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ruanhaishen
redis
Commits
de77addb
Commit
de77addb
authored
Mar 09, 2011
by
antirez
Browse files
ziplist are now endianess agnostic
parent
9f517b92
Changes
1
Hide whitespace changes
Inline
Side-by-side
src/ziplist.c
View file @
de77addb
...
...
@@ -69,6 +69,7 @@
#include "zmalloc.h"
#include "util.h"
#include "ziplist.h"
#include "endian.h"
#define ZIP_END 255
#define ZIP_BIGLEN 254
...
...
@@ -206,6 +207,7 @@ static unsigned int zipPrevDecodeLength(unsigned char *p, unsigned int *lensize)
}
else
{
if
(
lensize
)
*
lensize
=
1
+
sizeof
(
len
);
memcpy
(
&
len
,
p
+
1
,
sizeof
(
len
));
memrev32ifbe
(
&
len
);
}
return
len
;
}
...
...
@@ -222,6 +224,7 @@ static unsigned int zipPrevEncodeLength(unsigned char *p, unsigned int len) {
}
else
{
p
[
0
]
=
ZIP_BIGLEN
;
memcpy
(
p
+
1
,
&
len
,
sizeof
(
len
));
memrev32ifbe
(
p
+
1
);
return
1
+
sizeof
(
len
);
}
}
...
...
@@ -233,6 +236,7 @@ static void zipPrevEncodeLengthForceLarge(unsigned char *p, unsigned int len) {
if
(
p
==
NULL
)
return
;
p
[
0
]
=
ZIP_BIGLEN
;
memcpy
(
p
+
1
,
&
len
,
sizeof
(
len
));
memrev32ifbe
(
p
+
1
);
}
/* Return the difference in number of bytes needed to store the new length
...
...
@@ -273,12 +277,15 @@ static void zipSaveInteger(unsigned char *p, int64_t value, unsigned char encodi
if
(
encoding
==
ZIP_INT_16B
)
{
i16
=
value
;
memcpy
(
p
,
&
i16
,
sizeof
(
i16
));
memrev16ifbe
(
p
);
}
else
if
(
encoding
==
ZIP_INT_32B
)
{
i32
=
value
;
memcpy
(
p
,
&
i32
,
sizeof
(
i32
));
memrev32ifbe
(
p
);
}
else
if
(
encoding
==
ZIP_INT_64B
)
{
i64
=
value
;
memcpy
(
p
,
&
i64
,
sizeof
(
i64
));
memrev64ifbe
(
p
);
}
else
{
assert
(
NULL
);
}
...
...
@@ -291,12 +298,15 @@ static int64_t zipLoadInteger(unsigned char *p, unsigned char encoding) {
int64_t
i64
,
ret
=
0
;
if
(
encoding
==
ZIP_INT_16B
)
{
memcpy
(
&
i16
,
p
,
sizeof
(
i16
));
memrev16ifbe
(
&
i16
);
ret
=
i16
;
}
else
if
(
encoding
==
ZIP_INT_32B
)
{
memcpy
(
&
i32
,
p
,
sizeof
(
i32
));
memrev16ifbe
(
&
i32
);
ret
=
i32
;
}
else
if
(
encoding
==
ZIP_INT_64B
)
{
memcpy
(
&
i64
,
p
,
sizeof
(
i64
));
memrev16ifbe
(
&
i64
);
ret
=
i64
;
}
else
{
assert
(
NULL
);
...
...
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