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migration: introduce set_blocking function in QEMUFileOps

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Remove the assumption that every QEMUFile implementation has
a file descriptor available by introducing a new function
in QEMUFileOps to change the blocking state of a QEMUFile.

If not set, it will fallback to the original code using
the get_fd method.

Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Message-Id: <1461751518-12128-7-git-send-email-berrange@redhat.com>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
This commit is contained in:
Daniel P. Berrange 2016-04-27 11:04:56 +01:00 • committed by Amit Shah
parent 0436e09f96
commit 06ad513532
3 changed files with 13 additions and 6 deletions
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4
migration/migration.c
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@ -422,11 +422,9 @@ static void process_incoming_migration_co(void *opaque)
void process_incoming_migration(QEMUFile *f)
{
Coroutine *co = qemu_coroutine_create(process_incoming_migration_co);
int fd = qemu_get_fd(f);
assert(fd != -1);
migrate_decompress_threads_create();
qemu_set_nonblock(fd);
qemu_file_set_blocking(f, false);
qemu_coroutine_enter(co, f);
}