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ruanhaishen
redis
Commits
6b29f2d8
Commit
6b29f2d8
authored
Jul 05, 2019
by
antirez
Browse files
Client side caching: RESP2 support.
parent
f099def7
Changes
2
Hide whitespace changes
Inline
Side-by-side
src/server.h
View file @
6b29f2d8
...
@@ -1946,6 +1946,7 @@ int pubsubUnsubscribeAllPatterns(client *c, int notify);
...
@@ -1946,6 +1946,7 @@ int pubsubUnsubscribeAllPatterns(client *c, int notify);
void
freePubsubPattern
(
void
*
p
);
void
freePubsubPattern
(
void
*
p
);
int
listMatchPubsubPattern
(
void
*
a
,
void
*
b
);
int
listMatchPubsubPattern
(
void
*
a
,
void
*
b
);
int
pubsubPublishMessage
(
robj
*
channel
,
robj
*
message
);
int
pubsubPublishMessage
(
robj
*
channel
,
robj
*
message
);
void
addReplyPubsubMessage
(
client
*
c
,
robj
*
channel
,
robj
*
msg
);
/* Keyspace events notification */
/* Keyspace events notification */
void
notifyKeyspaceEvent
(
int
type
,
char
*
event
,
robj
*
key
,
int
dbid
);
void
notifyKeyspaceEvent
(
int
type
,
char
*
event
,
robj
*
key
,
int
dbid
);
...
...
src/tracking.c
View file @
6b29f2d8
...
@@ -60,6 +60,7 @@
...
@@ -60,6 +60,7 @@
* use the most significant bits instead of the full 24 bits. */
* use the most significant bits instead of the full 24 bits. */
#define TRACKING_TABLE_SIZE (1<<24)
#define TRACKING_TABLE_SIZE (1<<24)
rax
**
TrackingTable
=
NULL
;
rax
**
TrackingTable
=
NULL
;
robj
*
TrackingChannelName
;
/* Remove the tracking state from the client 'c'. Note that there is not much
/* Remove the tracking state from the client 'c'. Note that there is not much
* to do for us here, if not to decrement the counter of the clients in
* to do for us here, if not to decrement the counter of the clients in
...
@@ -87,8 +88,10 @@ void enableTracking(client *c, uint64_t redirect_to) {
...
@@ -87,8 +88,10 @@ void enableTracking(client *c, uint64_t redirect_to) {
c
->
flags
&=
~
CLIENT_TRACKING_BROKEN_REDIR
;
c
->
flags
&=
~
CLIENT_TRACKING_BROKEN_REDIR
;
c
->
client_tracking_redirection
=
redirect_to
;
c
->
client_tracking_redirection
=
redirect_to
;
server
.
tracking_clients
++
;
server
.
tracking_clients
++
;
if
(
TrackingTable
==
NULL
)
if
(
TrackingTable
==
NULL
)
{
TrackingTable
=
zcalloc
(
sizeof
(
rax
*
)
*
TRACKING_TABLE_SIZE
);
TrackingTable
=
zcalloc
(
sizeof
(
rax
*
)
*
TRACKING_TABLE_SIZE
);
TrackingChannelName
=
createStringObject
(
"__redis__:invalidate"
,
20
);
}
}
}
/* This function is called after the excution of a readonly command in the
/* This function is called after the excution of a readonly command in the
...
@@ -130,6 +133,7 @@ void trackingInvalidateKey(robj *keyobj) {
...
@@ -130,6 +133,7 @@ void trackingInvalidateKey(robj *keyobj) {
uint64_t
id
;
uint64_t
id
;
memcpy
(
&
id
,
ri
.
key
,
ri
.
key_len
);
memcpy
(
&
id
,
ri
.
key
,
ri
.
key_len
);
client
*
c
=
lookupClientByID
(
id
);
client
*
c
=
lookupClientByID
(
id
);
int
using_redirection
=
0
;
if
(
c
->
client_tracking_redirection
)
{
if
(
c
->
client_tracking_redirection
)
{
client
*
redir
=
lookupClientByID
(
c
->
client_tracking_redirection
);
client
*
redir
=
lookupClientByID
(
c
->
client_tracking_redirection
);
if
(
!
redir
)
{
if
(
!
redir
)
{
...
@@ -144,13 +148,21 @@ void trackingInvalidateKey(robj *keyobj) {
...
@@ -144,13 +148,21 @@ void trackingInvalidateKey(robj *keyobj) {
continue
;
continue
;
}
}
c
=
redir
;
c
=
redir
;
using_redirection
=
1
;
}
}
/* Only send such info for clients in RESP version 3 or more. */
/* Only send such info for clients in RESP version 3 or more. However
* if redirection is active, and the connection we redirect to is
* in Pub/Sub mode, we can support the feature with RESP 2 as well,
* by sending Pub/Sub messages in the __redis__:invalidate channel. */
if
(
c
->
resp
>
2
)
{
if
(
c
->
resp
>
2
)
{
addReplyPushLen
(
c
,
2
);
addReplyPushLen
(
c
,
2
);
addReplyBulkCBuffer
(
c
,
"invalidate"
,
10
);
addReplyBulkCBuffer
(
c
,
"invalidate"
,
10
);
addReplyLongLong
(
c
,
hash
);
addReplyLongLong
(
c
,
hash
);
}
else
if
(
using_redirection
&&
c
->
flags
&
CLIENT_PUBSUB
)
{
robj
*
msg
=
createStringObjectFromLongLong
(
hash
);
addReplyPubsubMessage
(
c
,
TrackingChannelName
,
msg
);
decrRefCount
(
msg
);
}
}
}
}
raxStop
(
&
ri
);
raxStop
(
&
ri
);
...
...
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