149 lines
4.5 KiB
C
149 lines
4.5 KiB
C
/* ==== pthread.h ============================================================
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* Copyright (c) 1993 by Chris Provenzano, proven@mit.edu
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Chris Provenzano.
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* 4. The name of Chris Provenzano may not be used to endorse or promote
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* products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY CHRIS PROVENZANO ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL CHRIS PROVENZANO BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $Id: pthread.h,v 1.4 1994/02/07 22:02:33 proven Exp $ $provenid: pthread.h,v 1.17 1994/02/07 03:32:00 proven Exp $
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*
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* Description : Basic pthread header.
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*
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* 1.00 93/07/20 proven
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* -Started coding this file.
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*/
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#include <pthread/engine.h>
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#include <pthread/kernel.h>
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#include <pthread/queue.h>
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#include <pthread/mutex.h>
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#include <pthread/cond.h>
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#include <pthread/fd.h>
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#include <pthread/util.h>
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#include <errno.h>
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/* More includes */
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#include <pthread/pthread_once.h>
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/* More includes, that need size_t */
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#include <pthread/pthread_attr.h>
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enum pthread_state {
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PS_RUNNING,
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PS_MUTEX_WAIT,
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PS_COND_WAIT,
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PS_FDLR_WAIT,
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PS_FDLW_WAIT,
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PS_FDR_WAIT,
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PS_FDW_WAIT,
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PS_SLEEP_WAIT,
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PS_JOIN,
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PS_DEAD
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};
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#define PF_DETACHED 0x00000001
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struct pthread {
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struct machdep_pthread machdep_data;
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enum pthread_state state;
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pthread_attr_t attr;
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/* Other flags */
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int flags;
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/* Time until timeout */
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int time_sec;
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int time_usec;
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/* Join queue for waiting threads */
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struct pthread_queue join_queue;
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/* Queue thread is waiting on, (mutexes, cond. etc.) */
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struct pthread_queue *queue;
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/*
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* Thread implementations are just multiple queue type implemenations,
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* Below are the various link lists currently necessary
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* It is possible for a thread to be on multiple, or even all the
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* queues at once, much care must be taken during queue manipulation.
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*
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* The pthread structure must be locked before you can even look at
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* the link lists.
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*/
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struct pthread *pll; /* ALL threads, in any state */
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/* struct pthread *rll; Current run queue, before resced */
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struct pthread *sll; /* For sleeping threads */
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struct pthread *next; /* Standard for mutexes, etc ... */
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/* struct pthread *fd_next; For kernel fd operations */
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int fd; /* Used when thread waiting on fd */
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semaphore lock;
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void *ret;
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int error;
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};
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typedef struct pthread* pthread_t;
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/*
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* Globals
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*/
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extern struct pthread *pthread_run;
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extern struct pthread *pthread_initial;
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extern struct pthread *pthread_link_list;
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extern pthread_attr_t pthread_default_attr;
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extern struct pthread_queue pthread_current_queue;
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extern struct fd_table_entry *fd_table[];
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/*
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* New functions
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*/
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__BEGIN_DECLS
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void pthread_init __P((void));
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int pthread_create __P((pthread_t *, const pthread_attr_t *,
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void * (*start_routine)(void *), void *));
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void pthread_exit __P((void *));
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pthread_t pthread_self __P((void));
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int pthread_equal __P((pthread_t, pthread_t));
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int pthread_join __P((pthread_t, void **));
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int pthread_detach __P((pthread_t));
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#if defined(PTHREAD_KERNEL)
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void pthread_yield __P((void));
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/* Not valid, but I can't spell so this will be caught at compile time */
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#define pthread_yeild(notvalid)
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#endif
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__END_DECLS
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