cedric pushed a commit to branch master.
http://git.enlightenment.org/core/efl.git/commit/?id=1fdc58a58061f044f5a701f8b96af2eb80027b52
commit 1fdc58a58061f044f5a701f8b96af2eb80027b52
Author: vivek <vivek.el...@samsung.com>
Date: Tue Apr 28 23:33:56 2015 +0200
eina: add crc hash function to eina hash module.
Summary:
Added eina_hash_crc function in eina hash module to generate hash code
using crc-32.
Signed-off-by: vivek <vivek.el...@samsung.com>
Reviewers: Sergeant_Whitespace, cedric
Subscribers: Sergeant_Whitespace, cedric
Differential Revision: https://phab.enlightenment.org/D2273
Signed-off-by: Cedric BAIL <ced...@osg.samsung.com>
---
src/lib/eina/eina_hash.h | 11 +++++++++++
src/lib/eina/eina_inline_hash.x | 12 ++++++++++++
2 files changed, 23 insertions(+)
diff --git a/src/lib/eina/eina_hash.h b/src/lib/eina/eina_hash.h
index 460af00..5f953bf 100644
--- a/src/lib/eina/eina_hash.h
+++ b/src/lib/eina/eina_hash.h
@@ -1157,6 +1157,17 @@ static inline int eina_hash_int64(const unsigned long
long int *pkey,
static inline int eina_hash_murmur3(const char *key,
int len) EINA_ARG_NONNULL(1);
+/**
+ * @brief
+ * Hash function using crc-32 algorithm and and 0xEDB88320 polynomial
+ *
+ * @param key The key to hash
+ * @param len The length of the key
+ * @return The hash value
+ */
+static inline int eina_hash_crc(const char *key,
+ int len) EINA_ARG_NONNULL(1);
+
#include "eina_inline_hash.x"
/**
diff --git a/src/lib/eina/eina_inline_hash.x b/src/lib/eina/eina_inline_hash.x
index 630e347..71b0208 100644
--- a/src/lib/eina/eina_inline_hash.x
+++ b/src/lib/eina/eina_inline_hash.x
@@ -19,6 +19,8 @@
#ifndef EINA_INLINE_HASH_X_
#define EINA_INLINE_HASH_X_
+#include "eina_crc.h"
+
EAPI extern unsigned int eina_seed;
/*
@@ -150,4 +152,14 @@ eina_hash_murmur3(const char *key, int len)
return _fmix32(h1);
}
+
+static inline int
+eina_hash_crc(const char *key, int len)
+{
+ unsigned int crc;
+ unsigned int seed = 0xFFFFFFFF;
+
+ crc = eina_crc(key, len, seed, EINA_TRUE);
+ return (int)crc;
+}
#endif
--
