net: UDP Multicast support broken #2730
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Labels changed: added priority-go1, removed priority-triage. Owner changed to @mikioh. |
The test passes:
plalonde@plalonde-desktop:~/go.tip/src/pkg/net$ gotest -v multicast -file multi
cast_test.go
rm -f _test/net.a
CGOPKGPATH= cgo -- cgo_linux.go cgo_unix.go
touch _obj/_cgo_run
6g -p net -o _gotest_.6 dial.go dnsclient.go dnsmsg.go doc.go hosts.go interfa
ce.go ip.go iprawsock.go ipsock.go net.go parse.go pipe.go tcpsock.go udpsock.go
unixsock.go dnsclient_unix.go dnsconfig.go fd.go fd_linux.go file.go interface
_linux.go iprawsock_posix.go ipsock_posix.go lookup_unix.go newpollserver.go por
t.go sendfile_linux.go sock.go sock_linux.go sockopt.go sockopt_linux.go sockopt
ip.go sockoptip_linux.go tcpsock_posix.go udpsock_posix.go unixsock_posix.go _o
bj/cgo_linux.cgo1.go _obj/cgo_unix.cgo1.go _obj/_cgo_gotypes.go multicast_test.g
o
6c -FVw -I/home/plalonde/go.tip/pkg/linux_amd64 -I . -o "_cgo_defun.6" _obj/_cgo
_defun.c
gcc -m64 -I . -g -fPIC -O2 -o _cgo_main.o -c -I_obj _obj/_cgo_main.c
gcc -m64 -I . -g -fPIC -O2 -o cgo_linux.cgo2.o -c -I_obj _obj/cgo_linux.cgo2.c
gcc -m64 -I . -g -fPIC -O2 -o cgo_unix.cgo2.o -c -I_obj _obj/cgo_unix.cgo2.c
gcc -m64 -I . -g -fPIC -O2 -o _cgo_export.o -c -I_obj _obj/_cgo_export.c
gcc -m64 -g -fPIC -O2 -o _cgo1_.o _cgo_main.o cgo_linux.cgo2.o cgo_unix.cgo2.o _
cgo_export.o
cgo -dynimport _cgo1_.o >_obj/_cgo_import.c_ && mv -f _obj/_cgo_import.c_ _obj/_
cgo_import.c
6c -FVw -I . -o "_cgo_import.6" _obj/_cgo_import.c
rm -f _test/net.a
gopack grc _test/net.a _gotest_.6 _cgo_defun.6 _cgo_import.6 cgo_linux.cgo2.o c
go_unix.cgo2.o _cgo_export.o
=== RUN net.TestMulticastUDP
--- PASS: net.TestMulticastUDP (0.00 seconds)
cgo_linux.cgo1.go:236: test disabled; use --multicast to enable
=== RUN net.TestSimpleMulticastUDP
--- PASS: net.TestSimpleMulticastUDP (0.00 seconds)
cgo_linux.cgo1.go:299: test disabled; use --multicast to enable
PASS
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I managed to mess up the command line; here is the correct command line and output
plalonde@plalonde-desktop:~/go.tip/src/pkg/net$ gotest -v -multicast -file mult
icast_test.go
rm -f _test/net.a
rm -f _test/net.a
gopack grc _test/net.a _gotest_.6 _cgo_defun.6 _cgo_import.6 cgo_linux.cgo2.o c
go_unix.cgo2.o _cgo_export.o
=== RUN net.TestMulticastUDP
--- PASS: net.TestMulticastUDP (0.00 seconds)
cgo_linux.cgo1.go:343: IPv4 multicast interface: <nil>
cgo_linux.cgo1.go:353: IPv4 multicast TTL: 1
cgo_linux.cgo1.go:363: IPv4 multicast loopback: true
cgo_linux.cgo1.go:343: IPv4 multicast interface: <nil>
cgo_linux.cgo1.go:353: IPv4 multicast TTL: 1
cgo_linux.cgo1.go:363: IPv4 multicast loopback: true
cgo_linux.cgo1.go:343: IPv4 multicast interface: <nil>
cgo_linux.cgo1.go:353: IPv4 multicast TTL: 1
cgo_linux.cgo1.go:363: IPv4 multicast loopback: true
=== RUN net.TestSimpleMulticastUDP
--- PASS: net.TestSimpleMulticastUDP (0.00 seconds)
PASS
plalonde@plalonde-desktop:~/go.tip/src/pkg/net$
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This issue was closed by revision 2f63afd. Status changed to Fixed. |
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by Paul.A.Lalonde:
As discussed with Mikio and Devon here's an issue filed. What steps will reproduce the problem? This program panics with "listen udp4 0.0.0.0:18081: address already in use": package main import "net" func main() { mcaddr, err := net.ResolveUDPAddr("udp4", "224.33.44.135:18081") if err != nil { panic(err) } c, err := net.ListenUDP("udp4", &net.UDPAddr{ IP: net.IPv4zero, Port: mcaddr.Port, }) if err != nil { panic(err) } } What is the expected output? None What do you see instead? panic: listen udp4 0.0.0.0:18081: address already in use Which compiler are you using (5g, 6g, 8g, gccgo)? 6g Which operating system are you using? Ubuntu 10.04 Which revision are you using? (hg identify) 8c0e39009d5e tip Please provide any additional information below. Works in weekly.2011-12-22The text was updated successfully, but these errors were encountered: