{"id":40960,"date":"2026-03-02T16:00:45","date_gmt":"2026-03-02T13:00:45","guid":{"rendered":"https:\/\/fatihsoysal.com\/blog\/idisposable-finalizerlar-ve-dispose-pattern-net-gelistiricileri-icin-kapsamli-rehber\/"},"modified":"2026-03-02T16:00:45","modified_gmt":"2026-03-02T13:00:45","slug":"idisposable-finalizerlar-ve-dispose-pattern-net-gelistiricileri-icin-kapsamli-rehber","status":"publish","type":"post","link":"https:\/\/fatihsoysal.com\/blog\/idisposable-finalizerlar-ve-dispose-pattern-net-gelistiricileri-icin-kapsamli-rehber\/","title":{"rendered":"IDisposable, Finalizer’lar ve Dispose Pattern: .NET Geli\u015ftiricileri \u0130\u00e7in Kapsaml\u0131 Rehber"},"content":{"rendered":"

IDisposable, Finalizer’lar ve Dispose Pattern: .NET Geli\u015ftiricileri \u0130\u00e7in Kapsaml\u0131 Rehber<\/h2>\n

.NET platformunda uygulama geli\u015ftirirken, bellek y\u00f6netimi ve kaynak serbest b\u0131rakma konular\u0131, uygulaman\u0131z\u0131n performans\u0131 ve kararl\u0131l\u0131\u011f\u0131 i\u00e7in hayati \u00f6neme sahiptir. \u00d6zellikle y\u00f6netilmeyen kaynaklarla (dosya tan\u0131t\u0131c\u0131lar\u0131, a\u011f ba\u011flant\u0131lar\u0131, veritaban\u0131 ba\u011flant\u0131lar\u0131 gibi) \u00e7al\u0131\u015f\u0131rken, bu kaynaklar\u0131n do\u011fru bir \u015fekilde serbest b\u0131rak\u0131lmamas\u0131 bellek s\u0131z\u0131nt\u0131lar\u0131na, performans d\u00fc\u015f\u00fc\u015flerine ve hatta uygulaman\u0131n \u00e7\u00f6kmesine yol a\u00e7abilir. \u0130\u015fte tam bu noktada IDisposable<\/code> aray\u00fcz\u00fc, Finalizer’lar ve Dispose Pattern devreye girer. Bu makalede, .NET geli\u015ftiricilerinin bu kritik kavramlar\u0131 derinlemesine anlamalar\u0131 ve do\u011fru bir \u015fekilde uygulamalar\u0131 i\u00e7in kapsaml\u0131 bir rehber sunaca\u011f\u0131z.<\/p>\n

Y\u00f6netilmeyen Kaynaklar ve Bellek Y\u00f6netimi<\/h3>\n

.NET’in sundu\u011fu en b\u00fcy\u00fck kolayl\u0131klardan biri, Garbage Collector (\u00c7\u00f6p Toplay\u0131c\u0131 – GC) sayesinde bellek y\u00f6netiminin b\u00fcy\u00fck \u00f6l\u00e7\u00fcde otomatikle\u015ftirilmi\u015f olmas\u0131d\u0131r. Ancak GC’nin de s\u0131n\u0131rlar\u0131 vard\u0131r ve baz\u0131 \u00f6zel durumlar manuel m\u00fcdahale gerektirir.<\/p>\n

Y\u00f6netilen ve Y\u00f6netilmeyen Kaynaklar Aras\u0131ndaki Fark<\/h4>\n

Y\u00f6netilen Kaynaklar:<\/strong> .NET \u00e7al\u0131\u015fma zaman\u0131 (CLR) taraf\u0131ndan y\u00f6netilen ve GC’nin do\u011frudan kontrol\u00fcnde olan kaynaklard\u0131r. Bellekteki nesneler, diziler, string’ler gibi yap\u0131lar bu kategoriye girer. GC, bu nesnelerin art\u0131k kullan\u0131lmad\u0131\u011f\u0131n\u0131 tespit etti\u011finde otomatik olarak belleklerini serbest b\u0131rak\u0131r.<\/p>\n

Y\u00f6netilmeyen Kaynaklar:<\/strong> \u0130\u015fletim sistemi taraf\u0131ndan y\u00f6netilen ve CLR’nin do\u011frudan kontrol\u00fcnde olmayan kaynaklard\u0131r. \u00d6rnek olarak dosya tan\u0131t\u0131c\u0131lar\u0131 (file handles), a\u011f soketleri, veritaban\u0131 ba\u011flant\u0131lar\u0131, grafik kaynaklar\u0131 (GDI+ nesneleri), COM nesneleri ve i\u015faret\u00e7iler (pointers) verilebilir. GC, bu t\u00fcr kaynaklar\u0131 otomatik olarak serbest b\u0131rakamaz.<\/p>\n

Garbage Collector’\u0131n Rol\u00fc ve S\u0131n\u0131rlar\u0131<\/h4>\n

GC, y\u00f6netilen belle\u011fi izler ve art\u0131k referans edilmeyen nesneleri bulup temizler. Bu, geli\u015ftiricilerin bellek s\u0131z\u0131nt\u0131lar\u0131 konusunda daha az endi\u015felenmesini sa\u011flar. Ancak GC, yaln\u0131zca y\u00f6netilen bellek \u00fczerinde \u00e7al\u0131\u015f\u0131r. Bir nesne y\u00f6netilmeyen bir kayna\u011f\u0131 (\u00f6rne\u011fin bir dosya tan\u0131t\u0131c\u0131s\u0131) tutuyorsa, GC bu nesneyi temizledi\u011finde dahi, y\u00f6netilmeyen kaynak i\u015fletim sisteminde hala a\u00e7\u0131k kalabilir. Bu durum, kaynak t\u00fckenmesine yol a\u00e7abilir.<\/p>\n

Neden Manuel Kaynak Y\u00f6netimine \u0130htiya\u00e7 Duyar\u0131z?<\/h4>\n

Y\u00f6netilmeyen kaynaklar\u0131n do\u011fas\u0131 gere\u011fi, GC’nin yetenekleri d\u0131\u015f\u0131nda kal\u0131rlar. Bu kaynaklar\u0131n manuel olarak, m\u00fcmk\u00fcn olan en k\u0131sa s\u00fcrede ve deterministik bir \u015fekilde serbest b\u0131rak\u0131lmas\u0131 gereklidir. Aksi takdirde, uygulaman\u0131z\u0131n performans\u0131nda d\u00fc\u015f\u00fc\u015fler ya\u015fanabilir, di\u011fer uygulamalar\u0131n veya sistemin kaynaklara eri\u015fimi engellenebilir ve uzun vadede istikrars\u0131zl\u0131k sorunlar\u0131 ortaya \u00e7\u0131kabilir.<\/p>\n

