Synchronizing Operations on a SAN

The Windows Sockets switch uses its session protocol to handle almost all synchronization between a SAN service provider and applications. That is, the switch, in conjunction with the TCP/IP provider, handles most WSPAsyncSelect, WSPEventSelect, and WSPSelect calls from applications. The switch does not forward these calls to a SAN service provider except when specifying the FD_ACCEPT and FD_CONNECT network event codes in calls to a SAN service provider's WSPEventSelect function, as described in Setting Up a SAN Connection.