c++ - Handle limits in Win 7 application -


i have multithreaded application in c++ windows 7. app compiled dll use of c# app.

i run multithreaded code long hours process streaming data. if compile c++ code stand-alone .exe, , run code, works fine.

but when turned dll , when c# code runs it, program crashes access violation error after long runs. see similar crash when load dll python script , run long hours.

when watch behavior using task manager, see system handle count increasing @ rapid pace. after around 2 hours of code run, see handle count cross 300,000 mark , keeps increasing.

inside multithreaded code, threads being created , teared down continuously. see after thread exited, thread handle not closed explicitly closehandle function. potential problem?

how confirm handles issue. ways watch these system resources in better way? before attempt fixes, know possible solutions test runs take long time, more 5 hours, reproduce crash.

sysinternals process explorer can view handles in process , identify them thread, mutex, file, etc. handles. have closehandle() each thread handle clean them up.

as aside, creating thread expensive operation. if creating lot of thread jobs, better queue jobs , create pool of limited number of threads (usually equal number of cpus in system) pull queue , perform job.


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