c# - Where do I handle asynchronous exceptions? -

-

निम्नलिखित कोड पर विचार करें: 

  class Foo {// उबाऊ भागों निजी TcpClient सॉकेट छोड़े गए ; सार्वजनिक शून्य कनेक्ट () {socket.BeginConnect (होस्ट, पोर्ट, नए एसिंक कॉलबैक (cbConnect), quux); } निजी शून्य cbConnect (IAsyncResult परिणाम) {// blah}}

यदि सॉकेट के बाद एक अपवाद फेंकता है आरंभ करें कनेक्ट वापस और < कोड> सीबीकनेक्ट कहलाता है, वह कहां पॉप अप करता है? क्या यह भी पृष्ठभूमि में फेंकने की इजाजत है?

एसेनच प्रतिनिधि के लिए अपवाद हैंडलिंग का कोड नमूना मैं समझता हूं कि TcpClient पैटर्न के समान होगा। 

  सिस्टम का उपयोग कर; सिस्टम का उपयोग करें। समय। Remoting.Messaging; कक्षा कार्यक्रम {स्थैतिक शून्य मुख्य (स्ट्रिंग [] आर्ग्स) {नया प्रोग्राम ()। चलाएँ (); Console.ReadLine (); } शून्य भागो () {कार्रवाई का उदाहरण = नया एक्शन (लड़ी पिरोया); IAsyncResult ia = उदाहरण.बीजिनइनवोक (नया एसिंक कॉलबैक (पूर्ण), रिक्त); // विकल्प # 1: / * ia.AsyncWaitHandle.WaitOne (); कोशिश {example.EndInvoke (ia); } पकड़ (अपवाद पूर्व) {Console.WriteLine (ex.Message); } * /} शून्य थ्रेडेड () {नया अनुप्रयोग एक्सेप्शन ("कबुम"); } शून्य पूर्ण (IAsyncResult एआर) {// विकल्प # 2: एक्शन उदाहरण = (एशिनक्रसल्ट के रूप में ए.आर.)। एसिंनकैलिगेट एक्शन के रूप में; कोशिश {example.EndInvoke (एआर); } पकड़ (अपवाद पूर्व) {Console.WriteLine (ex.Message); }}}
पर क्लिक करें

Comments

Post a Comment

Popular posts from this blog

php - Login to icq account to receive messages from contact #12345678 -

-
What's the way php-script is running, which does the following: - Enter the icq-account - Received Existing contacts are all messages (if any) from # 12345678 and - write those messages in an array such as $ Messages = array (); Edit I like to answer: "Blaee" is a good, active community, it is often updated because ICQ changes its internal changes Let's see: The first result of that: This class can be used to communicate with other ICQ consumers. This can: Non-interception with an ICQ server Authenticate as a given user Get offline message Send and receive messages (...) I would say that code Looking for you.
Read more

windows - Heroku throws SQLITE3 Read only exception -

-
After I deploy the app to Heroku, I have to run migration scripts and get this error message ... ITES \ padrino \ prophetmargin & gt; Heroku Rack AR: Rack mutated! SQLite3 :: ReadOnlyException: only one try to write database to read: CREATE TABLE "schema_migrations" ( "version" varchar (255) NOT NULL) /disk1/home/slugs/215264_925fd2c_65a3/mnt/.bundle/gems/gems/ padrino-core- is 0.9.11 / lib / padrino-core / cli / rake.rb: 9: in `init ' how can this be? I also tried to run Heroku dbpush SQLite: //db/my-db.db and that did not work Horoku sqlite3 but using postgres does not do. I'm not sure why you are receiving this error, however, as I have used sqlite3 in development and when pushing it into its travel, they do some magic which migrates to postgrads. I'm absolutely sure how Heroku does 'backwash' this database but it seems that this is happening to you because it's the SQLite db file which is obviously due to Heroku's...
Read more