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Daniel P. Berrange f682c25308 Ensure client streams are closed when marking a client for close
Every active stream results in a reference being held on the
virNetServerClientPtr object. This meant that if a client quit
with any streams active, although all I/O was stopped the
virNetServerClientPtr object would leak. This causes libvirtd
to leak any file handles associated with open streams when a
client quit

To fix this, when we call virNetServerClientClose there is a
callback invoked which lets the daemon release the streams
and thus the extra references

* daemon/remote.c: Add a hook to close all streams
* daemon/stream.c, daemon/stream.h: Add API for releasing
  all streams
* src/rpc/virnetserverclient.c, src/rpc/virnetserverclient.h:
  Allow registration of a hook to trigger when closing client
2011-08-16 14:38:11 -07:00
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