9b83ddc2d9
redisAsyncInitialize() can return NULL, but then we pass the return value from redisAsyncInitialize() into something dereferencing the return value, which can cause crashies.
681 lines
22 KiB
C
681 lines
22 KiB
C
/*
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* Copyright (c) 2009-2011, Salvatore Sanfilippo <antirez at gmail dot com>
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* Copyright (c) 2010-2011, Pieter Noordhuis <pcnoordhuis at gmail dot com>
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of Redis nor the names of its contributors may be used
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* to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "fmacros.h"
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#include <stdlib.h>
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#include <string.h>
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#include <strings.h>
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#include <assert.h>
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#include <ctype.h>
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#include <errno.h>
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#include "async.h"
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#include "net.h"
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#include "dict.c"
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#include "sds.h"
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#define _EL_ADD_READ(ctx) do { \
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if ((ctx)->ev.addRead) (ctx)->ev.addRead((ctx)->ev.data); \
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} while(0)
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#define _EL_DEL_READ(ctx) do { \
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if ((ctx)->ev.delRead) (ctx)->ev.delRead((ctx)->ev.data); \
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} while(0)
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#define _EL_ADD_WRITE(ctx) do { \
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if ((ctx)->ev.addWrite) (ctx)->ev.addWrite((ctx)->ev.data); \
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} while(0)
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#define _EL_DEL_WRITE(ctx) do { \
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if ((ctx)->ev.delWrite) (ctx)->ev.delWrite((ctx)->ev.data); \
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} while(0)
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#define _EL_CLEANUP(ctx) do { \
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if ((ctx)->ev.cleanup) (ctx)->ev.cleanup((ctx)->ev.data); \
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} while(0);
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/* Forward declaration of function in hiredis.c */
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int __redisAppendCommand(redisContext *c, const char *cmd, size_t len);
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/* Functions managing dictionary of callbacks for pub/sub. */
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static unsigned int callbackHash(const void *key) {
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return dictGenHashFunction((const unsigned char *)key,
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sdslen((const sds)key));
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}
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static void *callbackValDup(void *privdata, const void *src) {
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((void) privdata);
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redisCallback *dup = malloc(sizeof(*dup));
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memcpy(dup,src,sizeof(*dup));
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return dup;
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}
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static int callbackKeyCompare(void *privdata, const void *key1, const void *key2) {
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int l1, l2;
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((void) privdata);
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l1 = sdslen((const sds)key1);
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l2 = sdslen((const sds)key2);
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if (l1 != l2) return 0;
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return memcmp(key1,key2,l1) == 0;
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}
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static void callbackKeyDestructor(void *privdata, void *key) {
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((void) privdata);
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sdsfree((sds)key);
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}
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static void callbackValDestructor(void *privdata, void *val) {
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((void) privdata);
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free(val);
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}
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static dictType callbackDict = {
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callbackHash,
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NULL,
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callbackValDup,
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callbackKeyCompare,
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callbackKeyDestructor,
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callbackValDestructor
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};
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static redisAsyncContext *redisAsyncInitialize(redisContext *c) {
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redisAsyncContext *ac;
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ac = realloc(c,sizeof(redisAsyncContext));
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if (ac == NULL)
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return NULL;
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c = &(ac->c);
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/* The regular connect functions will always set the flag REDIS_CONNECTED.
