[zeromq-dev] How to use ZeroMQ context with zauth?

Check Peck comptechgeeky at gmail.com
Tue Dec 16 01:30:09 CET 2014


Thanks a lot. Yes it worked after that change. Can you explain little bit
what does that line do and what it means in general?

On Mon, Dec 15, 2014 at 4:26 PM, KIU Shueng Chuan <nixchuan at gmail.com>
wrote:
>
> zctx_t *ctx_ptr =
> zctx_shadow_zmq_ctx ((void *)context);
>
> should do what you want.
> On 16 Dec 2014 06:29, "Check Peck" <comptechgeeky at gmail.com> wrote:
>
>> I need to use ZeroMQ context from C++ binding to C way of ZeroMQ context
>> so when I do it like this, I get a Segmentation fault
>>
>>     zctx_t* ctx_ptr = static_cast<zctx_t*>((void*)context);
>>     m_auth = zauth_new (ctx_ptr);
>>
>> I am using Strawhouse security pattern by following this link -
>> http://hintjens.com/blog:49
>>
>>
>> On Mon, Dec 15, 2014 at 1:20 PM, Check Peck <comptechgeeky at gmail.com>
>> wrote:
>>>
>>> I am using C++ bindings for ZeroMQ and I have declared context as -
>>>
>>>     zmq::context_t&     context
>>>     zauth_t             *m_auth;
>>>
>>> Now I am trying to use Strawhouse security pattern in my application and
>>> for which I need to czmq which is a C binding not C++ binding.
>>>
>>> Now when I try to initialize zauth like below, it always fail during
>>> compilation and I am not sure what's wrong?
>>>
>>>     m_auth = zauth_new (*context);
>>>
>>> Below is the compilation error -
>>>
>>> In file included from
>>> /usr/local/include/boost/detail/container_fwd.hpp:98:0,
>>>                  from
>>> /usr/local/include/boost/functional/hash/extensions.hpp:17,
>>>                  from
>>> /usr/local/include/boost/functional/hash/hash.hpp:529,
>>>                  from /usr/local/include/boost/functional/hash.hpp:6,
>>>                  from
>>> /usr/local/include/boost/regex/v4/basic_regex.hpp:23,
>>>                  from /usr/local/include/boost/regex/v4/regex.hpp:67,
>>>                  from /usr/local/include/boost/regex.hpp:31,
>>>                  from /home/david/ZeroMQTester/test_queue.cpp:7:
>>> /usr/include/c++/4.7/complex:379:5: note: template<class _Tp>
>>> std::complex<_Tp> std::operator*(const std::complex<_Tp>&, const
>>> std::complex<_Tp>&)
>>> /usr/include/c++/4.7/complex:379:5: note:   template argument
>>> deduction/substitution failed:
>>> /home/david/ZeroMQTester/test_queue.cpp:126:26: note:   âzmq::context_tâ
>>> is not derived from âconst std::complex<_Tp>â
>>>
>>>
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