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redis
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4ab98823
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redis
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4ab98823
编写于
12月 30, 2010
作者:
A
antirez
浏览文件
操作
浏览文件
下载
电子邮件补丁
差异文件
more work done for diskstore without trying to compile, more work needed to build again.
上级
1609a1c4
变更
7
隐藏空白更改
内联
并排
Showing
7 changed file
with
104 addition
and
22 deletion
+104
-22
src/config.c
src/config.c
+2
-2
src/db.c
src/db.c
+3
-0
src/diskstore.c
src/diskstore.c
+54
-1
src/dscache.c
src/dscache.c
+16
-4
src/rdb.c
src/rdb.c
+26
-14
src/redis.c
src/redis.c
+1
-1
src/redis.h
src/redis.h
+2
-0
未找到文件。
src/config.c
浏览文件 @
4ab98823
...
...
@@ -246,8 +246,8 @@ void loadServerConfig(char *filename) {
err
=
"argument must be 'yes' or 'no'"
;
goto
loaderr
;
}
}
else
if
(
!
strcasecmp
(
argv
[
0
],
"diskstore-path"
)
&&
argc
==
2
)
{
z
free
(
server
.
ds_path
);
server
.
ds_path
=
zstrdup
(
argv
[
1
]);
sds
free
(
server
.
ds_path
);
server
.
ds_path
=
sdsnew
(
argv
[
1
]);
}
else
if
(
!
strcasecmp
(
argv
[
0
],
"cache-max-memory"
)
&&
argc
==
2
)
{
server
.
cache_max_memory
=
memtoll
(
argv
[
1
],
NULL
);
}
else
if
(
!
strcasecmp
(
argv
[
0
],
"hash-max-zipmap-entries"
)
&&
argc
==
2
)
{
...
...
src/db.c
浏览文件 @
4ab98823
...
...
@@ -66,6 +66,9 @@ int dbAdd(redisDb *db, robj *key, robj *val) {
}
else
{
sds
copy
=
sdsdup
(
key
->
ptr
);
dictAdd
(
db
->
dict
,
copy
,
val
);
if
(
server
.
ds_enabled
)
{
/* FIXME: remove entry from negative cache */
}
return
REDIS_OK
;
}
}
...
...
src/diskstore.c
浏览文件 @
4ab98823
...
...
@@ -70,6 +70,7 @@
*/
#include "redis.h"
#include "sha1.h"
#include <fcntl.h>
#include <sys/stat.h>
...
...
@@ -138,10 +139,62 @@ int dsClose(void) {
return
REDIS_OK
;
}
/* Convert key into full path for this object. Dirty but hopefully
* is fast enough. */
void
dsKeyToPath
(
redisDb
*
db
,
unsigned
char
*
buf
,
robj
*
key
)
{
SHA1_CTX
ctx
;
unsigned
char
hash
[
20
];
char
*
hex
,
digits
[]
=
"0123456789abcdef"
;
int
j
,
l
;
SHA1Init
(
&
ctx
);
SHA1Update
(
&
ctx
,
key
->
ptr
,
sdslen
(
key
->
ptr
));
SHA1Final
(
hash
,
&
ctx
);
/* Convert the hash into hex format */
for
(
j
=
0
;
j
<
20
;
j
++
)
{
hex
[
j
*
2
]
=
digits
[(
hash
[
j
]
&
0xF0
)
>>
4
];
hex
[(
j
*
2
)
+
1
]
=
digits
[
hash
[
j
]
&
0x0F
];
}
/* Create the object path. Start with server.ds_path that's the root dir */
l
=
sdslen
(
server
.
ds_path
);
memcpy
(
buf
,
server
.