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* For the async API, we want to wait until the first write event is
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* received up before setting this flag, so reset it here. */
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c->flags &= ~REDIS_CONNECTED;
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ac->err = 0;
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ac->errstr = NULL;
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ac->data = NULL;
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ac->ev.data = NULL;
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ac->ev.addRead = NULL;
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ac->ev.delRead = NULL;
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ac->ev.addWrite = NULL;
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ac->ev.delWrite = NULL;
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ac->ev.cleanup = NULL;
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ac->onConnect = NULL;
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ac->onDisconnect = NULL;
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ac->replies.head = NULL;
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ac->replies.tail = NULL;
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ac->sub.invalid.head = NULL;
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ac->sub.invalid.tail = NULL;
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ac->sub.channels = dictCreate(&callbackDict,NULL);
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ac->sub.patterns = dictCreate(&callbackDict,NULL);
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return ac;
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}
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/* We want the error field to be accessible directly instead of requiring
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* an indirection to the redisContext struct. */
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static void __redisAsyncCopyError(redisAsyncContext *ac) {
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if (!ac)
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return;
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redisContext *c = &(ac->c);
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ac->err = c->err;
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ac->errstr = c->errstr;
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}
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redisAsyncContext *redisAsyncConnect(const char *ip, int port) {
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redisContext *c;
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redisAsyncContext *ac;
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c = redisConnectNonBlock(ip,port);
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if (c == NULL)
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return NULL;
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ac = redisAsyncInitialize(c);
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if (ac == NULL) {
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redisFree(c);
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return NULL;
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}
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__redisAsyncCopyError(ac);
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return ac;
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}
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redisAsyncContext *redisAsyncConnectBind(const char *ip, int port,
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const char *source_addr) {
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redisContext *c = redisConnectBindNonBlock(ip,port,source_addr);
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redisAsyncContext *ac = redisAsyncInitialize(c);
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__redisAsyncCopyError(ac);
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return ac;
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}
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redisAsyncContext *redisAsyncConnectBindWithReuse(const char *ip, int port,
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const char *source_addr) {
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redisContext *c = redisConnectBindNonBlockWithReuse(ip,port,source_addr);
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redisAsyncContext *ac = redisAsyncInitialize(c);
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__redisAsyncCopyError(ac);
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return ac;
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}
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redisAsyncContext *redisAsyncConnectUnix(const char *path) {
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redisContext *c;
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redisAsyncContext *ac;
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c = redisConnectUnixNonBlock(path);
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if (c == NULL)
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return NULL;
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ac = redisAsyncInitialize(c);
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if (ac == NULL) {
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redisFree(c);
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return NULL;
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}
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__redisAsyncCopyError(ac);
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return ac;
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}
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int redisAsyncSetConnectCallback(redisAsyncContext *ac, redisConnectCallback *fn) {
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if (ac->onConnect == NULL) {
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ac->onConnect = fn;
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/* The common way to detect an established connection is to wait for
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* the first write event to be fired. This assumes the related event
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* library functions are already set. */
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_EL_ADD_WRITE(ac);
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return REDIS_OK;
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}
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return REDIS_ERR;
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}
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int redisAsyncSetDisconnectCallback(redisAsyncContext *ac, redisDisconnectCallback *fn) {
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if (ac->onDisconnect == NULL) {
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ac->onDisconnect = fn;
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return REDIS_OK;
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}
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return REDIS_ERR;
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}
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/* Helper functions to push/shift callbacks */
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static int __redisPushCallback(redisCallbackList *list, redisCallback *source) {
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redisCallback *cb;
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/* Copy callback from stack to heap */
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cb = malloc(sizeof(*cb));
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if (cb == NULL)
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return REDIS_ERR_OOM;
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if (source != NULL) {
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memcpy(cb,source,sizeof(*cb));
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cb->next = NULL;
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}
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/* Store callback in list */
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if (list->head == NULL)
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list->head = cb;
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if (list->tail != NULL)
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list->tail->next = cb;
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list->tail = cb;
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return REDIS_OK;
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}
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static int __redisShiftCallback(redisCallbackList *list, redisCallback *target) {
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redisCallback *cb = list->head;
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if (cb != NULL) {
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list->head = cb->next;
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if (cb == list->tail)
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list->tail = NULL;
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/* Copy callback from heap to stack */
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if (target != NULL)
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memcpy(target,cb,sizeof(*cb));
