Re: [Boost-users] Problems with boost::asio::local::stream_protocol::iostream under Boost 1.36.0

Subject: Re: [Boost-users] Problems with boost::asio::local::stream_protocol::iostream under Boost 1.36.0
From: Alex Adranghi (mail_at_[hidden])
Date: 2008-09-13 06:33:11

Hi,

I also had the same error, and as a result switched to using the
underlying api. According to the references there is no implementation
for resolver query for local sockets. I didnt trawl through the source
to check though. Also where did you find out what to pass to the
stream_protocol's constructor?

 Jason Bertschi wrote:
> I'm trying to use asio::local::stream_protocol::iostream to connect to a
> server (using Boost library version 1.36.0).  The code looks something
> like this:
> 
> boost::asio::local::stream_protocol::iostream
> mgmtStream("/tmp/pipes/mgmtsock");
> if (!mgmtStream) throw std::exception();
> // Send cmd to mgmt
> mgmtStream << cmd << std::flush;
> 
> 
> I get a compilation error on the line creating mgmtStream.  The
> interesting part is this:
> no type named 'resolver_query' in 'class
> boost::asio::local::stream_protocol'
> 
> I tried breaking the creation into two steps (create
> local::stream_protocol::endpoint with the name of the socket then
> passing the endpoint into the iostream constructor), but the result was
> about the same (the failure occurred on the line creating the iostream,
> not the line creating the endpoint).
> 
> The problem seems to be that basic_socket_streambuf<stream_protocol>
> requires the definition of type resolver_query (within stream_protocol
> in this case).  It seems that ip::tcp::iostream declares it to be of
> type ip::basic_resolver_query<tcp>; I saw no obvious equivalent in the
> local namespace, and my attempt to add 'typedef
> ip::basic_resolver_query<stream_protocol> resolver_query;' to
> stream_protocol of course did nothing helpful (just added a lot more
> compilation errors).  Frankly, I'm not sure how
> stream_protocol::iostream could possibly compile without this definition
> somewhere...
> 
> Any ideas?
> 
> Below is the full output from g++ (in case there's something helpful):
> export_Darwin_i386/include/boost/asio/basic_socket_streambuf.hpp: In
> instantiation of
> 'boost::asio::basic_socket_streambuf<boost::asio::local::stream_protocol,
> boost::asio::stream_socket_service<boost::asio::local::stream_protocol> >':
> export_Darwin_i386/include/boost/utility/base_from_member.hpp:69:  
> instantiated from
> 'boost::base_from_member<boost::asio::basic_socket_streambuf<boost::asio::local::stream_protocol,
> boost::asio::stream_socket_service<boost::asio::local::stream_protocol>
>>, 0>'
> export_Darwin_i386/include/boost/asio/basic_socket_iostream.hpp:86:  
> instantiated from
> 'boost::asio::basic_socket_iostream<boost::asio::local::stream_protocol,
> boost::asio::stream_socket_service<boost::asio::local::stream_protocol> >'
> build_Darwin_i386/confdb/ObjectManager.cc:461:   instantiated from here
> export_Darwin_i386/include/boost/asio/basic_socket_streambuf.hpp:252:
> error: no type named 'resolver_query' in 'class
> boost::asio::local::stream_protocol'
> export_Darwin_i386/include/boost/asio/basic_socket_streambuf.hpp: In
> member function 'boost::asio::basic_socket_streambuf<Protocol,
> StreamSocketService>* boost::asio::basic_socket_streambuf<Protocol,
> StreamSocketService>::connect(T0) [with T0 = const char*, Protocol =
> boost::asio::local::stream_protocol, StreamSocketService =
> boost::asio::stream_socket_service<boost::asio::local::stream_protocol>]':
> export_Darwin_i386/include/boost/asio/basic_socket_iostream.hpp:106:  
> instantiated from 'boost::asio::basic_socket_iostream<Protocol,
> StreamSocketService>::basic_socket_iostream(T0) [with T0 = const char*,
> Protocol = boost::asio::local::stream_protocol, StreamSocketService =
> boost::asio::stream_socket_service<boost::asio::local::stream_protocol>]'
> build_Darwin_i386/confdb/ObjectManager.cc:461:   instantiated from here
> export_Darwin_i386/include/boost/asio/basic_socket_streambuf.hpp:131:
> error: no type named 'resolver_query' in 'class
> boost::asio::local::stream_protocol'
> export_Darwin_i386/include/boost/asio/basic_socket_streambuf.hpp:131:
> error: no type named 'resolver_query' in 'class
> boost::asio::local::stream_protocol'
> export_Darwin_i386/include/boost/asio/basic_socket_streambuf.hpp:131:
> error: no type named 'resolver_query' in 'class
> boost::asio::local::stream_protocol'
> export_Darwin_i386/include/boost/asio/basic_socket_streambuf.hpp:131:
> error: 'resolve_and_connect' was not declared in this scope
> 
> 
> Thanks,
> Jason Bertschi
> jbertschi_at_[hidden]