{"id":6497,"date":"2024-10-28T11:14:31","date_gmt":"2024-10-28T15:14:31","guid":{"rendered":"https:\/\/blogs.mathworks.com\/videos\/?p=6497"},"modified":"2024-10-28T11:15:37","modified_gmt":"2024-10-28T15:15:37","slug":"implementing-a-lock-file-with-help-from-chatgpt","status":"publish","type":"post","link":"https:\/\/blogs.mathworks.com\/videos\/2024\/10\/28\/implementing-a-lock-file-with-help-from-chatgpt\/","title":{"rendered":"Implementing a Lock File with Help from ChatGPT"},"content":{"rendered":"<p>I have a utility that lets me save random metrics about various systems and processes to a spreadsheet. This utility is called from many systems that run concurrently and sometimes there can be simultaneous attempts to write to the file which fails. I want to implement a lock file to allow safe simultaneous writing.<\/p>\n<p>Features covered in this <a href=\"https:\/\/blogs.mathworks.com\/videos\/2015\/10\/29\/matlab-code-along-videos\/\">code-along<\/a> style video include:<\/p>\n<ul>\n<li><tt>fopen<\/tt>, <tt>fclose<\/tt><\/li>\n<li><tt>writetable<\/tt><\/li>\n<\/ul>\n<p><div class=\"row\"><div class=\"col-xs-12 containing-block\"><div class=\"bc-outer-container add_margin_20\"><videoplayer><div class=\"video-js-container\"><video data-video-id=\"6363748865112\" data-video-category=\"blog\" data-autostart=\"false\" data-account=\"62009828001\" data-omniture-account=\"mathwgbl\" data-player=\"rJ9XCz2Sx\" data-embed=\"default\" id=\"mathworks-brightcove-player\" class=\"video-js\" controls><\/video><script src=\"\/\/players.brightcove.net\/62009828001\/rJ9XCz2Sx_default\/index.min.js\"><\/script><script>if (typeof(playerLoaded) === 'undefined') {var playerLoaded = false;}(function isVideojsDefined() {if (typeof(videojs) !== 'undefined') {videojs(\"mathworks-brightcove-player\").on('loadedmetadata', function() {playerLoaded = true;});} else {setTimeout(isVideojsDefined, 10);}})();<\/script><\/div><\/videoplayer><\/div><\/div><\/div><\/p>\n<p>Play the video in full screen mode for a better viewing experience.\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"<div class=\"thumbnail thumbnail_asset asset_overlay video\"><a href=\"https:\/\/blogs.mathworks.com\/videos\/2024\/10\/28\/implementing-a-lock-file-with-help-from-chatgpt\/?dir=autoplay\"><img decoding=\"async\" src=\"https:\/\/cf-images.us-east-1.prod.boltdns.net\/v1\/static\/62009828001\/e01428b2-c608-4694-bc29-def0470d59a6\/678a34e1-dd40-4f0a-81bf-be92720b30b6\/1280x720\/match\/image.jpg\" onError=\"this.style.display ='none';\"\/><\/p>\n<div class=\"overlay_container\">\n      <span class=\"icon-video icon_color_null\"><time class=\"video_length\">22:24<\/time><\/span>\n      <\/div>\n<p>      <\/a><\/div>\n<p>I have a utility that lets me save random metrics about various systems and processes to a spreadsheet. This utility is called from many systems that run concurrently and sometimes there can be&#8230; <a class=\"read-more\" href=\"https:\/\/blogs.mathworks.com\/videos\/2024\/10\/28\/implementing-a-lock-file-with-help-from-chatgpt\/\">read more >><\/a><\/p>\n","protected":false},"author":133,"featured_media":6515,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[27,4],"tags":[],"_links":{"self":[{"href":"https:\/\/blogs.mathworks.com\/videos\/wp-json\/wp\/v2\/posts\/6497"}],"collection":[{"href":"https:\/\/blogs.mathworks.com\/videos\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blogs.mathworks.com\/videos\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.mathworks.com\/videos\/wp-json\/wp\/v2\/users\/133"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.mathworks.com\/videos\/wp-json\/wp\/v2\/comments?post=6497"}],"version-history":[{"count":4,"href":"https:\/\/blogs.mathworks.com\/videos\/wp-json\/wp\/v2\/posts\/6497\/revisions"}],"predecessor-version":[{"id":6512,"href":"https:\/\/blogs.mathworks.com\/videos\/wp-json\/wp\/v2\/posts\/6497\/revisions\/6512"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blogs.mathworks.com\/videos\/wp-json\/wp\/v2\/media\/6515"}],"wp:attachment":[{"href":"https:\/\/blogs.mathworks.com\/videos\/wp-json\/wp\/v2\/media?parent=6497"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.mathworks.com\/videos\/wp-json\/wp\/v2\/categories?post=6497"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.mathworks.com\/videos\/wp-json\/wp\/v2\/tags?post=6497"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}