Kod \u00d6rne\u011fi: Y\u00f6netilmeyen Bir Kaynak (Dosya Ak\u0131\u015f\u0131)<\/strong><\/p>\n

\nusing System;\nusing System.IO;\n\npublic class DosyaIsleyici\n{\n    private FileStream _fileStream;\n\n    public DosyaIsleyici(string filePath)\n    {\n        \/\/ Y\u00f6netilmeyen bir kaynak olan FileStream olu\u015fturuluyor.\n        _fileStream = new FileStream(filePath, FileMode.OpenOrCreate);\n        Console.WriteLine($\"Dosya '{filePath}' a\u00e7\u0131ld\u0131.\");\n    }\n\n    public void Yaz(string metin)\n    {\n        using (StreamWriter writer = new StreamWriter(_fileStream, leaveOpen: true))\n        {\n            writer.WriteLine(metin);\n        }\n        Console.WriteLine($\"'{metin}' dosyaya yaz\u0131ld\u0131.\");\n    }\n\n    \/\/ Bu s\u0131n\u0131f IDisposable uygulamad\u0131\u011f\u0131 i\u00e7in, _fileStream'in ne zaman kapanaca\u011f\u0131 belirsizdir.\n    \/\/ GC bu nesneyi temizledi\u011finde dahi, FileStream kayna\u011f\u0131 hemen serbest b\u0131rak\u0131lmayabilir.\n}\n\npublic class Program\n{\n    public static void Main(string[] args)\n    {\n        string dosyaAdi = \"ornek.txt\";\n        DosyaIsleyici isleyici = new DosyaIsleyici(dosyaAdi);\n        isleyici.Yaz(\"Merhaba D\u00fcnya!\");\n        \/\/ isleyici nesnesi art\u0131k kullan\u0131lmasa da, _fileStream kayna\u011f\u0131 hala a\u00e7\u0131k kalabilir.\n        \/\/ Bu bir kaynak s\u0131z\u0131nt\u0131s\u0131 potansiyelidir.\n        \/\/ Console.ReadLine(); \/\/ Program\u0131n hemen kapanmas\u0131n\u0131 engellemek i\u00e7in\n    }\n}\n<\/pre>\n
<\/code><\/p>\n
IDisposable Aray\u00fcz\u00fc ve Dispose Metodu<\/h3>\n
Y\u00f6netilmeyen kaynaklar\u0131n deterministik bir \u015fekilde serbest b\u0131rak\u0131lmas\u0131n\u0131 sa\u011flamak i\u00e7in .NET, System.IDisposable<\/code> aray\u00fcz\u00fcn\u00fc sunar. Bu aray\u00fcz, kaynaklar\u0131 temizlemek i\u00e7in standart bir mekanizma sa\u011flar.<\/p>\n
IDisposable Nedir ve Ne Zaman Kullan\u0131l\u0131r?<\/h4>\n
IDisposable<\/code> aray\u00fcz\u00fc, yaln\u0131zca tek bir metot tan\u0131mlar: void Dispose()<\/code>. Bir s\u0131n\u0131f bu aray\u00fcz\u00fc uygulad\u0131\u011f\u0131nda, bu, s\u0131n\u0131f\u0131n y\u00f6netilmeyen kaynaklar\u0131 tuttu\u011funu ve bu kaynaklar\u0131n manuel olarak serbest b\u0131rak\u0131lmas\u0131 gerekti\u011fini belirtir. Geli\u015ftiriciler, IDisposable<\/code> uygulayan bir nesneyi kullanmay\u0131 bitirdiklerinde, Dispose()<\/code> metodunu \u00e7a\u011f\u0131rmal\u0131d\u0131r.<\/p>\n
Kullan\u0131m Senaryolar\u0131:<\/strong><\/p>\n
    \n
  • Dosya ve a\u011f ak\u0131\u015flar\u0131 (FileStream<\/code>, NetworkStream<\/code>)<\/li>\n
  • Veritaban\u0131 ba\u011flant\u0131lar\u0131 (SqlConnection<\/code>, DbContext<\/code>)<\/li>\n
  • Grafik nesneleri (Bitmap<\/code>, Graphics<\/code>)<\/li>\n
  • COM nesneleri ve P\/Invoke ile eri\u015filen yerel kaynaklar<\/li>\n<\/ul>\n
    Dispose() Metodunun Amac\u0131<\/h4>\n
    Dispose()<\/code> metodunun temel amac\u0131, s\u0131n\u0131f\u0131n tuttu\u011fu t\u00fcm y\u00f6netilmeyen kaynaklar\u0131 serbest b\u0131rakmak ve ayr\u0131ca s\u0131n\u0131f\u0131n tuttu\u011fu ve kendileri de IDisposable<\/code> olan di\u011fer y\u00f6netilen kaynaklar\u0131n Dispose()<\/code> metodunu \u00e7a\u011f\u0131rmakt\u0131r. Bu sayede, kaynak hiyerar\u015fisi boyunca temizlik sa\u011flan\u0131r.<\/p>\n
    Using Deyimi ile Otomatik Kaynak Serbest B\u0131rakma<\/h4>\n
    C#, IDisposable<\/code> aray\u00fcz\u00fcn\u00fc uygulayan nesneler i\u00e7in kaynak y\u00f6netimini kolayla\u015ft\u0131ran using<\/code> deyimini sunar. using<\/code> deyimi, bir nesnenin kapsam\u0131 sona erdi\u011finde veya bir istisna f\u0131rlat\u0131ld\u0131\u011f\u0131nda dahi, nesnenin Dispose()<\/code> metodunu otomatik olarak \u00e7a\u011f\u0131r\u0131r. Bu, hem g\u00fcvenli hem de hataya dayan\u0131kl\u0131 bir kaynak y\u00f6netimi sa\u011flar.<\/p>\n
    Kod \u00d6rne\u011fi: IDisposable Uygulayan Bir S\u0131n\u0131f ve using<\/code> Kullan\u0131m\u0131<\/strong><\/p>\n
