DataInputStream.readUptoFinish

string readUptoFinish(gio.async_result.AsyncResult result, out size_t length)

Note that this function does not consume the stop character. You have to use gio.data_input_stream.DataInputStream.readByteData to get it before calling gio.data_input_stream.DataInputStream.readUptoAsync again.

The returned string will always be nul-terminated on success.

`result`	the #GAsyncResult that was provided to the callback
`length`	a #gsize to get the length of the data read in

a string with the data that was read

before encountering any of the stop characters. Set length to a #gsize to get the length of the string. This function will return null on an error.