private static async Task PlanPartySequentially()
{
Console.WriteLine("I'm planning a party!");
var partyStatus = new PartyStatus();
var timer = Stopwatch.StartNew();
partyStatus.InvitesSent = await SendInvites();
partyStatus.FoodCost = await OrderFood();
partyStatus.IsHouseClean = await CleanHouse();
Console.WriteLine($"Elapsed time: {timer.ElapsedMilliseconds}ms");
}
private static async Task PlanPartyConcurrentlyFewerAwaits()
{
Console.WriteLine("Now I'm planning one with helpers working concurrently (again)!");
var partyStatus = new PartyStatus();
var timer = Stopwatch.StartNew();
var sendInvites = SendInvites();
var orderFood = OrderFood();
var cleanHouse = CleanHouse();
await Task.WhenAll(sendInvites, orderFood, cleanHouse);
partyStatus.InvitesSent = sendInvites.Result;
partyStatus.FoodCost = orderFood.Result;
partyStatus.IsHouseClean = cleanHouse.Result;
Console.WriteLine($"Elapsed time: {timer.ElapsedMilliseconds}ms");
}
private static async Task PlanPartyConcurrentlyWithoutWhenAll()
{
Console.WriteLine("Now I'm planning one with helpers working concurrently (no WhenAll)!");
var partyStatus = new PartyStatus();
var timer = Stopwatch.StartNew();
// kicks off all 3 tasks
var sendInvites = SendInvites();
var orderFood = OrderFood();
var cleanHouse = CleanHouse();
// waits for all 3 to complete
partyStatus.InvitesSent = await sendInvites;
partyStatus.FoodCost = await orderFood;
partyStatus.IsHouseClean = await cleanHouse;
Console.WriteLine($"Elapsed time: {timer.ElapsedMilliseconds}ms");
}