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authorJohn Snow <jsnow@redhat.com>2018-03-10 03:27:40 -0500
committerKevin Wolf <kwolf@redhat.com>2018-03-19 12:01:24 +0100
commit2da4617a5457a6542b0ff702caa983e78d6fe5d6 (patch)
tree08b6983b1b702735b6b9eb320620627ff4d4237c /hmp.c
parentefe4d4b7b2f59bb8cdaa8651b832b8153ec24ce9 (diff)
blockjobs: add prepare callback
Some jobs upon finalization may need to perform some work that can still fail. If these jobs are part of a transaction, it's important that these callbacks fail the entire transaction. We allow for a new callback in addition to commit/abort/clean that allows us the opportunity to have fairly late-breaking failures in the transactional process. The expected flow is: - All jobs in a transaction converge to the PENDING state, added in a forthcoming commit. - Upon being finalized, either automatically or explicitly by the user, jobs prepare to complete. - If any job fails preparation, all jobs call .abort. - Otherwise, they succeed and call .commit. Signed-off-by: John Snow <jsnow@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'hmp.c')
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