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/* classes: h_files */
#ifndef SCM_COOP_THREADS_H
#define SCM_COOP_THREADS_H
/* Copyright (C) 1996,1997,1998,2000, 2002 Free Software Foundation, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/* 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. */
SCM_API 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. */
SCM_API 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'. */
SCM_API 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. */
SCM_API 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. */
SCM_API void coop_abort (void);
/* The following are needed in iselect.c */
SCM_API coop_t *coop_qget (coop_q_t *);
SCM_API void coop_qput (coop_q_t *, coop_t *);
SCM_API void *coop_sleephelp (qt_t *, void *, void *);
SCM_API coop_t *coop_wait_for_runnable_thread ();
SCM_API coop_q_t coop_global_runq; /* A queue of runable threads. */
SCM_API coop_q_t coop_global_sleepq;
SCM_API coop_q_t coop_tmp_queue;
SCM_API coop_q_t coop_global_allq; /* A queue of all threads. */
SCM_API coop_t *coop_global_curr; /* Currently-executing thread. */
#endif /* SCM_COOP_THREADS_H */
/*
Local Variables:
c-file-style: "gnu"
End:
*/
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