ds_path
,
l
);
buf
+=
l
;
*
buf
++
=
'/'
;
/* Then add xx/yy/ that is the two level directories */
buf
[
0
]
=
hex
[
0
];
buf
[
1
]
=
hex
[
1
];
buf
[
2
]
=
'/'
;
buf
[
3
]
=
hex
[
2
];
buf
[
4
]
=
hex
[
3
];
buf
[
5
]
=
'/'
;
buf
+=
6
;
/* Add the database number followed by _ and finall the SHA1 hex */
l
=
ll2string
(
buf
,
64
,
db
->
id
);
buf
+=
l
;
buf
[
0
]
=
'_'
;
memcpy
(
buf
+
1
,
hex
,
40
);
buf
[
41
]
=
'\0'
;
}
int
dsSet
(
redisDb
*
db
,
robj
*
key
,
robj
*
val
)
{
char
buf
[
1024
];
FILE
*
fp
;
int
retval
;
dsKeyToPath
(
buf
,
key
);
fp
=
fopen
(
buf
,
"w"
);
if
((
retval
=
rdbSaveKeyValuePair
(
fp
,
db
,
key
,
val
,
time
(
NULL
)))
==
-
1
)
return
REDIS_ERR
;
fclose
(
fp
);
if
(
retval
==
0
)
unlink
(
buf
);
/* Expired key */
return
REDIS_OK
;
}
robj
*
dsGet
(
redisDb
*
db
,
robj
*
key
)
{
robj
*
dsGet
(
redisDb
*
db
,
robj
*
key
,
time_t
*
expire
)
{
return
createStringObject
(
"foo"
,
3
);
}
...
...
src/dscache.c
浏览文件 @
4ab98823
...
...
@@ -84,6 +84,9 @@
* - What happens with MULTI/EXEC?
*
* Good question.
*
* - If dsSet() fails on the write thread log the error and reschedule the
* key for flush.
*/
/* Virtual Memory is composed mainly of two subsystems:
...
...
@@ -285,8 +288,15 @@ void vmThreadedIOCompletedJob(aeEventLoop *el, int fd, void *privdata,
(
unsigned
char
*
)
j
->
key
->
ptr
);
if
(
j
->
type
==
REDIS_IOJOB_LOAD
)
{
/* Create the key-value pair in the in-memory database */
dbAdd
(
j
->
db
,
j
->
key
,
j
->
val
);
incrRefCount
(
j
->
val
);
if
(
j
->
val
!=
NULL
)
{
dbAdd
(
j
->
db
,
j
->
key
,
j
->
val
);
incrRefCount
(
j
->
val
);
setExpire
(
j
->
db
,
j
->
key
,
j
->
expire
);
}
else
{
/* The key does not exist. Create a negative cache entry
* for this key. */
/* FIXME: add this entry into the negative cache */
}
/* Handle clients waiting for this key to be loaded. */
handleClientsBlockedOnSwappedKey
(
j
->
db
,
j
->
key
);
freeIOJob
(
j
);
...
...
@@ -342,8 +352,10 @@ void *IOThreadEntryPoint(void *arg) {
/* Process the Job */
if
(
j
->
type
==
REDIS_IOJOB_LOAD
)
{
j
->
val
=
dsGet
(
j
->
db
,
j
->
key
);
redisAssert
(
j
->
val
!=
NULL
);
time_t
expire
;
j
->
val
=
dsGet
(
j
->
db
,
j
->
key
,
&
expire
);
if
(
j
->
val
)
j
->
expire
=
expire
;
}
else
if
(
j
->
type
==
REDIS_IOJOB_SAVE
)
{
redisAssert
(
j
->
val
->
storage
==
REDIS_DS_SAVING
);
if
(
j
->
val
)
...
...
src/rdb.c
浏览文件 @
4ab98823
...
...
@@ -395,6 +395,31 @@ off_t rdbSavedObjectLen(robj *o) {
return
len
;
}
/* Save a key-value pair, with expire time, type, key, value.
* On error -1 is returned.
