Re: [Libguestfs] [PATCH nbdkit 1/6] filters: Add a function to read full extents from a plugin.

This convenience function makes it a bit simpler to read a full set of extents covering a range from a plugin, especially for plugins which don't reply with a full set of extents in a single call. --- docs/nbdkit-filter.pod | 22 +++++++++++++++++ include/nbdkit-filter.h | 5 ++++ server/extents.c | 54 +++++++++++++++++++++++++++++++++++++++++ server/nbdkit.syms | 1 + 4 files changed, 82 insertions(+)

+++ b/server/extents.c

+struct nbdkit_extents * +nbdkit_extents_full (struct nbdkit_next_ops *next_ops, nbdkit_backend *nxdata, + uint32_t count, uint64_t offset, uint32_t flags, + int *err)

+ /* If the plugin is behaving we must make forward progress. */ + assert (offset > old_offset); + } + + return ret; + + error1: + *err = errno; + error0: + if (ret) nbdkit_extents_free (ret);

+ return NULL; +}