| /* 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, 59 Temple Place - Suite 330, |
| Boston, MA 02111-1307, USA. */ |
| |
| /* As a special exception, if you link this library with other files, |
| some of which are compiled with GCC, to produce an executable, |
| this library does not by itself cause the resulting executable |
| to be covered by the GNU General Public License. |
| This exception does not however invalidate any other reasons why |
| the executable file might be covered by the GNU General Public License. */ |
| |
| #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; |
| } |