EVS_JOIN(3)					    Corosync Cluster Engine Programmer's Manual 				       EVS_JOIN(3)

NAME

       evs_join - Joins one or more groups in the EVS library

SYNOPSIS

       #include <corosync/evs.h>

       int evs_join(evs_handle_t handle, evs_group_t *groups, int group_entries);

DESCRIPTION

       The evs_join function is used to join one or more groups.  When a group is joined, using the evs_mcast_joined(3) function will multicast to
       the groups joined in the argument handle.  Messages that are sent to any of the groups joined to the parameter handle will be delivered	by
       evs_dispatch(3).

       This call may be used more then once on a handle, in which case the joined groups will be all of the groups passed to the evs_join(3) func-
       tion during the lifecycle of the parameter handle.

       The argument groups is used to specify the groups to join.  A group is a 32 byte key.  The key is not a string, hence, the  entire  key	is
       used when joining the channel.  For that reason the entire group should be initialized.

       The argument group_entries specifies how many entries are located in the groups argument.

       The groups argument is of the type evs_group_t which is defined by the structure:

	      typedef struct {
		      char key[32];
	      } evs_groups_t;

RETURN VALUE

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

ERRORS

       The errors are undocumented.

SEE ALSO

       evs_overview(8),     evs_initialize(3),	   evs_finalize(3),    evs_fd_get(3),	 evs_dispatch(3),    evs_leave(3),    evs_mcast_joined(3),
       evs_mcast_groups(3), evs_mmembership_get(3) evs_context_get(3) evs_context_set(3)

corosync Man Page						    2004-08-31							       EVS_JOIN(3)