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util: add is_equal to UUID API

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It's going to be useful, in particular, in VMBus code massively using
uuids aka GUIDs.

Signed-off-by: Roman Kagan <rkagan@virtuozzo.com>
Message-Id: <20171127124355.26015-1-rkagan@virtuozzo.com>
Signed-off-by: Fam Zheng <famz@redhat.com>
This commit is contained in:
Roman Kagan 2017-11-27 15:43:55 +03:00 • committed by Fam Zheng
parent dbd73b569b
commit bfab1aede0
3 changed files with 15 additions and 2 deletions
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7
util/uuid.c
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@ -41,7 +41,12 @@ void qemu_uuid_generate(QemuUUID *uuid)
int qemu_uuid_is_null(const QemuUUID *uu)
{
static QemuUUID null_uuid;
return memcmp(uu, &null_uuid, sizeof(QemuUUID)) == 0;
return qemu_uuid_is_equal(uu, &null_uuid);
}
int qemu_uuid_is_equal(const QemuUUID *lhv, const QemuUUID *rhv)
{
return memcmp(lhv, rhv, sizeof(QemuUUID)) == 0;
}
void qemu_uuid_unparse(const QemuUUID *uuid, char *out)