GBytes is Immutable

[Michael Fletcher <m fletcher theplanet ca>]

I am trying to writing a network server using gio, gobject-introspection 
and gjs.  I am using the Gio async calls such as g_input_stream_read_async.

I have managed to map the "void *buffer" to an array.  However I do not 
believe this is safe because g_input_stream_read_async does not ref the 
buffer.  If the caller does not keep a reference to the array / buffer 
it could be free'd before the async call returns which might write over 
something.


It seemed like I might be able to add a variation of 
g_input_stream_read_async that took a GBytes instead of a void*.

Howerver GBytes is supposed to be immutable.  That kindof confuses me 
because I see no reason why it must be that way.

My question (and sorry it took so long to get to it) ...


Why is GBytes documented as being immutable?