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/* classes: h_files */
#ifndef COOP_THREADSH
#define COOP_THREADSH
/* Copyright (C) 1996, 1997, 1998, 2000 Free Software Foundation, Inc.
*
* This program 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.
*
* This program 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 this software; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307 USA
*
* As a special exception, the Free Software Foundation gives permission
* for additional uses of the text contained in its release of GUILE.
*
* The exception is that, if you link the GUILE library with other files
* to produce an executable, this does not by itself cause the
* resulting executable to be covered by the GNU General Public License.
* Your use of that executable is in no way restricted on account of
* linking the GUILE library code into it.
*
* This exception does not however invalidate any other reasons why
* the executable file might be covered by the GNU General Public License.
*
* This exception applies only to the code released by the
* Free Software Foundation under the name GUILE. If you copy
* code from other Free Software Foundation releases into a copy of
* GUILE, as the General Public License permits, the exception does
* not apply to the code that you add in this way. To avoid misleading
* anyone as to the status of such modified files, you must delete
* this exception notice from them.
*
* If you write modifications of your own for GUILE, it is your choice
* whether to permit this exception to apply to your modifications.
* If you do not wish that, delete this exception notice. */
/* This file is only included by coop-threads.c while coop-defs.h is
included by threads.h, which, in turn, is included by
libguile.h. */
/* The coop_t struct is declared in coop-defs.h. */
#include "libguile/__scm.h"
#include <time.h>
#include "libguile/coop-defs.h"
#include "qt/qt.h"
/* This code is based on a sample thread libraru by David Keppel.
Portions of this file fall under the following copyright: */
/*
* QuickThreads -- Threads-building toolkit.
* Copyright (c) 1993 by David Keppel
*
* Permission to use, copy, modify and distribute this software and
* its documentation for any purpose and without fee is hereby
* granted, provided that the above copyright notice and this notice
* appear in all copies. This software is provided as a
* proof-of-concept and for demonstration purposes; there is no
* representation about the suitability of this software for any
* purpose.
*/
/* Each thread starts by calling a user-supplied function of this
type. */
typedef void (coop_userf_t)(void *p0);
/* Call this before any other primitives. */
extern void coop_init (void);
/* When one or more threads are created by the main thread,
the system goes multithread when this is called. It is done
(no more runable threads) when this returns. */
extern void coop_start (void);
/* Create a thread and make it runable. When the thread starts
running it will call `f' with arguments `p0' and `p1'. */
extern coop_t *coop_create (coop_userf_t *f, void *p0);
/* The current thread stops running but stays runable.
It is an error to call `coop_yield' before `coop_start'
is called or after `coop_start' returns. */
extern void coop_yield (void);
/* Like `coop_yield' but the thread is discarded. Any intermediate
state is lost. The thread can also terminate by simply
returning. */
extern void coop_abort (void);
/* The following are needed in iselect.c */
extern coop_t *coop_qget (coop_q_t *);
extern void coop_qput (coop_q_t *, coop_t *);
extern void *coop_sleephelp (qt_t *, void *, void *);
#ifdef GUILE_ISELECT
extern coop_t *coop_wait_for_runnable_thread ();
#endif
extern coop_q_t coop_global_runq; /* A queue of runable threads. */
extern coop_q_t coop_global_sleepq;
extern coop_q_t coop_tmp_queue;
extern coop_q_t coop_global_allq; /* A queue of all threads. */
extern coop_t *coop_global_curr; /* Currently-executing thread. */
#endif /* COOP_THREADSH */
/*
Local Variables:
c-file-style: "gnu"
End:
*/
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