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free(cb);
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return REDIS_OK;
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}
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return REDIS_ERR;
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}
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static void __redisRunCallback(redisAsyncContext *ac, redisCallback *cb, redisReply *reply) {
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redisContext *c = &(ac->c);
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if (cb->fn != NULL) {
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c->flags |= REDIS_IN_CALLBACK;
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cb->fn(ac,reply,cb->privdata);
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c->flags &= ~REDIS_IN_CALLBACK;
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}
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}
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/* Helper function to free the context. */
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static void __redisAsyncFree(redisAsyncContext *ac) {
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redisContext *c = &(ac->c);
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redisCallback cb;
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dictIterator *it;
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dictEntry *de;
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/* Execute pending callbacks with NULL reply. */
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while (__redisShiftCallback(&ac->replies,&cb) == REDIS_OK)
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__redisRunCallback(ac,&cb,NULL);
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/* Execute callbacks for invalid commands */
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while (__redisShiftCallback(&ac->sub.invalid,&cb) == REDIS_OK)
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__redisRunCallback(ac,&cb,NULL);
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/* Run subscription callbacks callbacks with NULL reply */
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it = dictGetIterator(ac->sub.channels);
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while ((de = dictNext(it)) != NULL)
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__redisRunCallback(ac,dictGetEntryVal(de),NULL);
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dictReleaseIterator(it);
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dictRelease(ac->sub.channels);
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it = dictGetIterator(ac->sub.patterns);
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while ((de = dictNext(it)) != NULL)
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__redisRunCallback(ac,dictGetEntryVal(de),NULL);
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dictReleaseIterator(it);
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dictRelease(ac->sub.patterns);
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/* Signal event lib to clean up */
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_EL_CLEANUP(ac);
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/* Execute disconnect callback. When redisAsyncFree() initiated destroying
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* this context, the status will always be REDIS_OK. */
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if (ac->onDisconnect && (c->flags & REDIS_CONNECTED)) {
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if (c->flags & REDIS_FREEING) {
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ac->onDisconnect(ac,REDIS_OK);
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} else {
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ac->onDisconnect(ac,(ac->err == 0) ? REDIS_OK : REDIS_ERR);
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}
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}
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/* Cleanup self */
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redisFree(c);
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}
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/* Free the async context. When this function is called from a callback,
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* control needs to be returned to redisProcessCallbacks() before actual
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* free'ing. To do so, a flag is set on the context which is picked up by
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* redisProcessCallbacks(). Otherwise, the context is immediately free'd. */
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void redisAsyncFree(redisAsyncContext *ac) {
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redisContext *c = &(ac->c);
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c->flags |= REDIS_FREEING;
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if (!(c->flags & REDIS_IN_CALLBACK))
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__redisAsyncFree(ac);
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}
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/* Helper function to make the disconnect happen and clean up. */
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static void __redisAsyncDisconnect(redisAsyncContext *ac) {
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redisContext *c = &(ac->c);
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/* Make sure error is accessible if there is any */
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__redisAsyncCopyError(ac);
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if (ac->err == 0) {
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/* For clean disconnects, there should be no pending callbacks. */
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assert(__redisShiftCallback(&ac->replies,NULL) == REDIS_ERR);
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} else {
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/* Disconnection is caused by an error, make sure that pending
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* callbacks cannot call new commands. */
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c->flags |= REDIS_DISCONNECTING;
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}
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/* For non-clean disconnects, __redisAsyncFree() will execute pending
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* callbacks with a NULL-reply. */
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__redisAsyncFree(ac);
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}
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/* Tries to do a clean disconnect from Redis, meaning it stops new commands
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* from being issued, but tries to flush the output buffer and execute
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* callbacks for all remaining replies. When this function is called from a
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* callback, there might be more replies and we can safely defer disconnecting
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* to redisProcessCallbacks(). Otherwise, we can only disconnect immediately
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* when there are no pending callbacks. */
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void redisAsyncDisconnect(redisAsyncContext *ac) {
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redisContext *c = &(ac->c);
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c->flags |= REDIS_DISCONNECTING;
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if (!(c->flags & REDIS_IN_CALLBACK) && ac->replies.head == NULL)
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__redisAsyncDisconnect(ac);
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}
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static int __redisGetSubscribeCallback(redisAsyncContext *ac, redisReply *reply, redisCallback *dstcb) {
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redisContext *c = &(ac->c);
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dict *callbacks;
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dictEntry *de;
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int pvariant;
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char *stype;
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sds sname;
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/* Custom reply functions are not supported for pub/sub. This will fail
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* very hard when they are used... */
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if (reply->type == REDIS_REPLY_ARRAY) {
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assert(reply->elements >= 2);
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assert(reply->element[0]->type == REDIS_REPLY_STRING);
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stype = reply->element[0]->str;
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pvariant = (tolower(stype[0]) == 'p') ? 1 : 0;
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if (pvariant)
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callbacks = ac->sub.patterns;
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else
