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#ifndef ELDBUS_CONNECTION_H
#define ELDBUS_CONNECTION_H 1
/**
* @defgroup Eldbus_Conneciton Connection
* @ingroup Eldbus
*
* @{
*/
/**
* @typedef Eldbus_Connection_Type
* Enum of several Eldbus connection types.
*/
typedef enum
{
ELDBUS_CONNECTION_TYPE_UNKNOWN = 0, /**< sentinel, not a real type */
ELDBUS_CONNECTION_TYPE_SESSION,
ELDBUS_CONNECTION_TYPE_SYSTEM,
ELDBUS_CONNECTION_TYPE_STARTER,
ELDBUS_CONNECTION_TYPE_ADDRESS,
ELDBUS_CONNECTION_TYPE_LAST /**< sentinel, not a real type */
} Eldbus_Connection_Type;
#define ELDBUS_TIMEOUT_INFINITE ((int) 0x7fffffff) /**< Infinite timeout definition */
/**
* Establish a connection to bus and integrate it with the ecore main
* loop. If a connection of given type was already created before, its
* reference counter is incremented and the connection is returned.
*
* @param type type of connection e.g ELDBUS_CONNECTION_TYPE_SESSION,
* ELDBUS_CONNECTION_TYPE_SYSTEM or ELDBUS_CONNECTION_TYPE_STARTER
*
* @return connection with bus
*/
EAPI Eldbus_Connection *eldbus_connection_get(Eldbus_Connection_Type type);
/**
* Always create and establish a new connection to bus and integrate it with
* the ecore main loop. Differently from eldbus_connection_get(), this function
* guarantees to create a new connection to the D-Bus daemon and the connection
* is not shared by any means.
*
* @param type type of connection e.g ELDBUS_CONNECTION_TYPE_SESSION,
* ELDBUS_CONNECTION_TYPE_SYSTEM or ELDBUS_CONNECTION_TYPE_STARTER
*
* @return connection with bus
*/
EAPI Eldbus_Connection *eldbus_private_connection_get(Eldbus_Connection_Type type);
/**
* Establish a connection to bus and integrate it with the ecore main
* loop. If a connection of given type was already created before, its
* reference counter is incremented and the connection is returned.
*
* @param address the address which will be passed to dbus_connection_open()
*
* @return connection with bus
*/
EAPI Eldbus_Connection *eldbus_address_connection_get(const char *address) EINA_ARG_NONNULL(1);
/**
* Always create and establish a new connection to bus and integrate it with
* the ecore main loop. Differently from eldbus_connection_get(), this function
* guarantees to create a new connection to the D-Bus daemon and the connection
* is not shared by any means.
*
* @param address the address which will be passed to dbus_connection_open_private()
*
* @return connection with bus
*/
EAPI Eldbus_Connection *eldbus_private_address_connection_get(const char *address) EINA_ARG_NONNULL(1);
/**
* @brief Increment connection reference count.
*
* @param conn The given Eldbus_Connection object to reference.
* @return The Eldbus_Connection object given as parameter.
*/
EAPI Eldbus_Connection *eldbus_connection_ref(Eldbus_Connection *conn) EINA_ARG_NONNULL(1);
/**
* @brief Decrement connection reference count.
*
* If reference count reaches 0, the connection to bus will be dropped and all
* its children will be invalidated.
*
* @param conn The given Eldbus_Connection object to unreference.
*/
EAPI void eldbus_connection_unref(Eldbus_Connection *conn) EINA_ARG_NONNULL(1);
/**
* @brief Add a callback function to be called when connection is freed
*
* @param conn The connection object to add the callback to.
* @param cb The callback to be called when the connection is free.
* @param data The data passed to the callback.
*/
EAPI void eldbus_connection_free_cb_add(Eldbus_Connection *conn, Eldbus_Free_Cb cb, const void *data) EINA_ARG_NONNULL(1, 2);
/**
* @brief Remove callback registered in eldbus_connection_free_cb_add().
