{"id":477132,"date":"2023-08-09T09:08:09","date_gmt":"2023-08-09T09:08:09","guid":{"rendered":""},"modified":"2023-09-05T11:14:05","modified_gmt":"2023-09-05T11:14:05","slug":"event-driven-programming","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/tr\/wiki\/event-driven-programming\/","title":{"rendered":"Olay odakl\u0131 programlama"},"content":{"rendered":"<p>Olay g\u00fcd\u00fcml\u00fc programlama, olay i\u015fleyicileri ilkesine g\u00f6re \u00e7al\u0131\u015fan bir programlama paradigmas\u0131d\u0131r. Bu programlama yakla\u015f\u0131m\u0131, fare t\u0131klamalar\u0131, tu\u015flara basma gibi kullan\u0131c\u0131 eylemleri veya dosyalar\u0131n y\u00fcklenmesi veya alarmlar\u0131n tetiklenmesi gibi sistem taraf\u0131ndan olu\u015fturulan olaylar olabilecek olaylar etraf\u0131nda yo\u011funla\u015f\u0131r.<\/p>\n<h2>Olay Odakl\u0131 Programlaman\u0131n Ortaya \u00c7\u0131k\u0131\u015f\u0131<\/h2>\n<p>Olay odakl\u0131 programlama, ilk grafik kullan\u0131c\u0131 aray\u00fczlerinden (GUI&#039;ler) kaynaklanm\u0131\u015ft\u0131r. Bu paradigman\u0131n ilk s\u00f6z\u00fc, 1970&#039;lerin sonu ve 1980&#039;lerin ba\u015f\u0131nda GUI tasar\u0131m\u0131nda yo\u011fun olarak kullan\u0131lan, erken d\u00f6nem nesne y\u00f6nelimli programlama dili olan Xerox PARC&#039;da Smalltalk&#039;\u0131n geli\u015ftirilmesi s\u0131ras\u0131nda olmu\u015ftur.<\/p>\n<p>Bu d\u00f6nemde geli\u015ftiriciler, geleneksel prosed\u00fcrel programlama modellerinin bir GUI&#039;deki kullan\u0131c\u0131 etkile\u015fimlerini y\u00f6netmeye uygun olmad\u0131\u011f\u0131n\u0131 fark ettiler. Sonu\u00e7 olarak, belirli eylemlerin (olaylar\u0131n) i\u015flev \u00e7a\u011fr\u0131lar\u0131n\u0131 (olay i\u015fleyicileri) tetikleyebildi\u011fi ve daha etkile\u015fimli ve duyarl\u0131 programlara olanak tan\u0131yan olay odakl\u0131 programlama modelini tan\u0131tt\u0131lar.<\/p>\n<h2>Olay Odakl\u0131 Programlamaya Derinlemesine Bir Bak\u0131\u015f<\/h2>\n<p>Olay g\u00fcd\u00fcml\u00fc programlamada program\u0131n ak\u0131\u015f\u0131, kullan\u0131c\u0131 eylemleri, sens\u00f6r \u00e7\u0131kt\u0131lar\u0131 veya di\u011fer programlardan veya i\u015f par\u00e7ac\u0131klar\u0131ndan gelen mesajlar gibi olaylarla belirlenir. Bu olaylar\u0131n her biri, giri\u015f olay\u0131n\u0131 i\u015fleyen bir geri \u00e7a\u011f\u0131rma alt yordam\u0131 olan bir olay i\u015fleyicisine sahiptir.<\/p>\n<p>Tipik olarak olaya dayal\u0131 programlama a\u015fa\u011f\u0131daki ad\u0131mlar\u0131 i\u00e7erir:<\/p>\n<ol>\n<li>Olaylar\u0131 dinleyen bir olay d\u00f6ng\u00fcs\u00fc.<\/li>\n<li>\u0130lgili olaylar taraf\u0131ndan tetiklenen olay i\u015fleyicileri.<\/li>\n<li>Bir olay\u0131 parametrelerle kaps\u00fclleyen olay nesneleri.<\/li>\n<\/ol>\n<p>Programc\u0131, kar\u015f\u0131l\u0131k gelen olay meydana geldi\u011finde tetiklenecek olan bu olay i\u015fleyicilerini belirtir. Bu yakla\u015f\u0131m, program ak\u0131\u015f\u0131n\u0131n programc\u0131n\u0131n kodu taraf\u0131ndan belirlendi\u011fi geleneksel prosed\u00fcrel programlamadan temel olarak farkl\u0131d\u0131r.