coroutine

What are coroutines in c++20 ? In what ways it is different from "Parallelism2" or/and "Concurrency2" (look into below image)? The below image is from ISOCPP. https://isocpp.org/files/img/wg21-timeline-2017-03.png At an abstract level, Coroutines split the idea of having an execution state off of the idea of having a thread of execution. SIMD (single instruction multiple data) has multiple "threads of execution" but only one execution state (it just works on multiple data). Arguably parallel algorithms are a bit like this, in that you have one "program" run on different data. Threading has

I'm creating a Pop up menu Option in Unity. Now my Problem here is that the coroutine i made in void update is being called so many times. What i mean by that is on my Unity Console the Debug.Logs are incrementing . It should not right because its already coroutine. Could some help me understand more coroutine and help me solve my little problem . Here is my code: [SerializeField] GameObject Option; [SerializeField] Button btn,btn2; [SerializeField] GameObject open, close; [SerializeField] GameObject[] opt; bool startFinding = false; void Start() { Option.SetActive(false); Button popUp = btn

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I have a 3 second countdown timer which is activated when game is unpaused. I had it working correctly a couple of days ago but now it doesn't work anymore. It gets blocked on the number 3. This is the code: IEnumerator Timer() { Time.timeScale = 0; objectWithGSScript.scoreText.fontSize = 300; objectWithGSScript.scoreText.text = "" + 3; yield return WaitOneSecond(); objectWithGSScript.scoreText.text = "" + 2; yield return WaitOneSecond(); objectWithGSScript.scoreText.text = "" + 1; yield return WaitOneSecond(); objectWithGSScript.scoreText.text = "Go!"; yield return WaitOneSecond(); Time

I have an Object that gets replaced by thousands of little cubes at once, which then begin moving one after another after initialization. I have code that works, but when I try to refactor it to clean it up, it stops working. The cubes dont move. This happens when I try to separate the Variable Initialisation and the Movement Initialisation. So this is my original code segment and it works: public class WallCreation : MonoBehaviour { public Transform wallSegmentPrefab; GameObject oldWall; Vector3 oldWallSize; int oldWallsizeX; int oldWallsizeY; int oldWallsizeZ; Vector3 oldWallPosition;

I'm new to the concept of non-blocking IO, and there is something i'm having trouble understanding - about coroutines. consider this code: class UserPostHandler(RequestHandler): @gen.coroutine def get(self): var = 'some variable' data = json.loads(self.request.body) yield motor_db.users.insert({self.request.remote_ip: data})#asynch non blocking db insert call #success self.set_status(201) print var when the get function is called, it creates the string var . what happens to this variable when the function waits for the motor.insert to complete? To my understanding "non blocking" implies that

In Python, asynchronous generator functions are coroutines, and generator functions are also coroutines. What are the differences between the purposes of generator functions and asynchronous generator functions? Thanks. The purpose of PEP 525 -- Asynchronous Generators is pretty much similar to PEP 255 -- Simple Generators which introduced generators. It is mainly intented to make things easier to implement, only in a different domain (asynchronous one). From PEP 525: Essentially, the goals and rationale for PEP 255, applied to the asynchronous execution case, hold true for this proposal as