I am reading a growing file and showing its contents in the browser .. here
is my implementation for reading the file
//start watching the file
fs.watchFile(filename, {persistent:true,
interval:1000}, function(curr, prev){
if(prev.size > curr.size)
callback(null);
//open stream
var stream = fs.createReadStream(filename,
{start:prev.size, end:curr.size, encoding:'utf8'});
stream.on('data', function(data){
//emit new data
socket.emit('log', fileId,
data.split('\r\n'));
});
stream.on('error', function(err){
if(err) throw err;
});
});
this seems to work fine overall but for some strange reason it cant parse
out some lines that are added to the file and the lines dont seem to be
consistent .. e.g. the same line will be read fine if it shows up again but
every once in a while it just reads the whole line as null characters and
emits data as something like
debug: websocket writing
5:::{"name":"log","args":["coi-prod_wom201207260log",["\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000"]]}
any ideas whats going on here
Thanks
Adeel
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