NetBSD/lib/libpthread/include/pthread.h

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/* ==== pthread.h ============================================================
1993-12-20 22:30:07 +03:00
* Copyright (c) 1993 by Chris Provenzano, proven@mit.edu
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Chris Provenzano.
* 4. The name of Chris Provenzano may not be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY CHRIS PROVENZANO ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL CHRIS PROVENZANO BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $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 $
*
* Description : Basic pthread header.
*
* 1.00 93/07/20 proven
* -Started coding this file.
*/
#include <pthread/engine.h>
#include <pthread/kernel.h>
#include <pthread/queue.h>
#include <pthread/mutex.h>
#include <pthread/cond.h>
#include <pthread/fd.h>
#include <pthread/util.h>
#include <errno.h>
/* More includes */
#include <pthread/pthread_once.h>
/* More includes, that need size_t */
#include <pthread/pthread_attr.h>
enum pthread_state {
PS_RUNNING,
PS_MUTEX_WAIT,
PS_COND_WAIT,
PS_FDLR_WAIT,
PS_FDLW_WAIT,
PS_FDR_WAIT,
PS_FDW_WAIT,
PS_SLEEP_WAIT,
PS_JOIN,
PS_DEAD
};
#define PF_DETACHED 0x00000001
struct pthread {
struct machdep_pthread machdep_data;
enum pthread_state state;
pthread_attr_t attr;
/* Other flags */
int flags;
/* Time until timeout */
int time_sec;
int time_usec;
/* Join queue for waiting threads */
struct pthread_queue join_queue;
/* Queue thread is waiting on, (mutexes, cond. etc.) */
struct pthread_queue *queue;
/*
* Thread implementations are just multiple queue type implemenations,
* Below are the various link lists currently necessary
* It is possible for a thread to be on multiple, or even all the
* queues at once, much care must be taken during queue manipulation.
*
* The pthread structure must be locked before you can even look at
* the link lists.
*/
struct pthread *pll; /* ALL threads, in any state */
/* struct pthread *rll; Current run queue, before resced */
struct pthread *sll; /* For sleeping threads */
struct pthread *next; /* Standard for mutexes, etc ... */
/* struct pthread *fd_next; For kernel fd operations */
int fd; /* Used when thread waiting on fd */
semaphore lock;
void *ret;
int error;
};
typedef struct pthread* pthread_t;
/*
* Globals
*/
extern struct pthread *pthread_run;
extern struct pthread *pthread_initial;
extern struct pthread *pthread_link_list;
extern pthread_attr_t pthread_default_attr;
extern struct pthread_queue pthread_current_queue;
extern struct fd_table_entry *fd_table[];
/*
* New functions
*/
__BEGIN_DECLS
void pthread_init __P((void));
int pthread_create __P((pthread_t *, const pthread_attr_t *,
void * (*start_routine)(void *), void *));
void pthread_exit __P((void *));
pthread_t pthread_self __P((void));
int pthread_equal __P((pthread_t, pthread_t));
int pthread_join __P((pthread_t, void **));
int pthread_detach __P((pthread_t));
#if defined(PTHREAD_KERNEL)
void pthread_yield __P((void));
/* Not valid, but I can't spell so this will be caught at compile time */
#define pthread_yeild(notvalid)
#endif
__END_DECLS