Movatterモバイル変換

sd_bus_message_copy(3) — Linux manual page

SD_BUS_MESSAGE_COPY(3)     sd_bus_message_copySD_BUS_MESSAGE_COPY(3)

NAME        top

       sd_bus_message_copy - Copy the contents of one message to another

SYNOPSIS        top

#include <systemd/sd-bus.h>int sd_bus_message_copy(sd_bus_message *m, sd_bus_message *source,intall);

DESCRIPTION        top

sd_bus_message_copy()copies the contents from messagesource tom. Ifall is false, a single complete type is copied (basic or       container). Ifall is true, the contents are copied until the end       of the currently open container or the end ofsource.

RETURN VALUE        top

       On success, this call returns true if anything was copied, and       false if there was nothing to copy. On failure, it returns a       negative errno-style error code.Errors       Returned errors may indicate the following problems:-EINVALsource orm areNULL.-EPERM           Messagem has been sealed orsource hasnot been sealed.-ESTALE           Destination message is in invalid state.-ENXIO           Destination message cannot be appended to.-ENOMEM           Memory allocation failed.

NOTES        top

       Functions described here are available as a shared library, which       can be compiled against and linked to with thelibsystemd pkg-config(1) file.       The code described here usesgetenv(3), which is declared to be       not multi-thread-safe. This means that the code calling the       functions described here must not callsetenv(3) from a parallel       thread. It is recommended to only do calls tosetenv()from an       early phase of the program when no other threads have been       started.

SEE ALSO        top

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

COLOPHON        top

       This page is part of thesystemd (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 2025-08-11.  (At that       time, the date of the most recent commit that was found in the       repository was 2025-08-11.)  If you discover any rendering       problems in this HTML version of the page, or you believe there is       a better or more up-to-date source for the page, or you have       corrections or improvements to the information in this COLOPHON       (which isnot part of the original manual page), send a mail to       man-pages@man7.orgsystemd 258~rc2SD_BUS_MESSAGE_COPY(3)

Pages that refer to this page:sd-bus(3), systemd.directives(7), systemd.index(7)

HTML rendering created 2025-09-06 byMichael Kerrisk, author ofThe Linux Programming Interface. For details of in-depthLinux/UNIX system programming training courses that I teach, lookhere. Hosting byjambit GmbH.