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131 lines
4.5 KiB
C
131 lines
4.5 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 Free Software Foundation, Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this software; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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* Boston, MA 02111-1307 USA
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*
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* As a special exception, the Free Software Foundation gives permission
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* for additional uses of the text contained in its release of GUILE.
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*
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* The exception is that, if you link the GUILE library with other files
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* to produce an executable, this does not by itself cause the
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* resulting executable to be covered by the GNU General Public License.
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* Your use of that executable is in no way restricted on account of
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* linking the GUILE library code into it.
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*
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* This exception does not however invalidate any other reasons why
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* the executable file might be covered by the GNU General Public License.
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*
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* This exception applies only to the code released by the
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* Free Software Foundation under the name GUILE. If you copy
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* code from other Free Software Foundation releases into a copy of
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* GUILE, as the General Public License permits, the exception does
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* not apply to the code that you add in this way. To avoid misleading
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* anyone as to the status of such modified files, you must delete
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* this exception notice from them.
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*
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* If you write modifications of your own for GUILE, it is your choice
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* whether to permit this exception to apply to your modifications.
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* If you do not wish that, delete this exception notice. */
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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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#ifdef GUILE_ISELECT
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SCM_API coop_t *coop_wait_for_runnable_thread ();
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#endif
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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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