1SD_BUS_GET_CURRENT_HANDLER(s3d)_bus_get_current_handlSeDr_BUS_GET_CURRENT_HANDLER(3)
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NAME

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

11       #include <systemd/sd-bus.h>
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13       typedef int (*sd_bus_message_handler_t)(sd_bus_message *m,
14                                               void *userdata,
15                                               sd_bus_error *ret_error);
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17       sd_bus_message_handler_t sd_bus_get_current_handler(sd_bus *bus);
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19       sd_bus_message* sd_bus_get_current_message(sd_bus *bus);
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21       sd_bus_slot* sd_bus_get_current_slot(sd_bus *bus);
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23       void* sd_bus_get_current_userdata(sd_bus *bus);
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DESCRIPTION

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

35       On success, these functions return the requested object. On failure,
36       they return NULL.
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NOTES

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

43       systemd(1), sd-bus(3)
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47systemd 250                                      SD_BUS_GET_CURRENT_HANDLER(3)