2 * Empire - A multi-player, client/server Internet based war game.
3 * Copyright (C) 1994-2006, Dave Pare, Jeff Bailey, Thomas Ruschak,
4 * Ken Stevens, Steve McClure
5 * Copyright (C) 1991-3 Stephen Crane
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 * See the "LEGAL", "LICENSE", "CREDITS" and "README" files for all the
24 * related information and legal notices. It is expected that any future
25 * projects/authors will amend these files as needed.
29 * lwpint.h: lwp internal structures
31 * Known contributors to this file:
32 * Markus Armbruster, 2004-2006
42 #endif /* !UCONTEXT */
44 /* `liveness' counter: check signals every `n' visits to the scheduler */
45 /* note: the lower this value, the more responsive the system but the */
46 /* more inefficient the context switch time */
49 /* process control block. do *not* change the position of context */
52 ucontext_t context; /* context structure */
54 jmp_buf context; /* processor context area */
55 #endif /* !UCONTEXT */
56 void *sbtm; /* stack buffer attached to it */
57 int size; /* size of stack buffer */
58 char *ustack; /* lowest usable stack address */
59 int usize; /* size of usable stack */
60 void (*entry)(void *); /* entry point */
61 int dead; /* whether the process can be rescheduled */
62 int pri; /* which scheduling queue we're on */
63 long runtime; /* time at which process is restarted */
64 int fd; /* fd we're blocking on */
65 int argc; /* initial arguments */
67 void *ud; /* user data */
68 char *name; /* process name and description */
87 #define LWP_REDZONE 1024 /* make this a multiple of 1024 */
89 /* XXX Note that this assumes sizeof(long) == 4 */
90 #define LWP_CHECKMARK 0x5a5a5a5aL
92 extern int LwpStackGrowsDown;
94 int lwpNewContext(struct lwpProc *, int);
95 void lwpSwitchContext(struct lwpProc *, struct lwpProc *);
96 void lwpAddTail(struct lwpQueue *, struct lwpProc *);
97 struct lwpProc *lwpGetFirst(struct lwpQueue *);
98 void lwpReady(struct lwpProc *);
99 void lwpReschedule(void);
100 void lwpEntryPoint(void);
101 void lwpInitSelect(struct lwpProc * self);
102 void lwpDestroy(struct lwpProc * proc);