Returns the buffer with the currently available bytes. The returned buffer must not be modified and will become invalid when reading from the stream or filling the buffer.
a gsize to get the number of bytes available in the buffer. out
read-only buffer. [array length=count][element-type guint8][transfer none]
See Implementation
Returns the buffer with the currently available bytes. The returned buffer must not be modified and will become invalid when reading from the stream or filling the buffer.