedule() after having received Finish"));
+ debugBelch("== Leaving schedule() after having received Finish\n"));
}
/* ---------------------------------------------------------------------------
* ------------------------------------------------------------------------- */
StgInt
-suspendThread( StgRegTable *reg,
- rtsBool concCall
-#if !defined(DEBUG)
- STG_UNUSED
-#endif
- )
+suspendThread( StgRegTable *reg )
{
nat tok;
Capability *cap;
ACQUIRE_LOCK(&sched_mutex);
IF_DEBUG(scheduler,
- sched_belch("thread %d did a _ccall_gc (is_concurrent: %d)", cap->r.rCurrentTSO->id,concCall));
+ sched_belch("thread %d did a _ccall_gc", cap->r.rCurrentTSO->id));
// XXX this might not be necessary --SDM
cap->r.rCurrentTSO->what_next = ThreadRunGHC;
}
StgRegTable *
-resumeThread( StgInt tok,
- rtsBool concCall STG_UNUSED )
+resumeThread( StgInt tok )
{
StgTSO *tso, **prev;
Capability *cap;
/* check that no more than RtsFlags.ParFlags.maxThreads threads are created */
if (advisory_thread_count >= RtsFlags.ParFlags.maxThreads) {
threadsIgnored++;
- belch("{createThread}Daq ghuH: refusing to create another thread; no more than %d threads allowed (currently %d)",
+ 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;
}
// collect parallel global statistics (currently done together with GC stats)
if (RtsFlags.ParFlags.ParStats.Global &&
RtsFlags.GcFlags.giveStats > NO_GC_STATS) {
- //fprintf(stderr, "Creating thread %d @ %11.2f\n", tso->id, usertime());
+ //debugBelch("Creating thread %d @ %11.2f\n", tso->id, usertime());
globalParStats.tot_threads_created++;
}
#endif
#if defined(GRAN)
IF_GRAN_DEBUG(pri,
- belch("==__ schedule: Created TSO %d (%p);",
+ sched_belch("==__ schedule: Created TSO %d (%p);",
CurrentProc, tso, tso->id));
#elif defined(PAR)
IF_PAR_DEBUG(verbose,
- belch("==__ schedule: Created TSO %d (%p); %d threads active",
- tso->id, tso, advisory_thread_count));
+ sched_belch("==__ schedule: Created TSO %d (%p); %d threads active",
+ (long)tso->id, tso, advisory_thread_count));
#else
IF_DEBUG(scheduler,sched_belch("created thread %ld, stack size = %lx words",
- tso->id, tso->stack_size));
+ (long)tso->id, (long)tso->stack_size));
#endif
return tso;
}
if (RtsFlags.ParFlags.ParStats.Full) {
//ASSERT(run_queue_hd == END_TSO_QUEUE); // I think ...
IF_PAR_DEBUG(verbose,
- belch("==^^ activateSpark: turning spark of closure %p (%s) into a thread",
+ debugBelch("==^^ activateSpark: turning spark of closure %p (%s) into a thread\n",
(StgClosure *)spark, info_type((StgClosure *)spark)));
}
// ToDo: fwd info on local/global spark to thread -- HWL
if (tso->stack_size >= tso->max_stack_size) {
IF_DEBUG(gc,
- belch("@@ threadStackOverflow of TSO %d (%p): stack too large (now %ld; max is %ld)",
- tso->id, tso, tso->stack_size, tso->max_stack_size);
+ debugBelch("@@ threadStackOverflow of TSO %ld (%p): stack too large (now %ld; max is %ld)\n",
+ (long)tso->id, tso, (long)tso->stack_size, (long)tso->max_stack_size);
/* If we're debugging, just print out the top of the stack */
printStackChunk(tso->sp, stg_min(tso->stack+tso->stack_size,
tso->sp+64)));
new_tso_size = round_to_mblocks(new_tso_size); /* Be MBLOCK-friendly */
new_stack_size = new_tso_size - TSO_STRUCT_SIZEW;