*
* @param conn The connection object to delete the callback from.
* @param cb The callback that was called when the connection was free.
* @param data The data that was passed to the callback.
*/
EAPI void eldbus_connection_free_cb_del(Eldbus_Connection *conn, Eldbus_Free_Cb cb, const void *data) EINA_ARG_NONNULL(1, 2);
/**
* @brief Set an attached data pointer to an object with a given string key.
*
* @param conn The connection object to store data to
* @param key to identify data
* @param data data that will be stored
*/
EAPI void eldbus_connection_data_set(Eldbus_Connection *conn, const char *key, const void *data) EINA_ARG_NONNULL(1, 2, 3);
/**
* @brief Get data stored in connection.
*
* @param conn connection where data is stored
* @param key key that identifies data
*
* @return pointer to data if found otherwise NULL
*/
EAPI void *eldbus_connection_data_get(const Eldbus_Connection *conn, const char *key) EINA_ARG_NONNULL(1, 2);
/**
* @brief Del data stored in connection.
*
* @param conn connection where data is stored
* @param key that identifies data
*
* @return pointer to data if found otherwise NULL
*/
EAPI void *eldbus_connection_data_del(Eldbus_Connection *conn, const char *key) EINA_ARG_NONNULL(1, 2);
/**
* @typedef Eldbus_Connection_Event_Type
* Enum of several Eldbus connection events.
*/
typedef enum
{
ELDBUS_CONNECTION_EVENT_DEL,
ELDBUS_CONNECTION_EVENT_DISCONNECTED,
ELDBUS_CONNECTION_EVENT_LAST /**< sentinel, not a real event type */
} Eldbus_Connection_Event_Type;
/**
* @typedef Eldbus_Connection_Event_Cb
*
* Callback called when we receive an event.
*/
typedef void (*Eldbus_Connection_Event_Cb)(void *data, Eldbus_Connection *conn, void *event_info);
/**
* @brief Add a callback function to be called when an event occurs of the
* type passed.
*
* @param conn The connection object to add the callback to.
* @param type The type of event that will trigger the callback.
* @param cb The callback to be called when the event is triggered.
* @param cb_data The data passed to the callback.
*/
EAPI void eldbus_connection_event_callback_add(Eldbus_Connection *conn, Eldbus_Connection_Event_Type type, Eldbus_Connection_Event_Cb cb, const void *cb_data) EINA_ARG_NONNULL(1, 3);
/**
* @brief Remove callback registered in eldbus_connection_event_callback_add().
*
* @param conn The connection object to delete the callback from.
* @param type The type of event that was triggered the callback.
* @param cb The callback that was called when the event was triggered.
* @param cb_data The data that was passed to the callback.
*/
EAPI void eldbus_connection_event_callback_del(Eldbus_Connection *conn, Eldbus_Connection_Event_Type type, Eldbus_Connection_Event_Cb cb, const void *cb_data) EINA_ARG_NONNULL(1, 3);
/**
* @brief Send a message.
*
* @param conn the connection where the message will be sent
* @param msg message that will be sent
* @param cb if msg is a method call a callback should be passed
* to be executed when a response arrives
* @param cb_data data passed to callback
* @param timeout timeout in milliseconds, -1 to use default internal value or
* ELDBUS_TIMEOUT_INFINITE for no timeout
* @return A Eldbus_Pending struct.
*/
EAPI Eldbus_Pending *eldbus_connection_send(Eldbus_Connection *conn, Eldbus_Message *msg, Eldbus_Message_Cb cb, const void *cb_data, double timeout) EINA_ARG_NONNULL(1, 2);
/**
* @brief Gets unique name assigned by the message bus.
*
* @param conn connection object to get unique name from.
*
* @return pointer to unique name string or NULL or error. Returned value
* remains valid until connection is free.
*/
EAPI const char *eldbus_connection_unique_name_get(Eldbus_Connection *conn) EINA_ARG_NONNULL(1);
/**
* @}
*/
#endif
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