confdb_initialize(3) [suse man page]

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

NAME

       confdb_initialize - Create a new connection to the ConfDb service

SYNOPSIS

       #include <corosync/confdb.h>

       int confdb_initialize(confdb_handle_t *handle, confdb_callbacks_t *callbacks);

DESCRIPTION

       The confdb_initialize function is used to initialize a connection to the configuration database API.

       Each  application may have several connections to the CONFDB API.  Each  application uses the handle argument to uniquely identify the con-
       nection.  The handle argument is then used in other function calls to identify the connection to be used for communication with the  CONFDB
       service.

       Every time the configuration database is updated, the callback is called.  The callback function is described by the following type defini-
       tions:

              typedef void (*confdb_change_notify_fn_t) (
                  confdb_handle_t handle,
                  unsigned int parent_object_handle,
                  unsigned int object_handle,
                  void *object_name,
                  int  object_name_len,
                  void *key_name,
                  int key_name_len,
                  void *key_value,
                  int key_value_len);

       The callbacks argument is of the type:

              typedef struct {
              confdb_change_notify_fn_t confdb_change_notify_fn;
              } confdb_callbacks_t;

       When a configuration change occurs, the callback is called from the confdb_dispatch() function.

RETURN VALUE

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

BUGS

       Callbacks are not support at the moment.

ERRORS

       The errors are undocumented.

SEE ALSO

       confdb_overview(8), confdb_finalize(3), confdb_fd_get(3), confdb_dispatch(3),

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

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

NAME

       confdb_object_find - Find a named object in the Configuration Database

SYNOPSIS

       #include <corosync/confdb.h>

       confdb_error_t confdb_object_find_start(confdb_handle_t handle, unsigned int parent_object_handle );

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

       confdb_error_t confdb_object_find_destroy(confdb_handle_t handle, unsigned int parent_object_handle );

DESCRIPTION

       The confdb_object_find function repeatedly returns objects that match a given name. You	must  call  confdb_object_find_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_find will
       return the handle of the first object that matches the passed in name. Subsequent calls will return any remaining  objects  with  the  same
       name.  The  function  returns  CONFDB_ERR_ACCESS when the all of the matching objects have been seen.   You need to provide the same object
       name and length for each call to confdb_object_find, If you change either of then, the results are undefined.   The library holds a  seper-
       ate  context  for  each	parent	object,  so you can call confdb_object_iter() on several parent objects at the same time and they will not
       interfere. Nor will they interfere with confdb_object_iter or confdb_key_iter calls on the same parent object.	 When  you  have  finished
       searching for objects, call the confdb_object_find_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_FIND(3)