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ruanhaishen
redis
Commits
b6eb9703
Commit
b6eb9703
authored
May 31, 2010
by
Pieter Noordhuis
Browse files
fixed signedness and disambiguate variable names
parent
2796f6da
Changes
3
Hide whitespace changes
Inline
Side-by-side
redis.c
View file @
b6eb9703
...
...
@@ -4788,16 +4788,16 @@ static robj *lPop(robj *subject, int where) {
robj
*
value
=
NULL
;
if
(
subject
->
encoding
==
REDIS_ENCODING_ZIPLIST
)
{
unsigned
char
*
p
;
char *v;
unsigned
char
*
v
str
;
unsigned
int
vlen
;
long long v
val
;
long
long
v
long
;
int
pos
=
(
where
==
REDIS_HEAD
)
?
0
:
-
1
;
p
=
ziplistIndex
(
subject
->
ptr
,
pos
);
if (ziplistGet(p,&v,&vlen,&v
val
)) {
if (v) {
value = createStringObject(
v
,vlen);
if
(
ziplistGet
(
p
,
&
v
str
,
&
vlen
,
&
v
long
))
{
if
(
v
str
)
{
value
=
createStringObject
(
(
char
*
)
vstr
,
vlen
);
}
else
{
value = createStringObjectFromLongLong(v
val
);
value
=
createStringObjectFromLongLong
(
v
long
);
}
/* We only need to delete an element when it exists */
subject
->
ptr
=
ziplistDelete
(
subject
->
ptr
,
&
p
);
...
...
@@ -4902,15 +4902,15 @@ static robj *lGet(lEntry *entry) {
lIterator
*
li
=
entry
->
li
;
robj
*
value
=
NULL
;
if
(
li
->
encoding
==
REDIS_ENCODING_ZIPLIST
)
{
char *v;
unsigned
char
*
v
str
;
unsigned
int
vlen
;
long long v
val
;
long
long
v
long
;
redisAssert
(
entry
->
zi
!=
NULL
);
if (ziplistGet(entry->zi,&v,&vlen,&v
val
)) {
if (v) {
value = createStringObject(
v
,vlen);
if
(
ziplistGet
(
entry
->
zi
,
&
v
str
,
&
vlen
,
&
v
long
))
{
if
(
v
str
)
{
value
=
createStringObject
(
(
char
*
)
vstr
,
vlen
);
}
else
{
value = createStringObjectFromLongLong(v
val
);
value
=
createStringObjectFromLongLong
(
v
long
);
}
}
}
else
if
(
li
->
encoding
==
REDIS_ENCODING_LIST
)
{
...
...
@@ -5009,15 +5009,15 @@ static void lindexCommand(redisClient *c) {
if
(
o
->
encoding
==
REDIS_ENCODING_ZIPLIST
)
{
unsigned
char
*
p
;
char *v;
unsigned
char
*
v
str
;
unsigned
int
vlen
;
long long v
val
;
long
long
v
long
;
p
=
ziplistIndex
(
o
->
ptr
,
index
);
if (ziplistGet(p,&v,&vlen,&v
val
)) {
if (v) {
value = createStringObject(
v
,vlen);
if
(
ziplistGet
(
p
,
&
v
str
,
&
vlen
,
&
v
long
))
{
if
(
v
str
)
{
value
=
createStringObject
(
(
char
*
)
vstr
,
vlen
);
}
else
{
value = createStringObjectFromLongLong(v
val
);
value
=
createStringObjectFromLongLong
(
v
long
);
}
addReplyBulk
(
c
,
value
);
decrRefCount
(
value
);
...
...
ziplist.c
View file @
b6eb9703
...
...
@@ -63,7 +63,7 @@ typedef struct zlentry {
}
zlentry
;
/* Return bytes needed to store integer encoded by 'encoding' */
static
unsigned
int
zipEncodingSize
(
char
encoding
)
{
static
unsigned
int
zipEncodingSize
(
unsigned
char
encoding
)
{
if
(
encoding
==
ZIP_ENC_SHORT
)
{
return
sizeof
(
short
int
);
}
else
if
(
encoding
==
ZIP_ENC_INT
)
{
...
...
@@ -173,12 +173,12 @@ static int zipPrevLenByteDiff(unsigned char *p, unsigned int len) {
/* Check if string pointed to by 'entry' can be encoded as an integer.
* Stores the integer value in 'v' and its encoding in 'encoding'.
