private static void ConcurrentCollectionsExample()
{
CDictionary stock = new CDictionary();
int stockValue;
//Try add
var result = stock.TryAdd("Simpsons", 5);
Console.WriteLine($"Tried to add 5 Simpsons tshirts with result:{result}");
Console.WriteLine($"Add the same tshirt again");
result = stock.TryAdd("Simpsons", 2);
Console.WriteLine($"Tried to add 2 Simpsons tshirts with result:{result}");
//Try Update
result = stock.TryUpdate("Simpsons", 5, 6);
Console.WriteLine($"Tried to update Simpsons tshirts (5 of stock), with a new value of 6 with result {result}");
result = stock.TryUpdate("Simpsons", 7, 6);
Console.WriteLine($"Tried to update Simpsons tshirts (5 of stock) sending 7 instead, with a new value of 6 with result {result}");
//TryGet
result = stock.TryGet("Simpsons", out stockValue);
Console.WriteLine($"Get value for simpsons occured with result {result} and the value is {stockValue}");
//Add or Update -> try to update the value, if key it's not present add it
var updatedStock = stock.AddOrUpdate("Simpsons", 3);
Console.WriteLine($"Tried to increment Simpsons tshirts (5 of stock) with a new value of {updatedStock}");
updatedStock = stock.AddOrUpdate("Family Guy", 10);
Console.WriteLine($"Tried to increment Simpsons tshirts (5 of stock) with a new value of {updatedStock}");
//Get or Add -> try and get the value. if key not present add it
stockValue = stock.GetOrAdd("Family Guy", 0);
Console.WriteLine($"Get the value of {stockValue} for tshirt Family Guy");
//Try Remove
result = stock.TryRemove("Simpsons", out stockValue);
Console.WriteLine($"Tried to remove remove Simpsons tshirts wich had {stockValue} of stock with result {result}");
result = stock.TryRemove("Simpsons", out stockValue);
Console.WriteLine($"Tried to remove remove Simpsons tshirts wich had {stockValue} of stock with result {result}");
//Concurrent Queue
CQueue queue = new CQueue();
queue.Enqueue("Simpsons");
queue.Enqueue("FamilyGuy");
queue.Enqueue("StarWars");
string shirt;
result = queue.TryPeek(out shirt);
if (result)
{
Console.WriteLine($"The item at the front of the queue is {shirt}");
}
else
{
Console.WriteLine($"Error peeking. Pervert?");
}
result = queue.TryDequeue(out shirt);
if (result)
{
Console.WriteLine($"The item dequeued is {shirt}");
}
else
{
Console.WriteLine($"Error peeking. Pervert?");
}
result = queue.TryPeek(out shirt);
if (result)
{
Console.WriteLine($"The item at the front of the queue (after dequeue) is {shirt}");
}
else
{
Console.WriteLine($"Error peeking. Pervert?");
}
//Concurrent Stack
CStack stack = new CStack();
stack.Push("Simpsons");
stack.Push("FamilyGuy");
stack.Push("StarWars");
result = stack.TryPeek(out shirt);
if (result)
{
Console.WriteLine($"The item at the Top of the stack is {shirt}");
}
else
{
Console.WriteLine($"Error peeking. Pervert?");
}
result = stack.TryPop(out shirt);
if (result)
{
Console.WriteLine($"The item poped is {shirt}");
}
else
{
Console.WriteLine($"Error peeking. Pervert?");
}
result = stack.TryPeek(out shirt);
if (result)
{
Console.WriteLine($"The item at the Top of the stack (after Pop) is {shirt}");
}
else
{
Console.WriteLine($"Error peeking. Pervert?");
}
//ConcurrentBag No garanties for the order of put and take. In single thread it tends to have the same beahaviour of stack. It is
//used if the same thread does multiple add and remove. in that case it is more efficient.
CBag bag = new CBag();
bag.Push("Simpsons");
bag.Push("FamilyGuy");
bag.Push("StarWars");
result = bag.TryPeek(out shirt);
if (result)
{
Console.WriteLine($"The item peeked is {shirt}");
}
else
{
Console.WriteLine($"Error peeking. Pervert?");
}
result = bag.TryPop(out shirt);
if (result)
{
Console.WriteLine($"The item poped is {shirt}");
}
else
{
Console.WriteLine($"Error peeking. Pervert?");
}
result = bag.TryPeek(out shirt);
if (result)
{
Console.WriteLine($"The item at the Top of the stack (after Pop) is {shirt}");
}
else
{
Console.WriteLine($"Error peeking. Pervert?");
}
}