[NTLUG:Discuss] Forking server in bash posible ? (fun hack ...noapparent val

[gan hawk]

Hi,

Yes it would run the jobs parallely, but it would keep spawning as many 
process as it can and crash. We need to spawn only if nc accepts a 
connection. So I was looking for a way to read signals in bash.

Thanks,
Ganesh


>
>Use the &.
>
>It starts a process and sends it to the background...
>
>-----Burton
>
> > -----Original Message-----
> > From: discuss-bounces at ntlug.org [mailto:discuss-bounces at ntlug.org]On
> > Behalf Of gan hawk
> > Sent: Wednesday, March 31, 2004 12:19 AM
> > To: discuss at ntlug.org
> > Subject: [NTLUG:Discuss] Forking server in bash posible ? (fun hack
> > ...no apparent value )
> >
> >
> > Hi,
> >
> > This is something that has no value but I have done to amuse myself.  So
> > read on if you also want to waste some time ;)
> >
> > I am trying to learn perl and saw this perl script to create a
> > streaming MP3
> > server on perl monks. I wanted to do the same in bash and here is what I
> > came up with (see below)... Now I was wondering if it was
> > possible to make
> > it a forking server. Like listen and when some connection comes
> > in, fork or
> > spaw a child process to do the work and continue listening. I think its
> > possible with netcat but I cannot figure it out. Anyways if
> > someone can do
> > that it would be fun.
> >
> > #!/bin/bash
> > DIR=`pwd`
> > echo "BASH_MP3D - A Streaming MP3 Server in Bash "
> > echo "Generating Playlist .....Plz wait"
> > PLAYLIST=`find $DIR -name *.mp3`
> > #PLAYLIST=`ls *.mp3`
> > NUM=`echo $PLAYLIST | wc -w`
> > echo "done."
> > echo "Listening on 5700 ....."
> > {
> > while true
> > do
> > #get seconds for random number
> > rand=`date | cut -d ':' -f 3 |cut -d ' ' -f1`
> > let "rand += 1"
> > while [ "$rand" -gt "$NUM" ]
> > do
> > let "rand -= $NUM"
> > done
> > SONG=`echo $PLAYLIST | cut -d ' ' -f$rand`
> > #Now we play the random song SONG
> > echo "Playing $SONG ... " >& 2
> > echo "HTTP/1.0 200 OK";
> > echo "Content-Type: audio/x-mp3stream";
> > echo "Cache-Control: no-cache ";
> > echo "Pragma: no-cache ";
> > echo "Connection: close ";
> > echo "x-audiocast-name: BASH MP3 Server";
> > echo;
> > echo;
> > dd if=$SONG bs=1024
> > done
> > }| nc -l -p 5700
> >
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