Update copyright notice

[empserver] / src / lib / lwp / lwpint.h

diff --git a/src/lib/lwp/lwpint.h b/src/lib/lwp/lwpint.h
index 2db453b478427df1237511ed70a4dd4e1095ad28..a41fdc860bb479b703ce5e74b278971f0c1ca018 100644 (file)
--- a/src/lib/lwp/lwpint.h
+++ b/src/lib/lwp/lwpint.h
@@ -1,47 +1,48 @@
 /*
- * lwpint.h -- lwp internal structures
+ *  Empire - A multi-player, client/server Internet based war game.
+ *  Copyright (C) 1994-2017, Dave Pare, Jeff Bailey, Thomas Ruschak,
+ *                Ken Stevens, Steve McClure, Markus Armbruster
+ *  Copyright (C) 1991-3 Stephen Crane
  *
- * Copyright (C) 1991-3 Stephen Crane.
+ *  Empire is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
  *
- * 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.
+ *  This program 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 General Public License for more details.
  *
- * 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.
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ *  ---
+ *
+ *  See files README, COPYING and CREDITS in the root of the source
+ *  tree for related information and legal notices.  It is expected
+ *  that future projects/authors will amend these files as needed.
+ *
+ *  ---
+ *
+ *  lwpint.h: lwp internal structures
+ *
+ *  Known contributors to this file:
+ *     Markus Armbruster, 2004-2009
  */
+
 #ifndef LWPINT_H
 #define LWPINT_H
 
-#ifdef UCONTEXT
+#include <signal.h>
+#include <time.h>
 #include <ucontext.h>
-#else  /* !UCONTEXT */
-#include <setjmp.h>
-#endif /* !UCONTEXT */
 
-/* `liveness' counter: check signals every `n' visits to the scheduler */
-/* note: the lower this value, the more responsive the system but the */
-/* more inefficient the context switch time */
-#define LCOUNT -1
+#include "misc.h"
 
 /* process control block.  do *not* change the position of context */
 struct lwpProc {
-#ifdef UCONTEXT
     ucontext_t context;                /* context structure */
-#else  /* !UCONTEXT */
-    jmp_buf context;           /* processor context area */
-#endif /* !UCONTEXT */
     void *sbtm;                        /* stack buffer attached to it */
     int size;                  /* size of stack buffer */
     char *ustack;              /* lowest usable stack address */
@@ -49,13 +50,13 @@ struct lwpProc {
     void (*entry)(void *);     /* entry point */
     int dead;                  /* whether the process can be rescheduled */
     int pri;                   /* which scheduling queue we're on */
-    long runtime;              /* time at which process is restarted */
+    time_t runtime;            /* time at which process is restarted */
     int fd;                    /* fd we're blocking on */
+    int fd_ready;              /* woken up because fd was ready */
     int argc;                  /* initial arguments */
     char **argv;
     void *ud;                  /* user data */
-    char *name;                        /* process name and description */
-    char *desc;
+    char *name;                        /* process name, for debugging */
     int flags;
     struct lwpProc *next;
 };
@@ -66,28 +67,24 @@ struct lwpQueue {
     struct lwpProc *tail;
 };
 
-/* semaphore */
-struct lwpSem {
-    int count;
-    struct lwpQueue q;
-    char *name;
-};
-
 #define LWP_REDZONE    1024    /* make this a multiple of 1024 */
 
-/* XXX Note that this assumes sizeof(long) == 4 */
-#define LWP_CHECKMARK  0x5a5a5a5aL
-
-extern int LwpStackGrowsDown;
+/* XXX Note that this assumes sizeof(int) == 4 */
+#define LWP_CHECKMARK  0x5a5a5a5a
 
-int lwpNewContext(struct lwpProc *, int);
+int lwpNewContext(struct lwpProc *);
 void lwpSwitchContext(struct lwpProc *, struct lwpProc *);
 void lwpAddTail(struct lwpQueue *, struct lwpProc *);
 struct lwpProc *lwpGetFirst(struct lwpQueue *);
 void lwpReady(struct lwpProc *);
 void lwpReschedule(void);
 void lwpEntryPoint(void);
-void lwpInitSelect(struct lwpProc * self);
-void lwpDestroy(struct lwpProc * proc);
+void lwpInitSelect(struct lwpProc *);
+void lwpWakeupSleep(void);
+void lwpSelect(void *);
+void lwpInitSigWait(sigset_t *);
+void lwpSigWakeup(void);
+void lwpStatus(struct lwpProc *, char *, ...)
+    ATTRIBUTE((format (printf, 2, 3)));
 
 #endif