<\/p>\n<h2>Olay Odakl\u0131 Programlaman\u0131n \u0130\u00e7 Yap\u0131s\u0131<\/h2>\n<p>Olay odakl\u0131 programlama modeli bir olay d\u00f6ng\u00fcs\u00fc etraf\u0131nda d\u00f6ner. Bu d\u00f6ng\u00fc, olaylar\u0131 bekler ve meydana geldiklerinde bunlar\u0131 ilgili i\u015fleyicilere g\u00f6nderir.<\/p>\n<ol>\n<li><strong>Etkinlik S\u0131ras\u0131<\/strong>: T\u00fcm olaylar, i\u015flenmeyi bekledikleri bir olay kuyru\u011funa gider.<\/li>\n<li><strong>Olay D\u00f6ng\u00fcs\u00fc<\/strong>: Bu, bir programdaki olaylar\u0131 veya mesajlar\u0131 bekleyen ve g\u00f6nderen bir kontrol yap\u0131s\u0131d\u0131r. Olay kuyru\u011fundan olaylar\u0131 al\u0131r ve bunlar\u0131 olay i\u015fleyicisine g\u00f6nderir.<\/li>\n<li><strong>Olay i\u015fleyicisi<\/strong>: Bunlar olay d\u00f6ng\u00fcs\u00fcnden al\u0131nan olaylar\u0131 i\u015fleyen alt rutinlerdir.<\/li>\n<\/ol>\n<h2>Olay Odakl\u0131 Programlaman\u0131n Temel \u00d6zellikleri<\/h2>\n<ul>\n<li>\n<p><strong>E\u015fzamans\u0131zl\u0131k<\/strong>: Olay g\u00fcd\u00fcml\u00fc programlamada olaylar e\u015fzamans\u0131z bir \u015fekilde i\u015flenir. Bu, olay i\u015fleyicilerinin s\u0131raya al\u0131nd\u0131klar\u0131 s\u0131raya g\u00f6re de\u011fil, herhangi bir zamanda tetiklenebilece\u011fi anlam\u0131na gelir.<\/p>\n<\/li>\n<li>\n<p><strong>Gev\u015fek Kaplin<\/strong>: Olaylar ve i\u015fleyiciler gev\u015fek bir \u015fekilde ba\u011fl\u0131d\u0131r. Olay kayna\u011f\u0131n\u0131n i\u015fleyiciler hakk\u0131nda hi\u00e7bir \u015fey bilmesine gerek yoktur, bu da uygulaman\u0131n mod\u00fclerli\u011fini art\u0131r\u0131r.<\/p>\n<\/li>\n<li>\n<p><strong>Engellenmeyen G\/\u00c7 \u0130\u015flemleri<\/strong>: Olay g\u00fcd\u00fcml\u00fc programlama \u00f6zellikle y\u00fcksek G\/\u00c7 i\u015flemlerinin oldu\u011fu uygulamalar i\u00e7in kullan\u0131\u015fl\u0131d\u0131r ve uygulamalar\u0131 son derece duyarl\u0131 hale getirir.<\/p>\n<\/li>\n<\/ul>\n<h2>Olay Odakl\u0131 Programlama T\u00fcrleri<\/h2>\n<p>Olay odakl\u0131 programlama \u00e7e\u015fitli bi\u00e7imlerde gelir. Bunlar \u015funlar\u0131 i\u00e7erir:<\/p>\n<ol>\n<li><strong>Grafik Kullan\u0131c\u0131 Aray\u00fcz\u00fc (GUI) Programlama<\/strong>: GUI programlamada, t\u0131klamalar veya tu\u015flara basma gibi kullan\u0131c\u0131 eylemleri olaylar\u0131 tetikler.<\/li>\n<li><strong>Sunucu Uygulamalar\u0131<\/strong>: Sunucu uygulamalar\u0131nda istemcilerden gelen istekler olay olarak de\u011ferlendirilir.<\/li>\n<li><strong>Zaman Odakl\u0131 Programlama<\/strong>: Bu, bir zamanlay\u0131c\u0131 taraf\u0131ndan tetiklenen olaylar\u0131 i\u00e7erir.