X-Git-Url: https://git.hcoop.net/bpt/emacs.git/blobdiff_plain/76b6f7075970e492eba3cf3f4411fcfc4ff3bdcd..72af86bd8cf1812d1fcc8924c4093d692040a664:/src/filelock.c

diff --git a/src/filelock.c b/src/filelock.c
index c845a804ae..769e5aa7a9 100644
--- a/src/filelock.c
+++ b/src/filelock.c
@@ -1,6 +1,6 @@
 /* Lock files for editing.
    Copyright (C) 1985, 1986, 1987, 1993, 1994, 1996, 1998, 1999, 2000, 2001,
-                 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
+                 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
                  Free Software Foundation, Inc.
 
 This file is part of GNU Emacs.
@@ -24,6 +24,7 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 #include <sys/stat.h>
 #include <signal.h>
 #include <stdio.h>
+#include <setjmp.h>
 
 #ifdef HAVE_PWD_H
 #include <pwd.h>
@@ -46,9 +47,6 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 #endif /* __FreeBSD__ */
 
 #include <errno.h>
-#ifndef errno
-extern int errno;
-#endif
 
 #include "lisp.h"
 #include "buffer.h"
@@ -62,7 +60,9 @@ Lisp_Object Vtemporary_file_directory;
 
 #ifdef CLASH_DETECTION
 
+#ifdef HAVE_UTMP_H
 #include <utmp.h>
+#endif
 
 #if !defined (S_ISLNK) && defined (S_IFLNK)
 #define S_ISLNK(m) (((m) & S_IFMT) == S_IFLNK)
@@ -122,11 +122,11 @@ static int boot_time_initialized;
 extern Lisp_Object Vshell_file_name;
 
 #ifdef BOOT_TIME
-static void get_boot_time_1 P_ ((char *, int));
+static void get_boot_time_1 (char *, int);
 #endif
 
 static time_t
-get_boot_time ()
+get_boot_time (void)
 {
 #if defined (BOOT_TIME)
   int counter;
@@ -253,9 +253,7 @@ get_boot_time ()
    Success is indicated by setting BOOT_TIME to a larger value.  */
 
 void
-get_boot_time_1 (filename, newest)
-     char *filename;
-     int newest;
+get_boot_time_1 (char *filename, int newest)
 {
   struct utmp ut, *utp;
   int desc;
@@ -326,9 +324,7 @@ typedef struct
    fill_in_lock_file_name (lock, (file)))
 
 static void
-fill_in_lock_file_name (lockfile, fn)
-     register char *lockfile;
-     register Lisp_Object fn;
+fill_in_lock_file_name (register char *lockfile, register Lisp_Object fn)
 {
   register char *p;
   struct stat st;
@@ -364,9 +360,7 @@ fill_in_lock_file_name (lockfile, fn)
    Return 1 if successful, 0 if not.  */
 
 static int
-lock_file_1 (lfname, force)
-     char *lfname;
-     int force;
+lock_file_1 (char *lfname, int force)
 {
   register int err;
   time_t boot_time;
@@ -408,8 +402,7 @@ lock_file_1 (lfname, force)
 /* Return 1 if times A and B are no more than one second apart.  */
 
 int
-within_one_second (a, b)
-     time_t a, b;
+within_one_second (time_t a, time_t b)
 {
   return (a - b >= -1 && a - b <= 1);
 }
@@ -420,12 +413,10 @@ within_one_second (a, b)
    or -1 if something is wrong with the locking mechanism.  */
 
 static int
-current_lock_owner (owner, lfname)
-     lock_info_type *owner;
-     char *lfname;
+current_lock_owner (lock_info_type *owner, char *lfname)
 {
 #ifndef index
-  extern char *rindex (), *index ();
+  extern char *rindex (const char *, int), *index (const char *, int);
 #endif
   int len, ret;
   int local_owner = 0;
@@ -540,9 +531,7 @@ current_lock_owner (owner, lfname)
    Return -1 if cannot lock for any other reason.  */
 
 static int
-lock_if_free (clasher, lfname)
-     lock_info_type *clasher;
-     register char *lfname;
+lock_if_free (lock_info_type *clasher, register char *lfname)
 {
   while (lock_file_1 (lfname, 0) == 0)
     {
@@ -585,8 +574,7 @@ lock_if_free (clasher, lfname)
    take away the lock, or return nil meaning ignore the lock.  */
 
 void
-lock_file (fn)
-     Lisp_Object fn;
+lock_file (Lisp_Object fn)
 {
   register Lisp_Object attack, orig_fn, encoded_fn;
   register char *lfname, *locker;
@@ -645,8 +633,7 @@ lock_file (fn)
 }
 
 void
-unlock_file (fn)
-     register Lisp_Object fn;
+unlock_file (register Lisp_Object fn)
 {
   register char *lfname;
 
@@ -660,7 +647,7 @@ unlock_file (fn)
 }
 
 void
-unlock_all_files ()
+unlock_all_files (void)
 {
   register Lisp_Object tail;
   register struct buffer *b;
@@ -709,8 +696,7 @@ should not be locked in that case.  */)
 /* Unlock the file visited in buffer BUFFER.  */
 
 void
-unlock_buffer (buffer)
-     struct buffer *buffer;
+unlock_buffer (struct buffer *buffer)
 {
   if (BUF_SAVE_MODIFF (buffer) < BUF_MODIFF (buffer)
       && STRINGP (buffer->file_truename))
@@ -750,14 +736,14 @@ t if it is locked by you, else a string saying which user has locked it.  */)
 /* Initialization functions.  */
 
 void
-init_filelock ()
+init_filelock (void)
 {
   boot_time = 0;
   boot_time_initialized = 0;
 }
 
 void
-syms_of_filelock ()
+syms_of_filelock (void)
 {
   DEFVAR_LISP ("temporary-file-directory", &Vtemporary_file_directory,
 	       doc: /* The directory for writing temporary files.  */);