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Wrapper for adding unknown multi bulk length to reply list

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This commit is contained in:
Pieter Noordhuis
2010-08-30 16:02:06 +02:00
parent 834ef78e27
commit b301c1fc2b
7 changed files with 47 additions and 28 deletions
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28
src/networking.c
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@ -145,6 +145,34 @@ void addReplyString(redisClient *c, char *s, size_t len) {
}
}
/* Adds an empty object to the reply list that will contain the multi bulk
* length, which is not known when this function is called. */
void *addDeferredMultiBulkLength(redisClient *c) {
if (_ensureFileEvent(c) != REDIS_OK) return NULL;
_addReplyObjectToList(c,createObject(REDIS_STRING,NULL));
return listLast(c->reply);
}
/* Populate the length object and try glueing it to the next chunk. */
void setDeferredMultiBulkLength(redisClient *c, void *node, long length) {
listNode *ln = (listNode*)node;
robj *len, *next;
/* Abort when *node is NULL (see addDeferredMultiBulkLength). */
if (node == NULL) return;
len = listNodeValue(ln);
len->ptr = sdscatprintf(sdsempty(),"*%ld\r\n",length);
if (ln->next != NULL) {
next = listNodeValue(ln->next);
/* Only glue when the next node is a reply chunk. */
if (next->type == REDIS_REPLY_NODE) {
len->ptr = sdscatlen(len->ptr,next->ptr,sdslen(next->ptr));
listDelNode(c->reply,ln->next);
}
}
}
void addReplyDouble(redisClient *c, double d) {
char dbuf[128], sbuf[128];
int dlen, slen;