FileLock.java (isValid): locks are valid if the channel is open.

2004-11-11  Casey Marshall  <csm@gnu.org>

	* gnu/java/nio/FileLock.java (isValid): locks are valid if the
	channel is open.
	* gnu/java/nio/channels/natFileChannelPosix.cc (lock): use
	'F_RDLCK' for shared locks, 'F_WRLCK' for exclusive locks.

From-SVN: r90538

libjava/ChangeLog

+2004-11-11  Casey Marshall  <csm@gnu.org>
+
+	* gnu/java/nio/FileLock.java (isValid): locks are valid if the
+	channel is open.
+	* gnu/java/nio/channels/natFileChannelPosix.cc (lock): use
+	'F_RDLCK' for shared locks, 'F_WRLCK' for exclusive locks.
+
 2004-11-11  Robert Schuster <thebohemian@gmx.net>
   
   	Fixed regression:

libjava/gnu/java/nio/FileLockImpl.java

@@ -72,7 +72,7 @@ public class FileLockImpl extends FileLock
   
   public boolean isValid ()
   {
-    return !channel().isOpen();
+    return channel().isOpen();
   }
 
   public synchronized void release () throws IOException

libjava/gnu/java/nio/channels/natFileChannelPosix.cc

@@ -457,7 +457,7 @@ FileChannelImpl::lock
 {
   struct flock lockdata;
 
-  lockdata.l_type = shared ? F_WRLCK : F_RDLCK;
+  lockdata.l_type = shared ? F_RDLCK : F_WRLCK;
   lockdata.l_whence = SEEK_SET;
   lockdata.l_start = pos;
   lockdata.l_len = len;