SD_BUS_MESSAGE_REWIND - Online Linux Manual PageSection : 3
Updated :
Source : systemd 250
Note : sd_bus_message_rewind

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NAMEsd_bus_message_rewind − Return to beginning of message or current container

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SYNOPSIS#include <systemd/sd−bus​.h>int sd_bus_message_rewind(sd_bus_message *m, int complete);

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DESCRIPTIONsd_bus_message_rewind() moves the "read pointer" in the message m to either the beginning of the message (if complete is true) or to the beginning of the currently open container​. If no container is open, complete has no effect​.

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RETURN VALUEOn success, this function returns 0 or a positive integer​. The value is zero if the current container or whole message in case no container is open is empty, and positive otherwise​. On failure, it returns a negative errno−style error code​.

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ErrorsReturned errors may indicate the following problems: −EINVAL The m parameter is NULL​. −EPERM The message m has not been sealed​.

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NOTESThese 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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SEE ALSOsystemd(1), sd-bus(3), sd_bus_message_read(3) 0

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