append_to_async
Description:
public virtual async FileOutputStream append_to_async (FileCreateFlags flags, int io_priority = DEFAULT, Cancellable? cancellable = null) throws Error
Asynchronously opens this for appending.
For more details, see append_to which is the synchronous version of this call.
When the operation is finished, callback will be called. You can then call append_to_async.end
to get the result of the operation.
Example: Append to file, async:
public static int main (string[] args) {
MainLoop loop = new MainLoop ();
// Open or create a file for appending:
File file = File.new_for_path ("my-test.txt");
file.append_to_async.begin (FileCreateFlags.NONE, Priority.DEFAULT, null, (obj, res) => {;
try {
// Append a new line on each run:
FileOutputStream os = file.append_to_async.end (res);
os.write ("My new line\n".data);
} catch (Error e) {
print ("Error: %s\n", e.message);
}
loop.quit ();
});
loop.run ();
return 0;
}valac --pkg gio-2.0 GLib.File.append_to_async.valaParameters:
| this |
input File |
| 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 |