Asynchronously overwrites the file, replacing the contents, possibly creating a backup copy of the file first.
For more details, see replace which is the synchronous version of this call.
When the operation is finished, callback will be called. You can then call replace_async.end
to get the result of the operation.
Example: Replace file-content (stream-based), 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.replace_async.begin (null, false, FileCreateFlags.NONE, Priority.DEFAULT, null, (obj, res) => {
try {
OutputStream ostream = file.replace_async.end (res);
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.replace_async.vala| this |
input File |
| etag |
an entity tag for the current File, or null to ignore |
| make_backup |
true if a backup should be created |
| flags |
a set of FileCreateFlags |
| io_priority |
the I/O priority of the request |
| cancellable |
optional Cancellable object, null to ignore |
| callback |
a TaskReadyCallback to call when the request is satisfied |
| user_data |
the data to pass to callback function |