Markus Armbruster
24b56b9365
because there's no handler for it. (LCOUNT, oldmask): Remove. (lwpEntryPoint): Don't initialize oldmask. Should have been done in lwpInitSystem() anyway.
99 lines
3 KiB
C
99 lines
3 KiB
C
/*
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* Empire - A multi-player, client/server Internet based war game.
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* Copyright (C) 1994-2006, Dave Pare, Jeff Bailey, Thomas Ruschak,
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* Ken Stevens, Steve McClure
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* Copyright (C) 1991-3 Stephen Crane
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*
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* This program 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 2 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, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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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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* lwpint.h: lwp internal structures
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*
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* Known contributors to this file:
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* Markus Armbruster, 2004-2006
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*/
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#ifndef LWPINT_H
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#define LWPINT_H
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#ifdef UCONTEXT
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#include <ucontext.h>
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#else /* !UCONTEXT */
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#include <setjmp.h>
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#endif /* !UCONTEXT */
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/* process control block. do *not* change the position of context */
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struct lwpProc {
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#ifdef UCONTEXT
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ucontext_t context; /* context structure */
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#else /* !UCONTEXT */
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jmp_buf context; /* processor context area */
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#endif /* !UCONTEXT */
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void *sbtm; /* stack buffer attached to it */
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int size; /* size of stack buffer */
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char *ustack; /* lowest usable stack address */
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int usize; /* size of usable stack */
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void (*entry)(void *); /* entry point */
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int dead; /* whether the process can be rescheduled */
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int pri; /* which scheduling queue we're on */
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long runtime; /* time at which process is restarted */
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int fd; /* fd we're blocking on */
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int argc; /* initial arguments */
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char **argv;
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void *ud; /* user data */
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char *name; /* process name and description */
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char *desc;
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int flags;
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struct lwpProc *next;
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};
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/* queue */
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struct lwpQueue {
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struct lwpProc *head;
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struct lwpProc *tail;
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};
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/* semaphore */
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struct lwpSem {
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int count;
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struct lwpQueue q;
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char *name;
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};
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#define LWP_REDZONE 1024 /* make this a multiple of 1024 */
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/* XXX Note that this assumes sizeof(long) == 4 */
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#define LWP_CHECKMARK 0x5a5a5a5aL
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extern int LwpStackGrowsDown;
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int lwpNewContext(struct lwpProc *, int);
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void lwpSwitchContext(struct lwpProc *, struct lwpProc *);
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void lwpAddTail(struct lwpQueue *, struct lwpProc *);
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struct lwpProc *lwpGetFirst(struct lwpQueue *);
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void lwpReady(struct lwpProc *);
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void lwpReschedule(void);
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void lwpEntryPoint(void);
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void lwpInitSelect(struct lwpProc * self);
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void lwpDestroy(struct lwpProc * proc);
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#endif
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