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callbacks = ac->sub.channels;
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/* Locate the right callback */
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assert(reply->element[1]->type == REDIS_REPLY_STRING);
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sname = sdsnewlen(reply->element[1]->str,reply->element[1]->len);
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de = dictFind(callbacks,sname);
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if (de != NULL) {
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memcpy(dstcb,dictGetEntryVal(de),sizeof(*dstcb));
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/* If this is an unsubscribe message, remove it. */
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if (strcasecmp(stype+pvariant,"unsubscribe") == 0) {
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dictDelete(callbacks,sname);
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/* If this was the last unsubscribe message, revert to
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* non-subscribe mode. */
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assert(reply->element[2]->type == REDIS_REPLY_INTEGER);
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if (reply->element[2]->integer == 0)
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c->flags &= ~REDIS_SUBSCRIBED;
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}
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}
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sdsfree(sname);
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} else {
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/* Shift callback for invalid commands. */
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__redisShiftCallback(&ac->sub.invalid,dstcb);
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}
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return REDIS_OK;
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}
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void redisProcessCallbacks(redisAsyncContext *ac) {
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redisContext *c = &(ac->c);
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redisCallback cb = {NULL, NULL, NULL};
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void *reply = NULL;
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int status;
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while((status = redisGetReply(c,&reply)) == REDIS_OK) {
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if (reply == NULL) {
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/* When the connection is being disconnected and there are
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* no more replies, this is the cue to really disconnect. */
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if (c->flags & REDIS_DISCONNECTING && sdslen(c->obuf) == 0) {
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__redisAsyncDisconnect(ac);
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return;
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}
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/* If monitor mode, repush callback */
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if(c->flags & REDIS_MONITORING) {
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__redisPushCallback(&ac->replies,&cb);
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}
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/* When the connection is not being disconnected, simply stop
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* trying to get replies and wait for the next loop tick. */
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break;
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}
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/* Even if the context is subscribed, pending regular callbacks will
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* get a reply before pub/sub messages arrive. */
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if (__redisShiftCallback(&ac->replies,&cb) != REDIS_OK) {
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/*
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* A spontaneous reply in a not-subscribed context can be the error
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* reply that is sent when a new connection exceeds the maximum
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* number of allowed connections on the server side.
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*
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* This is seen as an error instead of a regular reply because the
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* server closes the connection after sending it.
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*
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* To prevent the error from being overwritten by an EOF error the
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* connection is closed here. See issue #43.
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*
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* Another possibility is that the server is loading its dataset.
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* In this case we also want to close the connection, and have the
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* user wait until the server is ready to take our request.
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*/
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if (((redisReply*)reply)->type == REDIS_REPLY_ERROR) {
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c->err = REDIS_ERR_OTHER;
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snprintf(c->errstr,sizeof(c->errstr),"%s",((redisReply*)reply)->str);
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__redisAsyncDisconnect(ac);
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return;
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}
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/* No more regular callbacks and no errors, the context *must* be subscribed or monitoring. */
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assert((c->flags & REDIS_SUBSCRIBED || c->flags & REDIS_MONITORING));
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if(c->flags & REDIS_SUBSCRIBED)
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__redisGetSubscribeCallback(ac,reply,&cb);
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}
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if (cb.fn != NULL) {
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__redisRunCallback(ac,&cb,reply);
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c->reader->fn->freeObject(reply);
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/* Proceed with free'ing when redisAsyncFree() was called. */
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if (c->flags & REDIS_FREEING) {
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__redisAsyncFree(ac);
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return;
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}
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} else {
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/* No callback for this reply. This can either be a NULL callback,
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* or there were no callbacks to begin with. Either way, don't
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* abort with an error, but simply ignore it because the client
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* doesn't know what the server will spit out over the wire. */
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c->reader->fn->freeObject(reply);
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}
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}
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/* Disconnect when there was an error reading the reply */
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if (status != REDIS_OK)
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__redisAsyncDisconnect(ac);
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}
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/* Internal helper function to detect socket status the first time a read or
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* write event fires. When connecting was not succesful, the connect callback
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* is called with a REDIS_ERR status and the context is free'd. */
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static int __redisAsyncHandleConnect(redisAsyncContext *ac) {
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redisContext *c = &(ac->c);
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if (redisCheckSocketError(c) == REDIS_ERR) {
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/* Try again later when connect(2) is still in progress. */
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if (errno == EINPROGRESS)
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return REDIS_OK;
|
|
|
|
if (ac->onConnect) ac->onConnect(ac,REDIS_ERR);
|
|
__redisAsyncDisconnect(ac);
|
|
return REDIS_ERR;
|
|
}
|
|
|
|
/* Mark context as connected. */
|
|
c->flags |= REDIS_CONNECTED;
|
|
if (ac->onConnect) ac->onConnect(ac,REDIS_OK);
|
|
return REDIS_OK;
|
|
}
|
|
|
|
/* This function should be called when the socket is readable.
