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Re: stdout/stderr handling by cygrunsrv/bash/tcl


On Tue, 2 Mar 2004, Patrick Samson wrote:

> I run a service installed as:
>
> cygrunsrv --install pgr-daemon
>  --path /usr/bin/bash.exe
>  --args "--login /opt/pgreplica/bin/pgrd host1 host2"
>  --user pgreplicator
>  --shutdown
>
> Everything is fine with stdout.  Messages are in /var/log/pgr-daemon.log
>
> But if my application, which is a TCL script, writes something on stderr
> (as "puts stderr $msg"),
> This message is written:
> - at the beginning of the file, overwriting the existing stdout text.
> - only when the service is stopped.
>
> Is it an as-is behaviour, a lack or a mistake in the command syntaxes,
> or something wrong in cygrunsrv or bash or tcl?

Patrick,

WFM.  I can't reproduce your problem on Win2k (without Tcl and --user).
Here's what I did:

$ mkdir /tmp/servicetest && cd /tmp/servicetest
$ cat > service.sh
#!/bin/bash
terminate() {
  echo "Terminating" >&2
  exit 0
}
trap terminate INT
echo "Starting service" >&2
trap -p
while true; do
  sleep 10
  echo "STDERR" >&2
  echo "STDOUT" >&1
done
$ cygrunsrv --install test-daemon --path /usr/bin/bash.exe --args "--login /tmp/servicetest/service.sh" --termsig INT --shutdown
$ cygrunsrv -S test-daemon; sleep 30; cygrunsrv -E test-daemon
$ cat /var/log/test-daemon.log
Starting service
trap -- 'terminate' SIGINT
STDERR
STDOUT
STDERR
STDOUT
STDERR
STDOUT
Terminating
$

So, messages going to stdout/stderr were properly redirected.  If the
above works for you, try adding a Tcl call to the test script, and see if
it changes anything.
	Igor
-- 
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