X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=src%2Fceph%2Fsrc%2Fcommon%2Fceph_hash.cc;fp=src%2Fceph%2Fsrc%2Fcommon%2Fceph_hash.cc;h=0000000000000000000000000000000000000000;hb=7da45d65be36d36b880cc55c5036e96c24b53f00;hp=061926d27b7e770a1e9efcdc1af8182c6d46c8b2;hpb=691462d09d0987b47e112d6ee8740375df3c51b2;p=stor4nfv.git

diff --git a/src/ceph/src/common/ceph_hash.cc b/src/ceph/src/common/ceph_hash.cc
deleted file mode 100644
index 061926d..0000000
--- a/src/ceph/src/common/ceph_hash.cc
+++ /dev/null
@@ -1,128 +0,0 @@
-
-#include "include/types.h"
-
-/*
- * Robert Jenkin's hash function.
- * http://burtleburtle.net/bob/hash/evahash.html
- * This is in the public domain.
- */
-#define mix(a, b, c)						\
-	do {							\
-		a = a - b;  a = a - c;  a = a ^ (c >> 13);	\
-		b = b - c;  b = b - a;  b = b ^ (a << 8);	\
-		c = c - a;  c = c - b;  c = c ^ (b >> 13);	\
-		a = a - b;  a = a - c;  a = a ^ (c >> 12);	\
-		b = b - c;  b = b - a;  b = b ^ (a << 16);	\
-		c = c - a;  c = c - b;  c = c ^ (b >> 5);	\
-		a = a - b;  a = a - c;  a = a ^ (c >> 3);	\
-		b = b - c;  b = b - a;  b = b ^ (a << 10);	\
-		c = c - a;  c = c - b;  c = c ^ (b >> 15);	\
-	} while (0)
-
-unsigned ceph_str_hash_rjenkins(const char *str, unsigned length)
-{
-	const unsigned char *k = (const unsigned char *)str;
-	__u32 a, b, c;  /* the internal state */
-	__u32 len;      /* how many key bytes still need mixing */
-
-	/* Set up the internal state */
-	len = length;
-	a = 0x9e3779b9;      /* the golden ratio; an arbitrary value */
-	b = a;
-	c = 0;               /* variable initialization of internal state */
-
-	/* handle most of the key */
-	while (len >= 12) {
-		a = a + (k[0] + ((__u32)k[1] << 8) + ((__u32)k[2] << 16) +
-			 ((__u32)k[3] << 24));
-		b = b + (k[4] + ((__u32)k[5] << 8) + ((__u32)k[6] << 16) +
-			 ((__u32)k[7] << 24));
-		c = c + (k[8] + ((__u32)k[9] << 8) + ((__u32)k[10] << 16) +
-			 ((__u32)k[11] << 24));
-		mix(a, b, c);
-		k = k + 12;
-		len = len - 12;
-	}
-
-	/* handle the last 11 bytes */
-	c = c + length;
-	switch (len) {            /* all the case statements fall through */
-	case 11:
-		c = c + ((__u32)k[10] << 24);
-	case 10:
-		c = c + ((__u32)k[9] << 16);
-	case 9:
-		c = c + ((__u32)k[8] << 8);
-		/* the first byte of c is reserved for the length */
-	case 8:
-		b = b + ((__u32)k[7] << 24);
-	case 7:
-		b = b + ((__u32)k[6] << 16);
-	case 6:
-		b = b + ((__u32)k[5] << 8);
-	case 5:
-		b = b + k[4];
-	case 4:
-		a = a + ((__u32)k[3] << 24);
-	case 3:
-		a = a + ((__u32)k[2] << 16);
-	case 2:
-		a = a + ((__u32)k[1] << 8);
-	case 1:
-		a = a + k[0];
-		/* case 0: nothing left to add */
-	}
-	mix(a, b, c);
-
-	return c;
-}
-
-/*
- * linux dcache hash
- */
-unsigned ceph_str_hash_linux(const char *str, unsigned length)
-{
-	unsigned hash = 0;
-
-	while (length--) {
-		unsigned char c = *str++;
-		hash = (hash + (c << 4) + (c >> 4)) * 11;
-	}
-	return hash;
-}
-
-
-unsigned ceph_str_hash(int type, const char *s, unsigned len)
-{
-	switch (type) {
-	case CEPH_STR_HASH_LINUX:
-		return ceph_str_hash_linux(s, len);
-	case CEPH_STR_HASH_RJENKINS:
-		return ceph_str_hash_rjenkins(s, len);
-	default:
-		return -1;
-	}
-}
-
-const char *ceph_str_hash_name(int type)
-{
-	switch (type) {
-	case CEPH_STR_HASH_LINUX:
-		return "linux";
-	case CEPH_STR_HASH_RJENKINS:
-		return "rjenkins";
-	default:
-		return "unknown";
-	}
-}
-
-bool ceph_str_hash_valid(int type)
-{
-        switch (type) {
-        case CEPH_STR_HASH_LINUX:
-        case CEPH_STR_HASH_RJENKINS:
-                return true;
-        default:
-                return false;
-        }
-}