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   sd_bus_reply_method_error    ( 3 )

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Имя (Name)

sd_bus_reply_method_error, sd_bus_reply_method_errorf,
       sd_bus_reply_method_errorfv, sd_bus_reply_method_errno,
       sd_bus_reply_method_errnof, sd_bus_reply_method_errnofv - Reply
       with an error to a D-Bus method call

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Синопсис (Synopsis)

#include <systemd/sd-bus.h>

       int sd_bus_reply_method_error(sd_bus_message *call,
                                     const sd_bus_error *e);

       int sd_bus_reply_method_errorf(sd_bus_message *call,
                                      const char *name,
                                      const char *format, ...);

       int sd_bus_reply_method_errorfv(sd_bus_message *call,
                                       const char *name,
                                       const char *format, va_list ap);

       int sd_bus_reply_method_errno(sd_bus_message *call, int error,
                                     const sd_bus_error *p);

       int sd_bus_reply_method_errnof(sd_bus_message *call, int error,
                                      const char *format, ...);

       int sd_bus_reply_method_errnofv(sd_bus_message *call, int error,
                                       const char *format, va_list ap);

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Описание (Description)

The sd_bus_reply_method_error() function sends an error reply to
       the call message. The error structure e specifies the error to
       send, and is used as described in
       sd_bus_message_new_method_error(3). If no reply is expected to
       call, this function succeeds without sending a reply.

       The sd_bus_reply_method_errorf() is to
       sd_bus_reply_method_error() what
       sd_bus_message_new_method_errorf() is to
       sd_bus_message_new_method_error().

       The sd_bus_reply_method_errno() is to sd_bus_reply_method_error()
       what sd_bus_message_new_method_errno() is to
       sd_bus_message_new_method_error().

       The sd_bus_reply_method_errnof() is to
       sd_bus_reply_method_error() what
       sd_bus_message_new_method_errnof() is to
       sd_bus_message_new_method_error().

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Возвращаемое значение (Return value)

This function returns a non-negative integer if the error reply
       was successfully sent or if call does not expect a reply. On
       failure, it returns a negative errno-style error code.

   Errors
       Returned errors may indicate the following problems:

       -EINVAL
           The input parameter call is NULL.

           Message call is not a method call message.

           Message call is not attached to a bus.

           The error parameter e to sd_bus_reply_method_error() is not
           set, see sd_bus_error_is_set(3).

       -EPERM
           Message call has been sealed.

       -ENOTCONN
           The bus to which message call is attached is not connected.

       -ENOMEM
           Memory allocation failed.

       In addition, any error returned by sd_bus_send(1) may be
       returned.

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Примечание (Note)

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

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Смотри также (See also)

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

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