<\/li>\n<\/ol>\n<p>\u0130\u015fte bu t\u00fcrleri kar\u015f\u0131la\u015ft\u0131ran bir tablo:<\/p>\n<table>\n<thead>\n<tr>\n<th>Tip<\/th>\n<th>\u00d6rnek<\/th>\n<th>Kullan\u0131m \u00d6rne\u011fi<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>GUI Programlama<\/td>\n<td>Bir masa\u00fcst\u00fc uygulamas\u0131nda d\u00fc\u011fmeye basma olay\u0131<\/td>\n<td>Masa\u00fcst\u00fc uygulamalar\u0131, Video oyunlar\u0131<\/td>\n<\/tr>\n<tr>\n<td>Sunucu Uygulamalar\u0131<\/td>\n<td>Bir web sunucusundaki HTTP istek olay\u0131<\/td>\n<td>Web sunucular\u0131, Proxy sunucular\u0131<\/td>\n<\/tr>\n<tr>\n<td>Zaman Odakl\u0131<\/td>\n<td>Bir yaz\u0131l\u0131mda zamanlanm\u0131\u015f g\u00f6revler<\/td>\n<td>Zamanlay\u0131c\u0131lar, G\u00f6rev otomasyonlar\u0131<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Olay Odakl\u0131 Programlamay\u0131 Uygulamak: Zorluklar ve \u00c7\u00f6z\u00fcmler<\/h2>\n<p>Olay odakl\u0131 programlama, \u00f6zellikle karma\u015f\u0131k uygulamalar i\u00e7in zorlay\u0131c\u0131 olabilir. Olay i\u015flemenin e\u015fzamans\u0131z yap\u0131s\u0131ndan dolay\u0131 kontrol ak\u0131\u015f\u0131n\u0131 y\u00f6netmek zor olabilir. Do\u011frusal olmayan kontrol ak\u0131\u015f\u0131 nedeniyle hata ay\u0131klama da daha karma\u015f\u0131k olabilir.<\/p>\n<p>Ancak modern programlama dilleri ve k\u00fct\u00fcphaneler bu zorluklara \u00e7\u00f6z\u00fcmler sunmaktad\u0131r. JavaScript&#039;te vaatler ve e\u015fzamans\u0131z\/beklemede veya Dart&#039;ta Vadeli \u0130\u015flemler ve e\u015fzamans\u0131z\/beklemede, e\u015fzamans\u0131z kontrol ak\u0131\u015f\u0131n\u0131 y\u00f6netmeye yard\u0131mc\u0131 olan soyutlamalar\u0131n \u00f6rnekleridir.<\/p>\n<h2>Olay Odakl\u0131 Programlamay\u0131 Kar\u015f\u0131la\u015ft\u0131rma<\/h2>\n<p>Olay Odakl\u0131 programlaman\u0131n Prosed\u00fcrel programlama ve Nesne Y\u00f6nelimli programlamayla kar\u015f\u0131la\u015ft\u0131r\u0131lmas\u0131:<\/p>\n<table>\n<thead>\n<tr>\n<th>\u00d6zellikler<\/th>\n<th>Olay Odakl\u0131<\/th>\n<th>Usul<\/th>\n<th>Nesne odakl\u0131<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Ak\u0131\u015f kontrol\u00fc<\/td>\n<td>Etkinli\u011fe dayal\u0131<\/td>\n<td>Do\u011frusal<\/td>\n<td>Y\u00f6ntem \u00e7a\u011fr\u0131lar\u0131<\/td>\n<\/tr>\n<tr>\n<td>E\u015fzamans\u0131zl\u0131k<\/td>\n<td>Evet<\/td>\n<td>HAYIR<\/td>\n<td>Nadiren<\/td>\n<\/tr>\n<tr>\n<td>Mod\u00fclerlik<\/td>\n<td>Y\u00fcksek<\/td>\n<td>Orta<\/td>\n<td>Y\u00fcksek<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Olay Odakl\u0131 Programlamaya \u0130li\u015fkin Gelecek Perspektifleri ve Teknolojiler<\/h2>\n<p>Olay odakl\u0131 model, \u00f6zellikle ger\u00e7ek zamanl\u0131 web uygulamalar\u0131, sunucusuz mimariler ve Nesnelerin \u0130nterneti (IoT) cihazlar\u0131nda gelecekteki teknolojiler i\u00e7in \u00f6nemli bir potansiyele sahiptir.<\/p>\n<ol>\n<li>\n<p><strong>Ger\u00e7ek Zamanl\u0131 Web Uygulamalar\u0131<\/strong>: WebSockets gibi teknolojilerin ve Socket.IO gibi kitapl\u0131klar\u0131n yard\u0131m\u0131yla web uygulamalar\u0131, kullan\u0131c\u0131 etkile\u015fimlerine ger\u00e7ek zamanl\u0131 yan\u0131t vererek kullan\u0131c\u0131 deneyimini geli\u015ftirebilir.<\/p>\n<\/li>\n<li>\n<p><strong>Sunucusuz Mimariler<\/strong>: Sunucusuz bilgi i\u015flemde i\u015flevler olaya dayal\u0131d\u0131r, olaylara yan\u0131t olarak y\u00fcr\u00fct\u00fcl\u00fcr ve gerekti\u011finde \u00f6l\u00e7eklenir.