информация запроса, прикрепленная к объекту слота шины (query information attached to a bus slot object)
Имя (Name)
sd_bus_slot_get_bus, sd_bus_slot_get_current_handler,
sd_bus_slot_get_current_message, sd_bus_slot_get_current_userdata
- Query information attached to a bus slot object
Синопсис (Synopsis)
#include <systemd/sd-bus.h>
typedef int (*sd_bus_message_handler_t)(sd_bus_message *m,
void *userdata,
sd_bus_error *ret_error);
sd_bus *sd_bus_slot_get_bus(sd_bus_slot *slot);
sd_bus_message_handler_t
sd_bus_slot_get_current_handler(sd_bus_slot *slot);
sd_bus_message
*sd_bus_slot_get_current_message(sd_bus_slot *slot);
void *sd_bus_slot_get_current_userdata(sd_bus_slot *slot);
Описание (Description)
sd_bus_slot_get_bus() returns the bus object that message slot is
attached to.
sd_bus_slot_get_current_handler(),
sd_bus_slot_get_current_message() and
sd_bus_slot_get_current_userdata() return the current handler,
message and userdata respectively of the bus slot is attached to
if we're currently executing the callback associated with slot.
Возвращаемое значение (Return value)
sd_bus_slot_get_bus() always returns the bus object.
On success, sd_bus_slot_get_current_handler(),
sd_bus_slot_get_current_message() and
sd_bus_slot_get_current_userdata() return the requested object.
On failure, they return NULL.
Примечание (Note)
These APIs are implemented as a shared library, which can be
compiled and linked to with the libsystemd pkg-config(1) file.
Смотри также (See also)
systemd(1), sd-bus(3),
