/* -----------------------------------------------------------------------------
- * $Id: Select.c,v 1.25 2003/02/22 04:51:57 sof Exp $
*
* (c) The GHC Team 1995-2002
*
/* #include "PosixSource.h" */
#include "Rts.h"
-#ifndef mingw32_TARGET_OS
-/* to the end */
-
#include "Schedule.h"
#include "RtsUtils.h"
#include "RtsFlags.h"
#include "Timer.h"
+#include "Itimer.h"
#include "Signals.h"
#include "Capability.h"
#include <errno.h>
#include <string.h>
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
/* last timestamp */
nat timestamp = 0;
sleeping_queue = tso->link;
tso->why_blocked = NotBlocked;
tso->link = END_TSO_QUEUE;
- IF_DEBUG(scheduler,belch("Waking up sleeping thread %d\n", tso->id));
+ IF_DEBUG(scheduler,debugBelch("Waking up sleeping thread %d\n", tso->id));
PUSH_ON_RUN_QUEUE(tso);
flag = rtsTrue;
}
tv.tv_usec = 0;
IF_DEBUG(scheduler,
- belch("scheduler: checking for threads blocked on I/O");
+ debugBelch("scheduler: checking for threads blocked on I/O");
if (wait) {
- belch(" (waiting)");
+ debugBelch(" (waiting)");
}
- belch("\n");
+ debugBelch("\n");
);
/* loop until we've woken up some threads. This loop is needed
unblock_all = rtsTrue;
break;
} else {
- fprintf(stderr,"%d\n", errno);
- fflush(stderr);
perror("select");
barf("select failed");
}
* we could block for a long time before the signal is
* serviced.
*/
+#if defined(RTS_USER_SIGNALS)
if (signals_pending()) {
RELEASE_LOCK(&sched_mutex); /* ToDo: kill */
startSignalHandlers();
ACQUIRE_LOCK(&sched_mutex);
return; /* still hold the lock */
}
+#endif
/* we were interrupted, return to the scheduler immediately.
*/
}
if (ready) {
- IF_DEBUG(scheduler,belch("Waking up blocked thread %d\n", tso->id));
+ IF_DEBUG(scheduler,debugBelch("Waking up blocked thread %d\n", tso->id));
tso->why_blocked = NotBlocked;
tso->link = END_TSO_QUEUE;
PUSH_ON_RUN_QUEUE(tso);
workerWakeupPending = rtsTrue;
}
}
-#endif
-#endif /* !mingw_TARGET_OS */
+/* resetWorkerWakeupPipeAfterFork
+ *
+ * To be called right after a fork().
+ * After the fork(), the worker wakeup pipe will be shared
+ * with the parent process, and that's something we don't want.
+ */
+void
+resetWorkerWakeupPipeAfterFork()
+{
+ if(workerWakeupInited) {
+ close(workerWakeupPipe[0]);
+ close(workerWakeupPipe[1]);
+ }
+ workerWakeupInited = rtsFalse;
+}
+#endif