sd_bus_slot_get_current_userdata(3) — Linux manual page


SD_BUS_SLOT_GET_BUS(3)       sd_bus_slot_get_bus      SD_BUS_SLOT_GET_BUS(3)

NAME         top

       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

SYNOPSIS         top

       #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_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);

DESCRIPTION         top

       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.

RETURN VALUE         top

       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.

NOTES         top

       These APIs are implemented as a shared library, which can be compiled
       and linked to with the libsystemd pkg-config(1) file.

SEE ALSO         top

       systemd(1), sd-bus(3),

COLOPHON         top

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systemd 246                                           SD_BUS_SLOT_GET_BUS(3)

Pages that refer to this page: sd-bus(3)sd_bus_slot_get_userdata(3)sd_bus_slot_set_userdata(3)30-systemd-environment-d-generator(7)systemd.index(7)