    \nusing System;\nusing System.IO;\n\n\/\/ IDisposable aray\u00fcz\u00fcn\u00fc uygulayan bir s\u0131n\u0131f\npublic class YonetilenDosyaIsleyici : IDisposable\n{\n    private FileStream _fileStream;\n    private bool _disposed = false; \/\/ Kayna\u011f\u0131n zaten serbest b\u0131rak\u0131l\u0131p b\u0131rak\u0131lmad\u0131\u011f\u0131n\u0131 takip eder\n\n    public YonetilenDosyaIsleyici(string filePath)\n    {\n        _fileStream = new FileStream(filePath, FileMode.OpenOrCreate);\n        Console.WriteLine($\"Dosya '{filePath}' a\u00e7\u0131ld\u0131.\");\n    }\n\n    public void Yaz(string metin)\n    {\n        if (_disposed)\n        {\n            throw new ObjectDisposedException(nameof(YonetilenDosyaIsleyici));\n        }\n        using (StreamWriter writer = new StreamWriter(_fileStream, leaveOpen: true))\n        {\n            writer.WriteLine(metin);\n        }\n        Console.WriteLine($\"'{metin}' dosyaya yaz\u0131ld\u0131.\");\n    }\n\n    \/\/ IDisposable aray\u00fcz\u00fcn\u00fcn Dispose metodu\n    public void Dispose()\n    {\n        \/\/ Dispose pattern'in temelini olu\u015fturan Dispose(bool disposing) metodunu \u00e7a\u011f\u0131r\u0131r.\n        \/\/ 'true' parametresi, bu \u00e7a\u011fr\u0131n\u0131n kullan\u0131c\u0131 taraf\u0131ndan yap\u0131ld\u0131\u011f\u0131n\u0131 (yani deterministik oldu\u011funu) belirtir.\n        Dispose(true);\n        \/\/ GC'nin finalizer'\u0131 \u00e7a\u011f\u0131rmas\u0131n\u0131 engeller.\n        \/\/ Zaten kaynaklar\u0131 temizledi\u011fimiz i\u00e7in finalizer'a gerek kalmaz.\n        GC.SuppressFinalize(this); \n    }\n\n    \/\/ Dispose pattern'in ana metodu\n    protected virtual void Dispose(bool disposing)\n    {\n        if (!_disposed)\n        {\n            if (disposing)\n            {\n                \/\/ Y\u00f6netilen kaynaklar\u0131 serbest b\u0131rak (kendileri de IDisposable olan nesneler)\n                \/\/ Bu \u00f6rnekte sadece _fileStream'i kapat\u0131yoruz.\n                if (_fileStream != null)\n                {\n                    _fileStream.Dispose(); \/\/ FileStream de IDisposable uygular\n                    _fileStream = null;\n                    Console.WriteLine(\"FileStream serbest b\u0131rak\u0131ld\u0131 (y\u00f6netilen kaynak).\");\n                }\n            }\n            \/\/ Y\u00f6netilmeyen kaynaklar\u0131 serbest b\u0131rak (bu \u00f6rnekte yok, FileStream y\u00f6netilen bir nesne olsa da\n            \/\/ temelinde bir i\u015fletim sistemi kayna\u011f\u0131n\u0131 temsil eder ve bu katmanda serbest b\u0131rak\u0131lmal\u0131d\u0131r.)\n            \/\/ \u00d6rne\u011fin, bir P\/Invoke \u00e7a\u011fr\u0131s\u0131 ile elde edilmi\u015f bir handle burada kapat\u0131labilir.\n\n            _disposed = true;\n        }\n    }\n}\n\npublic class Program\n{\n    public static void Main(string[] args)\n    {\n        string dosyaAdi = \"ornek_yonetilen.txt\";\n        \/\/ using deyimi sayesinde Dispose() metodu otomatik olarak \u00e7a\u011fr\u0131l\u0131r.\n        using (YonetilenDosyaIsleyici isleyici = new YonetilenDosyaIsleyici(dosyaAdi))\n        {\n            isleyici.Yaz(\"Merhaba D\u00fcnya, IDisposable ile!\");\n        } \/\/ Kapsam d\u0131\u015f\u0131na \u00e7\u0131k\u0131ld\u0131\u011f\u0131nda veya istisna durumunda Dispose() \u00e7a\u011fr\u0131l\u0131r.\n        Console.WriteLine(\"Dosya i\u015fleyici nesnesi kapsam d\u0131\u015f\u0131na \u00e7\u0131kt\u0131 ve kaynaklar\u0131 serbest b\u0131rak\u0131ld\u0131.\");\n    }\n}\n<\/pre>\n
    <\/code><\/p>\n
    Dispose Pattern'i Uygulamak<\/h3>\n
    IDisposable<\/code> aray\u00fcz\u00fcn\u00fc uygulamak, basit\u00e7e Dispose()<\/code> metodunu tan\u0131mlamakla bitmez. \u00d6zellikle karma\u015f\u0131k s\u0131n\u0131flarda veya miras hiyerar\u015filerinde do\u011fru ve g\u00fcvenli kaynak y\u00f6netimi i\u00e7in standart bir desen olan \"Dispose Pattern\"in uygulanmas\u0131 gerekir.<\/p>\n
    Temel Dispose Pattern Yap\u0131s\u0131<\/h4>\n
    Dispose Pattern'in temel yap\u0131s\u0131, hem kullan\u0131c\u0131 taraf\u0131ndan deterministik olarak \u00e7a\u011fr\u0131lan Dispose()<\/code> metodunu hem de GC taraf\u0131ndan \u00e7a\u011fr\u0131labilecek potansiyel bir finalizer'\u0131 (bir sonraki b\u00f6l\u00fcmde ele al\u0131nacak) dikkate al\u0131r. Bu desen, kaynaklar\u0131n birden fazla kez serbest b\u0131rak\u0131lmas\u0131n\u0131 \u00f6nlemek i\u00e7in bir bayrak (genellikle _disposed<\/code>) kullan\u0131r.<\/p>\n
