powershell - Session Info in global variables -


i have function in powershell, establishes session , stores info in global variables:

$global:transport = new-object fix.serversockettransport $fixhost, $fixport

now, within application $global:transport variable used send , receive data.

after script execution ends session closed? $global:transport value reset? (i have commented out part disconnect session)

after script ends, though not create new session, sends , receives data through $global:transport variable. why happen?

globals indeed global session. after script executes (and creates global) variable , value persists. btw powershell / .net not automatically close objects. if object implements finalizer when collected via garbage collection (at indeterminate time in future) finalizer run , close or release associated native resources. if object implements idisposable or otherwise has close() or dispose() method on it, should call method when you're done object. also, in order keep powershell hanging onto object forever (you did put in global), can either a) set global variable $null or b) (and better) remove variable altogether using remove-variable.

another option create script scope variable in outter script (startup script). script variable should visible other scripts execute , go away when script finished. however, in case above, if object implement close() or dispose() should call on object when you're done it.


Comments

Post a Comment

Popular posts from this blog

apache - Remove .php and add trailing slash in url using htaccess not loading css -

i have add following code htaccess file removing .php extension , add trailing slash urls. worked fine reduced page loading speed , css code not loading @ all. pages ugly. please help rewriteengine on rewritebase / ## hide .php extension snippet # externally redirect /dir/foo.php /dir/foo rewritecond %{the_request} ^[a-z]{3,}\s([^.]+)\.php [nc] rewriterule ^ %1/ [r,l] # add trailing slash rewritecond %{request_filename} !-f rewritecond %{request_uri} !/$ rewriterule . %{request_uri}/ [l,r=301] # internally forward /dir/foo /dir/foo.php rewritecond %{request_filename} !-d rewritecond %{request_filename}.php -f rewriterule ^(.*?)/?$ $1.php [l] we can rewrite urls using .htaccess files. before writing in .htaccess files need verify kind of server using. can check server adding a <?php phpinfo(); ?> in php page. ensure mod_rewrite module enabled in apache server. can identified checking phpinfo included page. common methods used url rewriting follows ...
Read more

javascript - jQuery show full size image on click -

pretty self explanatory not workking . i want display full image when user click on image... yes know there tons of plugins but i want keep simple. any idea ? css : .full { display: none; width: 500px; height: 500px; margin-left: 100px; margin-top: -300px; position: fixed; background-color: #f00; z-index: 6; } .thumbnail { width: 50px; height: 50px; } html: <img class="thumbnail" src="http://4.bp.blogspot.com/-uhbdp2esxng/txneptvi92i/aaaaaaaaaky/upfqis7zto0/s1600/rihanna-wallpaper.jpg"> jquery: $(document).ready(function() { $('.thumbnail').on('click', function() { var img = $('<img />',{src:this.src,'class':'full'}); $('.full').html(img).show(); console.log('done!'); }); }); try looking how jquery works. $(document).ready(function() { $('.thumbnail').on('click', function(...
Read more