Related Work

• NetBIOS---callback mechanism. Up to 254 sessions without ability to specify which sessions

• Win32---WaitForMultipleObjects() passes information about all potential event sources on each call. Like select().

• Windows NT 3.5---I/O Completion Port mechanism. Provides similar API as authors propose (predates and initially unaware!). Authors note the scalability of its design is unknown.

• Realtime Signals Extension (POSIX)---asynchronous mechanism that does not batch events.

• Mach Port Sets---underlying different model of messages rather than byte streams as in Unix.