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(Go) Async Accept Socket ConnectionDemonstrates how to get the connected client socket after accepting a connection asynchronously.
// This example assumes the Chilkat Socket API to have been previously unlocked. // See Socket Unlock Sample for sample code. listenSocket := chilkat.NewSocket() // Bind to a port and listen. // This example will listen at port 5555 and allows for a backlog // of 25 pending connection requests. success := listenSocket.BindAndListen(5555,25) if success != true { fmt.Println(listenSocket.LastErrorText()) listenSocket.DisposeSocket() return } // Start a background task to accept an incoming connection ... maxWaitMs := 20000 c := make(chan *chilkat.Task) go listenSocket.AcceptNextConnectionAsync(maxWaitMs,c) acceptTask := <-c // ... // ... // ... // Imagine at this point the task has completed successfully, // and a connection was accepted. Here's how to get the connected socket... connectedClient := chilkat.NewSocket() success = connectedClient.LoadTaskResult(acceptTask) // Here's how it works: The AcceptNextConnection method would normally // return a socket object when called synchronously. When called asynchronously, // it cannot do so because it returns the task object. When the async method // (running in a background thread) completes, the socket object that is the client // connection is contained within the task object. // // This can be generalized for any case where a Chilkat method returns an object. // The async version of that method is such that the object returned in the background // thread is contained within the task object. // To get the result object, we create a new object instance of that type. // In this case, we create a socket object (connectedClient). There is a LoadTaskResult // method in all Chilkat classes that can be a return value of an async method call. // The LoadTaskResult method transfers the returned object from the task to the caller. listenSocket.DisposeSocket() acceptTask.DisposeTask() connectedClient.DisposeSocket() |
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