on using audio input liquidsoap hangs when shutting down icecast 
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                 Key: LS-532
                 URL: http://dev.sourcefabric.org/browse/LS-532
             Project: Liquidsoap
          Issue Type: Bug
          Components: Liquidsoap
         Environment: Liquidsoap 1.0.0-beta+svn (@:20110515:103042).
Linux wbox-turm 2.6.32-31-generic #61-Ubuntu SMP Fri Apr 8 18:24:35 UTC 2011 
i686 GNU/Linux

            Reporter: peter


if input is alsa or pulseaudio and output is connected to a local icecast2, 
liquidsoap dies in case of shutting down icecast2.

test steps:
start liquidsoap
sudo start icecast2
play icecast stream with player
sudo stop icecast2

configuration:

channel         = mksafe(input.alsa())
#channel        = mksafe(input.pulseaudio())
#channel        = mksafe(input.alsa(device="pcm.liquidsoap"))

radio=channel
radio=limit(radio)
output.icecast(
        %vorbis.cbr(samplerate=44100, channels=2, bitrate=160),
        host="localhost", port=4565, user="liquidsoap", password="hack", 
mount="/radio", description="text"
        restart=true,
        radio
)
output.file(
        %mp3(bitrate=160,stereo=true, samplerate=44100),
        "/mnt/archive/potsdam/%Y-%m-%d/%Y-%m-%d-%H_%M_%S.mp3", 
        reopen_when={0m0s},
        radio
)

with alsa:

/var/log/icecast2/error.log     [2011-05-18  22:04:02] INFO source/source_main 
listener count on /radio now 0
/var/log/icecast2/error.log     [2011-05-18  22:04:19] INFO source/source_main 
listener count on /radio now 1
/var/log/icecast2/error.log     [2011-05-18  22:04:29] INFO sighandler/_sig_die 
Caught signal 15, shutting down...
/var/log/liquidsoap/play.log    2011/05/18 22:04:30 [/radio:2] Cry socket 
error: could not write data to host: Broken pipe in write()!
/var/log/liquidsoap/play.log    2011/05/18 22:04:30 [/radio:3] Closing 
connection...
/var/log/liquidsoap/play.log    2011/05/18 22:04:30 [threads:1] Thread 
"wallclock_alsa" aborts with exception Cry error: could not close connection: 
Transport endpoint is not connected in shutdown()!
/var/log/liquidsoap/play.log    2011/05/18 22:04:30 [threads:3] Raised by 
primitive operation at file "", line 0, characters 0-0
/var/log/liquidsoap/play.log    2011/05/18 22:04:30 [main:3] Shutdown started!
/var/log/liquidsoap/play.log    2011/05/18 22:04:30 [main:3] Waiting for 
threads to terminate...
/var/log/icecast2/error.log     [2011-05-18  22:04:29] INFO 
source/source_shutdown Source "/radio" exiting
/var/log/icecast2/error.log     [2011-05-18  22:04:29] INFO main/main Shutting 
down
/var/log/icecast2/error.log     [2011-05-18  22:04:29] INFO 
fserve/fserve_shutdown file serving thread stopped
/var/log/icecast2/error.log     [2011-05-18  22:04:30] INFO slave/_slave_thread 
shutting down current relays
/var/log/icecast2/error.log     [2011-05-18  22:04:30] INFO slave/_slave_thread 
Slave thread shutdown complete
/var/log/icecast2/error.log     [2011-05-18  22:04:30] INFO auth/auth_shutdown 
Auth shutdown
/var/log/icecast2/error.log     [2011-05-18  22:04:30] INFO yp/yp_shutdown YP 
thread down
/var/log/icecast2/error.log     [2011-05-18  22:04:30] INFO 
stats/stats_shutdown stats thread finished
/var/log/syslog May 18 22:04:31 wbox-turm init: icecast2 main process (12201) 
terminated with status 255

and for pulseaudio:

/var/log/icecast2/error.log     [2011-05-18  22:11:56] INFO 
source/source_move_clients passing 0 listeners to "/radio"
/var/log/icecast2/error.log     [2011-05-18  22:11:56] INFO 
format-vorbis/initial_vorbis_page seen initial vorbis header
/var/log/icecast2/error.log     [2011-05-18  22:11:57] INFO source/source_main 
listener count on /radio now 0
/var/log/icecast2/error.log     [2011-05-18  22:12:04] INFO source/source_main 
listener count on /radio now 1
/var/log/liquidsoap/play.log    2011/05/18 22:12:16 [/radio:2] Cry socket 
error: could not write data to host: Broken pipe in write()!
/var/log/liquidsoap/play.log    2011/05/18 22:12:16 [/radio:3] Closing 
connection...
/var/log/liquidsoap/play.log    2011/05/18 22:12:16 [threads:1] Thread 
"wallclock_pulse" aborts with exception Cry error: could not close connection: 
Transport endpoint is not connected in shutdown()!
/var/log/liquidsoap/play.log    2011/05/18 22:12:16 [threads:3] Raised by 
primitive operation at file "", line 0, characters 0-0
/var/log/liquidsoap/play.log    2011/05/18 22:12:16 [main:3] Shutdown started!
/var/log/liquidsoap/play.log    2011/05/18 22:12:16 [main:3] Waiting for 
threads to terminate...
/var/log/liquidsoap/play.log    2011/05/18 22:12:16 [main:3] Cleaning 
downloaded files...
/var/log/liquidsoap/play.log    2011/05/18 22:12:16 >>> LOG END
/var/log/icecast2/error.log     [2011-05-18  22:12:16] INFO sighandler/_sig_die 
Caught signal 15, shutting down...
/var/log/icecast2/error.log     [2011-05-18  22:12:16] INFO 
source/source_shutdown Source "/radio" exiting
/var/log/icecast2/error.log     [2011-05-18  22:12:16] INFO main/main Shutting 
down
/var/log/icecast2/error.log     [2011-05-18  22:12:16] INFO 
fserve/fserve_shutdown file serving thread stopped

BR, Peter

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