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ruanhaishen
redis
Commits
db16a861
Commit
db16a861
authored
Jul 03, 2019
by
antirez
Browse files
Client side caching: CLIENT TRACKING subcommand.
parent
c29f3bcf
Changes
1
Hide whitespace changes
Inline
Side-by-side
src/networking.c
View file @
db16a861
...
...
@@ -1966,6 +1966,7 @@ void clientCommand(client *c) {
"reply (on|off|skip) -- Control the replies sent to the current connection.",
"setname <name> -- Assign the name <name> to the current connection.",
"unblock <clientid> [TIMEOUT|ERROR] -- Unblock the specified blocked client.",
"tracking (on|off) [REDIRECT <id>] -- Enable client keys tracking for client side caching.",
NULL
};
addReplyHelp(c, help);
...
...
@@ -2122,20 +2123,56 @@ NULL
addReply(c,shared.czero);
}
} else if (!strcasecmp(c->argv[1]->ptr,"setname") && c->argc == 3) {
/* CLIENT SETNAME */
if (clientSetNameOrReply(c,c->argv[2]) == C_OK)
addReply(c,shared.ok);
} else if (!strcasecmp(c->argv[1]->ptr,"getname") && c->argc == 2) {
/* CLIENT GETNAME */
if (c->name)
addReplyBulk(c,c->name);
else
addReplyNull(c);
} else if (!strcasecmp(c->argv[1]->ptr,"pause") && c->argc == 3) {
/* CLIENT PAUSE */
long long duration;
if
(
getTimeoutFromObjectOrReply
(
c
,
c
->
argv
[
2
],
&
duration
,
UNIT_MILLISECONDS
)
!=
C_OK
)
return
;
if (getTimeoutFromObjectOrReply(c,c->argv[2],&duration,
UNIT_MILLISECONDS)
!= C_OK) return;
pauseClients(duration);
addReply(c,shared.ok);
} else if (!strcasecmp(c->argv[1]->ptr,"tracking") &&
(c->argc == 3 || c->argc == 5))
{
/* CLIENT TRACKING (on|off) [REDIRECT <id>] */
long long redir = 0;
/* Parse the redirection option: we'll require the client with
* the specified ID to exist right now, even if it is possible
* it will get disconnected later. */
if (c->argc == 5) {
if (strcasecmp(c->argv[3]->ptr,"redirect") != 0) {
addReply(c,shared.syntaxerr);
return;
} else {
if (getLongLongFromObjectOrReply(c,c->argv[4],&redir,NULL) !=
C_OK) return;
if (lookupClientByID(redir) == NULL) {
addReplyError(c,"The client ID you want redirect to "
"does not exist");
return;
}
}
}
if (!strcasecmp(c->argv[2]->ptr,"on")) {
enableTracking(c,redir);
} else if (!strcasecmp(c->argv[2]->ptr,"off")) {
disableTracking(c);
} else {
addReply(c,shared.syntaxerr);
return;
}
addReply(c,shared.ok);
} else {
addReplyErrorFormat(c, "Unknown subcommand or wrong number of arguments for '%s'. Try CLIENT HELP", (char*)c->argv[1]->ptr);
}
...
...
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