Fuse Example File System - The file changed on disk do you want to reload the file -

running built-in fuse hellofs example file system, shows hello.txt file on root. opening file show error "...the file changed on disk want reload file. reload/cancel"

how can remove error.

i facing same error in custom file system because had taken hellofs starting point. make question simple quoted hellofs code because same error in hellofs also.

example code, log , screenshot of error below:

hellofs java code:

package net.fusejna.examples;  import java.io.file; import java.nio.bytebuffer;  import net.fusejna.directoryfiller; import net.fusejna.errorcodes; import net.fusejna.fuseexception; import net.fusejna.structfusefileinfo.fileinfowrapper; import net.fusejna.structstat.statwrapper; import net.fusejna.types.typemode.nodetype; import net.fusejna.util.fusefilesystemadapterfull;  public class hellofs extends fusefilesystemadapterfull {     public static void main(final string... args) throws fuseexception     {         if (args.length != 1) {             system.err.println("usage: hellofs <mountpoint>");             system.exit(1);         }         new hellofs().log(true).mount(args[0]);     }      private final string filename = "/hello.txt";     private final string contents = "hello world!\n";      @override     public int getattr(final string path, final statwrapper stat)     {         if (path.equals(file.separator)) { // root directory             stat.setmode(nodetype.directory);             return 0;         }         if (path.equals(filename)) { // hello.txt             stat.setmode(nodetype.file).size(contents.length());             return 0;         }         return -errorcodes.enoent();     }      @override     public int read(final string path, final bytebuffer buffer, final long size, final long offset, final fileinfowrapper info)     {         // compute substring being asked read         final string s = contents.substring((int) offset,                 (int) math.max(offset, math.min(contents.length() - offset, offset + size)));         buffer.put(s.getbytes());         return s.getbytes().length;     }      @override     public int readdir(final string path, final directoryfiller filler)     {         filler.add(filename);         return 0;     } } 

error: ...the file changed on disk want reload file. reload/cancel

log:

mar 24, 2014 12:16:15 hellofs statfs info: [/] method succeeded. result: 0 mar 24, 2014 12:16:33 hellofs getattr info: [/hello.txt] method succeeded. result: 0 mar 24, 2014 12:16:36 hellofs getattr info: [/hello.txt] method succeeded. result: 0 mar 24, 2014 12:16:45 hellofs getattr info: [/hello.txt] method succeeded. result: 0 mar 24, 2014 12:16:45 hellofs getattr info: [/] method succeeded. result: 0 mar 24, 2014 12:16:45 hellofs open info: [/hello.txt] method succeeded. result: 0 mar 24, 2014 12:16:45 hellofs read info: [/hello.txt] method succeeded. result: 13 mar 24, 2014 12:16:45 hellofs getattr info: [/hello.txt] method succeeded. result: 0 mar 24, 2014 12:16:45 hellofs flush info: [/hello.txt] method succeeded. result: 0 mar 24, 2014 12:16:45 hellofs lock info: [/hello.txt] method succeeded. result: -38 mar 24, 2014 12:16:45 hellofs release info: [/hello.txt] method succeeded. result: 0 mar 24, 2014 12:16:46 hellofs getattr info: [/hello.txt] method succeeded. result: 0 mar 24, 2014 12:16:46 hellofs getattr info: [/] method succeeded. result: 0 mar 24, 2014 12:16:48 hellofs getattr info: [/hello.txt] method succeeded. result: 0 

please guide me how fix this

i not familiar java version of fuse (i c++/python), based on trace, i'd editor application 1 releasing file handle. maybe it's doing open/read/close, , holding in cache. try opening file in simpler, vi, or using cat on it.

the thing "the contents have changed on disk" editor responding continuously changing timestamp in stat structure. try setting statwrapper.mtime (in getattr function) fixed time, unix epoch, , see if helps.

the example file systems jumping off point, in order easy understand, there's lot don't implement.