    Ana fikir, kaynaklar\u0131 serbest b\u0131rakma mant\u0131\u011f\u0131n\u0131 tek bir korumal\u0131 (protected) sanal (virtual) metoda (Dispose(bool disposing)<\/code>) kaps\u00fcllemesidir. Bu metodun disposing<\/code> parametresi, \u00e7a\u011fr\u0131n\u0131n nereden geldi\u011fini belirtir:<\/p>\n
      \n
    • true<\/code>: Kullan\u0131c\u0131 taraf\u0131ndan Dispose()<\/code> metodu \u00e7a\u011fr\u0131ld\u0131. Bu durumda hem y\u00f6netilen hem de y\u00f6netilmeyen kaynaklar serbest b\u0131rak\u0131lmal\u0131d\u0131r.<\/li>\n
    • false<\/code>: Finalizer taraf\u0131ndan \u00e7a\u011fr\u0131ld\u0131. Bu durumda yaln\u0131zca y\u00f6netilmeyen kaynaklar serbest b\u0131rak\u0131lmal\u0131d\u0131r, \u00e7\u00fcnk\u00fc y\u00f6netilen kaynaklar GC taraf\u0131ndan zaten temizlenmi\u015f veya temizlenecektir.<\/li>\n<\/ul>\n
      Dispose(bool disposing)<\/code> Metodunun \u00d6nemi<\/h4>\n
      Bu metodun sanal olmas\u0131, t\u00fcretilmi\u015f s\u0131n\u0131flar\u0131n kendi kaynaklar\u0131n\u0131 temizlemek i\u00e7in bu davran\u0131\u015f\u0131 ge\u00e7ersiz k\u0131labilmesini sa\u011flar. _disposed<\/code> bayra\u011f\u0131, Dispose()<\/code> metodunun birden fazla kez \u00e7a\u011fr\u0131lmas\u0131n\u0131 engeller ve ObjectDisposedException<\/code> f\u0131rlatarak, serbest b\u0131rak\u0131lm\u0131\u015f bir nesnenin kullan\u0131lmas\u0131n\u0131 engeller.<\/p>\n
      T\u00fcretilmi\u015f S\u0131n\u0131flarda Dispose Pattern<\/h4>\n
      Bir temel s\u0131n\u0131f IDisposable<\/code> uyguluyorsa ve t\u00fcretilmi\u015f bir s\u0131n\u0131f da kendi y\u00f6netilmeyen kaynaklar\u0131na sahipse, t\u00fcretilmi\u015f s\u0131n\u0131f\u0131n da IDisposable<\/code> aray\u00fcz\u00fcn\u00fc uygulamas\u0131 ve temel s\u0131n\u0131f\u0131n Dispose(bool disposing)<\/code> metodunu \u00e7a\u011f\u0131rmas\u0131 gerekir. Bu, kaynak hiyerar\u015fisi boyunca do\u011fru temizli\u011fin yap\u0131lmas\u0131n\u0131 sa\u011flar.<\/p>\n
      Kod \u00d6rne\u011fi: Tam Bir Dispose Pattern Implementasyonu<\/strong><\/p>\n
      \nusing System;\nusing System.Runtime.InteropServices; \/\/ Y\u00f6netilmeyen kaynaklar i\u00e7in\n\npublic class OrnekYonetilmeyenKaynak : IDisposable\n{\n    \/\/ \u00d6rnek bir y\u00f6netilmeyen kaynak: Windows API'den al\u0131nan bir handle\n    private IntPtr _nativeHandle; \n    private bool _disposed = false;\n\n    \/\/ Constructor: Y\u00f6netilmeyen kayna\u011f\u0131 edinir\n    public OrnekYonetilmeyenKaynak()\n    {\n        \/\/ Ger\u00e7ek bir senaryoda, burada bir Windows API \u00e7a\u011fr\u0131s\u0131 ile handle al\u0131n\u0131r.\n        \/\/ Basitlik i\u00e7in rastgele bir de\u011fer atayal\u0131m.\n        _nativeHandle = Marshal.AllocHGlobal(128); \/\/ 128 byte bellek ay\u0131r\u0131m\u0131\n        Console.WriteLine($\"Y\u00f6netilmeyen kaynak al\u0131nd\u0131: Handle {_nativeHandle}\");\n    }\n\n    \/\/ Kullan\u0131c\u0131 taraf\u0131ndan \u00e7a\u011fr\u0131lan Dispose metodu\n    public void Dispose()\n    {\n        Dispose(true); \/\/ Hem y\u00f6netilen hem y\u00f6netilmeyen kaynaklar\u0131 temizle\n        GC.SuppressFinalize(this); \/\/ Finalizer'\u0131n tekrar \u00e7al\u0131\u015fmas\u0131n\u0131 engelle\n    }\n\n    \/\/ Dispose Pattern'in ana metodu\n    protected virtual void Dispose(bool disposing)\n    {\n        if (!_disposed)\n        {\n            if (disposing)\n            {\n                \/\/ Managed kaynaklar\u0131 burada serbest b\u0131rak (IDisposable olan nesneler)\n                \/\/ Bu \u00f6rnekte y\u00f6netilen kaynak yok.\n                Console.WriteLine(\"Managed kaynaklar serbest b\u0131rak\u0131l\u0131yor (Dispose \u00e7a\u011fr\u0131s\u0131).\");\n            }\n\n            \/\/ Y\u00f6netilmeyen kaynaklar\u0131 serbest b\u0131rak\n            if (_nativeHandle != IntPtr.Zero)\n            {\n                \/\/ Ger\u00e7ek bir senaryoda, burada ReleaseHandle gibi bir API \u00e7a\u011fr\u0131s\u0131 yap\u0131l\u0131r.\n                Marshal.FreeHGlobal(_nativeHandle); \/\/ Ayr\u0131lan belle\u011fi serbest b\u0131rak\n                _nativeHandle = IntPtr.Zero;\n                Console.WriteLine($\"Y\u00f6netilmeyen kaynak serbest b\u0131rak\u0131ld\u0131: Handle {_nativeHandle}\");\n            }\n\n            _disposed = true;\n        }\n    }\n\n    \/\/ Finalizer (Sonland\u0131r\u0131c\u0131): GC taraf\u0131ndan \u00e7a\u011fr\u0131l\u0131r\n    ~OrnekYonetilmeyenKaynak()\n    {\n        Dispose(false); \/\/ Sadece y\u00f6netilmeyen kaynaklar\u0131 temizle\n        Console.WriteLine(\"Finalizer \u00e7al\u0131\u015ft\u0131.