internal ConcurrentPublication(
ClientConductor clientConductor,
string channel,
int streamId,
int sessionId,
IReadablePosition positionLimit,
int channelStatusId,
LogBuffers logBuffers,
long originalRegistrationId,
long registrationId)
: base(
clientConductor,
channel,
streamId,
sessionId,
positionLimit,
channelStatusId,
logBuffers,
originalRegistrationId,
registrationId
)
{
var buffers = logBuffers.DuplicateTermBuffers();
for (var i = 0; i < LogBufferDescriptor.PARTITION_COUNT; i++)
{
_termAppenders[i] = new TermAppender(buffers[i], _logMetaDataBuffer, i);
}
}
internal Publication(
ClientConductor clientConductor,
string channel,
int streamId,
int sessionId,
IReadablePosition positionLimit,
int channelStatusId,
LogBuffers logBuffers,
long originalRegistrationId,
long registrationId)
{
_logMetaDataBuffer = logBuffers.MetaDataBuffer();
TermBufferLength = logBuffers.TermLength();
MaxMessageLength = FrameDescriptor.ComputeMaxMessageLength(TermBufferLength);
MaxPayloadLength = LogBufferDescriptor.MtuLength(_logMetaDataBuffer) - DataHeaderFlyweight.HEADER_LENGTH;
_maxPossiblePosition = TermBufferLength * (1L << 31);
_conductor = clientConductor;
Channel = channel;
StreamId = streamId;
SessionId = sessionId;
InitialTermId = LogBufferDescriptor.InitialTermId(_logMetaDataBuffer);
_originalRegistrationId = originalRegistrationId;
RegistrationId = registrationId;
_positionLimit = positionLimit;
_channelStatusId = channelStatusId;
_logBuffers = logBuffers;
PositionBitsToShift = LogBufferDescriptor.PositionBitsToShift(TermBufferLength);
_headerWriter = new HeaderWriter(LogBufferDescriptor.DefaultFrameHeader(_logMetaDataBuffer));
}
internal Publication(ClientConductor clientConductor, string channel, int streamId, int sessionId, IReadablePosition positionLimit, LogBuffers logBuffers, long registrationId)
{
var buffers = logBuffers.AtomicBuffers();
var logMetaDataBuffer = buffers[LogBufferDescriptor.LOG_META_DATA_SECTION_INDEX];
for (var i = 0; i < LogBufferDescriptor.PARTITION_COUNT; i++)
{
_termAppenders[i] = new TermAppender(buffers[i], buffers[i + LogBufferDescriptor.PARTITION_COUNT]);
}
var termLength = logBuffers.TermLength();
_maxPayloadLength = LogBufferDescriptor.MtuLength(logMetaDataBuffer) - DataHeaderFlyweight.HEADER_LENGTH;
MaxMessageLength = FrameDescriptor.ComputeMaxMessageLength(termLength);
_clientConductor = clientConductor;
Channel = channel;
StreamId = streamId;
SessionId = sessionId;
InitialTermId = LogBufferDescriptor.InitialTermId(logMetaDataBuffer);
_logMetaDataBuffer = logMetaDataBuffer;
RegistrationId = registrationId;
_positionLimit = positionLimit;
_logBuffers = logBuffers;
_positionBitsToShift = IntUtil.NumberOfTrailingZeros(termLength);
_headerWriter = new HeaderWriter(LogBufferDescriptor.DefaultFrameHeader(logMetaDataBuffer));
}
internal virtual void ReleaseLogBuffers(LogBuffers logBuffers, long registrationId)
{
if (logBuffers.DecRef() == 0)
{
logBuffers.TimeOfLastStateChange(_nanoClock.NanoTime());
_logBuffersByIdMap.Remove(registrationId);
_lingeringResources.Add(logBuffers);
}
}
internal void ReleaseLogBuffers(LogBuffers logBuffers, long registrationId)
{
if (logBuffers.DecRef() == 0)
{
logBuffers.LingerDeadlineNs(_nanoClock.NanoTime() + _ctx.ResourceLingerDurationNs());
_logBuffersByIdMap.Remove(registrationId);
_lingeringLogBuffers.Add(logBuffers);
}
}
private LogBuffers LogBuffers(long registrationId, string logFileName)
{
LogBuffers logBuffers = _logBuffersByIdMap[registrationId];
if (null == logBuffers)
{
logBuffers = _logBuffersFactory.Map(logFileName);
_logBuffersByIdMap[registrationId] = logBuffers;
}
logBuffers.IncRef();
return(logBuffers);
}
internal ExclusivePublication(
ClientConductor clientConductor,
string channel,
int streamId,
