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)
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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)