Adding upstream version 247.3.upstream/247.3upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 23 insertions, 0 deletions

diff --git a/src/journal/lookup3.h b/src/journal/lookup3.h
new file mode 100644
index 0000000..04e493e
--- /dev/null
+++ b/src/journal/lookup3.h
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: LicenseRef-lookup3-public-domain */
+#pragma once
+
+#include <inttypes.h>
+#include <sys/types.h>
+
+#include "macro.h"
+
+uint32_t jenkins_hashword(const uint32_t *k, size_t length, uint32_t initval) _pure_;
+void jenkins_hashword2(const uint32_t *k, size_t length, uint32_t *pc, uint32_t *pb);
+
+uint32_t jenkins_hashlittle(const void *key, size_t length, uint32_t initval) _pure_;
+void jenkins_hashlittle2(const void *key, size_t length, uint32_t *pc, uint32_t *pb);
+
+uint32_t jenkins_hashbig(const void *key, size_t length, uint32_t initval) _pure_;
+
+static inline uint64_t jenkins_hash64(const void *data, size_t length) {
+        uint32_t a = 0, b = 0;
+
+        jenkins_hashlittle2(data, length, &a, &b);
+
+        return ((uint64_t) a << 32ULL) | (uint64_t) b;
+}