Function RM_DictSetC

app/redis-6.2.6/src/module.c:6687–6690

Store the specified key into the dictionary, setting its value to the * pointer 'ptr'. If the key was added with success, since it did not * already exist, REDISMODULE_OK is returned. Otherwise if the key already * exists the function returns REDISMODULE_ERR. */

 * already exist, REDISMODULE_OK is returned. Otherwise if the key already
 * exists the function returns REDISMODULE_ERR. */
int RM_DictSetC(RedisModuleDict *d, void *key, size_t keylen, void *ptr) {
    int retval = raxTryInsert(d->rax,key,keylen,ptr,NULL);
    return (retval == 1) ? REDISMODULE_OK : REDISMODULE_ERR;
}

/* Like RedisModule_DictSetC() but will replace the key with the new
 * value if the key already exists. */