Hi!
I have written a filesystem based on MACFuse. This works fine, But
sometimes if I want to write a file to the mounted Volume I get no
correct data.
Filesize and attributes are correct, but the file contains only 0
bytes.
I tried to reproduce this problem but I can't. If i try to copy the
same file again it works.
My code:
###FileSystem.m###
- (int) writeFileAtPath: (NSString *) path
fileDelegate: (id) fileDelegate
buffer: (const char *) buffer
size: (size_t) size
offset: (off_t) offset
error: (NSError **) error
{
MyFile *file = [self getFile: path];
// write data to file
return [file write:buffer size:size offset:offset];
}
#### MyFile.m ####
- (int) write: (const char *) buffer
size: (size_t) size
offset: (off_t) offset
{
@synchronized(self)
{
@try
{
NSData *data = [NSData dataWithBytes:buffer
length:size];
// ------ at this point the data bytes are already 0
-------------------
[[self fileHandle] seekToFileOffset:offset];
[[self fileHandle] writeData: data];
return size;
}
@catch (NSException *exp)
{
NSLog(@"Exception at writing");
}
}
return -1;
}
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