migration: Teach QEMUFile to be QIOChannel-aware
commitc6ad5be7ae5b8c6bbbd0c592bbf18d4a78540516
authorPeter Xu <peterx@redhat.com>
Thu, 22 Jul 2021 17:58:40 +0000 (22 13:58 -0400)
committerDr. David Alan Gilbert <dgilbert@redhat.com>
Mon, 26 Jul 2021 11:44:59 +0000 (26 12:44 +0100)
treefa2e0a09691cef4e3808c848321169dc0fa3ced5
parent18711405b506e7ca3822ed19830f1c562e0247f9
migration: Teach QEMUFile to be QIOChannel-aware

migration uses QIOChannel typed qemufiles.  In follow up patches, we'll need
the capability to identify this fact, so that we can get the backing QIOChannel
from a QEMUFile.

We can also define types for QEMUFile but so far since we only need to be able
to identify QIOChannel, introduce a boolean which is simpler.

Introduce another helper qemu_file_get_ioc() to return the ioc backend of a
qemufile if has_ioc is set.

No functional change.

Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20210722175841.938739-5-peterx@redhat.com>
Reviewed-by: Lukas Straub <lukasstraub2@web.de>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
migration/qemu-file-channel.c
migration/qemu-file.c
migration/qemu-file.h
migration/ram.c
migration/savevm.c