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ruanhaishen
redis
Commits
b83a52c6
Commit
b83a52c6
authored
Apr 27, 2011
by
Pieter Noordhuis
Browse files
Use string2ll in ziplist code (faster)
parent
20dad91b
Changes
1
Hide whitespace changes
Inline
Side-by-side
src/ziplist.c
View file @
b83a52c6
...
...
@@ -67,10 +67,9 @@
#include <assert.h>
#include <limits.h>
#include "zmalloc.h"
#include "util.h"
#include "ziplist.h"
int
ll2string
(
char
*
s
,
size_t
len
,
long
long
value
);
#define ZIP_END 255
#define ZIP_BIGLEN 254
...
...
@@ -248,22 +247,9 @@ static int zipPrevLenByteDiff(unsigned char *p, unsigned int len) {
* Stores the integer value in 'v' and its encoding in 'encoding'. */
static
int
zipTryEncoding
(
unsigned
char
*
entry
,
unsigned
int
entrylen
,
long
long
*
v
,
unsigned
char
*
encoding
)
{
long
long
value
;
char
*
eptr
;
char
buf
[
32
];
if
(
entrylen
>=
32
||
entrylen
==
0
)
return
0
;
if
(
entry
[
0
]
==
'-'
||
(
entry
[
0
]
>=
'0'
&&
entry
[
0
]
<=
'9'
))
{
int
slen
;
/* Perform a back-and-forth conversion to make sure that
* the string turned into an integer is not losing any info. */
memcpy
(
buf
,
entry
,
entrylen
);
buf
[
entrylen
]
=
'\0'
;
value
=
strtoll
(
buf
,
&
eptr
,
10
);
if
(
eptr
[
0
]
!=
'\0'
)
return
0
;
slen
=
ll2string
(
buf
,
32
,
value
);
if
(
entrylen
!=
(
unsigned
)
slen
||
memcmp
(
buf
,
entry
,
slen
))
return
0
;
if
(
string2ll
((
char
*
)
entry
,
entrylen
,
&
value
))
{
/* Great, the string can be encoded. Check what's the smallest
* of our encoding types that can hold this value. */
if
(
value
>=
INT16_MIN
&&
value
<=
INT16_MAX
)
{
...
...
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