\");\n    }\n\n    \/\/ Kaynak serbest b\u0131rak\u0131ld\u0131ktan sonra kullanmaya \u00e7al\u0131\u015f\u0131rsak hata f\u0131rlat\u0131r\n    public void IslemYap()\n    {\n        if (_disposed)\n        {\n            throw new ObjectDisposedException(nameof(OrnekYonetilmeyenKaynak));\n        }\n        Console.WriteLine($\"Kaynak ile i\u015flem yap\u0131l\u0131yor. Handle: {_nativeHandle}\");\n    }\n}\n\npublic class Program\n{\n    public static void Main(string[] args)\n    {\n        Console.WriteLine(\"--- using ile kullan\u0131m ---\");\n        using (var kaynak = new OrnekYonetilmeyenKaynak())\n        {\n            kaynak.IslemYap();\n        } \/\/ Dispose() otomatik \u00e7a\u011fr\u0131l\u0131r, finalizer'a gerek kalmaz.\n        Console.WriteLine(\"using blo\u011fu bitti.\");\n\n        Console.WriteLine(\"\\n--- using olmadan kullan\u0131m (GC'ye g\u00fcvenme) ---\");\n        OrnekYonetilmeyenKaynak kaynak2 = new OrnekYonetilmeyenKaynak();\n        kaynak2.IslemYap();\n        \/\/ kaynak2.Dispose(); \/\/ E\u011fer bu sat\u0131r unutulursa, finalizer devreye girer (bir s\u00fcre sonra).\n        Console.WriteLine(\"Nesne olu\u015fturuldu, ancak Dispose \u00e7a\u011fr\u0131lmad\u0131. GC'yi bekliyoruz...\");\n        \/\/ GC'yi zorlamak sadece test ama\u00e7l\u0131d\u0131r, \u00fcretim kodunda yap\u0131lmamal\u0131d\u0131r.\n        GC.Collect();\n        GC.WaitForPendingFinalizers(); \/\/ Finalizer'lar\u0131n bitmesini bekle\n        Console.WriteLine(\"GC \u00e7al\u0131\u015ft\u0131 ve finalizer'lar bitti.\");\n    }\n}\n<\/pre>\n
      <\/code><\/p>\n
      Finalizer'lar (Sonland\u0131r\u0131c\u0131lar)<\/h3>\n
      Finalizer'lar, .NET'te y\u00f6netilmeyen kaynaklar\u0131n serbest b\u0131rak\u0131lmas\u0131 i\u00e7in bir \"g\u00fcvenlik a\u011f\u0131\" g\u00f6revi g\u00f6r\u00fcr. Ancak, IDisposable<\/code> ve Dispose Pattern'e g\u00f6re baz\u0131 \u00f6nemli dezavantajlar\u0131 vard\u0131r.<\/p>\n
      Finalizer Nedir ve Nas\u0131l \u00c7al\u0131\u015f\u0131r?<\/h4>\n
      Bir finalizer, bir s\u0131n\u0131f\u0131n y\u0131k\u0131c\u0131s\u0131 (destructor) gibi g\u00f6r\u00fcnen \u00f6zel bir metottur (C++'taki gibi ~ClassName()<\/code>). CLR, bir nesnenin art\u0131k referans edilmedi\u011fini ve GC taraf\u0131ndan toplanaca\u011f\u0131n\u0131 belirledi\u011finde, e\u011fer o nesnenin bir finalizer'\u0131 varsa, GC o nesneyi \u00f6zel bir \"finalization queue\" (sonland\u0131rma kuyru\u011fu) i\u00e7ine yerle\u015ftirir. Ayr\u0131 bir i\u015f par\u00e7ac\u0131\u011f\u0131 (finalizer thread), bu kuyruktaki nesnelerin finalizer'lar\u0131n\u0131 \u00e7al\u0131\u015ft\u0131r\u0131r.<\/p>\n
      Finalizer'lar, bir nesnenin ya\u015fam d\u00f6ng\u00fcs\u00fcn\u00fcn sonunda, GC taraf\u0131ndan \u00e7a\u011fr\u0131lan \u00f6zel metotlard\u0131r. Ama\u00e7lar\u0131, nesne bellekten silinmeden \u00f6nce y\u00f6netilmeyen kaynaklar\u0131 temizlemektir.<\/p>\n
      Finalizer'lar\u0131n Dezavantajlar\u0131 (Performans, Belirsizlik)<\/h4>\n
      Finalizer'lar, deterministik de\u011fildir. Yani, bir nesnenin finalizer'\u0131n\u0131n ne zaman \u00e7al\u0131\u015faca\u011f\u0131 kesin olarak bilinemez. Bu, kaynaklar\u0131n gere\u011finden uzun s\u00fcre me\u015fgul kalmas\u0131na yol a\u00e7abilir. Ayr\u0131ca:<\/p>\n
        \n
      • Performans Maliyeti:<\/strong> Finalizer'\u0131 olan nesneler, GC taraf\u0131ndan iki kez i\u015flenir. \u0130lk olarak, finalization queue'ya eklenirler. \u0130kinci olarak, finalizer \u00e7al\u0131\u015ft\u0131r\u0131ld\u0131ktan sonra GC taraf\u0131ndan temizlenirler. Bu, GC d\u00f6ng\u00fcs\u00fcn\u00fc yava\u015flat\u0131r ve performans\u0131 olumsuz etkiler.<\/li>\n
      • Belirsiz Zamanlama:<\/strong> Finalizer'lar, uygulaman\u0131n kapanmas\u0131 s\u0131ras\u0131nda dahi \u00e7al\u0131\u015fmayabilir. Bu, kritik kaynaklar\u0131n serbest b\u0131rak\u0131lmamas\u0131 riskini ta\u015f\u0131r.<\/li>\n
      • Karma\u015f\u0131kl\u0131k:<\/strong> Finalizer i\u00e7inde ba\u015fka y\u00f6netilen nesneleri kullanmaya \u00e7al\u0131\u015fmak, bu nesnelerin de GC taraf\u0131ndan toplanm\u0131\u015f olabilece\u011fi i\u00e7in hatalara yol a\u00e7abilir.<\/li>\n
