Provided by: libcpg-dev_3.1.6-2ubuntu1_amd64 bug


       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 processes 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 system.

       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 message 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 entries in the iovec argument.


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


       The errors are undocumented.


       cpg_overview(3),  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 interrupted by a signal

       CS_ERR_NOT_SUPPORTED The requested protocol/functionality not supported

       CS_ERR_MESSAGE_ERROR Incorrect auth message received

       CS_ERR_NO_MEMORY Not enough memory to complete the requested task