* On success if the key was actaully saved 1 is returned, otherwise 0
* is returned (the key was already expired). */
int
rdbSaveKeyValuePair
(
FILE
*
fp
,
redisDb
*
db
,
robj
*
key
,
robj
*
val
,
time_t
now
)
{
time_t
expiretime
;
expiretime
=
getExpire
(
db
,
&
key
);
/* Save the expire time */
if
(
expiretime
!=
-
1
)
{
/* If this key is already expired skip it */
if
(
expiretime
<
now
)
return
0
;
if
(
rdbSaveType
(
fp
,
REDIS_EXPIRETIME
)
==
-
1
)
return
-
1
;
if
(
rdbSaveTime
(
fp
,
expiretime
)
==
-
1
)
return
-
1
;
}
/* Save type, key, value */
if
(
rdbSaveType
(
fp
,
val
->
type
)
==
-
1
)
return
-
1
;
if
(
rdbSaveStringObject
(
fp
,
&
key
)
==
-
1
)
return
-
1
;
if
(
rdbSaveObject
(
fp
,
val
)
==
-
1
)
return
-
1
;
return
1
;
}
/* Save the DB on disk. Return REDIS_ERR on error, REDIS_OK on success */
int
rdbSave
(
char
*
filename
)
{
dictIterator
*
di
=
NULL
;
...
...
@@ -432,22 +457,9 @@ int rdbSave(char *filename) {
while
((
de
=
dictNext
(
di
))
!=
NULL
)
{
sds
keystr
=
dictGetEntryKey
(
de
);
robj
key
,
*
o
=
dictGetEntryVal
(
de
);
time_t
expiretime
;
initStaticStringObject
(
key
,
keystr
);
expiretime
=
getExpire
(
db
,
&
key
);
/* Save the expire time */
if
(
expiretime
!=
-
1
)
{
/* If this key is already expired skip it */
if
(
expiretime
<
now
)
continue
;
if
(
rdbSaveType
(
fp
,
REDIS_EXPIRETIME
)
==
-
1
)
goto
werr
;
if
(
rdbSaveTime
(
fp
,
expiretime
)
==
-
1
)
goto
werr
;
}
/* Save type, key, value */
if
(
rdbSaveType
(
fp
,
o
->
type
)
==
-
1
)
goto
werr
;
if
(
rdbSaveStringObject
(
fp
,
&
key
)
==
-
1
)
goto
werr
;
if
(
rdbSaveObject
(
fp
,
o
)
==
-
1
)
goto
werr
;
if
(
rdbSaveKeyValuePair
(
fp
,
db
,
key
,
o
,
now
)
==
-
1
)
goto
werr
;
}
dictReleaseIterator
(
di
);
}
...
...
src/redis.c
浏览文件 @
4ab98823
...
...
@@ -769,7 +769,7 @@ void initServerConfig() {
server
.
maxmemory_policy
=
REDIS_MAXMEMORY_VOLATILE_LRU
;
server
.
maxmemory_samples
=
3
;
server
.
ds_enabled
=
0
;
server
.
ds_path
=
zstrdup
(
"/tmp/redis.ds"
);
server
.
ds_path
=
sdsnew
(
"/tmp/redis.ds"
);
server
.
cache_max_memory
=
64LL
*
1024
*
1024
;
/* 64 MB of RAM */
server
.
cache_blocked_clients
=
0
;
server
.
hash_max_zipmap_entries
=
REDIS_HASH_MAX_ZIPMAP_ENTRIES
;
...
...
src/redis.h
浏览文件 @
4ab98823
...
...
@@ -554,6 +554,7 @@ typedef struct iojob {
robj
*
key
;
/* This I/O request is about this key */
robj
*
val
;
/* the value to swap for REDIS_IOJOB_SAVE, otherwise this
* field is populated by the I/O thread for REDIS_IOJOB_LOAD. */
time_t
expire
;
/* Expire time for this key on REDIS_IOJOB_LOAD */
}
iojob
;
/* When diskstore is enabled and a flush operation is requested we push
...
...
@@ -746,6 +747,7 @@ off_t rdbSavedObjectLen(robj *o);
off_t
rdbSavedObjectPages
(
robj
*
o
);
robj
*
rdbLoadObject
(
int
type
,
FILE
*
fp
);
void
backgroundSaveDoneHandler
(
int
statloc
);
int
rdbSaveKeyValuePair
(
FILE
*
fp
,
redisDb
*
db
,
robj
*
key
,
robj
*
val
,
time_t
now
);
/* AOF persistence */
void
flushAppendOnlyFile
(
void
);
...
...
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