/// <summary>
/// Allocates a message in a block and returns the block the message is in.
/// </summary>
/// <returns>The cached message block which the message was allocated in.</returns>
public CachedMessageBlock AllocateMessage(CachedMessage message)
{
CachedMessageBlock returnBlock = currentMessageBlock ?? (currentMessageBlock = messagePool.Allocate());
returnBlock.Add(message);
// blocks at capacity are eligable for purge, so we don't want to be holding on to them.
if (!currentMessageBlock.HasCapacity)
{
currentMessageBlock = messagePool.Allocate();
}
return(returnBlock);
}
private void AddAndCheck(CachedMessageBlock <TestCachedMessage> block, ICacheDataAdapter <TestQueueMessage, TestCachedMessage> dataAdapter, TestQueueMessage message, int first, int last)
{
Assert.Equal(first, block.OldestMessageIndex);
Assert.Equal(last, block.NewestMessageIndex);
Assert.True(block.HasCapacity);
block.Add(message, DateTime.UtcNow, dataAdapter);
last++;
Assert.Equal(first > last, block.IsEmpty);
Assert.Equal(last + 1 < TestBlockSize, block.HasCapacity);
Assert.Equal(first, block.OldestMessageIndex);
Assert.Equal(last, block.NewestMessageIndex);
Assert.True(block.GetSequenceToken(last, dataAdapter).Equals(message.SequenceToken));
}
private void AddAndCheck(CachedMessageBlock <TestQueueMessage, TestCachedMessage> block, TestQueueMessage message, int first, int last)
{
Assert.AreEqual(first, block.OldestMessageIndex);
Assert.AreEqual(last, block.NewestMessageIndex);
Assert.IsTrue(block.HasCapacity);
block.Add(message);
last++;
Assert.AreEqual(first > last, block.IsEmpty);
Assert.AreEqual(last + 1 < TestBlockSize, block.HasCapacity);
Assert.AreEqual(first, block.OldestMessageIndex);
Assert.AreEqual(last, block.NewestMessageIndex);
Assert.IsTrue(block.GetSequenceToken(last).Equals(message.SequenceToken));
}
