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Implement dial, support IPv6 in httpclient (#5763)

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* Implement dial, support IPv6 in httpclient

Added ``dial`` procedure to networking modules: ``net``, ``asyncdispatch``,
``asyncnet``. It merges socket creation, address resolution, and connection
into single step. When using ``dial``, you don't have to worry about
IPv4 vs IPv6 problem.

Fixed addrInfo loop in connect to behave properly.
Previously it would stop on first non-immediate failure, instead of
continuing and trying the remaining addresses.

Fixed newAsyncNativeSocket to raise proper error if socket creation
fails.

Fixes: #3811

* Check domain during connect() only on non-Windows

This is how it was in the previous implementation of connect().

* Call 'osLastError' before 'close' in net.dial

* Record osLastError before freeAddrInfo in net.dial

* Add missing docs for 'dial' proc

* Optimize dial to create one FD per domain, add tests

And make async IPv6 servers work on Windows.

* Add IPv6 test to uri module

* Fix getAddrString error handling
This commit is contained in:
Ruslan Mustakov 2017-05-02 14:25:50 +07:00 • committed by Andreas Rumpf
commit ecf278c467
13 changed files with 559 additions and 334 deletions
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web/news/e031_version_0_16_2.rst
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@ -66,7 +66,10 @@ Library Additions
-----------------
- Added ``system.onThreadDestruction``.
- Added ``dial`` procedure to networking modules: ``net``, ``asyncdispatch``,
``asyncnet``. It merges socket creation, address resolution, and connection
into single step. When using ``dial``, you don't have to worry about
IPv4 vs IPv6 problem. ``httpclient`` now supports IPv6.
Tool Additions
--------------