- Fix seg fault if user labels a drive directory bug #513

[bacula/bacula] / bacula / src / lib / rwlock.h

diff --git a/bacula/src/lib/rwlock.h b/bacula/src/lib/rwlock.h
index 6e2a5942389c4cd2250d17737990bc1ec08a309a..8abd1b8311ea7b100c97debf610094b5cb774779 100644 (file)
--- a/bacula/src/lib/rwlock.h
+++ b/bacula/src/lib/rwlock.h
@@ -1,6 +1,6 @@
 /*
  * Bacula Thread Read/Write locking code. It permits
- *  multiple readers but only one writer.                 
+ *  multiple readers but only one writer.
  *
  *  Kern Sibbald, January MMI
  *
@@ -11,7 +11,7 @@
  *
  */
 /*
-   Copyright (C) 2000, 2001, 2002 Kern Sibbald and John Walker
+   Copyright (C) 2000-2003 Kern Sibbald and John Walker
 
    This program is free software; you can redistribute it and/or
    modify it under the terms of the GNU General Public License as
@@ -30,7 +30,7 @@
 
  */
 
-#ifndef __RWLOCK_H 
+#ifndef __RWLOCK_H
 #define __RWLOCK_H 1
 
 typedef struct s_rwlock_tag {
@@ -45,13 +45,19 @@ typedef struct s_rwlock_tag {
    int               w_wait;          /* writers waiting */
 } brwlock_t;
 
+typedef struct s_rwsteal_tag {
+   pthread_t         writer_id;       /* writer's thread id */
+   int               state;
+} brwsteal_t;
+
+
 #define RWLOCK_VALID  0xfacade
 
 #define RWL_INIIALIZER \
    {PTHREAD_MUTEX_INITIALIZER, PTHREAD_COND_INITIALIZER, \
     PTHREAD_COND_INITIALIZER, RWLOCK_VALID, 0, 0, 0, 0}
 
-/* 
+/*
  * read/write lock prototypes
  */
 extern int rwl_init(brwlock_t *wrlock);