task

问题 how do I convert this sequential recursive algorithm into a parallel recursive algorithm using tasks? public static List<int> s = new List<int>(); // random integers, array size is n public static List<int> p = new List<int>(); // random integers, array size is n public static int n = 100; public static int w = 10; static void Main(string[] args) { G1(n, w) } private static int G1(int k, int r) { if (k == 0 || r == 0) { return 0; } if (s[k - 1] > r) { return G1(k - 1, r); } return Math.Max(G1

问题 I am encrypting a file asynchronously,and after that I want to run a void to do some logic on the encrypted file. I want the compiler wait until the file has been encrypted completely. So how can I wait for it to be completed? Have I to use "Task"? Thanks. public static async void AES_Encrypt(string path, string Password,Label lbl,ProgressBar prgBar) { byte[] encryptedBytes = null; FileStream fsIn = new FileStream (path, FileMode.Open); byte[] passwordBytes = Encoding.UTF8.GetBytes (Password)

问题 I am trying to make my code faster by using tasks (Parallel.foreach). Here is my updated code: int intImageW, intImageH; Bitmap bmpDest = new Bitmap(1, 1); DateTime creationTime, lastWriteTime, lastAccessTime; Parallel.ForEach(strarrFileList, strJPGImagePath => { creationTime = File.GetCreationTime(strJPGImagePath); lastWriteTime = File.GetLastWriteTime(strJPGImagePath); lastAccessTime = File.GetLastAccessTime(strJPGImagePath); using (Bitmap bmpOrig = new Bitmap(strJPGImagePath)) { intImageW

问题 I am trying to work in this code for weeks. I need to convert rows and columns in a 2d array to blocks. it should work on any matrix in size n*n. (that I have been given the size of the array) for example: this: int[][] input = {{1,2,3,4,5,6,7,8,9}, {1,2,3,4,5,6,7,8,9}, {1,2,3,4,5,6,7,8,9}, {1,2,3,4,5,6,7,8,9}, {1,2,3,4,5,6,7,8,9}, {1,2,3,4,5,6,7,8,9}, {1,2,3,4,5,6,7,8,9}, {1,2,3,4,5,6,7,8,9}, {1,2,3,4,5,6,7,8,9}} ; this is need to be the output: {{1,2,3,1,2,3,1,2,3} {4,5,6,4,5,6,4,5,6} {7,8

问题 My GAE application should upload several files to another server (with urlfetch usage). How to implement this with tasks with assumption that at the end of last task completion I should perform one more action? How can I know when the last task is completed? Upd . Is the following approach with Tasks correct? class Accumulator(db.Model): counter = db.IntegerProperty() def increase_counter(key): obj = db.get(key) obj.counter += 1 obj.put() def zero_counter(key): obj = db.get(key) obj.counter =

问题 I am successfully creating a Task using the SalesForce API SOAP API through Java. However, my problem is that I can't seem to set the Type of it. They all default to "Call" but I really want them to be "Email". Can someone point me in the direction of where I can do this? I think it is to do with RecordTypeMapping, but i am somewhat confused as to how to use this in my Java code to look up the particular one for Task type. I feel I have got so close with this. I have the correct WSDL that is

问题 I have a Gantt Chart with 5 tasks. Each task is divided into 3 sub-tasks. I need to define different color for each sub-task, e.g. Sub-task1: "light blue", Sub-task2: "blue", Sub-task3: "dark blue". I tried to google some examples, but I didn't find any full working example. Thanks. Update#1: I'm using IntervalCategoryDataset for the dataset. IntervalCategoryDataset dataset = createDataset(data); final Task t = new Task("Resource " + i, date(time11), date(time14)); t.addSubtask(new Task(

问题 I have defined the following Task var t = Task.Factory.StartNew( () => LongRunningMethod( cancellationToken ), cancellationToken ); t.ContinueWith( Callback, cancellationToken, TaskContinuationOptions.None, TaskScheduler.FromCurrentSynchronizationContext() ); Inside the LongRunningMethod , I check if the cancellation token has a cancellation requested, and if so, I return from the method. That much works fine. However, the Callback does not get called in this scenario. The callback does get

问题 Say I have a set of tasks: var task1 = DoThisAsync(...); var task2 = DoThatAsync(...); var task3 = DoOtherAsync(...); var taskN... I am looking for a way to process a set of tasks in order (determined by place in containing collection say), but to have the tasks only run/start when its their turn and not before - and have all of that wrapped up in its own task. Problem constraints / details are: These tasks need to be performed in a certain order i.e.task1, task2,... The previous task must

问题 Nowadays some says it is not suitable to use Platform.runLater() for updating the UI from a non-JavaFX Thread and Oracle site introduce a way with bindings for progress bar updating. Here I want to update a Label, so coded it like this: Task task = new Task() { @Override protected Object call() throws Exception { int i = 0; while (true) { this.updateMessage("Count " + i); System.out.println(i); // Thread.sleep(10); i++; } } }; Thread t = new Thread(task); lbStatus.textProperty().bind(task