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From 李赫元 <liheyuan...@gmail.com>
Subject Re: How to know if connection to zk is successful in C API.
Date Mon, 14 May 2012 11:44:12 GMT
Thanks, I have found that a ZOO_SESSION_EVENT event with state
ZOO_CONNECTED_STATE will be recv after session is built.


2012/5/14 Martin Kou <bitanarch@gmail.com>:
> The connection API is asynchronous, you'll need to look for the session
> state changes in the watcher_callback.
>
> Best Regards,
> Martin Kou
>
> On Mon, May 14, 2012 at 2:04 AM, 李赫元 <liheyuan.bj@gmail.com> wrote:
>
>> Hi All,
>>
>> I encounter a problem in zookeeper 3.4.1 with C API.
>> The following is always show "success" even the zkserver is actually down.
>>
>>    char* zk_server = "127.0.0.1:2181";
>>    zhandle_t* zh = zookeeper_init(zk_server, watcher_callback, 3000,
>> 0, NULL, 0);
>>    if(!zh)
>>    {
>>        print_error(errno);
>>        return -1;
>>    }else
>>    {
>>        ::std::cout << "success" << ::std::endl;
>>    }
>>
>> Even if the zookeeper is shutdown, the zh handle is still not NULL.
>> So, I don't know how to judge if connection to zookeeper is succful in C
>> API.
>>
>> Thanks all.
>>
>> Heyuan Li
>>

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