A ::send() marked unblocking, where the zmq[_send,_sendmsg,_ms_send]
of the first (or only) part returned EINTR was expected to
return FALSE (== would-block) to the caller, but instead would
have sent the entire message. The comments indicate that this
could lead to the send blocking.
This would not be visible in our code, apart from a failure to update
statistics about blocked sends. These statistics are used to infer
which parts of the processing pipeline is slow, and are not critical.
The bug was found by code inspection and no testcase has been written.
A ::send() marked unblocking, where the zmq[_send,_sendmsg,_ms_send] of the first (or only) part returned EINTR was expected to return FALSE (== would-block) to the caller, but instead would have sent the entire message. The comments indicate that this could lead to the send blocking.
This would not be visible in our code, apart from a failure to update statistics about blocked sends. These statistics are used to infer which parts of the processing pipeline is slow, and are not critical.
The bug was found by code inspection and no testcase has been written.