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Assign an unique non-repeating ID to each new client.

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This will be used by CLIENT KILL and is also a good way to ensure a
given client is still the same across CLIENT LIST calls.

The output of CLIENT LIST was modified to include the new ID, but this
change is considered to be backward compatible as the API does not imply
you can do positional parsing, since each filed as a different name.
This commit is contained in:
antirez 2014-06-16 14:22:55 +02:00
parent b6a26b52bf
commit cad13223f0
3 changed files with 7 additions and 2 deletions
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4
src/networking.c
View File

@ -72,6 +72,7 @@ redisClient *createClient(int fd) {
}
selectDb(c,0);
c->id = server.next_client_id++;
c->fd = fd;
c->name = NULL;
c->bufpos = 0;
@ -1275,7 +1276,8 @@ sds catClientInfoString(sds s, redisClient *client) {
if (emask & AE_WRITABLE) *p++ = 'w';
*p = '\0';
return sdscatfmt(s,
"addr=%s fd=%i name=%s age=%I idle=%I flags=%s db=%i sub=%i psub=%i multi=%i qbuf=%U qbuf-free=%U obl=%U oll=%U omem=%U events=%s cmd=%s",
"id=%U addr=%s fd=%i name=%s age=%I idle=%I flags=%s db=%i sub=%i psub=%i multi=%i qbuf=%U qbuf-free=%U obl=%U oll=%U omem=%U events=%s cmd=%s",
(unsigned long long) client->id,
getClientPeerId(client),
client->fd,
client->name ? (char*)client->name->ptr : "",

1
src/redis.c
View File

@ -1366,6 +1366,7 @@ void initServerConfig() {
server.lua_time_limit = REDIS_LUA_TIME_LIMIT;
server.lua_client = NULL;
server.lua_timedout = 0;
server.next_client_id = 1; /* Client IDs, start from 1 .*/
server.loading_process_events_interval_bytes = (1024*1024*2);
updateLRUClock();

4
src/redis.h
View File

@ -451,6 +451,7 @@ typedef struct readyList {
/* With multiplexing we need to take per-client state.
* Clients are taken in a liked list. */
typedef struct redisClient {
uint64_t id; /* Client incremental unique ID. */
int fd;
redisDb *db;
int dictid;
@ -602,7 +603,8 @@ struct redisServer {
list *clients_to_close; /* Clients to close asynchronously */
list *slaves, *monitors; /* List of slaves and MONITORs */
redisClient *current_client; /* Current client, only used on crash report */
char neterr[ANET_ERR_LEN]; /* Error buffer for anet.c */
char neterr[ANET_ERR_LEN]; /* Error buffer for anet.c */
uint64_t next_client_id; /* Next client unique ID. Incremental. */
/* RDB / AOF loading information */
int loading; /* We are loading data from disk if true */
off_t loading_total_bytes;