|
|
* It processes all replies that can be read and executes their callbacks.
|
|
*/
|
|
void redisAsyncHandleRead(redisAsyncContext *ac) {
|
|
redisContext *c = &(ac->c);
|
|
|
|
if (!(c->flags & REDIS_CONNECTED)) {
|
|
/* Abort connect was not successful. */
|
|
if (__redisAsyncHandleConnect(ac) != REDIS_OK)
|
|
return;
|
|
/* Try again later when the context is still not connected. */
|
|
if (!(c->flags & REDIS_CONNECTED))
|
|
return;
|
|
}
|
|
|
|
if (redisBufferRead(c) == REDIS_ERR) {
|
|
__redisAsyncDisconnect(ac);
|
|
} else {
|
|
/* Always re-schedule reads */
|
|
_EL_ADD_READ(ac);
|
|
redisProcessCallbacks(ac);
|
|
}
|
|
}
|
|
|
|
void redisAsyncHandleWrite(redisAsyncContext *ac) {
|
|
redisContext *c = &(ac->c);
|
|
int done = 0;
|
|
|
|
if (!(c->flags & REDIS_CONNECTED)) {
|
|
/* Abort connect was not successful. */
|
|
if (__redisAsyncHandleConnect(ac) != REDIS_OK)
|
|
return;
|
|
/* Try again later when the context is still not connected. */
|
|
if (!(c->flags & REDIS_CONNECTED))
|
|
return;
|
|
}
|
|
|
|
if (redisBufferWrite(c,&done) == REDIS_ERR) {
|
|
__redisAsyncDisconnect(ac);
|
|
} else {
|
|
/* Continue writing when not done, stop writing otherwise */
|
|
if (!done)
|
|
_EL_ADD_WRITE(ac);
|
|
else
|
|
_EL_DEL_WRITE(ac);
|
|
|
|
/* Always schedule reads after writes */
|
|
_EL_ADD_READ(ac);
|
|
}
|
|
}
|
|
|
|
/* Sets a pointer to the first argument and its length starting at p. Returns
|
|
* the number of bytes to skip to get to the following argument. */
|
|
static const char *nextArgument(const char *start, const char **str, size_t *len) {
|
|
const char *p = start;
|
|
if (p[0] != '$') {
|
|
p = strchr(p,'$');
|
|
if (p == NULL) return NULL;
|
|
}
|
|
|
|
*len = (int)strtol(p+1,NULL,10);
|
|
p = strchr(p,'\r');
|
|
assert(p);
|
|
*str = p+2;
|
|
return p+2+(*len)+2;
|
|
}
|
|
|
|
/* Helper function for the redisAsyncCommand* family of functions. Writes a
|
|
* formatted command to the output buffer and registers the provided callback
|
|
* function with the context. */
|
|
static int __redisAsyncCommand(redisAsyncContext *ac, redisCallbackFn *fn, void *privdata, const char *cmd, size_t len) {
|
|
redisContext *c = &(ac->c);
|
|
redisCallback cb;
|
|
int pvariant, hasnext;
|
|
const char *cstr, *astr;
|
|
size_t clen, alen;
|
|
const char *p;
|
|
sds sname;
|
|
int ret;
|
|
|
|
/* Don't accept new commands when the connection is about to be closed. */
|
|
if (c->flags & (REDIS_DISCONNECTING | REDIS_FREEING)) return REDIS_ERR;
|
|
|
|
/* Setup callback */
|
|
cb.fn = fn;
|
|
cb.privdata = privdata;
|
|
|
|
/* Find out which command will be appended. */
|
|
p = nextArgument(cmd,&cstr,&clen);
|
|
assert(p != NULL);
|
|
hasnext = (p[0] == '$');
|
|
pvariant = (tolower(cstr[0]) == 'p') ? 1 : 0;
