Markus Armbruster
2e4793408c
LWP's use of sigset_t is problematic. To iterate over a sigset_t, it uses NSIG, which is not portable: BSD and System V provide it, but it's not POSIX. To record signals caught, it updates a sigset_t variable from a signal handler. The variable isn't volatile, because we'd have to cast away volatile for sigaddset(). Replace sigset_t by an array of signal numbers terminated with 0. Since lwpInitSigWait() needs to store the signal set for lwpCatchAwaitedSig() anyway, there is no need to pass it to lwpSigWait(). Drop its parameter. Signed-off-by: Markus Armbruster <armbru@pond.sub.org>
82 lines
2.5 KiB
C
82 lines
2.5 KiB
C
/*
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* Empire - A multi-player, client/server Internet based war game.
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* Copyright (C) 1994-2020, Dave Pare, Jeff Bailey, Thomas Ruschak,
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* Ken Stevens, Steve McClure, Markus Armbruster
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* Copyright (C) 1991-3 Stephen Crane
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*
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* Empire 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 3 of the License, or
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* (at your option) 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 program. If not, see <http://www.gnu.org/licenses/>.
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*
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* ---
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*
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* See files README, COPYING and CREDITS in the root of the source
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* tree for related information and legal notices. It is expected
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* that future projects/authors will amend these files as needed.
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*
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* ---
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*
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* lwp.h -- prototypes and structures for lightweight processes
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*
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* Known contributors to this file:
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* Markus Armbruster, 2004-2020
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* Ron Koenderink, 2007-2009
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*/
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/*
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* author: Stephen Crane, (jsc@doc.ic.ac.uk), Department of Computing,
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* Imperial College of Science, Technology and Medicine, 180 Queen's
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* Gate, London SW7 2BZ, England.
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*/
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#ifndef LWP_H
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#define LWP_H
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#include <sys/time.h>
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#define LWP_STACKCHECK 0x1
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#define LWP_PRINT 0x2
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struct lwpProc;
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struct lwp_rwlock;
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#define LWP_FD_READ 0x1
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#define LWP_FD_WRITE 0x2
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#define LWP_MAX_PRIO 8
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struct lwpProc *lwpInitSystem(int prio, void **ctxp, int flags, int[]);
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struct lwpProc *lwpCreate(int prio, void (*)(void *), int size,
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int flags, char *name,
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int argc, char **argv, void *ud);
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void lwpExit(void);
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void lwpTerminate(struct lwpProc *);
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void lwpYield(void);
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int lwpSleepFd(int fd, int flags, struct timeval *timeout);
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int lwpSleepUntil(time_t until);
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void lwpWakeup(struct lwpProc *);
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int lwpSigWait(int *sig);
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void *lwpGetUD(struct lwpProc *);
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void lwpSetUD(struct lwpProc *, char *ud);
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int lwpSetPriority(int prio);
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char *lwpName(struct lwpProc *);
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void lwpSetName(struct lwpProc *, char *name);
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struct lwp_rwlock *lwp_rwlock_create(char *);
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void lwp_rwlock_destroy(struct lwp_rwlock *);
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void lwp_rwlock_wrlock(struct lwp_rwlock *);
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void lwp_rwlock_rdlock(struct lwp_rwlock *);
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void lwp_rwlock_unlock(struct lwp_rwlock *);
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extern struct lwpProc *LwpCurrent;
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#endif
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