[libvirt] [PATCH 0/5] Structured error logging and syslog support

This is sort of a v2 of the "Structured syslog" series. Patches 1-4 allow callers virLogMessage to add arbitrary additional data, and use it in virRaiseErrorFull and its callers. This data is sent to journal (and ignored for other outputs). Because the additional fields for errors include virErrorDomain and virErrorNumber, this allows _programs_ to _automatically_ detect the event and react to it, perhaps alerting the user. Patch 5 adds the "syslog/json" log output type, in a way that is comparably async-signal-safe to the other log outputs (i.e. it's not safe by the letter of the standard, but safe in practice). I still think that having this format output is desirable, but I'll accept it if you decide that it is not wanted in libvirt. Miloslav Trmač (5): Add a metadata parameter to virLog{,V}Message Add metadata to virLogOutputFunc Use helper functions to format the journal iov array Add detailed error information to journal Add "syslog/json" log output format. docs/logging.html.in | 3 + src/util/logging.c | 445 +++++++++++++++++++++++++++++++++++++++++++-------- src/util/logging.h | 27 +++- src/util/viraudit.c | 4 +- src/util/virterror.c | 33 +++- tests/testutils.c | 1 + 6 files changed, 437 insertions(+), 76 deletions(-) -- 1.7.11.7