What would be the best way to detect a file has been written to disk? Once
I have passed all the data to a fs.WriteStream, the data is at first
buffered by node and written to the disk asynchronously. There is no "end"
or "close" event to listen to (or at least these don't trigger on my system
(node v0.8.9)) when all bytes are actually written to the disk.
The best I have come up to is to listen to the "drain" event and then
compare writablestream.bytesWritten and the length of the data I sent to
the stream.
var len = 0;
myReadStream.on("data", function(chunk){
myWriteStream.write(chunk);
len += chunk.length;
});
myWriteStream.on("drain", function(){
if(myWriteStream.bytesWritten == len){
console.log("All bytes written to disk");
}
});
But this doesn't seem very future proof, what if the conditions for the
'drain' event with file write change one day? Is there a better way for
this?
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