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The iohelper dies on SIGPIPE if the stream is closed before all data is processed. IMO this should be an error condition for virStreamFinish according to docs like: * This method is a synchronization point for all asynchronous * errors, so if this returns a success code the application can * be sure that all data has been successfully processed. However for virStreamAbort, not so much: * Request that the in progress data transfer be cancelled * abnormally before the end of the stream has been reached. * For output streams this can be used to inform the driver * that the stream is being terminated early. For input * streams this can be used to inform the driver that it * should stop sending data. Without this, virStreamAbort will realistically always error for active streams like domain console. So, treat the SIGPIPE case as non-fatal if abort is requested. Note, this will only affect an explicit user requested abort. An abnormal abort, like from a server error, always raises an error in the daemon.
LibVirt : simple API for virtualization
Libvirt is a C toolkit to interact with the virtualization capabilities
of recent versions of Linux (and other OSes). It is free software
available under the GNU Lesser General Public License. Virtualization of
the Linux Operating System means the ability to run multiple instances of
Operating Systems concurrently on a single hardware system where the basic
resources are driven by a Linux instance. The library aim at providing
long term stable C API initially for the Xen paravirtualization but
should be able to integrate other virtualization mechanisms if needed.
Daniel Veillard <veillard@redhat.com>