|
|
cstr += pvariant;
|
|
clen -= pvariant;
|
|
|
|
if (hasnext && strncasecmp(cstr,"subscribe\r\n",11) == 0) {
|
|
c->flags |= REDIS_SUBSCRIBED;
|
|
|
|
/* Add every channel/pattern to the list of subscription callbacks. */
|
|
while ((p = nextArgument(p,&astr,&alen)) != NULL) {
|
|
sname = sdsnewlen(astr,alen);
|
|
if (pvariant)
|
|
ret = dictReplace(ac->sub.patterns,sname,&cb);
|
|
else
|
|
ret = dictReplace(ac->sub.channels,sname,&cb);
|
|
|
|
if (ret == 0) sdsfree(sname);
|
|
}
|
|
} else if (strncasecmp(cstr,"unsubscribe\r\n",13) == 0) {
|
|
/* It is only useful to call (P)UNSUBSCRIBE when the context is
|
|
* subscribed to one or more channels or patterns. */
|
|
if (!(c->flags & REDIS_SUBSCRIBED)) return REDIS_ERR;
|
|
|
|
/* (P)UNSUBSCRIBE does not have its own response: every channel or
|
|
* pattern that is unsubscribed will receive a message. This means we
|
|
* should not append a callback function for this command. */
|
|
} else if(strncasecmp(cstr,"monitor\r\n",9) == 0) {
|
|
/* Set monitor flag and push callback */
|
|
c->flags |= REDIS_MONITORING;
|
|
__redisPushCallback(&ac->replies,&cb);
|
|
} else {
|
|
if (c->flags & REDIS_SUBSCRIBED)
|
|
/* This will likely result in an error reply, but it needs to be
|
|
* received and passed to the callback. */
|
|
__redisPushCallback(&ac->sub.invalid,&cb);
|
|
else
|
|
__redisPushCallback(&ac->replies,&cb);
|
|
}
|
|
|
|
__redisAppendCommand(c,cmd,len);
|
|
|
|
/* Always schedule a write when the write buffer is non-empty */
|
|
_EL_ADD_WRITE(ac);
|
|
|
|
return REDIS_OK;
|
|
}
|
|
|
|
int redisvAsyncCommand(redisAsyncContext *ac, redisCallbackFn *fn, void *privdata, const char *format, va_list ap) {
|
|
char *cmd;
|
|
int len;
|
|
int status;
|
|
len = redisvFormatCommand(&cmd,format,ap);
|
|
status = __redisAsyncCommand(ac,fn,privdata,cmd,len);
|
|
free(cmd);
|
|
return status;
|
|
}
|
|
|
|
int redisAsyncCommand(redisAsyncContext *ac, redisCallbackFn *fn, void *privdata, const char *format, ...) {
|
|
va_list ap;
|
|
int status;
|
|
va_start(ap,format);
|
|
status = redisvAsyncCommand(ac,fn,privdata,format,ap);
|
|
va_end(ap);
|
|
return status;
|
|
}
|
|
|
|
int redisAsyncCommandArgv(redisAsyncContext *ac, redisCallbackFn *fn, void *privdata, int argc, const char **argv, const size_t *argvlen) {
|
|
sds cmd;
|
|
int len;
|
|
int status;
|
|
len = redisFormatSdsCommandArgv(&cmd,argc,argv,argvlen);
|
|
status = __redisAsyncCommand(ac,fn,privdata,cmd,len);
|
|
sdsfree(cmd);
|
|
return status;
|
|
}
|
|
|
|
int redisAsyncFormattedCommand(redisAsyncContext *ac, redisCallbackFn *fn, void *privdata, const char *cmd, size_t len) {
|
|
int status = __redisAsyncCommand(ac,fn,privdata,cmd,len);
|
|
return status;
|
|
}
|