[PROTON-2641] use consistent socket io cals in epoll proactor

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: proton-c-0.37.0
• Fix Version/s: proton-c-0.38.0
• Component/s: proton-c
• Assignee: Clifford Jansen
• Reporter: Clifford Jansen
• Created: 31/Oct/22 18:50
• Updated: 11/Nov/22 14:37
• Resolved: 31/Oct/22 19:24

Description

Epoll proactor currently uses send/read for IO.  For consistency it should use write/read or send/recv.  The latter allows the kernel to skip code handling the generic to specific transition and is the more performant option (even if rarely measurable).