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DisplayDriverServer : Support IPv4-only environments #1493

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DisplayDriverServer : Support IPv4-only environments #1493

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DisplayDriverServer : Support IPv4-only environments
johnhaddon Sep 26, 2025
0e53aaa
fixup! DisplayDriverServer : Support IPv4-only environments
johnhaddon Sep 26, 2025
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5 changes: 5 additions & 0 deletions Changes
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Original file line number Diff line number Diff line change
@@ -1,6 +1,11 @@
10.6.x.x (relative to 10.6.0.1)
========

Fixes
-----

- DisplayDriverServer : Fixed to support IPv4-only environments.

API
---

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20 changes: 17 additions & 3 deletions src/IECoreImage/DisplayDriverServer.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -189,16 +189,30 @@ class DisplayDriverServer::PrivateData : public RefCounted

void openPort( DisplayDriverServer::Port portNumber )
{
m_endpoint = boost::asio::ip::tcp::endpoint( tcp::v6(), portNumber );
m_acceptor.open( m_endpoint.protocol() );
boost::system::error_code errorCode;
tcp protocol = tcp::v6();
m_acceptor.open( protocol, errorCode );
if( !errorCode )
{
// Got IPv6. Allow v4 too.
m_acceptor.set_option( boost::asio::ip::v6_only( false ) );
}
else
{
// Fall back to IPv4 only.
m_acceptor.close();
protocol = tcp::v4();
m_acceptor.open( protocol );
}

#ifdef _MSC_VER
m_acceptor.set_option( boost::asio::ip::tcp::acceptor::reuse_address( false ) );
typedef boost::asio::detail::socket_option::boolean<BOOST_ASIO_OS_DEF( SOL_SOCKET ), SO_EXCLUSIVEADDRUSE> exclusive_address;
m_acceptor.set_option( exclusive_address( true ) );
#else
m_acceptor.set_option( boost::asio::ip::tcp::acceptor::reuse_address( true ) );
#endif
m_acceptor.set_option( boost::asio::ip::v6_only( false ) );
m_endpoint = boost::asio::ip::tcp::endpoint( protocol, portNumber );
m_acceptor.bind( m_endpoint );
m_acceptor.listen();
}
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