* Chill runtime moved into toplevel libchill.

        * Makefile.in Revamped due to move.  Add multilib support.
        * configure.in: Similarly.  Use autoconf.
        * powerset.h: Do not depend on BITS_PER_UNIT.

From-SVN: r22238

1 files changed, 79 insertions, 0 deletions

diff --git a/libchill/queuelength.c b/libchill/queuelength.c
new file mode 100644
index 0000000..417d175
--- /dev/null
+++ b/libchill/queuelength.c
@@ -0,0 +1,79 @@
+/* Implement tasking-related runtime actions for CHILL.
+   Copyright (C) 1992,1993 Free Software Foundation, Inc.
+   Author: Wilfried Moser
+
+This file is part of GNU CC.
+
+GNU CC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU CC is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU CC; see the file COPYING.  If not, write to
+the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
+
+#include "rtltypes.h"
+#include "rts.h"
+
+/*
+ * function __queue_length
+ *
+ * parameters:
+ *     buf_ev      Buffer or event location
+ *     is_event    0 .. buf_ev is a buffer location
+ *                 1 .. buf_ev is an event location
+ *
+ * returns:
+ *     int         number of delayed processeson an event location
+ *                 or number of send delayed processes on a buffer
+ *
+ * exceptions:
+ *     none
+ *
+ * abstract:
+ *     implements the QUEUE_LENGTH built-in.
+ *
+ */
+
+int
+__queue_length (buf_ev, is_event)
+     void  *buf_ev;
+     int    is_event;
+{
+  int            retval = 0;
+  
+  /* if buf_ev == 0 then we don't have anything */
+  if (buf_ev == 0)
+    return 0;
+
+  if (is_event)
+    {
+      /* process an event queue */
+      Event_Queue   *ev = buf_ev;
+
+      while (ev)
+	{
+	  retval++;
+	  ev = ev->forward;
+	}
+    }
+  else
+    {
+      /* process a buffer queue */
+      Buffer_Queue *bq = buf_ev;
+      Buffer_Send_Queue *bsq = bq->sendqueue;
+
+      while (bsq)
+	{
+	  retval++;
+	  bsq = bsq->forward;
+	}
+    }
+  return retval;
+}