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Client side caching: CLIENT TRACKING subcommand.

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This commit is contained in:
antirez 2019-07-03 11:58:20 +02:00
parent c29f3bcf2e
commit db16a861a1
1 changed files with 39 additions and 2 deletions
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41
src/networking.c
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@ -1966,6 +1966,7 @@ void clientCommand(client *c) {
"reply (on|off|skip) -- Control the replies sent to the current connection.", "reply (on|off|skip) -- Control the replies sent to the current connection.",
"setname <name> -- Assign the name <name> to the current connection.", "setname <name> -- Assign the name <name> to the current connection.",
"unblock <clientid> [TIMEOUT|ERROR] -- Unblock the specified blocked client.", "unblock <clientid> [TIMEOUT|ERROR] -- Unblock the specified blocked client.",
"tracking (on|off) [REDIRECT <id>] -- Enable client keys tracking for client side caching.",
NULL NULL
}; };
addReplyHelp(c, help); addReplyHelp(c, help);
@ -2122,20 +2123,56 @@ NULL
addReply(c,shared.czero); addReply(c,shared.czero);
} }
} else if (!strcasecmp(c->argv[1]->ptr,"setname") && c->argc == 3) { } else if (!strcasecmp(c->argv[1]->ptr,"setname") && c->argc == 3) {
/* CLIENT SETNAME */
if (clientSetNameOrReply(c,c->argv[2]) == C_OK) if (clientSetNameOrReply(c,c->argv[2]) == C_OK)
addReply(c,shared.ok); addReply(c,shared.ok);
} else if (!strcasecmp(c->argv[1]->ptr,"getname") && c->argc == 2) { } else if (!strcasecmp(c->argv[1]->ptr,"getname") && c->argc == 2) {
/* CLIENT GETNAME */
if (c->name) if (c->name)
addReplyBulk(c,c->name); addReplyBulk(c,c->name);
else else
addReplyNull(c); addReplyNull(c);
} else if (!strcasecmp(c->argv[1]->ptr,"pause") && c->argc == 3) { } else if (!strcasecmp(c->argv[1]->ptr,"pause") && c->argc == 3) {
/* CLIENT PAUSE */
long long duration; long long duration;
if (getTimeoutFromObjectOrReply(c,c->argv[2],&duration,UNIT_MILLISECONDS) if (getTimeoutFromObjectOrReply(c,c->argv[2],&duration,
!= C_OK) return; UNIT_MILLISECONDS) != C_OK) return;
pauseClients(duration); pauseClients(duration);
addReply(c,shared.ok); 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 { } else {
addReplyErrorFormat(c, "Unknown subcommand or wrong number of arguments for '%s'. Try CLIENT HELP", (char*)c->argv[1]->ptr); addReplyErrorFormat(c, "Unknown subcommand or wrong number of arguments for '%s'. Try CLIENT HELP", (char*)c->argv[1]->ptr);
} }