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The Go programming language
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0856731daa
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Dave Cheney 0856731daa net: add IPv4 multicast to UDPConn 
notes:
Darwin is very particular about joining a multicast group if the
listneing socket is not created in "udp4" mode, the other supported
OS's are more flexible.

A simple example sets up a socket to listen on the mdns/bonjour
group 224.0.0.251:5353

// ensure the sock is udp4, and the IP is a 4 byte IPv4
socket, err := net.ListenUDP("udp4", &net.UDPAddr {
        IP: net.IPv4zero,
        // currently darwin will not allow you to bind to
        // a port if it is already bound to another process
        Port: 5353,
})
if err != nil {
        log.Exitf("listen %s", err)
}
defer socket.Close()
err = socket.JoinGroup(net.IPv4(224, 0, 0, 251))
if err != nil {
        log.Exitf("join group %s", err)
}

R=adg, rsc
CC=golang-dev
https://golang.org/cl/4066044
2011-02-16 15:07:13 -05:00
doc doc: fix release notes anchor tag 2011-02-16 09:41:34 +11:00
include windows: replace remaining __MINGW32__ instances with _WIN32 2011-02-08 15:42:52 -05:00
lib go/printer: remove notion of "Styler", remove HTML mode 2011-02-09 09:52:32 -08:00
misc template: reverse order of arguments to Execute 2011-02-09 14:23:01 -08:00
src net: add IPv4 multicast to UDPConn 2011-02-16 15:07:13 -05:00
test test/bench: update timings for new GC 2011-02-16 10:46:29 -08:00
.hgignore .hgignore: ignore src/pkg/runtime/version_*.go 2011-02-09 12:34:50 +11:00
.hgtags tag release.2011-02-15 2011-02-16 03:02:55 +11:00
AUTHORS A+C: Olivier Antoine (individual CLA) 2011-02-16 15:02:08 -05:00
CONTRIBUTORS A+C: Olivier Antoine (individual CLA) 2011-02-16 15:02:08 -05:00
favicon.ico add a favicon plus a couple of hi-res versions of gordon 2009-10-26 10:13:07 -07:00
LICENSE LICENSE: separate, change PATENTS text 2010-12-06 16:31:59 -05:00
PATENTS LICENSE: separate, change PATENTS text 2010-12-06 16:31:59 -05:00
README build: update, streamline documentation for new $GOBIN 2010-08-24 20:00:50 -04:00

README 

This is the source code repository for the Go programming language.  

For documentation about how to install and use Go,
visit http://golang.org/ or load doc/install.html in your web browser.

After installing Go, you can view a nicely formatted
doc/install.html by running godoc --http=:6060
and then visiting http://localhost:6060/doc/install.html.

Unless otherwise noted, the Go source files are distributed
under the BSD-style license found in the LICENSE file.

--

Binary Distribution Notes

If you have just untarred a binary Go distribution, you need to set
the environment variable $GOROOT to the full path of the go
directory (the one containing this README).  You can omit the
variable if you unpack it into /usr/local/go, or if you rebuild
from sources by running all.bash (see doc/install.html).
You should also add the Go binary directory $GOROOT/bin
to your shell's path.

For example, if you extracted the tar file into $HOME/go, you might
put the following in your .profile:

    export GOROOT=$HOME/go
    export PATH=$PATH:$GOROOT/bin

See doc/install.html for more details.