      • Kaynak T\u00fckenmesi:<\/strong> Finalizer'lar yeterince h\u0131zl\u0131 \u00e7al\u0131\u015fmazsa, uygulama y\u00f6netilmeyen kaynaklar\u0131 edinmeye devam ederken, bu kaynaklar serbest b\u0131rak\u0131lamad\u0131\u011f\u0131 i\u00e7in sistem kaynaklar\u0131 t\u00fckenebilir.<\/li>\n<\/ul>\n
        Finalizer ve Dispose Pattern Aras\u0131ndaki \u0130li\u015fki<\/h4>\n
        Finalizer'lar, IDisposable<\/code> aray\u00fcz\u00fcn\u00fcn bir \"g\u00fcvenlik a\u011f\u0131\" olarak d\u00fc\u015f\u00fcn\u00fclmelidir. Bir geli\u015ftirici Dispose()<\/code> metodunu \u00e7a\u011f\u0131rmay\u0131 unutursa, finalizer devreye girerek y\u00f6netilmeyen kaynaklar\u0131 temizlemeye \u00e7al\u0131\u015f\u0131r. Ancak, yukar\u0131da belirtilen dezavantajlar\u0131 nedeniyle, finalizer'lar birincil temizleme mekanizmas\u0131 olmamal\u0131d\u0131r. Her zaman Dispose()<\/code> metodunun deterministik olarak \u00e7a\u011fr\u0131lmas\u0131 tercih edilmelidir.<\/p>\n
        Kod \u00d6rne\u011fi: Basit Bir Finalizer<\/strong><\/p>\n
        \nusing System;\n\npublic class FinalizerliNesne\n{\n    private bool _kaynakAcik = true;\n\n    public FinalizerliNesne()\n    {\n        Console.WriteLine(\"FinalizerliNesne olu\u015fturuldu. Kaynak a\u00e7\u0131k.\");\n    }\n\n    \/\/ Finalizer (Y\u0131k\u0131c\u0131)\n    ~FinalizerliNesne()\n    {\n        \/\/ Burada sadece y\u00f6netilmeyen kaynaklar temizlenmelidir.\n        \/\/ Y\u00f6netilen kaynaklar bu a\u015famada zaten toplanm\u0131\u015f olabilir.\n        if (_kaynakAcik)\n        {\n            Console.WriteLine(\"Finalizer \u00e7al\u0131\u015ft\u0131: Y\u00f6netilmeyen kaynak temizleniyor.\");\n            _kaynakAcik = false;\n        }\n    }\n\n    public void Kapat()\n    {\n        if (_kaynakAcik)\n        {\n            Console.WriteLine(\"Kapat() metodu \u00e7a\u011fr\u0131ld\u0131: Kaynak temizleniyor.\");\n            _kaynakAcik = false;\n            \/\/ Burada e\u011fer varsa IDisposable nesnelerin Dispose'lar\u0131 \u00e7a\u011fr\u0131l\u0131r.\n        }\n    }\n}\n\npublic class Program\n{\n    public static void Main(string[] args)\n    {\n        FinalizerliNesne nesne = new FinalizerliNesne();\n        \/\/ nesne.Kapat(); \/\/ E\u011fer bu \u00e7a\u011fr\u0131lmazsa, finalizer devreye girer.\n\n        \/\/ Nesneye referans\u0131 kaybediyoruz, GC toplayabilir.\n        nesne = null; \n\n        Console.WriteLine(\"Nesneye referans kaybedildi. GC'yi bekliyoruz...\");\n        GC.Collect(); \/\/ GC'yi tetiklemek i\u00e7in (sadece test ama\u00e7l\u0131)\n        GC.WaitForPendingFinalizers(); \/\/ Finalizer'lar\u0131n bitmesini bekle\n        Console.WriteLine(\"Program sonu.\");\n    }\n}\n<\/pre>\n
        <\/code><\/p>\n
        Dispose Pattern ve Finalizer Birlikteli\u011fi<\/h3>\n
        En do\u011fru ve g\u00fcvenli kaynak y\u00f6netimi stratejisi, Dispose Pattern'i Finalizer ile birlikte kullanmakt\u0131r. Bu yakla\u015f\u0131m, kaynaklar\u0131n deterministik olarak serbest b\u0131rak\u0131lmas\u0131n\u0131 sa\u011flarken, ayn\u0131 zamanda geli\u015ftiricinin Dispose()<\/code> metodunu \u00e7a\u011f\u0131rmay\u0131 unutmas\u0131 durumunda bir g\u00fcvenlik a\u011f\u0131 sunar.<\/p>\n
        G\u00fcvenli ve Etkin Kaynak Serbest B\u0131rakma Stratejisi<\/h4>\n
        Bu strateji, yukar\u0131da tam Dispose Pattern \u00f6rne\u011finde g\u00f6sterildi\u011fi gibidir:<\/p>\n
          \n
        1. S\u0131n\u0131f IDisposable<\/code> aray\u00fcz\u00fcn\u00fc uygular.<\/li>\n
        2. Dispose()<\/code> metodu, Dispose(bool disposing)<\/code> metodunu true<\/code> parametresiyle \u00e7a\u011f\u0131r\u0131r ve GC.SuppressFinalize(this)<\/code> metodunu \u00e7a\u011f\u0131r\u0131r.<\/li>\n
        3. Dispose(bool disposing)<\/code> metodu, _disposed<\/code> bayra\u011f\u0131n\u0131 kontrol eder ve:\n
            \n
          • disposing<\/code> true<\/code> ise: Hem y\u00f6netilen hem de y\u00f6netilmeyen kaynaklar\u0131 serbest b\u0131rak\u0131r.<\/li>\n
          • disposing<\/code> false<\/code> ise: Sadece y\u00f6netilmeyen kaynaklar\u0131 serbest b\u0131rak\u0131r.<\/li>\n<\/ul>\n<\/li>\n
          • S\u0131n\u0131f\u0131n bir finalizer'\u0131 varsa (~ClassName()<\/code>), bu finalizer Dispose(bool disposing)<\/code> metodunu false<\/code> parametresiyle \u00e7a\u011f\u0131r\u0131r.<\/li>\n<\/ol>\n
            Bu yap\u0131, Dispose()<\/code> \u00e7a\u011fr\u0131ld\u0131\u011f\u0131nda finalizer'\u0131n gereksiz yere \u00e7al\u0131\u015fmas\u0131n\u0131 engeller (performans kazanc\u0131) ve Dispose()<\/code> \u00e7a\u011fr\u0131lmazsa finalizer'\u0131n en az\u0131ndan y\u00f6netilmeyen kaynaklar\u0131 temizlemesini sa\u011flar.<\/p>\n