- IF_DEBUG(scheduler, fprintf(stderr,"== sched: increasing stack size from %d words to %d.\n", tso->stack_size, new_stack_size));
+ IF_DEBUG(scheduler, debugBelch("== sched: increasing stack size from %d words to %d.\n", tso->stack_size, new_stack_size));
dest = (StgTSO *)allocate(new_tso_size);
TICK_ALLOC_TSO(new_stack_size,0);
dest->mut_link = NULL;
IF_PAR_DEBUG(verbose,
- belch("@@ threadStackOverflow of TSO %d (now at %p): stack size increased to %ld",
+ debugBelch("@@ threadStackOverflow of TSO %d (now at %p): stack size increased to %ld\n",
tso->id, tso, tso->stack_size);
/* If we're debugging, just print out the top of the stack */
printStackChunk(tso->sp, stg_min(tso->stack+tso->stack_size,
}
/* the thread-queue-overhead is accounted for in either Resume or UnblockThread */
IF_GRAN_DEBUG(bq,
- fprintf(stderr," %s TSO %d (%p) [PE %d] (block_info.closure=%p) (next=%p) ,",
+ 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;
- IF_DEBUG(scheduler,belch("-- Waking up thread %ld (%p)",
+ IF_DEBUG(scheduler,debugBelch("-- Waking up thread %ld (%p)\n",
tso->id, tso));
}
#elif defined(PAR)
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?
+ ((StgTSO *)bqe)->link = END_TSO_QUEUE; // debugging?
APPEND_TO_RUN_QUEUE((StgTSO *)bqe);
THREAD_RUNNABLE();
unblockCount(bqe, node);
(StgClosure *)bqe);
# endif
}
- IF_PAR_DEBUG(bq, fprintf(stderr, ", %p (%s)", bqe, info_type((StgClosure*)bqe)));
+ IF_PAR_DEBUG(bq, debugBelch(", %p (%s)\n", bqe, info_type((StgClosure*)bqe)));
return next;
}
ASSERT(tso->why_blocked != NotBlocked);
tso->why_blocked = NotBlocked;
next = tso->link;
+ tso->link = END_TSO_QUEUE;
APPEND_TO_RUN_QUEUE(tso);
THREAD_RUNNABLE();
- IF_DEBUG(scheduler,sched_belch("waking up thread %ld", tso->id));
+ IF_DEBUG(scheduler,sched_belch("waking up thread %ld", (long)tso->id));
return next;
}
#endif
nat len = 0;
IF_GRAN_DEBUG(bq,
- belch("##-_ AwBQ for node %p on PE %d @ %ld by TSO %d (%p): ", \
+ debugBelch("##-_ AwBQ for node %p on PE %d @ %ld by TSO %d (%p): \n", \
node, CurrentProc, CurrentTime[CurrentProc],
CurrentTSO->id, CurrentTSO));
*/
if (CurrentProc!=node_loc) {
IF_GRAN_DEBUG(bq,
- belch("## node %p is on PE %d but CurrentProc is %d (TSO %d); assuming fake fetch and adjusting bitmask (old: %#x)",
+ 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,
- belch("## new bitmask of node %p is %#x",
+ debugBelch("## new bitmask of node %p is %#x\n",
node, node->header.gran.procs));
if (RtsFlags.GranFlags.GranSimStats.Global) {
globalGranStats.tot_fake_fetches++;
((StgRBH *)node)->mut_link = (StgMutClosure *)((StgRBHSave *)bqe)->payload[1];
IF_GRAN_DEBUG(bq,
- belch("## Filled in RBH_Save for %p (%s) at end of AwBQ",
+ debugBelch("## Filled in RBH_Save for %p (%s) at end of AwBQ\n",
node, info_type(node)));
}
globalGranStats.tot_awbq++; // total no. of bqs awakened
}
IF_GRAN_DEBUG(bq,
- fprintf(stderr,"## BQ Stats of %p: [%d entries] %s\n",
+ debugBelch("## BQ Stats of %p: [%d entries] %s\n",
node, len, (bqe!=END_BQ_QUEUE) ? "RBH" : ""));
}
#elif defined(PAR)
ACQUIRE_LOCK(&sched_mutex);
IF_PAR_DEBUG(verbose,
- belch("##-_ AwBQ for node %p on [%x]: ",
+ 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, belch("## ... nothing to unblock so lets just return. RFP (BUG?)"));
