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Return path: Open a return path on QEMUFile for sockets

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Postcopy needs a method to send messages from the destination back to
the source, this is the 'return path'.

Wire it up for 'socket' QEMUFile's.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
This commit is contained in:
Dr. David Alan Gilbert 2015-11-05 18:10:43 +00:00 • committed by Juan Quintela
parent c1fcf220c9
commit adc468e9b9
3 changed files with 79 additions and 9 deletions
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12
migration/qemu-file.c
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@ -44,6 +44,18 @@ int qemu_file_shutdown(QEMUFile *f)
return f->ops->shut_down(f->opaque, true, true);
}
/*
* Result: QEMUFile* for a 'return path' for comms in the opposite direction
* NULL if not available
*/
QEMUFile *qemu_file_get_return_path(QEMUFile *f)
{
if (!f->ops->get_return_path) {
return NULL;
}
return f->ops->get_return_path(f->opaque);
}
bool qemu_file_mode_is_not_valid(const char *mode)
{
if (mode == NULL ||