public IBufferRegistration GetBuffer()
{
// this blocks until a buffer is free
guard.Wait();
// can now get buffer so make sure we're the only thread manipulating
// the list of buffers
lock (buffers)
{
IBufferRegistration freeBuffer = null;
// look for a free buffer
foreach (LOHBuffer buffer in buffers)
{
if (!buffer.InUse)
{
buffer.InUse = true;
freeBuffer = new BufferReservation(this, buffer);
}
}
// no free buffer so allocate a new one
if (freeBuffer == null)
{
var buffer = new LOHBuffer();
buffer.InUse = true;
buffers.Add(buffer);
freeBuffer = new BufferReservation(this, buffer);
}
return(freeBuffer);
}
}
public IBufferRegistration GetBuffer()
{
guard.Wait();
// can get buffer
lock (buffers)
{
IBufferRegistration freeBuffer = null;
foreach (LOHBuffer buffer in buffers)
{
if (!buffer.InUse)
{
buffer.InUse = true;
freeBuffer = new BufferReservation(this, buffer);
}
}
if (freeBuffer == null)
{
var buffer = new LOHBuffer();
buffer.InUse = true;
buffers.Add(buffer);
freeBuffer = new BufferReservation(this, buffer);
}
return(freeBuffer);
}
}
static void Main(string[] args)
{
var pool = new BufferPool(2);
IBufferRegistration reg = pool.GetBuffer();
Task.Factory.StartNew(() =>
{
IBufferRegistration reg2 = pool.GetBuffer();
Console.WriteLine("task got buffer");
});
Console.WriteLine("press enter to dispose reg");
Console.ReadLine();
reg.Dispose();
Console.ReadLine();
}