+ IF_PAR_DEBUG(verbose, debugBelch("## ... nothing to unblock so lets just return. RFP (BUG?)\n"));
return;
}
#endif
}
IF_DEBUG(scheduler,
- sched_belch("raising exception in thread %ld.", tso->id));
+ sched_belch("raising exception in thread %ld.", (long)tso->id));
// Remove it from any blocking queues
unblockThread(tso);
TICK_ALLOC_UP_THK(words+1,0);
IF_DEBUG(scheduler,
- fprintf(stderr, "sched: Updating ");
+ debugBelch("sched: Updating ");
printPtr((P_)((StgUpdateFrame *)frame)->updatee);
- fprintf(stderr, " with ");
+ debugBelch(" with ");
printObj((StgClosure *)ap);
);
//
if (!closure_IND(((StgUpdateFrame *)frame)->updatee)) {
// revert the black hole
- UPD_IND_NOLOCK(((StgUpdateFrame *)frame)->updatee,ap);
+ UPD_IND_NOLOCK(((StgUpdateFrame *)frame)->updatee,
+ (StgClosure *)ap);
}
sp += sizeofW(StgUpdateFrame) - 1;
sp[0] = (W_)ap; // push onto stack
}
/* -----------------------------------------------------------------------------
+ raiseExceptionHelper
+
+ This function is called by the raise# primitve, just so that we can
+ move some of the tricky bits of raising an exception from C-- into
+ C. Who knows, it might be a useful re-useable thing here too.
+ -------------------------------------------------------------------------- */
+
+StgWord
+raiseExceptionHelper (StgTSO *tso, StgClosure *exception)
+{
+ StgClosure *raise_closure = NULL;
+ StgPtr p, next;
+ StgRetInfoTable *info;
+ //
+ // This closure represents the expression 'raise# E' where E
+ // is the exception raise. It is used to overwrite all the
+ // thunks which are currently under evaluataion.
+ //
+
+ //
+ // LDV profiling: stg_raise_info has THUNK as its closure
+ // type. Since a THUNK takes at least MIN_UPD_SIZE words in its
+ // payload, MIN_UPD_SIZE is more approprate than 1. It seems that
+ // 1 does not cause any problem unless profiling is performed.
+ // However, when LDV profiling goes on, we need to linearly scan
+ // small object pool, where raise_closure is stored, so we should
+ // use MIN_UPD_SIZE.
+ //
+ // raise_closure = (StgClosure *)RET_STGCALL1(P_,allocate,
+ // sizeofW(StgClosure)+1);
+ //
+
+ //
+ // Walk up the stack, looking for the catch frame. On the way,
+ // we update any closures pointed to from update frames with the
+ // raise closure that we just built.
+ //
+ p = tso->sp;
+ while(1) {
+ info = get_ret_itbl((StgClosure *)p);
+ next = p + stack_frame_sizeW((StgClosure *)p);
+ switch (info->i.type) {
+
+ case UPDATE_FRAME:
+ // Only create raise_closure if we need to.
+ if (raise_closure == NULL) {
+ raise_closure =
+ (StgClosure *)allocate(sizeofW(StgClosure)+MIN_UPD_SIZE);
+ SET_HDR(raise_closure, &stg_raise_info, CCCS);
+ raise_closure->payload[0] = exception;
+ }
+ UPD_IND(((StgUpdateFrame *)p)->updatee,raise_closure);
+ p = next;
+ continue;
+
+ case CATCH_FRAME:
+ tso->sp = p;
+ return CATCH_FRAME;
+
+ case STOP_FRAME:
+ tso->sp = p;
+ return STOP_FRAME;
+
+ default:
+ p = next;
+ continue;
+ }
+ }
+}
+
+/* -----------------------------------------------------------------------------
resurrectThreads is called after garbage collection on the list of
threads found to be garbage. Each of these threads will be woken
up and sent a signal: BlockedOnDeadMVar if the thread was blocked
* Locks: sched_mutex is held upon entry and exit.
