cpg_membership_get(3) [debian man page]

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

NAME

       cpg_membership_get - Returns a list of members of a CPG group

SYNOPSIS

       #include <corosync/cpg.h>

       int cpg_membership_get(cpg_handle_t handle, struct cpg_name *groupName, struct cpg_address *member_list, int *member_list_entries);

DESCRIPTION

       The  cpg_membership_get	function  is used to determine the current processes in the configuration. You probably will not need to call this
       function much as one of the first confchg callbacks you will get will be from the cpg_join() function containing your process.	The  argu-
       ment  handle is used to reference the cpg instantiation.  The argument groupName will return the name of the group The argument member_list
       will return the list of processors in the current membership.  The argument member_list_entries should be set with the size of  member_list
       and will return the size of the member_list after return from the function.

ERRORS

       The errors are undocumented.

SEE ALSO

       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) cpg_local_get(3)

corosync Man Page						    2006-02-06						     CPG_MEMBERSHIP_GET(3)

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

NAME

       cpg_join - Joins one or more groups in the CPG library

SYNOPSIS

       #include <corosync/cpg.h>

       int cpg_join(cpg_handle_t handle, struct cpg_name *group);

DESCRIPTION

       The  cpg_join function is used to join one group.  When a group is joined, the cpg_mcast_joined(3) is called internally to multicast to the
       groups joined in the argument handle.  The process will also get notifications of other processes joining and leaving the group.   Messages
       that are sent to any of the groups joined to the parameter handle will be delivered by cpg_dispatch(3).

       This function may be only be called once for each handle. When a group has been joined the process will start to receive callbacks relating
       to messages sent from members of the group or notifications of processes joining or leaving the group.

       Note that more than one process on each node can join a CPG group  and  each  will  receive  its  own  copy  of	any  messages  sent  using
       cpg_mcast_joined() and its own confchg callback.

       The argument group is used to specify the group to join.

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

	      struct cpg_name {
		      int length;
		      char value[128];
	      };

RETURN VALUE

       This call returns the CS_OK value if successful, CS_ERR_INVALID_PARAM if the handle is already joined to a group.

ERRORS

       Not all errors are documented.

SEE ALSO

       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) cpg_local_get(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						    2004-08-31							       CPG_JOIN(3)