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...p a persistent buffer, but we don't need the associated completion callback to be actually called. --- docs/libnbd.pod | 15 +++++++++++++++ lib/internal.h | 18 +++++++++--------- 2 files changed, 24 insertions(+), 9 deletions(-) diff --git a/docs/libnbd.pod b/docs/libnbd.pod index f6fd4cd..d230cb4 100644 --- a/docs/libnbd.pod +++ b/docs/libnbd.pod @@ -643,6 +643,21 @@ S<C<chunk.callback = my_fn>> function is called. The free function is only accessible in the C API as it is not needed in garbage collected programming languages. +=head2 Callbacks with C<.callback=NULL> a...

This is a combination of these two earlier series: https://www.redhat.com/archives/libguestfs/2019-August/msg00235.html https://www.redhat.com/archives/libguestfs/2019-August/msg00240.html plus changes to allow .callback = NULL / .free != NULL, and to reduce the complexity of freeing callbacks. Although it's rather long there's nothing complex here. We might consider squashing some