            GC.SuppressFinalize()<\/code> Kullan\u0131m\u0131<\/h4>\n
            GC.SuppressFinalize(this)<\/code> metodu, bir nesnenin finalizer'\u0131n\u0131n GC taraf\u0131ndan \u00e7a\u011fr\u0131lmas\u0131n\u0131 engeller. Bu, Dispose()<\/code> metodu ba\u015far\u0131yla \u00e7a\u011fr\u0131ld\u0131\u011f\u0131nda ve kaynaklar zaten temizlendi\u011finde yap\u0131l\u0131r. B\u00f6ylece, GC'nin finalizer kuyru\u011funa nesneyi eklemesi ve ayr\u0131 bir i\u015f par\u00e7ac\u0131\u011f\u0131nda finalizer'\u0131 \u00e7al\u0131\u015ft\u0131rmas\u0131 gibi performans maliyetlerinden ka\u00e7\u0131n\u0131lm\u0131\u015f olur. Bu, \"deterministik\" temizli\u011fin bir par\u00e7as\u0131d\u0131r.<\/p>\n
            Ne Zaman Finalizer Kullanmal\u0131y\u0131z?<\/h4>\n
            Finalizer'lar yaln\u0131zca, s\u0131n\u0131f\u0131n\u0131z do\u011frudan y\u00f6netilmeyen kaynaklar\u0131 (\u00f6rne\u011fin, bir i\u015fletim sistemi handle'\u0131, P\/Invoke ile edinilen bellek) tutuyorsa ve bu kaynaklar\u0131n Dispose()<\/code> \u00e7a\u011fr\u0131lmad\u0131\u011f\u0131nda bile serbest b\u0131rak\u0131lmas\u0131n\u0131 sa\u011flamak i\u00e7in bir \"son \u00e7are\" mekanizmas\u0131 olarak kullan\u0131lmal\u0131d\u0131r. E\u011fer s\u0131n\u0131f\u0131n\u0131z sadece ba\u015fka IDisposable<\/code> nesneleri tutuyorsa (\u00f6rne\u011fin bir FileStream<\/code> nesnesi), finalizer'a genellikle gerek yoktur, \u00e7\u00fcnk\u00fc o nesnelerin kendi finalizer'lar\u0131 veya Dispose Pattern'leri olacakt\u0131r.<\/p>\n
            Tablo: IDisposable vs. Finalizer Kar\u015f\u0131la\u015ft\u0131rmas\u0131<\/strong><\/p>\n\n\n\n\n\n\n\n\n\n
            \u00d6zellik<\/th>\nIDisposable (Dispose Pattern)<\/th>\nFinalizer<\/th>\n<\/tr>\n<\/thead>\n
            Zamanlama<\/strong><\/td>\nDeterministik (kullan\u0131c\u0131 taraf\u0131ndan \u00e7a\u011fr\u0131l\u0131r)<\/td>\nNondeterministik (GC taraf\u0131ndan \u00e7a\u011fr\u0131l\u0131r)<\/td>\n<\/tr>\n
            Performans<\/strong><\/td>\nDaha iyi (GC y\u00fck\u00fc az)<\/td>\nDaha k\u00f6t\u00fc (GC y\u00fck\u00fc fazla)<\/td>\n<\/tr>\n
            Kullan\u0131m Alan\u0131<\/strong><\/td>\nHem y\u00f6netilen hem y\u00f6netilmeyen kaynaklar<\/td>\nSadece y\u00f6netilmeyen kaynaklar<\/td>\n<\/tr>\n
            G\u00fcvenlik<\/strong><\/td>\nDaha g\u00fcvenli (kaynaklar hemen serbest)<\/td>\nDaha az g\u00fcvenli (kaynak s\u0131z\u0131nt\u0131s\u0131 riski)<\/td>\n<\/tr>\n
            Gereklilik<\/strong><\/td>\nY\u00f6netilmeyen kaynaklar veya IDisposable tutan s\u0131n\u0131flar i\u00e7in birincil mekanizma<\/td>\nY\u00f6netilmeyen kaynaklar i\u00e7in \"g\u00fcvenlik a\u011f\u0131\"<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
            Yayg\u0131n Hatalar ve En \u0130yi Uygulamalar<\/h3>\n
            IDisposable<\/code> ve Dispose Pattern'i uygularken s\u0131k yap\u0131lan hatalardan ka\u00e7\u0131nmak ve en iyi uygulamalar\u0131 takip etmek, sa\u011flam ve hatas\u0131z uygulamalar geli\u015ftirmenizi sa\u011flar.<\/p>\n
            Dispose Metodunu Birden Fazla \u00c7a\u011f\u0131rmak<\/h4>\n
            Dispose()<\/code> metodu birden fazla kez \u00e7a\u011fr\u0131ld\u0131\u011f\u0131nda sorunlara yol a\u00e7mamal\u0131d\u0131r. Bu nedenle, _disposed<\/code> bayra\u011f\u0131n\u0131 kullanmak ve metodun yaln\u0131zca bir kez \u00e7al\u0131\u015fmas\u0131n\u0131 sa\u011flamak \u00f6nemlidir. \u0130lk \u00e7a\u011fr\u0131dan sonraki \u00e7a\u011fr\u0131lar hi\u00e7bir \u015fey yapmamal\u0131 veya bir ObjectDisposedException<\/code> f\u0131rlatabilir (e\u011fer nesne serbest b\u0131rak\u0131ld\u0131ktan sonra kullan\u0131lmaya \u00e7al\u0131\u015f\u0131l\u0131yorsa).<\/p>\n
            IDisposable Uygulamayan S\u0131n\u0131flar\u0131 Kullan\u0131rken Dikkat Edilmesi Gerekenler<\/h4>\n
            E\u011fer bir s\u0131n\u0131f IDisposable<\/code> uygulam\u0131yorsa, onun y\u00f6netilmeyen kaynaklar\u0131 tutmad\u0131\u011f\u0131 varsay\u0131l\u0131r. Ancak, baz\u0131 k\u00fct\u00fcphaneler veya eski kodlar bu kural\u0131 \u00e7i\u011fneyebilir. Her zaman belgeleme veya kaynak kodu kontrol ederek emin olun. \u015e\u00fcphe durumunda, manuel olarak kaynaklar\u0131 kapatmaya \u00e7al\u0131\u015f\u0131n veya alternatif bir \u00e7\u00f6z\u00fcm aray\u0131n.<\/p>\n
