lnk commit front code

mms/event2.c

@@ -0,0 +1,74 @@
+/************************************************************************/
+/* SISCO SOFTWARE MODULE HEADER *****************************************/
+/************************************************************************/
+/*	(c) Copyright Systems Integration Specialists Company, Inc.,	*/
+/*	2003 All Rights Reserved					*/
+/*									*/
+/* MODULE NAME : event2.c						*/
+/* PRODUCT(S)  : MMSEASE-LITE						*/
+/*									*/
+/* MODULE DESCRIPTION :							*/
+/*	Event handling function. This function may be used ONLY if	*/
+/*	the the POLLING version of the "gensock2" sockets interface is	*/
+/*	used (i.e. gensock2.c is compiled with GENSOCK_THREAD_SUPPORT	*/
+/*	NOT defined).							*/
+/*									*/
+/* GLOBAL FUNCTIONS DEFINED IN THIS MODULE :				*/
+/*	wait_any_event ()						*/
+/*									*/
+/* MODIFICATION LOG :							*/
+/*  Date     Who   Rev     Comments					*/
+/* --------  ---  ------   -------------------------------------------  */
+/* 01/30/07  JRB    04     Shorten sleep to avoid delay detecting connect.*/
+/* 12/11/06  JRB    03     Wait for Subnetwork events too.		*/
+/* 11/01/06  JRB    02     Call sMsSleep when no connections,		*/
+/*			   so we don't hog the CPU.			*/
+/* 07/10/03  JRB    01     Created					*/
+/************************************************************************/
+
+#include "glbtypes.h"
+#include "sysincs.h"
+#include "mmsdefs.h"
+#include "gensock2.h"
+#include "clnp_sne.h"	/* for "Subnetwork" event stuff	*/
+
+/************************************************************************/
+/*                          wait_any_event				*/
+/* Wait for "socket" events OR "Subnetwork" events.			*/
+/* NOTE: See comments about "PORTING" if this function needs		*/
+/*	to wait on "other" handles.					*/
+/************************************************************************/
+ST_VOID wait_any_event (ST_LONG max_ms_delay)
+  {
+GENSOCK_FD_SET sockFds;
+int nfds;
+struct timeval selectTimeout;
+
+  /* This function assumes only one group of sockets to process.	*/
+  sockInitAllFds (&sockFds);
+
+  /* If Subnetwork handle "hPktSock" is valid, add it to list.	*/
+  if (hPktSock >= 0)
+    sockAddReadFds (&sockFds, hPktSock);
+
+  /* PORTING: Call sockAddReadFds, sockAddWriteFds, sockAddExceptFds
+   *          to add "other" handles on which to wait.
+   */
+  if (sockFds.totalfds)
+    {
+    /* Convert milliseconds to seconds and microseconds	*/
+    selectTimeout.tv_sec  = max_ms_delay / 1000;		/* seconds	*/
+    selectTimeout.tv_usec = (max_ms_delay % 1000) * 1000;	/* microseconds	*/
+    nfds = select (sockFds.selectnfds, &sockFds.readfds, &sockFds.writefds, &sockFds.exceptfds, &selectTimeout);
+
+    /* PORTING: Add code to process "other" handles.	*/
+    }
+  else
+    sMsSleep (10);	/* no sockets to wait on, so sleep a little to avoid hogging CPU.*/
+
+  /* NOTE: socket events are NOT processed here. This function simply returns,
+   *       and the caller must call "mvl_comm_serve" to process the events.
+   */
+  return;
+  }
+