confdb_object_iter(3) [debian man page]

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

NAME

       confdb_object_iter - Iterate through objects in the Configuration Database

SYNOPSIS

       #include <corosync/confdb.h>

       confdb_error_t confdb_object_iter_start(confdb_handle_t handle, unsigned int parent_object_handle );

       confdb_error_t	confdb_object_iter(confdb_handle_t   handle,   unsigned   int  parent_object_handle,  unsigned	int  *object_handle,  void
       *object_name, int *object_name_len );

       confdb_error_t confdb_object_iter_destroy(confdb_handle_t handle, unsigned int parent_object_handle );

DESCRIPTION

       The  confdb_object_iter	function  repeatedly  returns  all  objects  that  are	subobjects  of	the  specified	parent.  You   must   call
       confdb_object_iter_start  first. This establishes a context for the parent object so that it knows where you are in the list. Then the next
       call to confdb_object_iter will return the handle of the first object in the list. Subsequent calls will return any remaining objects.  The
       function  returns  CONFDB_ERR_ACCESS  when  the all of the matching objects have been seen. The function returns the name and length of the
       object as well as its handle.   When you have finished searching for objects, call the confdb_object_iter_destroy library call to  free	up
       memory associated with the search context.

RETURN VALUE

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

ERRORS

       The errors are undocumented.

SEE ALSO

       confdb_overview(8),   confdb_initialize(3),   confdb_finalize(3),  confdb_dispatch(3),  confdb_object_create(3),  confdb_object_destroy(3),
       confdb_object_parent_get(3),	  confdb_key_create(3),       confdb_key_delete(3),	  confdb_key_get(3),	    confdb_key_replace(3),
       confdb_object_find_start(3),    confdb_object_find(3),	 confdb_object_iter_start(3),	confdb_object_iter(3),	 confdb_key_iter_start(3),
       confdb_key_iter(3),

corosync Man Page						    2008-04-17						     CONFDB_OBJECT_ITER(3)

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

NAME

       evs_initialize - Create a new connection to the EVS service

SYNOPSIS

       #include <corosync/evs.h>

       int evs_initialize(evs_handle_t *handle, evs_callbacks_t *callbacks);

DESCRIPTION

       The evs_initialize function is used to initialize a connection to the extended virtual synchrony API.

       Each  application may have several connections to the EVS API.  Each  application uses the handle argument to uniquely identify the connec-
       tion.  The handle argument is then used in other function calls to identify the connection to be used for communication with the  EVS  ser-
       vice.

       Every  time  an EVS event occurs, one of the callbacks specified by the argument callbacks is called.  The callback functions are described
       by the following type definitions:

	      typedef void (*evs_deliver_fn_t) (
		  unsigned int nodeid,
		      const void *msg,
		      size_t msg_len);

	      typedef void (*evs_confchg_fn_t) (
		  unsigned int *member_list, size_t member_list_entries,
		  unsigned int *left_list, size_t left_list_entries,
		  unsigned int *joined_list, size_t joined_list_entries);

       The callbacks argument is of the type:

	      typedef struct {
		      evs_deliver_fn_t evs_deliver_fn;
		      evs_confchg_fn_t evs_confchg_fn;
	      } evs_callbacks_t;

       When a configuration change occurs or a message is to be delivered one of the callbacks is called from the evs_dispatch() function.   If  a
       configuration change occurs, evs_confchg_fn is called.  If a delivery of a message occurs, evs_deliver_fn is called.

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_finalize(3),  evs_fd_get(3),  evs_dispatch(3),  evs_join(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_INITIALIZE(3)