Gio.DataInputStream.prototype.read_upto_async

function read_upto_async(stop_chars: String, stop_chars_len: Number(gssize), io_priority: Number(gint), cancellable: Gio.Cancellable, callback: Gio.AsyncReadyCallback): void {
    // Gjs wrapper for g_data_input_stream_read_upto_async()
}
  

The asynchronous version of Gio.DataInputStream.prototype.read_upto. It is an error to have two outstanding calls to this function.

In contrast to Gio.DataInputStream.prototype.read_until, this function does not consume the stop character. You have to use Gio.DataInputStream.prototype.read_byte to get it before calling Gio.DataInputStream.prototype.read_upto again.

Note that stop_chars may contain '\0' if stop_chars_len is specified.

When the operation is finished, callback will be called. You can then call Gio.DataInputStream.prototype.read_upto_finish to get the result of the operation.

Since 2.26