Implement dial, support IPv6 in httpclient (#5763)

* 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

View file

@ -495,7 +495,7 @@ type
ai_family*: cint ## Address family of socket.
ai_socktype*: cint ## Socket type.
ai_protocol*: cint ## Protocol of socket.
ai_addrlen*: int ## Length of socket address.
ai_addrlen*: csize ## Length of socket address.
ai_canonname*: cstring ## Canonical name of service location.
ai_addr*: ptr SockAddr ## Socket address of socket.
ai_next*: ptr AddrInfo ## Pointer to next in list.
@ -803,6 +803,7 @@ const
SIO_GET_EXTENSION_FUNCTION_POINTER* = WSAIORW(IOC_WS2,6).DWORD
SO_UPDATE_ACCEPT_CONTEXT* = 0x700B
AI_V4MAPPED* = 0x0008
AF_UNSPEC* = 0
AF_INET* = 2
AF_INET6* = 23