search for: my_user_data

...void *user_data); + +C<ptr> is a pointer to the object (ie. the buffer or +callback C<user_data>). C<cb (ptr)> is called when libnbd +no longer holds a reference to that object. + +To illustrate how this works with an example: + + struct write_completed_user_data *my_user_data; + void *buf; + + my_user_data = malloc (sizeof *my_user_data); + buf = malloc (512); + nbd_add_free_callback (nbd, my_user_data, my_free, NULL); + nbd_add_free_callback (nbd, buf, my_free, NULL); + nbd_aio_pwrite_callback (nbd, buf, 512, 0, + write_completed, my_user_data...

...d_free_callback cb, + void *ptr); + +C<ptr> is a pointer to the object (ie. the buffer or +callback C<user_data>). C<cb (ptr)> is called when libnbd +no longer holds a reference to that object. + +To illustrate how this works with an example: + + struct my_user_data *my_user_data; + void *buf; + + my_user_data = malloc (sizeof *my_user_data); + buf = malloc (512); + nbd_add_free_callback (nbd, free, my_user_data); + nbd_add_free_callback (nbd, free, buf); + nbd_aio_pwrite_callback (nbd, buf, 512, 0, + write_completed, my_user_data, 0)...

As proposed here: https://www.redhat.com/archives/libguestfs/2019-August/msg00130.html I didn't actually read Eric's replies to that yet because I've been concentrating on writing these patches all day. Anyway here they are and I'll look at what Eric said about the proposal next. Rich.