sd_bus_get_current_handler(3) — Linux manual page

NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | NOTES | SEE ALSO | COLOPHON

SD_BUS_GET_CURRENT_HANDLER(3)us_get_current_handlerUS_GET_CURRENT_HANDLER(3)

NAME         top

       sd_bus_get_current_handler, sd_bus_get_current_message,
       sd_bus_get_current_slot, sd_bus_get_current_userdata - Query
       information of the callback a bus object is currently running

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_message_handler_t sd_bus_get_current_handler(sd_bus *bus);

       sd_bus_message* sd_bus_get_current_message(sd_bus *bus);

       sd_bus_slot* sd_bus_get_current_slot(sd_bus *bus);

       void* sd_bus_get_current_userdata(sd_bus *bus);

DESCRIPTION         top

       Whenever sd-bus is about to invoke a user-supplied callback function,
       it stores the current callback, D-Bus message, slot and userdata
       pointer and allows these to be queried via
       sd_bus_get_current_handler(), sd_bus_get_current_message(),
       sd_bus_get_current_slot() and sd_bus_get_current_userdata(),
       respectively. If bus cannot be resolved or if execution does not
       reside in a user-supplied callback of bus, these functions return
       NULL.

RETURN VALUE         top

       On success, these functions 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

       This page is part of the systemd (systemd system and service manager)
       project.  Information about the project can be found at 
       ⟨http://www.freedesktop.org/wiki/Software/systemd⟩.  If you have a bug
       report for this manual page, see
       ⟨http://www.freedesktop.org/wiki/Software/systemd/#bugreports⟩.  This
       page was obtained from the project's upstream Git repository
       ⟨https://github.com/systemd/systemd.git⟩ on 2020-06-09.  (At that
       time, the date of the most recent commit that was found in the repos‐
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systemd 245                                    SD_BUS_GET_CURRENT_HANDLER(3)

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