* -------------------------------------------------------------------------- */
+#if !defined(PAR) && !defined(RTS_SUPPORTS_THREADS)
static void
detectBlackHoles( void )
{
StgTSO *tso = all_threads;
- StgClosure *frame;
+ StgPtr frame;
StgClosure *blocked_on;
StgRetInfoTable *info;
}
blocked_on = tso->block_info.closure;
- frame = (StgClosure *)tso->sp;
+ frame = tso->sp;
while(1) {
- info = get_ret_itbl(frame);
+ info = get_ret_itbl((StgClosure *)frame);
switch (info->i.type) {
case UPDATE_FRAME:
if (((StgUpdateFrame *)frame)->updatee == blocked_on) {
goto done;
}
- frame = (StgClosure *) ((StgUpdateFrame *)frame + 1);
+ frame = (StgPtr)((StgUpdateFrame *)frame + 1);
continue;
case STOP_FRAME:
// normal stack frames; do nothing except advance the pointer
default:
- (StgPtr)frame += stack_frame_sizeW(frame);
+ frame += stack_frame_sizeW((StgClosure *)frame);
}
}
done: ;
}
}
+#endif
/* ----------------------------------------------------------------------------
* Debugging: why is a thread blocked
{
switch (tso->why_blocked) {
case BlockedOnRead:
- fprintf(stderr,"is blocked on read from fd %d", tso->block_info.fd);
+ debugBelch("is blocked on read from fd %d", tso->block_info.fd);
break;
case BlockedOnWrite:
- fprintf(stderr,"is blocked on write to fd %d", tso->block_info.fd);
+ debugBelch("is blocked on write to fd %d", tso->block_info.fd);
break;
#if defined(mingw32_TARGET_OS)
case BlockedOnDoProc:
- fprintf(stderr,"is blocked on proc (request: %d)", tso->block_info.async_result->reqID);
+ debugBelch("is blocked on proc (request: %d)", tso->block_info.async_result->reqID);
break;
#endif
case BlockedOnDelay:
- fprintf(stderr,"is blocked until %d", tso->block_info.target);
+ debugBelch("is blocked until %d", tso->block_info.target);
break;
case BlockedOnMVar:
- fprintf(stderr,"is blocked on an MVar");
+ debugBelch("is blocked on an MVar");
break;
case BlockedOnException:
- fprintf(stderr,"is blocked on delivering an exception to thread %d",
+ debugBelch("is blocked on delivering an exception to thread %d",
tso->block_info.tso->id);
break;
case BlockedOnBlackHole:
- fprintf(stderr,"is blocked on a black hole");
+ debugBelch("is blocked on a black hole");
break;
case NotBlocked:
- fprintf(stderr,"is not blocked");
+ debugBelch("is not blocked");
break;
#if defined(PAR)
case BlockedOnGA:
- fprintf(stderr,"is blocked on global address; local FM_BQ is %p (%s)",
+ 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:
- fprintf(stderr,"is blocked on global address (no send); local FM_BQ is %p (%s)",
+ 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:
- fprintf(stderr,"is blocked on an external call");
+ debugBelch("is blocked on an external call");
break;
case BlockedOnCCall_NoUnblockExc:
- fprintf(stderr,"is blocked on an external call (exceptions were already blocked)");
+ debugBelch("is blocked on an external call (exceptions were already blocked)");
break;
default:
barf("printThreadBlockage: strange tso->why_blocked: %d for TSO %d (%d)",
{
switch (tso->what_next) {
case ThreadKilled:
- fprintf(stderr,"has been killed");
+ debugBelch("has been killed");
