Re^4: Stop a .exe

This is my Script:

use strict;
use warnings;
use Win32::Socketpair qw[ winopen2 ];

## Run the command and get a bi-direction pipe to it.
my $pipe = winopen2( 'PwrUsbCmd.exe 0 0 0' );
my @results = <$pipe>;
print $pipe "\n";
print @results;
[download]

It is not working. The Output from 'PwrUsbCmd.exe' is:

PowerUSB is not connected
Enter to continue ## Here I have to press enter to exit from this EXE 
+and it is not working.
[download]

Comment on Re^4: Stop a .exe Select or Download Code

Replies are listed 'Best First'.
Re^5: Stop a .exe by BrowserUk (Patriarch) on Aug 22, 2012 at 01:15 UTC
I think I've managed to re-create the situation you are seeing. I believe you are suffering from buffering. Please try the following code and report your results. This isn't intended as a complete solution, but rather a diagnostic to understand your problem. #! perl -slw use strict; use Win32::Socketpair qw[ winopen2 ]; ## Run the command and get a bi-direction pipe to it. my( $pid, $pipe ) = winopen2( 'RunMe.exe', $ARGV[0 ] // 10 ); ## preload the childs input buffer with the answer to the prompt; print $pipe "\n"; ## give the kid a chance to say whatever it has to say sleep 2; ## a nonblocking read to grab whatever has made it through the buffers ## which if the kid produced less output than the size of its output b +uffer ## and didn't flush them, may be nothing at all my $results = ''; sysread( $pipe, $results, 65536, length $results ); close $pipe; print for split "\n", $results; ## May produce no output [download] With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday' Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error. "Science is about questioning the status quo. Questioning authority". In the absence of evidence, opinion is indistinguishable from prejudice. The start of some sanity?	[reply] [d/l]

Replies are listed 'Best First'.

Re^5: Stop a .exe
by BrowserUk (Patriarch) on Aug 22, 2012 at 01:15 UTC

I think I've managed to re-create the situation you are seeing. I believe you are suffering from buffering.

Please try the following code and report your results. This isn't intended as a complete solution, but rather a diagnostic to understand your problem.

#! perl -slw
use strict;
use Win32::Socketpair qw[ winopen2 ];

## Run the command and get a bi-direction pipe to it.
my( $pid, $pipe ) = winopen2( 'RunMe.exe',  $ARGV[0 ] // 10 );

## preload the childs input buffer with the answer to the prompt;
print $pipe "\n";

## give the kid a chance to say whatever it has to say
sleep 2;

## a nonblocking read to grab whatever has made it through the buffers
## which if the kid produced less output than the size of its output b
+uffer
## and didn't flush them, may be nothing at all
my $results = '';
sysread( $pipe, $results, 65536, length $results );

close $pipe;

print for split "\n", $results; ## May produce no output
[download]

With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.

"Science is about questioning the status quo. Questioning authority".

In the absence of evidence, opinion is indistinguishable from prejudice.

The start of some sanity?

[reply]
[d/l]