<\/p>\n<\/li>\n<li>\n<p><strong>Nesnelerin interneti<\/strong>: IoT cihazlar\u0131, genellikle ger\u00e7ek zamanl\u0131 olarak i\u015flenmesi gereken \u00e7ok say\u0131da olay \u00fcretir ve olay odakl\u0131 programlamay\u0131 m\u00fckemmel bir uyum haline getirir.<\/p>\n<\/li>\n<\/ol>\n<h2>Proxy Sunucular\u0131 ve Olay Odakl\u0131 Programlama<\/h2>\n<p>Proxy sunucular\u0131 ba\u011flam\u0131nda, olay odakl\u0131 programlama, y\u00fcksek hacimli istemci isteklerinin y\u00f6netilmesinde faydal\u0131 olabilir. Proxy sunucular\u0131 esas olarak istemciler ve di\u011fer sunucular aras\u0131nda arac\u0131 g\u00f6revi g\u00f6r\u00fcr ve her istemci iste\u011fi bir olay olarak de\u011ferlendirilebilir.<\/p>\n<p>Olay odakl\u0131 bir proxy sunucusu, bu istemci isteklerini e\u015fzamans\u0131z olarak verimli bir \u015fekilde i\u015fleyebilir, b\u00f6ylece sunucu performans\u0131n\u0131 ve yan\u0131t verme h\u0131z\u0131n\u0131 art\u0131rabilir.<\/p>\n<h2>\u0130lgili Ba\u011flant\u0131lar<\/h2>\n<p>Olay odakl\u0131 programlama hakk\u0131nda daha fazla ara\u015ft\u0131rma yapmak i\u00e7in \u015fu kaynaklar\u0131 g\u00f6z \u00f6n\u00fcnde bulundurun:<\/p>\n<ol>\n<li><a href=\"https:\/\/en.wikipedia.org\/wiki\/Event-driven_programming\" target=\"_new\" rel=\"noopener nofollow\">Olay Odakl\u0131 Programlama - Vikipedi<\/a><\/li>\n<li><a href=\"https:\/\/www.codecademy.com\/learn\/learn-java\/modules\/learn-java-event-driven-programming\" target=\"_new\" rel=\"noopener nofollow\">Olay Odakl\u0131 Programlamaya Giri\u015f<\/a><\/li>\n<li><a href=\"https:\/\/nodejs.dev\/learn\/the-nodejs-event-loop\" target=\"_new\" rel=\"noopener nofollow\">Node.js&#039;de Olay Odakl\u0131 Programlama<\/a><\/li>\n<\/ol>\n<p>Olay odakl\u0131 programlaman\u0131n geni\u015f ve b\u00fcy\u00fcleyici bir konu oldu\u011funu unutmay\u0131n. Ger\u00e7ek zamanl\u0131 uygulamalar\u0131n, e\u015fzamans\u0131z i\u015flemenin ve da\u011f\u0131t\u0131lm\u0131\u015f bilgi i\u015flemin artan yayg\u0131nl\u0131\u011f\u0131yla birlikte, olaya dayal\u0131 programlamay\u0131 anlamak ve uzmanla\u015fmak, geli\u015ftiricilerin verimli, duyarl\u0131 ve \u00f6l\u00e7eklenebilir yaz\u0131l\u0131mlar olu\u015fturmas\u0131na yard\u0131mc\u0131 olabilir.<\/p>","protected":false},"featured_media":468339,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-477132","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about <mark>Event-Driven Programming: The Revolution in Software Design<\/mark>","faq_items":[{"question":"What is event-driven programming?","answer":"<p>Event-driven programming is a programming paradigm that centers around events and event handlers. It could involve user actions like mouse clicks or key presses, or system-generated events such as loading files or triggering alarms.<\/p>"},{"question":"Where and when did event-driven programming originate?","answer":"<p>Event-driven programming originated from early graphical user interfaces (GUIs) in the late 1970s and early 1980s. The first mention of this paradigm was during the development of Smalltalk at Xerox PARC, an early object-oriented programming language that was heavily used in GUI design.