x SuSE Linux 13.1-RELEASE x
x SuSE Linux 13.1-RELEASEx
SD_BUS_SLOT_GET_BUS(3) sd_bus_slot_get_bus SD_BUS_SLOT_GET_BUS(3)
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
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);
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.
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.
NOTES
Functions described here are available as a shared library, which can
be compiled against and linked to with the libsystemd pkg-config(1)
file.
The code described here uses getenv(3), which is declared to be not
multi-thread-safe. This means that the code calling the functions
described here must not call setenv(3) from a parallel thread. It is
recommended to only do calls to setenv() from an early phase of the
program when no other threads have been started.
SEE ALSO
systemd(1), sd-bus(3),
systemd 254 SD_BUS_SLOT_GET_BUS(3)
Want to link to this manual page? Use this URL:
<http://star2.abcm.com/cgi-bin/bsdi-man?query=sd_bus_slot_get_current_handler&sektion=3&manpath=>