cpg_mcast_joined man page on Oracle

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CPG_MCAST_JOINED(3Corosync Cluster Engine Programmer's ManuCPG_MCAST_JOINED(3)

       cpg_mcast_joined - Multicasts to all groups joined to a handle

       #include <sys/uio.h> #include <corosync/cpg.h>

       int  cpg_mcast_joined(cpg_handle_t  handle,  cpg_guarantee_t guarantee,
       struct iovec *iovec, int iov_len);

       The cpg_mcast_joined function will multicast a message to all the  pro‐
       cesses that have been joined with the cpg_join(3) function for the same
       group name.  Messages that are sent to any of the groups joined to  the
       parameter  handle  will be delivered to all subscribed processes in the

       The argument guarantee requests a delivery guarantee for the message to
       be sent.	 The cpg_guarantee_t type is defined by:

	      typedef enum {
		      CPG_TYPE_UNORDERED,     /* not implemented */
		      CPG_TYPE_FIFO,	      /* same as agreed */
		      CPG_TYPE_AGREED,	      /* implemented */
		      CPG_TYPE_SAFE	      /* not implemented */
	      } cpg_guarantee_t;

       The meanings of the cpg_guarantee_t typedef are:

	      Messages	are guaranteed to be delivered, but with no particular
	      order.  This mode is unimplemented in the CPG library.

	      Messages are guaranteed to be  delivered	in  first  sent	 first
	      delivery	order.	 In  fact, this guarantee is equivalent to the
	      CPG_TYPE_AGREED guarantee.

	      All processors must agree on the order of delivery.  If  a  mes‐
	      sage  is sent from two or more processes at about the same time,
	      the delivery will occur in the same order to all processes.

	      All processes must agree on the order of delivery.  Further  all
	      processes	 must  have  a copy of the message before any delivery
	      takes place.  This mode is unimplemented in the CPG library.

       The iovec argument describes the scatter/gather list which is  used  to
       transmit a message.  This is a iovec described by:

	      struct iovec
		      void *iov_base;	  /* Pointer to data.  */
		      unsigned int iov_len;	/* Length of data.  */

       The iov_len argument describes the number of entires in the iovec argu‐

       This call returns the CS_OK value if successful, otherwise an error  is

       The errors are undocumented.

       cpg_overview(8),	  cpg_initialize(3),  cpg_finalize(3),	cpg_fd_get(3),
       cpg_dispatch(3),	  cpg_join(3),	 cpg_leave(3),	  cpg_mcast_joined(3),
       cpg_membership_get(3)	      cpg_zcb_alloc(3)	       cpg_zcb_free(3)
       cpg_zcb_mcast_joined(3)	    cpg_context_get(3)	    cpg_context_set(3)

       CS_ERR_TRY_AGAIN Resource temporarily unavailable

       CS_ERR_INVALID_PARAM Invalid argument

       CS_ERR_ACCESS Permission denied

       CS_ERR_LIBRARY The connection failed

       CS_ERR_INTERRUPT System call inturrupted by a signal

       CS_ERR_NOT_SUPPORTED The requested protocol/functuality not supported

       CS_ERR_MESSAGE_ERROR Incorrect auth message received

       CS_ERR_NO_MEMORY Not enough memory to completed the requested task

corosync Man Page		  3004-08-31		   CPG_MCAST_JOINED(3)

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