| public static CeilingNextPowerOfTwo ( this x ) : int | ||
| x | this | Value to round up |
| 리턴 | int | |
/// <summary>
/// Construct a RingBuffer with the full option set.
/// </summary>
/// <param name="entryFactory"> entryFactory to create instances of T for filling the RingBuffer</param>
/// <param name="size">size of the RingBuffer that will be rounded up to the next power of 2</param>
/// <param name="claimStrategyOption"> threading strategy for producers claiming entries in the ring.</param>
/// <param name="waitStrategyOption">waiting strategy employed by consumers waiting on entries becoming available.</param>
public RingBuffer(Func <T> entryFactory, int size, ClaimStrategyFactory.ClaimStrategyOption claimStrategyOption = ClaimStrategyFactory.ClaimStrategyOption.Multithreaded, WaitStrategyFactory.WaitStrategyOption waitStrategyOption = WaitStrategyFactory.WaitStrategyOption.Blocking)
{
_claimStrategyOption = claimStrategyOption;
var sizeAsPowerOfTwo = Util.CeilingNextPowerOfTwo(size);
_ringModMask = sizeAsPowerOfTwo - 1;
_entries = new Entry <T> [sizeAsPowerOfTwo];
_claimStrategy = ClaimStrategyFactory.GetInstance(claimStrategyOption);
_waitStrategy = WaitStrategyFactory.GetInstance(waitStrategyOption);
Fill(entryFactory);
}
public RingBuffer(IEntryFactory <T> entryFactory,
int size,
IClaimStrategy claimStrategyOption,
IWaitStrategy <T> waitStrategyOption)
{
int sizeAsPowerOfTwo = Util.CeilingNextPowerOfTwo(size);
_ringModMask = sizeAsPowerOfTwo - 1;
_entries = new T[sizeAsPowerOfTwo];
_entryFactory = entryFactory;
_claimStrategy = claimStrategyOption;
_waitStrategy = waitStrategyOption;
Fill();
}
/// <summary>
/// Construct a RingBuffer with the full option set.
/// </summary>
/// <param name="eventFactory">eventFactory to create entries for filling the RingBuffer</param>
/// <param name="claimStrategy">threading strategy for publisher claiming entries in the ring.</param>
/// <param name="waitStrategy">waiting strategy employed by processorsToTrack waiting on entries becoming available.</param>
public RingBuffer(Func <T> eventFactory, IClaimStrategy claimStrategy, IWaitStrategy waitStrategy)
: base(claimStrategy, waitStrategy)
{
if (Util.CeilingNextPowerOfTwo(claimStrategy.BufferSize) != claimStrategy.BufferSize)
{
throw new ArgumentException("bufferSize must be a power of 2");
}
_indexMask = claimStrategy.BufferSize - 1;
_entries = new T[claimStrategy.BufferSize];
for (int i = 0; i < _entries.Length; i++)
{
_entries[i] = eventFactory();
}
}