break;
case ThreadComplete:
- fprintf(stderr,"has completed");
+ debugBelch("has completed");
break;
default:
printThreadBlockage(tso);
ullong_format_string(TIME_ON_PROC(CurrentProc),
time_string, rtsFalse/*no commas!*/);
- fprintf(stderr, "all threads at [%s]:\n", time_string);
+ debugBelch("all threads at [%s]:\n", time_string);
# elif defined(PAR)
char time_string[TIME_STR_LEN], node_str[NODE_STR_LEN];
ullong_format_string(CURRENT_TIME,
time_string, rtsFalse/*no commas!*/);
- fprintf(stderr,"all threads at [%s]:\n", time_string);
+ debugBelch("all threads at [%s]:\n", time_string);
# else
- fprintf(stderr,"all threads:\n");
+ debugBelch("all threads:\n");
# endif
for (t = all_threads; t != END_TSO_QUEUE; t = t->global_link) {
- fprintf(stderr, "\tthread %d @ %p ", t->id, (void *)t);
+ debugBelch("\tthread %d @ %p ", t->id, (void *)t);
label = lookupThreadLabel(t->id);
- if (label) fprintf(stderr,"[\"%s\"] ",(char *)label);
+ if (label) debugBelch("[\"%s\"] ",(char *)label);
printThreadStatus(t);
- fprintf(stderr,"\n");
+ debugBelch("\n");
}
}
StgTSO *tso;
rtsBool end;
- fprintf(stderr,"## BQ of closure %p (%s): ",
+ debugBelch("## BQ of closure %p (%s): ",
node, info_type(node));
/* should cover all closures that may have a blocking queue */
switch (get_itbl(bqe)->type) {
case TSO:
- fprintf(stderr," TSO %u (%x),",
+ debugBelch(" TSO %u (%x),",
((StgTSO *)bqe)->id, ((StgTSO *)bqe));
break;
case BLOCKED_FETCH:
- fprintf(stderr," BF (node=%p, ga=((%x, %d, %x)),",
+ 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:
- fprintf(stderr," %s (IP %p),",
+ 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" :
break;
}
} /* for */
- fputc('\n', stderr);
+ debugBelch("\n");
}
# elif defined(GRAN)
void
ASSERT(node!=(StgClosure*)NULL); // sanity check
node_loc = where_is(node);
- fprintf(stderr,"## BQ of closure %p (%s) on [PE %d]: ",
+ debugBelch("## BQ of closure %p (%s) on [PE %d]: ",
node, info_type(node), node_loc);
/*
tso_loc = where_is((StgClosure *)bqe);
switch (get_itbl(bqe)->type) {
case TSO:
- fprintf(stderr," TSO %d (%p) on [PE %d],",
+ debugBelch(" TSO %d (%p) on [PE %d],",
((StgTSO *)bqe)->id, (StgTSO *)bqe, tso_loc);
break;
case CONSTR:
- fprintf(stderr," %s (IP %p),",
+ 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" :
break;
}
} /* for */
- fputc('\n', stderr);
+ debugBelch("\n");
}
#else
/*
tso=tso->link) {
ASSERT(tso!=NULL && tso!=END_TSO_QUEUE); // sanity check
ASSERT(get_itbl(tso)->type == TSO); // guess what, sanity check
- fprintf(stderr," TSO %d (%p),", tso->id, tso);
+ debugBelch(" TSO %d (%p),", tso->id, tso);
}
- fputc('\n', stderr);
+ debugBelch("\n");
}
# endif
va_list ap;
va_start(ap,s);
#ifdef RTS_SUPPORTS_THREADS
- fprintf(stderr, "sched (task %p): ", osThreadId());
+ debugBelch("sched (task %p): ", osThreadId());
#elif defined(PAR)
- fprintf(stderr, "== ");
+ debugBelch("== ");
#else
- fprintf(stderr, "sched: ");
+ debugBelch("sched: ");
#endif
- vfprintf(stderr, s, ap);
- fprintf(stderr, "\n");
- fflush(stderr);
+ vdebugBelch(s, ap);
+ debugBelch("\n");
va_end(ap);
}
projects / ghc-hetmet.git / blobdiff