confdb_initialize(3) Create a new connection to the ConfDb service


#include <corosync/confdb.h>

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


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 connection. 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 definitions:

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.


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


Callbacks are not support at the moment.


The errors are undocumented.