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Elektra 0.11.0
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Elektra-Notification structures and declarations for application developers. More...
#include "kdb.h"#include "kdbtypes.h"Typedefs | |
| typedef void(* | ElektraNotificationConversionErrorCallback) (Key *key, void *context) |
| Callback function called when string to number conversion failed. | |
| typedef void(* | ElektraNotificationChangeCallback) (Key *key, void *context) |
| Callback function for key changes. | |
Functions | |
| int | elektraNotificationContract (KeySet *contract) |
| Creates a contract for use with kdbOpen() that sets up notifications. | |
| int | elektraNotificationRegisterCallback (KDB *kdb, Key *key, ElektraNotificationChangeCallback callback, void *context) |
| Subscribe for updates via callback when a given key value is changed. | |
| int | elektraNotificationRegisterCallbackSameOrBelow (KDB *kdb, Key *key, ElektraNotificationChangeCallback callback, void *context) |
| Subscribe for updates via callback when a given key or a key below changed. | |
Elektra-Notification structures and declarations for application developers.
| int elektraNotificationContract | ( | KeySet * | contract | ) |
Creates a contract for use with kdbOpen() that sets up notifications.
When you call kdbOpen() with this contract, the internalnotification plugin will be mounted automatically. This allows you to call other elektraNotification* functions.
If you need to configure notification transport plugins, you should manually add the relevant keys to contract.
| contract | The keyset into which the contract is written. |
| -1 | if contract is NULL |
| 0 | on success |