Example: Open an existing file for r/w, async

public static int main (string[] args) {
if (args.length != 2) {
print ("%s FILE\n", args[0]);
return 0;
}

MainLoop loop = new MainLoop ();

File file = File.new_for_commandline_arg (args[1]);
file.open_readwrite_async.begin (Priority.DEFAULT, null, (obj, res) => {
try {
FileIOStream iostream = file.open_readwrite_async.end (res);
iostream.seek (0, SeekType.END);

OutputStream ostream = iostream.output_stream;
DataOutputStream dostream = new DataOutputStream (ostream);
dostream.put_string ("new-line\n");
} catch (Error e) {
print ("Error: %s\n", e.message);
}

loop.quit ();
});

loop.run ();
return 0;
}

 valac --pkg gio-2.0 GLib.File.open_readwrite_async.vala

See:




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