/*
* Copyright (C) 2006 Ondrej Palkovsky
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - 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.
* - The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 THE AUTHOR 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.
*/
#ifndef __LIBC__PSTHREAD_H__
#define __LIBC__PSTHREAD_H__
#include <libarch/psthread.h>
#include <libadt/list.h>
#include <libarch/thread.h>
#ifndef context_set
#define context_set(c, _pc, stack, size, ptls) \
(c)->pc = (sysarg_t) (_pc); \
(c)->sp = ((sysarg_t) (stack)) + (size) - SP_DELTA; \
(c)->tls = (sysarg_t) (ptls);
#endif /* context_set */
typedef sysarg_t pstid_t;
struct psthread_data {
link_t link;
context_t ctx;
void *stack;
void *arg;
int (*func)(void *);
tcb_t *tcb;
struct psthread_data *waiter;
int finished;
int retval;
int flags;
};
typedef struct psthread_data psthread_data_t;
extern int context_save(context_t *c);
extern void context_restore(context_t *c) __attribute__ ((noreturn));
pstid_t psthread_create(int (*func)(void *), void *arg);
int psthread_schedule_next(void);
int psthread_join(pstid_t psthrid);
psthread_data_t * psthread_setup(tcb_t *tcb);
void psthread_teardown(psthread_data_t *pt);
#endif