empserver/include/lwp.h
2005-12-29 10:16:01 +00:00

64 lines
2 KiB
C

/*
* lwp.h -- prototypes and structures for lightweight processes
* Copyright (C) 1991-3 Stephen Crane.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* author: Stephen Crane, (jsc@doc.ic.ac.uk), Department of Computing,
* Imperial College of Science, Technology and Medicine, 180 Queen's
* Gate, London SW7 2BZ, England.
*/
#ifndef LWP_H
#define LWP_H
#include "misc.h"
#define LWP_STACKCHECK 0x1
#define LWP_PRINT 0x2
struct lwpProc;
struct lwpSem;
#define LWP_FD_READ 0x1
#define LWP_FD_WRITE 0x2
#define LWP_MAX_PRIO 8
struct lwpProc *lwpInitSystem(int prio, char **ctxp, int flags);
struct lwpProc *lwpCreate(int prio, void (*)(void *), int size,
int flags, char *name, char *desc,
int argc, char **argv, void *ud);
void lwpExit(void);
void lwpTerminate(struct lwpProc * p);
void lwpYield(void);
void lwpSleepFd(int fd, int flags);
void lwpSleepUntil(long until);
void lwpWakeupFd(struct lwpProc * p);
void *lwpGetUD(struct lwpProc * p);
void lwpSetUD(struct lwpProc * p, char *ud);
void lwpSetDesc(struct lwpProc * p, char *name, char *desc);
int lwpSetPriority(int prio);
struct lwpSem *lwpCreateSem(char *name, int count);
void lwpSignal(struct lwpSem *);
void lwpWait(struct lwpSem *);
void lwpSelect(void *);
void lwpStatus(struct lwpProc *proc, char *format, ...)
ATTRIBUTE((format (printf, 2, 3)));
extern struct lwpProc *LwpCurrent;
#endif