示例#1
0
int redisReaderFeed(redisReader *r, const char *buf, size_t len) {
    sds newbuf;

    /* Return early when this reader is in an erroneous state. */
    if (r->err)
        return REDIS_ERR;

    /* Copy the provided buffer. */
    if (buf != NULL && len >= 1) {
        /* Destroy internal buffer when it is empty and is quite large. */
        if (r->len == 0 && sdsavail(r->buf) > 16*1024) {
            sdsfree(r->buf);
            r->buf = sdsempty();
            r->pos = 0;

            /* r->buf should not be NULL since we just free'd a larger one. */
            assert(r->buf != NULL);
        }

        newbuf = sdscatlen(r->buf,buf,len);
        if (newbuf == NULL) {
            __redisReaderSetErrorOOM(r);
            return REDIS_ERR;
        }

        r->buf = newbuf;
        r->len = sdslen(r->buf);
    }

    return REDIS_OK;
}
示例#2
0
static int processLineItem(redisReader *r) {
    redisReadTask *cur = &(r->rstack[r->ridx]);
    void *obj;
    char *p;
    int len;

    if ((p = readLine(r,&len)) != NULL) {
        if (cur->type == REDIS_REPLY_INTEGER) {
            if (r->fn && r->fn->createInteger)
                obj = r->fn->createInteger(cur,readLongLong(p));
            else
                obj = (void*)REDIS_REPLY_INTEGER;
        } else {
            /* Type will be error or status. */
            if (r->fn && r->fn->createString)
                obj = r->fn->createString(cur,p,len);
            else
                obj = (void*)(size_t)(cur->type);
        }

        if (obj == NULL) {
            __redisReaderSetErrorOOM(r);
            return REDIS_ERR;
        }

        /* Set reply if this is the root object. */
        if (r->ridx == 0) r->reply = obj;
        moveToNextTask(r);
        return REDIS_OK;
    }

    return REDIS_ERR;
}
示例#3
0
文件: hiredis.c 项目: freb/rules
static int processBulkItem(redisReader *r) {
    redisReadTask *cur = &(r->rstack[r->ridx]);
    void *obj = NULL;
    char *p, *s;
#ifdef _WIN32
    long long len;
#else
    long len;
#endif
    unsigned long bytelen;
    int success = 0;

    p = r->buf+r->pos;
    s = seekNewline(p,r->len-r->pos);
    if (s != NULL) {
        p = r->buf+r->pos;
        bytelen = (int)(s-(r->buf+r->pos)+2); /* include \r\n */
        len = readLongLong(p);

        if (len < 0) {
            /* The nil object can always be created. */
            if (r->fn && r->fn->createNil)
                obj = r->fn->createNil(cur);
            else
                obj = (void*)REDIS_REPLY_NIL;
            success = 1;
        } else {
            /* Only continue when the buffer contains the entire bulk item. */
            bytelen += (unsigned long)len+2; /* include \r\n */
            if (r->pos+bytelen <= r->len) {
                if (r->fn && r->fn->createString)
                    obj = r->fn->createString(cur,s+2,(size_t)len);
                else
                    obj = (void*)REDIS_REPLY_STRING;
                success = 1;
            }
        }

        /* Proceed when obj was created. */
        if (success) {
            if (obj == NULL) {
                __redisReaderSetErrorOOM(r);
                return REDIS_ERR;
            }

            r->pos += bytelen;

            /* Set reply if this is the root object. */
            if (r->ridx == 0) r->reply = obj;
            moveToNextTask(r);
            return REDIS_OK;
        }
    }

    return REDIS_ERR;
}
示例#4
0
static int processMultiBulkItem(redisReader *r) {
    redisReadTask *cur = &(r->rstack[r->ridx]);
    void *obj;
    char *p;
    long elements;
    int root = 0;

    /* Set error for nested multi bulks with depth > 1 */
    if (r->ridx == 2) {
        __redisReaderSetError(r,REDIS_ERR_PROTOCOL,
            "No support for nested multi bulk replies with depth > 1");
        return REDIS_ERR;
    }

    if ((p = readLine(r,NULL)) != NULL) {
        elements = readLongLong(p);
        root = (r->ridx == 0);

        if (elements == -1) {
            if (r->fn && r->fn->createNil)
                obj = r->fn->createNil(cur);
            else
                obj = (void*)REDIS_REPLY_NIL;

            if (obj == NULL) {
                __redisReaderSetErrorOOM(r);
                return REDIS_ERR;
            }

            moveToNextTask(r);
        } else {
            if (r->fn && r->fn->createArray)
                obj = r->fn->createArray(cur,elements);
            else
                obj = (void*)REDIS_REPLY_ARRAY;

            if (obj == NULL) {
                __redisReaderSetErrorOOM(r);
                return REDIS_ERR;
            }

            /* Modify task stack when there are more than 0 elements. */
            if (elements > 0) {
                cur->elements = elements;
                cur->obj = obj;
                r->ridx++;
                r->rstack[r->ridx].type = -1;
                r->rstack[r->ridx].elements = -1;
                r->rstack[r->ridx].idx = 0;
                r->rstack[r->ridx].obj = NULL;
                r->rstack[r->ridx].parent = cur;
                r->rstack[r->ridx].privdata = r->privdata;
            } else {
                moveToNextTask(r);
            }
        }

        /* Set reply if this is the root object. */
        if (root) r->reply = obj;
        return REDIS_OK;
    }

    return REDIS_ERR;
}