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util/uuid: add a hash function

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Add hash function to uuid module using the
djb2 hash algorithm.

Add a couple simple unit tests for the hash
function, checking collisions for similar UUIDs.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Albert Esteve <aesteve@redhat.com>
Message-Id: <20231002065706.94707-2-aesteve@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Albert Esteve 2023-10-02 08:57:03 +02:00 • committed by Michael S. Tsirkin
parent 70f88436aa
commit a6ceee591a
3 changed files with 43 additions and 0 deletions
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include/qemu/uuid.h
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@ -96,4 +96,6 @@ int qemu_uuid_parse(const char *str, QemuUUID *uuid);
QemuUUID qemu_uuid_bswap(QemuUUID uuid);
uint32_t qemu_uuid_hash(const void *uuid);
#endif