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sdsIncrLen() / sdsMakeRoomFor() used to avoid copying to intermediate buffer while reading the client query.

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This commit is contained in:
antirez 2011-11-02 16:52:45 +01:00
parent a54806ac6a
commit b8d743e181
1 changed files with 5 additions and 3 deletions
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8
src/networking.c
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@ -833,12 +833,14 @@ void processInputBuffer(redisClient *c) {
void readQueryFromClient(aeEventLoop *el, int fd, void *privdata, int mask) {
redisClient *c = (redisClient*) privdata;
char buf[REDIS_IOBUF_LEN];
int nread;
size_t qblen;
REDIS_NOTUSED(el);
REDIS_NOTUSED(mask);
nread = read(fd, buf, REDIS_IOBUF_LEN);
qblen = sdslen(c->querybuf);
c->querybuf = sdsMakeRoomFor(c->querybuf, REDIS_IOBUF_LEN);
nread = read(fd, c->querybuf+qblen, REDIS_IOBUF_LEN);
if (nread == -1) {
if (errno == EAGAIN) {
nread = 0;
@ -853,7 +855,7 @@ void readQueryFromClient(aeEventLoop *el, int fd, void *privdata, int mask) {
return;
}
if (nread) {
c->querybuf = sdscatlen(c->querybuf,buf,nread);
sdsIncrLen(c->querybuf,nread);
c->lastinteraction = time(NULL);
} else {
return;