[Libguestfs] [nbdkit PATCH 0/2] RFC: tweak error handling, add log filter

[Eric Blake]

Here's what I'm currently playing with; I'm not ready to commit
anything until I rebase my FUA work on top of this, as I only
want to break filter ABI once between releases.

Eric Blake (2):
  backend: Rework internal/filter error return semantics
  filters: Add log filter

 TODO                              |   2 -
 docs/nbdkit-filter.pod            |  84 +++++++--
 docs/nbdkit.pod                   |   1 +
 filters/log/nbdkit-log-filter.pod | 117 +++++++++++++
 configure.ac                      |   1 +
 src/internal.h                    |   1 -
 src/connections.c                 |  45 ++---
 src/filters.c                     |  81 +++++----
 src/plugins.c                     |  66 +++----
 filters/cache/cache.c             |  49 ++++--
 filters/cow/cow.c                 |  28 +--
 filters/log/log.c                 | 357 ++++++++++++++++++++++++++++++++++++++
 filters/partition/partition.c     |   2 +-
 filters/Makefile.am               |   1 +
 filters/log/Makefile.am           |  62 +++++++
 15 files changed, 761 insertions(+), 136 deletions(-)
 create mode 100644 filters/log/nbdkit-log-filter.pod
 create mode 100644 filters/log/log.c
 create mode 100644 filters/log/Makefile.am

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2.14.3