2 * Empire - A multi-player, client/server Internet based war game.
3 * Copyright (C) 1994-2021, Dave Pare, Jeff Bailey, Thomas Ruschak,
4 * Ken Stevens, Steve McClure, Markus Armbruster
5 * Copyright (C) 1991-3 Stephen Crane
7 * Empire 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 3 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, see <http://www.gnu.org/licenses/>.
22 * See files README, COPYING and CREDITS in the root of the source
23 * tree for related information and legal notices. It is expected
24 * that future projects/authors will amend these files as needed.
28 * lwpint.h: lwp internal structures
30 * Known contributors to this file:
31 * Markus Armbruster, 2004-2020
42 /* process control block. do *not* change the position of context */
44 ucontext_t context; /* context structure */
45 void *sbtm; /* stack buffer attached to it */
46 int size; /* size of stack buffer */
47 char *ustack; /* lowest usable stack address */
48 int usize; /* size of usable stack */
49 void (*entry)(void *); /* entry point */
50 int dead; /* whether the process can be rescheduled */
51 int pri; /* which scheduling queue we're on */
52 time_t runtime; /* time at which process is restarted */
53 int fd; /* fd we're blocking on */
54 int fd_ready; /* woken up because fd was ready */
55 int argc; /* initial arguments */
57 void *ud; /* user data */
58 char *name; /* process name, for debugging */
69 #define LWP_REDZONE 1024 /* make this a multiple of 1024 */
71 /* XXX Note that this assumes sizeof(int) == 4 */
72 #define LWP_CHECKMARK 0x5a5a5a5a
74 int lwpNewContext(struct lwpProc *);
75 void lwpSwitchContext(struct lwpProc *, struct lwpProc *);
76 void lwpAddTail(struct lwpQueue *, struct lwpProc *);
77 struct lwpProc *lwpGetFirst(struct lwpQueue *);
78 void lwpReady(struct lwpProc *);
79 void lwpReschedule(void);
80 void lwpEntryPoint(void);
81 void lwpInitSelect(struct lwpProc *);
82 void lwpWakeupSleep(void);
83 void lwpSelect(void *);
84 void lwpInitSigWait(int[]);
85 void lwpSigWakeup(void);
86 void lwpStatus(struct lwpProc *, char *, ...)
87 ATTRIBUTE((format (printf, 2, 3)));