[sans-io] glue layer: use platform-agnostic socketpair implementation
[sans-io] glue layer: use platform-agnostic socketpair implementation

mitmproxy/mitmproxy,Kriechi/mitmproxy,mitmproxy/mitmproxy,mhils/mitmproxy,mitmproxy/mitmproxy,mhils/mitmproxy,mhils/mitmproxy,mhils/mitmproxy,mitmproxy/mitmproxy,Kriechi/mitmproxy,mhils/mitmproxy,Kriechi/mitmproxy,mitmproxy/mitmproxy,Kriechi/mitmproxy