private void Release(LOHBuffer buffer)
{
// flag buffer as no longer in use and release the semaphore
// to allow more requests into the pool
buffer.InUse = false;
guard.Release();
}
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 BufferReservation(BufferPool pool, LOHBuffer buffer)
{
this.pool = pool;
this.buffer = buffer;
}