* Warning: this function requires a NULL-terminated string! */
static
int
zipTryEncoding
(
char
*
entry
,
long
long
*
v
,
char
*
encoding
)
{
static
int
zipTryEncoding
(
unsigned
char
*
entry
,
long
long
*
v
,
unsigned
char
*
encoding
)
{
long
long
value
;
char
*
eptr
;
if
(
entry
[
0
]
==
'-'
||
(
entry
[
0
]
>=
'0'
&&
entry
[
0
]
<=
'9'
))
{
value
=
strtoll
(
entry
,
&
eptr
,
10
);
value
=
strtoll
(
(
char
*
)
entry
,
&
eptr
,
10
);
if
(
eptr
[
0
]
!=
'\0'
)
return
0
;
if
(
value
>=
SHRT_MIN
&&
value
<=
SHRT_MAX
)
{
*
encoding
=
ZIP_ENC_SHORT
;
...
...
@@ -194,7 +194,7 @@ static int zipTryEncoding(char *entry, long long *v, char *encoding) {
}
/* Store integer 'value' at 'p', encoded as 'encoding' */
static
void
zipSaveInteger
(
unsigned
char
*
p
,
long
long
value
,
char
encoding
)
{
static
void
zipSaveInteger
(
unsigned
char
*
p
,
long
long
value
,
unsigned
char
encoding
)
{
short
int
s
;
int
i
;
long
long
l
;
...
...
@@ -213,7 +213,7 @@ static void zipSaveInteger(unsigned char *p, long long value, char encoding) {
}
/* Read integer encoded as 'encoding' from 'p' */
static
long
long
zipLoadInteger
(
unsigned
char
*
p
,
char
encoding
)
{
static
long
long
zipLoadInteger
(
unsigned
char
*
p
,
unsigned
char
encoding
)
{
short
int
s
;
int
i
;
long
long
l
,
ret
;
...
...
@@ -269,7 +269,7 @@ static unsigned char *ziplistResize(unsigned char *zl, unsigned int len) {
}
/* Delete "num" entries, starting at "p". Returns pointer to the ziplist. */
static
unsigned
char
*
__ziplistDelete
(
unsigned
char
*
zl
,
unsigned
char
*
p
,
int
num
)
{
static
unsigned
char
*
__ziplistDelete
(
unsigned
char
*
zl
,
unsigned
char
*
p
,
unsigned
int
num
)
{
unsigned
int
i
,
totlen
,
deleted
=
0
;
int
nextdiff
=
0
;
zlentry
first
=
zipEntry
(
p
);
...
...
@@ -306,11 +306,11 @@ static unsigned char *__ziplistDelete(unsigned char *zl, unsigned char *p, int n
}
/* Insert item at "p". */
static
unsigned
char
*
__ziplistInsert
(
unsigned
char
*
zl
,
unsigned
char
*
p
,
char
*
s
,
unsigned
int
slen
)
{
static
unsigned
char
*
__ziplistInsert
(
unsigned
char
*
zl
,
unsigned
char
*
p
,
unsigned
char
*
s
,
unsigned
int
slen
)
{
unsigned
int
curlen
=
ZIPLIST_BYTES
(
zl
),
reqlen
,
prevlen
=
0
;
unsigned
int
offset
,
nextdiff
=
0
;
unsigned
char
*
tail
;
char
encoding
=
ZIP_ENC_RAW
;
unsigned
char
encoding
=
ZIP_ENC_RAW
;
long
long
value
;
zlentry
entry
;
...
...
@@ -372,7 +372,7 @@ static unsigned char *__ziplistInsert(unsigned char *zl, unsigned char *p, char
return
zl
;
}
unsigned
char
*
ziplistPush
(
unsigned
char
*
zl
,
char
*
s
,
unsigned
int
slen
,
int
where
)
{
unsigned
char
*
ziplistPush
(
unsigned
char
*
zl
,
unsigned
char
*
s
,
unsigned
int
slen
,
int
where
)
{
unsigned
char
*
p
;
p
=
(
where
==
ZIPLIST_HEAD
)
?
ZIPLIST_ENTRY_HEAD
(
zl
)
:
ZIPLIST_ENTRY_END
(
zl
);
return
__ziplistInsert
(
zl
,
p
,
s
,
slen
);
...
...
@@ -455,7 +455,7 @@ unsigned char *ziplistPrev(unsigned char *zl, unsigned char *p) {
* on the encoding of the entry. 'e' is always set to NULL to be able
* to find out whether the string pointer or the integer value was set.
* Return 0 if 'p' points to the end of the zipmap, 1 otherwise. */
unsigned
int
ziplistGet
(
unsigned
char
*
p
,
char
**
sstr
,
unsigned
int
*
slen
,
long
long
*
sval
)
{
unsigned
int
ziplistGet
(
unsigned
char
*
p
,
unsigned
char
**
sstr
,
unsigned
int
*
slen
,
long
long
*
sval
)
{
zlentry
entry
;
if
(
p
==
NULL
||
p
[
0
]
==
ZIP_END
)
return
0
;
if
(
sstr
)
*
sstr
=
NULL
;
...
...
