public void RingBuffer_SingleItemPush()
{
var rb = new SingleConsumerRingBuffer <long>(3);
long item = 910;
Assert.True(rb.TryPush(ref item));
Assert.True(rb.TryPush(ref item));
Assert.True(rb.TryPush(ref item));
Assert.True(rb.TryPush(ref item));
Assert.False(rb.TryPush(ref item));
var span = rb.Acquire();
Assert.Equal(4, span.Length);
Assert.Equal(910, span[0].Item);
Assert.Equal(910, span[1].Item);
Assert.Equal(910, span[2].Item);
Assert.Equal(910, span[3].Item);
item = 911;
Assert.False(rb.TryPush(ref item));
rb.Release();
Assert.True(rb.TryPush(ref item));
span = rb.Acquire();
Assert.Equal(1, span.Length);
Assert.Equal(911, span[0].Item);
rb.Release();
}
public void RingBuffer_MultipleAcquires_SingleRelease()
{
var rb = new SingleConsumerRingBuffer <long>(4);
long item = 910;
Assert.True(rb.TryPush(ref item));
Assert.True(rb.TryPush(ref item));
var span = rb.Acquire();
Assert.Equal(2, span.Length);
Assert.Equal(910, span[0].Item);
Assert.Equal(910, span[1].Item);
item = 911;
Assert.True(rb.TryPush(ref item));
Assert.True(rb.TryPush(ref item));
span = rb.Acquire();
Assert.Equal(2, span.Length);
Assert.Equal(911, span[0].Item);
Assert.Equal(911, span[1].Item);
item = 912;
Assert.False(rb.TryPush(ref item));
rb.Release();
item = 912;
Assert.True(rb.TryPush(ref item));
}
public bool Dequeue(out T entry)
{
if (_buffer.TryAcquireSingle(out RingItem <T> item))
{
entry = item.Item;
_buffer.Release();
return(true);
}
entry = default(T);
return(false);
}
public void RingBuffer_MultipleItemsSingleAcquirePush()
{
var rb = new SingleConsumerRingBuffer <long>(4);
long item = 910;
Assert.True(rb.TryPush(ref item));
item = 911;
Assert.True(rb.TryPush(ref item));
RingItem <long> ringItem;
Assert.True(rb.TryAcquireSingle(out ringItem));
Assert.Equal(910, ringItem.Item);
Assert.True(rb.TryAcquireSingle(out ringItem));
Assert.Equal(911, ringItem.Item);
item = 912;
Assert.True(rb.TryPush(ref item));
Assert.True(rb.TryPush(ref item));
Assert.False(rb.TryPush(ref item));
rb.Release();
item = 913;
Assert.True(rb.TryPush(ref item));
Assert.True(rb.TryAcquireSingle(out ringItem));
Assert.Equal(912, ringItem.Item);
Assert.True(rb.TryAcquireSingle(out ringItem));
Assert.Equal(912, ringItem.Item);
rb.Release();
Assert.True(rb.TryAcquireSingle(out ringItem));
Assert.Equal(913, ringItem.Item);
rb.Release();
}