[lvm-devel] master - cleanup: better expressing passing key arg to _hash
Zdenek Kabelac
zkabelac at sourceware.org
Tue Sep 1 17:02:13 UTC 2020
Gitweb: https://sourceware.org/git/?p=lvm2.git;a=commitdiff;h=1ff1e86debe29abc0ac706e5e7b89fc5192f191f
Commit: 1ff1e86debe29abc0ac706e5e7b89fc5192f191f
Parent: 4baedfc5787e5b87cfb3f4b0ea13a6ae9bc9c52e
Author: Zdenek Kabelac <zkabelac at redhat.com>
AuthorDate: Sat Aug 29 22:37:17 2020 +0200
Committer: Zdenek Kabelac <zkabelac at redhat.com>
CommitterDate: Tue Sep 1 17:57:50 2020 +0200
cleanup: better expressing passing key arg to _hash
---
base/data-struct/hash.c | 9 +++++----
libdm/datastruct/hash.c | 9 +++++----
2 files changed, 10 insertions(+), 8 deletions(-)
diff --git a/base/data-struct/hash.c b/base/data-struct/hash.c
index 5ef5ed276..d60f28a25 100644
--- a/base/data-struct/hash.c
+++ b/base/data-struct/hash.c
@@ -59,26 +59,27 @@ static unsigned char _nums[] = {
209
};
-static struct dm_hash_node *_create_node(const char *str, unsigned len)
+static struct dm_hash_node *_create_node(const void *key, unsigned len)
{
struct dm_hash_node *n = malloc(sizeof(*n) + len);
if (n) {
- memcpy(n->key, str, len);
+ memcpy(n->key, key, len);
n->keylen = len;
}
return n;
}
-static unsigned long _hash(const char *str, unsigned len)
+static unsigned long _hash(const void *key, unsigned len)
{
+ const unsigned char *str = key;
unsigned long h = 0, g;
unsigned i;
for (i = 0; i < len; i++) {
h <<= 4;
- h += _nums[(unsigned char) *str++];
+ h += _nums[*str++];
g = h & ((unsigned long) 0xf << 16u);
if (g) {
h ^= g >> 16u;
diff --git a/libdm/datastruct/hash.c b/libdm/datastruct/hash.c
index 726347ea2..67261f8da 100644
--- a/libdm/datastruct/hash.c
+++ b/libdm/datastruct/hash.c
@@ -57,26 +57,27 @@ static unsigned char _nums[] = {
209
};
-static struct dm_hash_node *_create_node(const char *str, unsigned len)
+static struct dm_hash_node *_create_node(const void *key, unsigned len)
{
struct dm_hash_node *n = dm_malloc(sizeof(*n) + len);
if (n) {
- memcpy(n->key, str, len);
+ memcpy(n->key, key, len);
n->keylen = len;
}
return n;
}
-static unsigned long _hash(const char *str, unsigned len)
+static unsigned long _hash(const void *key, unsigned len)
{
+ const unsigned char *str = key;
unsigned long h = 0, g;
unsigned i;
for (i = 0; i < len; i++) {
h <<= 4;
- h += _nums[(unsigned char) *str++];
+ h += _nums[*str++];
g = h & ((unsigned long) 0xf << 16u);
if (g) {
h ^= g >> 16u;
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