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105 lines
3.3 KiB
C
105 lines
3.3 KiB
C
/* classes: h_files */
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#ifndef SCM_COOP_THREADS_H
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#define SCM_COOP_THREADS_H
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/* Copyright (C) 1996,1997,1998,2000, 2002, 2006 Free Software Foundation, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/* This file is only included by coop-threads.c while coop-defs.h is
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included by threads.h, which, in turn, is included by
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libguile.h. */
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/* The coop_t struct is declared in coop-defs.h. */
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#include "libguile/__scm.h"
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#include <time.h>
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#include "libguile/coop-defs.h"
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#include "qt/qt.h"
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/* This code is based on a sample thread libraru by David Keppel.
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Portions of this file fall under the following copyright: */
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/*
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* QuickThreads -- Threads-building toolkit.
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* Copyright (c) 1993 by David Keppel
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*
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* Permission to use, copy, modify and distribute this software and
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* its documentation for any purpose and without fee is hereby
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* granted, provided that the above copyright notice and this notice
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* appear in all copies. This software is provided as a
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* proof-of-concept and for demonstration purposes; there is no
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* representation about the suitability of this software for any
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* purpose.
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*/
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/* Each thread starts by calling a user-supplied function of this
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type. */
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typedef void (coop_userf_t)(void *p0);
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/* Call this before any other primitives. */
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SCM_API void coop_init (void);
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/* When one or more threads are created by the main thread,
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the system goes multithread when this is called. It is done
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(no more runable threads) when this returns. */
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SCM_API void coop_start (void);
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/* Create a thread and make it runable. When the thread starts
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running it will call `f' with arguments `p0' and `p1'. */
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SCM_API coop_t *coop_create (coop_userf_t *f, void *p0);
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/* The current thread stops running but stays runable.
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It is an error to call `coop_yield' before `coop_start'
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is called or after `coop_start' returns. */
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SCM_API void coop_yield (void);
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/* Like `coop_yield' but the thread is discarded. Any intermediate
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state is lost. The thread can also terminate by simply
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returning. */
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SCM_API void coop_abort (void);
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/* The following are needed in iselect.c */
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SCM_API coop_t *coop_qget (coop_q_t *);
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SCM_API void coop_qput (coop_q_t *, coop_t *);
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SCM_API void *coop_sleephelp (qt_t *, void *, void *);
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SCM_API coop_t *coop_wait_for_runnable_thread ();
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SCM_API coop_q_t coop_global_runq; /* A queue of runable threads. */
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SCM_API coop_q_t coop_global_sleepq;
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SCM_API coop_q_t coop_tmp_queue;
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SCM_API coop_q_t coop_global_allq; /* A queue of all threads. */
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SCM_API coop_t *coop_global_curr; /* Currently-executing thread. */
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#endif /* SCM_COOP_THREADS_H */
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/*
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Local Variables:
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c-file-style: "gnu"
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End:
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*/
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