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(C++) Get the LastErrorText for an Asynchronous Method CallSee more Async ExamplesDemonstrates how to get the LastErrorText information for a Chilkat method called asynchronously.
#include <CkSocket.h> #include <CkTask.h> void ChilkatSample(void) { // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. CkSocket socket; // The Async call simply creates the task. The "Connect" method has not yet been called. int maxWaitMs = 5000; // Let's intentionally cause this connect to fail by giving it an invalid domain.. CkTask *task = socket.ConnectAsync("amazonbladflakjsdflksadjf.com",443,true,maxWaitMs); if (socket.get_LastMethodSuccess() == false) { std::cout << socket.lastErrorText() << "\r\n"; return; } // Start the background thread to run the task. bool success = task->Run(); if (!success) { std::cout << task->lastErrorText() << "\r\n"; delete task; return; } // The application is now free to do anything else // For this example, we'll simply sleep and periodically // check to see if the Socket Connect if finished. while (task->get_Finished() != true) { // Sleep 1 ms. task->SleepMs(1); } // If the task completed, it means the method (in this case the Connect method) was called and returned success or failure. if (task->get_StatusInt() != 7) { std::cout << "Task did not complete." << "\r\n"; std::cout << "task status: " << task->status() << "\r\n"; delete task; return; } // Get the success/failure of the Connect // (This is the return value of the Connect method had it been called synchronously) success = task->GetResultBool(); if (success == false) { // Get the LastErrorText for the Connect method call. // Had we called Connect synchronously, we would've simply accessed the socket object's LastErrorText property. // Instead, we get the task object's ResultErrorText. std::cout << task->resultErrorText() << "\r\n"; } else { std::cout << "Connect succeeded." << "\r\n"; } delete task; } |
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