1SD_BUS_MESSAGE_REWIND(3) sd_bus_message_rewind SD_BUS_MESSAGE_REWIND(3)
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6 sd_bus_message_rewind - Return to beginning of message or current
7 container
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10 #include <systemd/sd-bus.h>
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12 int sd_bus_message_rewind(sd_bus_message *m, int complete);
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15 sd_bus_message_rewind() moves the "read pointer" in the message m to
16 either the beginning of the message (if complete is true) or to the
17 beginning of the currently open container. If no container is open,
18 complete has no effect.
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21 On success, this function returns 0 or a positive integer. The value is
22 zero if the current container or whole message in case no container is
23 open is empty, and positive otherwise. On failure, it returns a
24 negative errno-style error code.
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26 Errors
27 Returned errors may indicate the following problems:
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29 -EINVAL
30 The m parameter is NULL.
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32 -EPERM
33 The message m has not been sealed.
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36 These APIs are implemented as a shared library, which can be compiled
37 and linked to with the libsystemd pkg-config(1) file.
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40 systemd(1), sd-bus(3), sd_bus_message_read(3)
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44systemd 248 SD_BUS_MESSAGE_REWIND(3)