komi

mcmilk · Sep 21, 2024 · 00e1c9e · 00e1c9e
1 parent 3014dcb
commit 00e1c9e
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diff --git a/module/zcommon/cityhash.c b/module/zcommon/cityhash.c
@@ -22,8 +22,11 @@
  * Copyright (c) 2017 by Delphix. All rights reserved.
  */
 
+#include "komihash.h"
+
 #include <cityhash.h>
 
+#if 0
 #define	HASH_K1 0xb492b66fbe98f273ULL
 #define	HASH_K2 0x9ae16a3b2f90404fULL
 
@@ -87,6 +90,66 @@ cityhash4(uint64_t w1, uint64_t w2, uint64_t w3, uint64_t w4)
 {
 	return (cityhash_impl(w1, w2, w3, w4));
 }
+#endif
+
+/*
+ * impl via komihash
+ */
+uint64_t
+cityhash1(uint64_t w)
+{
+	komihash_stream_t ctx;
+	void *p1 = w;
+
+	komihash_stream_init( &ctx, 0);
+	komihash_stream_update( &ctx, p1, 8);
+	return( komihash_stream_final( &ctx ));
+}
+
+uint64_t
+cityhash2(uint64_t w1, uint64_t w2)
+{
+	komihash_stream_t ctx;
+	void *p1 = w1;
+	void *p2 = w2;
+
+	komihash_stream_init( &ctx, 0);
+	komihash_stream_update( &ctx, p1, 8);
+	komihash_stream_update( &ctx, p2, 8);
+	return( komihash_stream_final( &ctx ));
+}
+
+uint64_t
+cityhash3(uint64_t w1, uint64_t w2, uint64_t w3)
+{
+	komihash_stream_t ctx;
+	void *p1 = w1;
+	void *p2 = w2;
+	void *p3 = w3;
+
+	komihash_stream_init( &ctx, 0);
+	komihash_stream_update( &ctx, p1, 8);
+	komihash_stream_update( &ctx, p2, 8);
+	komihash_stream_update( &ctx, p3, 8);
+	return( komihash_stream_final( &ctx ));
+}
+
+uint64_t
+cityhash4(uint64_t w1, uint64_t w2, uint64_t w3, uint64_t w4)
+{
+	komihash_stream_t ctx;
+	void *p1 = w1;
+	void *p2 = w2;
+	void *p3 = w3;
+	void *p4 = w4;
+
+	komihash_stream_init( &ctx, 0);
+	komihash_stream_update( &ctx, p1, 8);
+	komihash_stream_update( &ctx, p2, 8);
+	komihash_stream_update( &ctx, p3, 8);
+	komihash_stream_update( &ctx, p4, 8);
+	return( komihash_stream_final( &ctx ));
+}
 
 #if defined(_KERNEL)
 EXPORT_SYMBOL(cityhash1);