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Client side caching: don't hash the key if not needed.

This commit is contained in:
antirez 2019-07-22 12:10:51 +02:00
parent e00442eb13
commit f850201c64
1 changed files with 5 additions and 2 deletions
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7
src/tracking.c
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@ -156,12 +156,15 @@ void sendTrackingMessage(client *c, long long hash) {
/* This function is called from signalModifiedKey() or other places in Redis /* This function is called from signalModifiedKey() or other places in Redis
* when a key changes value. In the context of keys tracking, our task here is * when a key changes value. In the context of keys tracking, our task here is
* to send a notification to every client that may have keys about such . */ * to send a notification to every client that may have keys about such caching
* slot. */
void trackingInvalidateKey(robj *keyobj) { void trackingInvalidateKey(robj *keyobj) {
if (TrackingTable == NULL || TrackingTableUsedSlots == 0) return;
sds sdskey = keyobj->ptr; sds sdskey = keyobj->ptr;
uint64_t hash = crc64(0, uint64_t hash = crc64(0,
(unsigned char*)sdskey,sdslen(sdskey))&(TRACKING_TABLE_SIZE-1); (unsigned char*)sdskey,sdslen(sdskey))&(TRACKING_TABLE_SIZE-1);
if (TrackingTable == NULL || TrackingTable[hash] == NULL) return; if (TrackingTable[hash] == NULL) return;
raxIterator ri; raxIterator ri;
raxStart(&ri,TrackingTable[hash]); raxStart(&ri,TrackingTable[hash]);