@@ -464,7 +464,7 @@ unsigned int ziplistGet(unsigned char *p, char **sstr, unsigned int *slen, long
if
(
entry
.
encoding
==
ZIP_ENC_RAW
)
{
if
(
sstr
)
{
*
slen
=
entry
.
len
;
*
sstr
=
(
char
*
)
p
+
entry
.
headersize
;
*
sstr
=
p
+
entry
.
headersize
;
}
}
else
{
if
(
sval
)
{
...
...
@@ -475,7 +475,7 @@ unsigned int ziplistGet(unsigned char *p, char **sstr, unsigned int *slen, long
}
/* Insert an entry at "p". */
unsigned
char
*
ziplistInsert
(
unsigned
char
*
zl
,
unsigned
char
*
p
,
char
*
s
,
unsigned
int
slen
)
{
unsigned
char
*
ziplistInsert
(
unsigned
char
*
zl
,
unsigned
char
*
p
,
unsigned
char
*
s
,
unsigned
int
slen
)
{
return
__ziplistInsert
(
zl
,
p
,
s
,
slen
);
}
...
...
@@ -501,10 +501,10 @@ unsigned char *ziplistDeleteRange(unsigned char *zl, unsigned int index, unsigne
}
/* Compare entry pointer to by 'p' with 'entry'. Return 1 if equal. */
unsigned
int
ziplistCompare
(
unsigned
char
*
p
,
char
*
sstr
,
unsigned
int
slen
)
{
unsigned
int
ziplistCompare
(
unsigned
char
*
p
,
unsigned
char
*
sstr
,
unsigned
int
slen
)
{
zlentry
entry
;
char
sencoding
;
long
long
val
,
sval
;
unsigned
char
sencoding
;
long
long
z
val
,
sval
;
if
(
p
[
0
]
==
ZIP_END
)
return
0
;
entry
=
zipEntry
(
p
);
...
...
@@ -519,8 +519,8 @@ unsigned int ziplistCompare(unsigned char *p, char *sstr, unsigned int slen) {
/* Try to compare encoded values */
if
(
zipTryEncoding
(
sstr
,
&
sval
,
&
sencoding
))
{
if
(
entry
.
encoding
==
sencoding
)
{
val
=
zipLoadInteger
(
p
+
entry
.
headersize
,
entry
.
encoding
);
return
val
==
sval
;
z
val
=
zipLoadInteger
(
p
+
entry
.
headersize
,
entry
.
encoding
);
return
z
val
==
sval
;
}
}
}
...
...
ziplist.h
View file @
b6eb9703
...
...
@@ -2,15 +2,15 @@
#define ZIPLIST_TAIL 1
unsigned
char
*
ziplistNew
(
void
);
unsigned
char
*
ziplistPush
(
unsigned
char
*
zl
,
char
*
s
,
unsigned
int
slen
,
int
where
);
unsigned
char
*
ziplistPush
(
unsigned
char
*
zl
,
unsigned
char
*
s
,
unsigned
int
slen
,
int
where
);
unsigned
char
*
ziplistPop
(
unsigned
char
*
zl
,
sds
*
target
,
int
where
);
unsigned
char
*
ziplistIndex
(
unsigned
char
*
zl
,
int
index
);
unsigned
char
*
ziplistNext
(
unsigned
char
*
zl
,
unsigned
char
*
p
);
unsigned
char
*
ziplistPrev
(
unsigned
char
*
zl
,
unsigned
char
*
p
);
unsigned
int
ziplistGet
(
unsigned
char
*
p
,
char
**
s
str
,
unsigned
int
*
slen
,
long
long
*
s
val
);
unsigned
char
*
ziplistInsert
(
unsigned
char
*
zl
,
unsigned
char
*
p
,
char
*
s
,
unsigned
int
slen
);
unsigned
int
ziplistGet
(
unsigned
char
*
p
,
unsigned
char
**
s
val
,
unsigned
int
*
slen
,
long
long
*
l
val
);
unsigned
char
*
ziplistInsert
(
unsigned
char
*
zl
,
unsigned
char
*
p
,
unsigned
char
*
s
,
unsigned
int
slen
);
unsigned
char
*
ziplistDelete
(
unsigned
char
*
zl
,
unsigned
char
**
p
);
unsigned
char
*
ziplistDeleteRange
(
unsigned
char
*
zl
,
unsigned
int
index
,
unsigned
int
num
);
unsigned
int
ziplistCompare
(
unsigned
char
*
p
,
char
*
entry
,
unsigned
int
e
len
);
unsigned
int
ziplistCompare
(
unsigned
char
*
p
,
unsigned
char
*
s
,
unsigned
int
s
len
);
unsigned
int
ziplistLen
(
unsigned
char
*
zl
);
unsigned
int
ziplistSize
(
unsigned
char
*
zl
);
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