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External UNIX socket (edit)

Revision as of 07:51, 30 July 2015

484 bytes added , 07:51, 30 July 2015

→‎What to do with socketpair()-s?

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== What to do with socketpair()-s? ==

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Unnamed unix sockets created with socketpair() systemcall can be dumped and restored.

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For dump socketpair put inode of this socket in <code>--ext-unix-sk</code> option, for example:

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To restore socketpair ~~we need more help from the server --~~ the server should create new pair and call criu restore asking it to [[Inheriting FDs on restore|inherit]] one.

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<code>

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criu dump -D images -o dump.log -v4 --ext-unix-sk=11890815 -t 16528

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</code>

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For restore socketpair the server should create new pair and call criu restore asking it to [[Inheriting FDs on restore|inherit]] one. Example of command:

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<code>

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criu restore -d -D images -o restore.log --pidfile restore.pid -v4 -x --inherit-fd fd[3]:socket:[11890815]

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</code>

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test source code also available for this feature and can be found in criu source tree under test/socketpairs.

== See also ==

Artem

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