public static async Task <Egg> FryEggsAsync(int howMany)
{
Console.WriteLine("Warming the egg pan...");
await Task.Delay(3000);
Console.WriteLine($"cracking {howMany} eggs");
Console.WriteLine("cooking the eggs ...");
await Task.Delay(3000);
Console.WriteLine("Put eggs on plate");
Egg egg = new Egg();
egg.wasCalled = true;
return(egg);
}
static async Task Main(string[] args)
{
Coffee cup = Coffee.PourCoffee();
Console.WriteLine("coffee is ready");
var eggsTask = Egg.FryEggsAsync(2);
var baconTask = Bacon.FryBaconAsync(3);
var toastTask = Toast.MakeToastWithButterAndJamAsync(2);
var breakfastTasks = new List <Task> {
eggsTask, baconTask, toastTask
};
while (breakfastTasks.Count > 0)
{
Task finishedTask = await Task.WhenAny(breakfastTasks);
if (finishedTask == eggsTask)
{
Console.WriteLine("eggs are ready");
}
else if (finishedTask == baconTask)
{
Console.WriteLine("bacon is ready");
}
else if (finishedTask == toastTask)
{
Console.WriteLine("toast is ready");
}
breakfastTasks.Remove(finishedTask);
}
Juice oj = Juice.PourOJ();
Console.WriteLine("oj is ready");
Console.WriteLine("Breakfast is ready!");
Console.ReadKey();
}
// <SnippetMain>
static async Task Main(string[] args)
{
Coffee cup = PourCoffee();
Console.WriteLine("coffee is ready");
Egg eggs = await FryEggs(2);
Console.WriteLine("eggs are ready");
Bacon bacon = await FryBacon(3);
Console.WriteLine("bacon is ready");
Toast toast = await ToastBread(2);
ApplyButter(toast);
ApplyJam(toast);
Console.WriteLine("toast is ready");
Juice oj = PourOJ();
Console.WriteLine("oj is ready");
Console.WriteLine("Breakfast is ready!");
}
static async Task Main2(string[] args)
{
Console.WriteLine("SYNCHRONOUS METHOD CALLS");
Coffee cup = new Coffee();
Egg eggs = new Egg();
Bacon bacon = new Bacon();
Toast toast = new Toast();
Juice oj = new Juice();
//cup = PourCoffee();
//Console.WriteLine("coffee is ready");
//eggs = FryEggs(2);
//Console.WriteLine("eggs are ready");
//bacon = FryBacon(3);
//Console.WriteLine("bacon is ready");
//toast = ToastBread(2);
//ApplyButter(toast);
//ApplyJam(toast);
//Console.WriteLine("toast is ready");
//oj = PourOJ();
//Console.WriteLine("oj is ready");
//Console.WriteLine("Breakfast is ready!");
Console.WriteLine("------------------------------");
Console.WriteLine("A-SYNCHRONOUS METHOD CALLS");
cup = PourCoffee();
Console.WriteLine("coffee is ready");
Task <Egg> eggsTask = FryEggsAsync(2);
Task <Bacon> baconTask = FryBaconAsync(3);
Task <Toast> toastTask = MakeToastWithButterAndJamAsync(2); // composition of async methods
// changed to MakeToastWithButterAndJamAsync => composition of async functions
//toast = await toastTask;
//ApplyButter(toast);
//ApplyJam(toast);
oj = PourOJ();
Console.WriteLine("oj is ready");
//best way => putting all the tasks in the list and checking which one done
//by using Task.WhenAny methods and removing from the list
var breakfastTasks = new List <Task> {
eggsTask, baconTask, toastTask
};
while (breakfastTasks.Count() > 0)
{
var completedTask = await Task.WhenAny(breakfastTasks);
if (completedTask == eggsTask)
{
Console.WriteLine("eggs are ready");
}
if (completedTask == baconTask)
{
Console.WriteLine("bacon is ready");
}
if (completedTask == toastTask)
{
Console.WriteLine("toast is ready");
}
breakfastTasks.Remove(completedTask);
}
//instead of listing all the await task statements
//await Task.WhenAll(eggsTask, baconTask, toastTask);
//changed to WhenAll method
//eggs = await eggsTask;
//Console.WriteLine("eggs are ready");
//bacon = await baconTask;
//Console.WriteLine("bacon is ready");
//toast = await toastTask;
//Console.WriteLine("toast is ready");
Console.WriteLine("Breakfast is ready!");
}
