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net: make multi-IP resolution more flexible.

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Remove the "netaddr" type, which ambiguously represented either one
address, or a list of addresses. Instead, use "addrList" wherever
multiple addresses are supported.

The "first" method returns the first address matching some condition
(e.g. "is it IPv4?"), primarily to support legacy code that can't handle
multiple addresses.

The "partition" method splits an addrList into two categories, as
defined by some strategy function. This is useful for implementing
Happy Eyeballs, and similar two-channel algorithms.

Finally, internetAddrList (formerly resolveInternetAddr) no longer
mangles the ordering defined by getaddrinfo. In the future, this may
be used by a sequential Dial implementation.

Updates #8453, #8455.

Change-Id: I7375f4c34481580ab40e31d33002a4073a0474f3
Reviewed-on: https://go-review.googlesource.com/8360
Reviewed-by: Mikio Hara <mikioh.mikioh@gmail.com>
Run-TryBot: Mikio Hara <mikioh.mikioh@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
This commit is contained in:
Paul Marks 2015-04-01 15:17:09 -07:00 • committed by Mikio Hara
parent 4b21be4670
commit a5dec3859a
13 changed files with 228 additions and 171 deletions
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7
src/net/unixsock.go
View file

@ -23,13 +23,6 @@ func (a *UnixAddr) String() string {
return a.Name
}
func (a *UnixAddr) toAddr() Addr {
if a == nil {
return nil
}
return a
}
// ResolveUnixAddr parses addr as a Unix domain socket address.
// The string net gives the network name, "unix", "unixgram" or
// "unixpacket".