            IDisposable ve Ba\u011f\u0131ml\u0131l\u0131k Enjeksiyonu<\/h4>\n
            Ba\u011f\u0131ml\u0131l\u0131k Enjeksiyonu (DI) konteynerleri, IDisposable<\/code> nesnelerinin ya\u015fam d\u00f6ng\u00fcs\u00fcn\u00fc y\u00f6netmek i\u00e7in genellikle yerle\u015fik mekanizmalara sahiptir. Bir DI konteyneri ile IDisposable<\/code> bir servisi kaydetti\u011finizde, konteyner genellikle uygulaman\u0131n veya ilgili kapsam\u0131n sonuna geldi\u011finde bu servisin Dispose()<\/code> metodunu \u00e7a\u011f\u0131r\u0131r. Bu, \u00f6zellikle web uygulamalar\u0131nda veya uzun \u00f6m\u00fcrl\u00fc servislerde kaynak y\u00f6netimini basitle\u015ftirir.<\/p>\n
            En \u0130yi Uygulamalar Kontrol Listesi<\/h4>\n
              \n
            • Bir s\u0131n\u0131f y\u00f6netilmeyen kaynaklar\u0131 veya ba\u015fka IDisposable<\/code> nesneleri tutuyorsa, IDisposable<\/code> uygulay\u0131n.<\/li>\n
            • Her zaman Dispose Pattern'i tam olarak uygulay\u0131n (Dispose(bool disposing)<\/code> ve iste\u011fe ba\u011fl\u0131 finalizer ile).<\/li>\n
            • using<\/code> deyimini, IDisposable<\/code> nesnelerini kullan\u0131rken tercih edin.<\/li>\n
            • Dispose()<\/code> metodunuzun birden fazla kez \u00e7a\u011fr\u0131ld\u0131\u011f\u0131nda g\u00fcvenli oldu\u011fundan emin olun (_disposed<\/code> bayra\u011f\u0131 ile).<\/li>\n
            • Dispose()<\/code> metodu \u00e7a\u011fr\u0131ld\u0131ktan sonra nesnenin kullan\u0131lmas\u0131n\u0131 engellemek i\u00e7in ObjectDisposedException<\/code> f\u0131rlat\u0131n.<\/li>\n
            • Finalizer'lar\u0131 yaln\u0131zca do\u011frudan y\u00f6netilmeyen kaynaklar\u0131 tutuyorsan\u0131z ve bir \"g\u00fcvenlik a\u011f\u0131\" olarak kullan\u0131n.<\/li>\n
            • Finalizer i\u00e7inde asla y\u00f6netilen nesnelere eri\u015fmeyin, \u00e7\u00fcnk\u00fc bu nesneler zaten toplanm\u0131\u015f olabilir.<\/li>\n
            • Finalizer i\u00e7inde asla istisna f\u0131rlatmay\u0131n, \u00e7\u00fcnk\u00fc bu uygulaman\u0131n \u00e7\u00f6kmesine neden olabilir.<\/li>\n
            • T\u00fcretilmi\u015f s\u0131n\u0131flarda, temel s\u0131n\u0131f\u0131n Dispose(bool disposing)<\/code> metodunu \u00e7a\u011f\u0131rmay\u0131 unutmay\u0131n.<\/li>\n<\/ul>\n
              Sonu\u00e7<\/h3>\n
              IDisposable<\/code> aray\u00fcz\u00fc, Finalizer'lar ve Dispose Pattern, .NET geli\u015ftiricileri i\u00e7in y\u00f6netilmeyen kaynaklar\u0131n etkin ve g\u00fcvenli bir \u015fekilde y\u00f6netilmesini sa\u011flayan temel ara\u00e7lard\u0131r. Bu kavramlar\u0131 do\u011fru bir \u015fekilde anlamak ve uygulamak, uygulaman\u0131z\u0131n performans\u0131n\u0131 art\u0131r\u0131r, bellek s\u0131z\u0131nt\u0131lar\u0131n\u0131 \u00f6nler ve genel kararl\u0131l\u0131\u011f\u0131n\u0131 sa\u011flar. Her ne kadar Garbage Collector bellek y\u00f6netiminin b\u00fcy\u00fck bir k\u0131sm\u0131n\u0131 \u00fcstlense de, y\u00f6netilmeyen kaynaklar s\u00f6z konusu oldu\u011funda geli\u015ftiricinin sorumlulu\u011fu devam eder. Bu rehberde sunulan bilgiler ve kod \u00f6rnekleri sayesinde, .NET uygulamalar\u0131n\u0131zda daha temiz, daha ver<\/p>\n","protected":false},"excerpt":{"rendered":". NET’in sundu\u011fu en b\u00fcy\u00fck kolayl\u0131klardan biri, Garbage Collector (\u00c7\u00f6p Toplay\u0131c\u0131 – GC) sayesinde bellek y\u00f6netiminin b\u00fcy\u00fck \u00f6l\u00e7\u00fcde otomatikle\u015ftirilmi\u015f olmas\u0131d\u0131r.","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"csco_page_header_type":"","csco_page_load_nextpost":"","csco_page_subscribe_form":"","csco_page_contact_form":"","footnotes":""},"categories":[1340],"tags":[],"class_list":{"0":"post-40960","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-net","7":"cs-entry","8":"cs-video-wrap"},"yoast_head":"\nIDisposable, Finalizer'lar ve Dispose Pattern: .NET Geli\u015ftiricileri \u0130\u00e7in Kapsaml\u0131 Rehber - Kodlar\u0131n Gizemli D\u00fcnyas\u0131<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/fatihsoysal.com\/blog\/idisposable-finalizerlar-ve-dispose-pattern-net-gelistiricileri-icin-kapsamli-rehber\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"IDisposable, Finalizer'lar ve Dispose Pattern: .NET Geli\u015ftiricileri \u0130\u00e7in Kapsaml\u0131 Rehber\" \/>\n<meta property=\"og:description\" content=\". 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