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authorMatthew Heon <mheon@redhat.com>2021-06-10 14:12:30 -0400
committerMatthew Heon <mheon@redhat.com>2021-06-10 14:17:41 -0400
commit62f4b0a1955853592c01310a2cf7e0ae041b9566 (patch)
treee3f2eb7cf3155760e4b0d9f878ec4f058dbcc1a2 /pkg
parent341e6a1628a35198500fcfc1bb65b377ff9b270b (diff)
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Add ExecDied event and use it to retrieve exit codes
When making Exec Cleanup processes mandatory, I introduced a race wherein attached exec sessions could be cleaned up and removed by the cleanup process before the frontend had a chance to get their exit code. Fortunately, we've dealt with this issue before in containers, and the same solution can be applied here. I added an event for an exec session's process exiting, `exec_died` (Docker has an identical event, so this actually improves our compatibility there) that includes the exit code of the exec session. If the race happens and the exec session no longer exists when we go to remove it, pick up exit code from the event and exit cleanly. Signed-off-by: Matthew Heon <mheon@redhat.com>
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