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* Clean up ill-advised or unusual header guardsMarkus Armbruster2016-07-121-3/+3
| | | | | | | Cleaned up with scripts/clean-header-guards.pl. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Richard Henderson <rth@twiddle.net>
* io: fix description of @errp parameter initializationDaniel P. Berrange2016-01-201-2/+2
| | | | | | | The "Error **errp" parameters must be NULL initialized not uninitialized. Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
* io: add QIOChannelCommand classDaniel P. Berrange2015-12-181-0/+91
Add a QIOChannel subclass that is capable of performing I/O to/from a separate process, via a pair of pipes. The command can be used for unidirectional or bi-directional I/O. Signed-off-by: Daniel P. Berrange <berrange@redhat.com>