X-Git-Url: https://git.saurik.com/redis.git/blobdiff_plain/8b7c3455b964d634453cfe7acdb833db10a2fed5..dfc25454701638d39bc75fbc3f9c55619b503bd0:/src/networking.c?ds=sidebyside diff --git a/src/networking.c b/src/networking.c index e92f680c..40aad836 100644 --- a/src/networking.c +++ b/src/networking.c @@ -3,6 +3,14 @@ static void setProtocolError(redisClient *c, int pos); +/* To evaluate the output buffer size of a client we need to get size of + * allocated objects, however we can't used zmalloc_size() directly on sds + * strings because of the trick they use to work (the header is before the + * returned pointer), so we use this helper function. */ +size_t zmalloc_size_sds(sds s) { + return zmalloc_size(s-sizeof(struct sdshdr)); +} + void *dupClientReplyValue(void *o) { incrRefCount((robj*)o); return o; @@ -137,6 +145,7 @@ void _addReplyObjectToList(redisClient *c, robj *o) { if (listLength(c->reply) == 0) { incrRefCount(o); listAddNodeTail(c->reply,o); + c->reply_bytes += zmalloc_size_sds(o->ptr); } else { tail = listNodeValue(listLast(c->reply)); @@ -144,14 +153,16 @@ void _addReplyObjectToList(redisClient *c, robj *o) { if (tail->ptr != NULL && sdslen(tail->ptr)+sdslen(o->ptr) <= REDIS_REPLY_CHUNK_BYTES) { + c->reply_bytes -= zmalloc_size_sds(tail->ptr); tail = dupLastObjectIfNeeded(c->reply); tail->ptr = sdscatlen(tail->ptr,o->ptr,sdslen(o->ptr)); + c->reply_bytes += zmalloc_size_sds(tail->ptr); } else { incrRefCount(o); listAddNodeTail(c->reply,o); + c->reply_bytes += zmalloc_size_sds(o->ptr); } } - c->reply_bytes += sdslen(o->ptr); asyncCloseClientOnOutputBufferLimitReached(c); } @@ -165,9 +176,9 @@ void _addReplySdsToList(redisClient *c, sds s) { return; } - c->reply_bytes += sdslen(s); if (listLength(c->reply) == 0) { listAddNodeTail(c->reply,createObject(REDIS_STRING,s)); + c->reply_bytes += zmalloc_size_sds(s); } else { tail = listNodeValue(listLast(c->reply)); @@ -175,11 +186,14 @@ void _addReplySdsToList(redisClient *c, sds s) { if (tail->ptr != NULL && sdslen(tail->ptr)+sdslen(s) <= REDIS_REPLY_CHUNK_BYTES) { + c->reply_bytes -= zmalloc_size_sds(tail->ptr); tail = dupLastObjectIfNeeded(c->reply); tail->ptr = sdscatlen(tail->ptr,s,sdslen(s)); + c->reply_bytes += zmalloc_size_sds(tail->ptr); sdsfree(s); } else { listAddNodeTail(c->reply,createObject(REDIS_STRING,s)); + c->reply_bytes += zmalloc_size_sds(s); } } asyncCloseClientOnOutputBufferLimitReached(c); @@ -191,7 +205,10 @@ void _addReplyStringToList(redisClient *c, char *s, size_t len) { if (c->flags & REDIS_CLOSE_AFTER_REPLY) return; if (listLength(c->reply) == 0) { - listAddNodeTail(c->reply,createStringObject(s,len)); + robj *o = createStringObject(s,len); + + listAddNodeTail(c->reply,o); + c->reply_bytes += zmalloc_size_sds(o->ptr); } else { tail = listNodeValue(listLast(c->reply)); @@ -199,13 +216,17 @@ void _addReplyStringToList(redisClient *c, char *s, size_t len) { if (tail->ptr != NULL && sdslen(tail->ptr)+len <= REDIS_REPLY_CHUNK_BYTES) { + c->reply_bytes -= zmalloc_size_sds(tail->ptr); tail = dupLastObjectIfNeeded(c->reply); tail->ptr = sdscatlen(tail->ptr,s,len); + c->reply_bytes += zmalloc_size_sds(tail->ptr); } else { - listAddNodeTail(c->reply,createStringObject(s,len)); + robj *o = createStringObject(s,len); + + listAddNodeTail(c->reply,o); + c->reply_bytes += zmalloc_size_sds(o->ptr); } } - c->reply_bytes += len; asyncCloseClientOnOutputBufferLimitReached(c); } @@ -336,7 +357,7 @@ void setDeferredMultiBulkLength(redisClient *c, void *node, long length) { len = listNodeValue(ln); len->ptr = sdscatprintf(sdsempty(),"*%ld\r\n",length); - c->reply_bytes += sdslen(len->ptr); + c->reply_bytes += zmalloc_size_sds(len->ptr); if (ln->next != NULL) { next = listNodeValue(ln->next); @@ -638,6 +659,7 @@ void freeClientsInAsyncFreeQueue(void) { void sendReplyToClient(aeEventLoop *el, int fd, void *privdata, int mask) { redisClient *c = privdata; int nwritten = 0, totwritten = 0, objlen; + size_t objmem; robj *o; REDIS_NOTUSED(el); REDIS_NOTUSED(mask); @@ -663,6 +685,7 @@ void sendReplyToClient(aeEventLoop *el, int fd, void *privdata, int mask) { } else { o = listNodeValue(listFirst(c->reply)); objlen = sdslen(o->ptr); + objmem = zmalloc_size_sds(o->ptr); if (objlen == 0) { listDelNode(c->reply,listFirst(c->reply)); @@ -683,7 +706,7 @@ void sendReplyToClient(aeEventLoop *el, int fd, void *privdata, int mask) { if (c->sentlen == objlen) { listDelNode(c->reply,listFirst(c->reply)); c->sentlen = 0; - c->reply_bytes -= objlen; + c->reply_bytes -= objmem; } } /* Note that we avoid to send more than REDIS_MAX_WRITE_PER_EVENT @@ -1064,11 +1087,7 @@ sds getClientInfoString(redisClient *client) { time_t now = time(NULL); int emask; - if (anetPeerToString(client->fd,ip,&port) == -1) { - ip[0] = '?'; - ip[1] = '\0'; - port = 0; - } + anetPeerToString(client->fd,ip,&port); p = flags; if (client->flags & REDIS_SLAVE) { if (client->flags & REDIS_MONITOR) @@ -1222,7 +1241,7 @@ void rewriteClientCommandArgument(redisClient *c, int i, robj *newval) { * the caller wishes. The main usage of this function currently is * enforcing the client output length limits. */ unsigned long getClientOutputBufferMemoryUsage(redisClient *c) { - unsigned long list_item_size = sizeof(listNode); + unsigned long list_item_size = sizeof(listNode)+sizeof(robj); return c->reply_bytes + (list_item_size*listLength(c->reply)); } @@ -1306,7 +1325,7 @@ int checkClientOutputBufferLimits(redisClient *c) { * called from contexts where the client can't be freed safely, i.e. from the * lower level functions pushing data inside the client output buffers. */ void asyncCloseClientOnOutputBufferLimitReached(redisClient *c) { - if (c->flags & REDIS_CLOSE_ASAP) return; + if (c->reply_bytes == 0 || c->flags & REDIS_CLOSE_ASAP) return; if (checkClientOutputBufferLimits(c)) { sds client = getClientInfoString(c);