{"id":8237,"date":"2024-01-31T11:42:42","date_gmt":"2024-01-31T10:42:42","guid":{"rendered":"https:\/\/solidt.eu\/site\/?p=8237"},"modified":"2024-01-31T11:42:44","modified_gmt":"2024-01-31T10:42:44","slug":"c-getonce","status":"publish","type":"post","link":"https:\/\/solidt.eu\/site\/c-getonce\/","title":{"rendered":"C# GetOnce"},"content":{"rendered":"\n<div style=\"height: 250px; position:relative; margin-bottom: 50px;\" class=\"wp-block-simple-code-block-ace\"><pre class=\"wp-block-simple-code-block-ace\" style=\"position:absolute;top:0;right:0;bottom:0;left:0\" data-mode=\"csharp\" data-theme=\"monokai\" data-fontsize=\"14\" data-lines=\"Infinity\" data-showlines=\"true\" data-copy=\"false\">public class GetOnce&lt;T>\r\n{\r\n    private readonly Func&lt;Task&lt;T>> fn;\r\n    private Task&lt;T> dataTask = null;\r\n\r\n    public GetOnce(Func&lt;Task&lt;T>> initialFn)\r\n    {\r\n        fn = initialFn;\r\n    }\r\n\r\n    public async Task&lt;T> Get()\r\n    {\r\n        dataTask ??= fn();\r\n        return await dataTask;\r\n    }\r\n}\r\n\r\n\/\/ Example\r\npublic class Program\r\n{\r\n    public static GetOnce&lt;string> Content = new(() => { Console.WriteLine(\"ReadingFile\"); return File.ReadAllTextAsync(@\"C:\\test.txt\"); });\r\n\r\n    public static async Task Main()\r\n    {\r\n        Console.WriteLine(await Content.Get());\r\n        Console.WriteLine(await Content.Get());\r\n    }\r\n}<\/pre><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-8237","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/solidt.eu\/site\/wp-json\/wp\/v2\/posts\/8237","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/solidt.eu\/site\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/solidt.eu\/site\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/solidt.eu\/site\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/solidt.eu\/site\/wp-json\/wp\/v2\/comments?post=8237"}],"version-history":[{"count":1,"href":"https:\/\/solidt.eu\/site\/wp-json\/wp\/v2\/posts\/8237\/revisions"}],"predecessor-version":[{"id":8238,"href":"https:\/\/solidt.eu\/site\/wp-json\/wp\/v2\/posts\/8237\/revisions\/8238"}],"wp:attachment":[{"href":"https:\/\/solidt.eu\/site\/wp-json\/wp\/v2\/media?parent=8237"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/solidt.eu\/site\/wp-json\/wp\/v2\/categories?post=8237"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/solidt.eu\/site\/wp-json\/wp\/v2\/tags?post=8237"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}