<\/p>"},{"question":"How does event-driven programming work?","answer":"<p>Event-driven programming operates on the principle of an event loop which waits for events, and event handlers which process the events when they occur. The event loop retrieves events from an event queue and sends them to the respective event handlers for processing.<\/p>"},{"question":"What are the key features of event-driven programming?","answer":"<p>The key features of event-driven programming are its asynchronicity, loose coupling of events and handlers, and non-blocking I\/O operations, which make the applications highly responsive.<\/p>"},{"question":"What are some types of event-driven programming?","answer":"<p>Event-driven programming comes in several forms including Graphical User Interface (GUI) Programming where user actions trigger events, server applications where requests from clients are treated as events, and Time-Driven Programming where events are triggered by a timer.<\/p>"},{"question":"What are some challenges and solutions in event-driven programming?","answer":"<p>Event-driven programming can be challenging due to the asynchronous nature of event handling which can make control flow and debugging complex. However, modern programming languages and libraries offer solutions to these challenges with abstractions that help manage asynchronous control flow, such as Promises and async\/await in JavaScript, or Futures and async\/await in Dart.<\/p>"},{"question":"How does event-driven programming relate to future technologies?","answer":"<p>The event-driven model has significant potential for future technologies, particularly in real-time web applications, serverless architectures, and Internet of Things (IoT) devices. Real-time web applications can respond to user interactions immediately, serverless computing can execute functions in response to events, and IoT devices generate vast amounts of events that need to be processed often in real-time.<\/p>"},{"question":"How can proxy servers benefit from event-driven programming?","answer":"<p>In the context of proxy servers, event-driven programming can be beneficial in managing high volumes of client requests. Each client request can be treated as an event and handled asynchronously, enhancing server performance and responsiveness.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/tr\/wp-json\/wp\/v2\/wiki\/477132","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oneproxy.pro\/tr\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/oneproxy.pro\/tr\/wp-json\/wp\/v2\/types\/wiki"}],"version-history":[{"count":0,"href":"https:\/\/oneproxy.pro\/tr\/wp-json\/wp\/v2\/wiki\/477132\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/tr\/wp-json\/wp\/v2\/media\/468339"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/tr\/wp-json\/wp\/v2\/media?parent=477132"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}