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Section XXIV ISaGRAF Function and Function Blocks 637 FBD Syntax DINT SockRelease( DINT Sock ); Parameters sock: DINT Socket handle to be released from remote connection. Return Values rslt: DINT -2 invalid SOCK. 0 = release complete. 1 = in progress (retry call later until complete). Remarks ST Example None (* Release the connection to remote client *) SockReleaseResult := SockRelease( Socket1Handle ); case SockReleaseResult of (* Success *) 0: return; (* Operation blocked (socket busy try again later) *) 1: (* nothing to do here, just attempt to write again *) (* possibly implement timeouts and retries here *) end_case; Free A Socket From Memory -- SockFree() Type C Function Function Release remote connections and free socket link handle. FBD Syntax DINT SockFree( DINT SOCK ); Parameters sock: DINT Socket handle to be released from remote connection. Return Values rslt: DINT -2 invalid SOCK. 0 = release complete. 1 = in progress (retry call later until complete). Remarks None