int sessionId,
IReadablePosition positionLimit,
LogBuffers logBuffers,
long originalRegistrationId,
long registrationId)
{
var buffers = logBuffers.TermBuffers();
var logMetaDataBuffer = logBuffers.MetaDataBuffer();
for (var i = 0; i < LogBufferDescriptor.PARTITION_COUNT; i++)
{
_termAppenders[i] = new ExclusiveTermAppender(buffers[i], logMetaDataBuffer, i);
}
var termLength = logBuffers.TermLength();
_termBufferLength = termLength;
MaxPayloadLength = LogBufferDescriptor.MtuLength(logMetaDataBuffer) - DataHeaderFlyweight.HEADER_LENGTH;
MaxMessageLength = FrameDescriptor.ComputeExclusiveMaxMessageLength(termLength);
_maxPossiblePosition = termLength * (1L << 31);
_conductor = clientConductor;
Channel = channel;
StreamId = streamId;
SessionId = sessionId;
_logMetaDataBuffer = logMetaDataBuffer;
_originalRegistrationId = originalRegistrationId;
RegistrationId = registrationId;
_positionLimit = positionLimit;
_logBuffers = logBuffers;
_positionBitsToShift = IntUtil.NumberOfTrailingZeros(termLength);
_headerWriter = new HeaderWriter(LogBufferDescriptor.DefaultFrameHeader(logMetaDataBuffer));
InitialTermId = LogBufferDescriptor.InitialTermId(logMetaDataBuffer);
var activeIndex = LogBufferDescriptor.ActivePartitionIndex(logMetaDataBuffer);
_activePartitionIndex = activeIndex;
long rawTail = LogBufferDescriptor.RawTail(_logMetaDataBuffer, activeIndex);
_termId = LogBufferDescriptor.TermId(rawTail);
_termOffset = LogBufferDescriptor.TermOffset(rawTail, termLength);
_termBeginPosition =
LogBufferDescriptor.ComputeTermBeginPosition(_termId, _positionBitsToShift, InitialTermId);
}
private int CheckLingeringResources(long nowNs)
{
int workCount = 0;
for (int lastIndex = _lingeringLogBuffers.Count - 1, i = lastIndex; i >= 0; i--)
{
LogBuffers logBuffers = _lingeringLogBuffers[i];
if (logBuffers.LingerDeadlineNs() - nowNs < 0)
{
ListUtil.FastUnorderedRemove(_lingeringLogBuffers, i, lastIndex--);
CloseHelper.Dispose(_ctx.ErrorHandler(), logBuffers);
workCount += 1;
}
}
return(workCount);
}
/// <summary>
/// Construct a new image over a log to represent a stream of messages from a <seealso cref="Publication"/>.
/// </summary>
/// <param name="subscription"> to which this <seealso cref="Image"/> belongs. </param>
/// <param name="sessionId"> of the stream of messages. </param>
/// <param name="subscriberPosition"> for indicating the position of the subscriber in the stream. </param>
/// <param name="logBuffers"> containing the stream of messages. </param>
/// <param name="errorHandler"> to be called if an error occurs when polling for messages. </param>
/// <param name="sourceIdentity"> of the source sending the stream of messages. </param>
/// <param name="correlationId"> of the request to the media driver. </param>
public Image(Subscription subscription, int sessionId, IPosition subscriberPosition, LogBuffers logBuffers, ErrorHandler errorHandler, string sourceIdentity, long correlationId)
{
Subscription = subscription;
SessionId = sessionId;
_subscriberPosition = subscriberPosition;
_logBuffers = logBuffers;
_errorHandler = errorHandler;
SourceIdentity = sourceIdentity;
CorrelationId = correlationId;
_termBuffers = logBuffers.TermBuffers();
var termLength = logBuffers.TermLength();
_termLengthMask = termLength - 1;
_positionBitsToShift = IntUtil.NumberOfTrailingZeros(termLength);
_header = new Header(LogBufferDescriptor.InitialTermId(logBuffers.MetaDataBuffer()), _positionBitsToShift);
}
private LogBuffers LogBuffers(long registrationId, string logFileName, String channel)
{
LogBuffers logBuffers = _logBuffersByIdMap[registrationId];
if (null == logBuffers)
{
logBuffers = _logBuffersFactory.Map(logFileName);
_logBuffersByIdMap[registrationId] = logBuffers;
if (_ctx.PreTouchMappedMemory() && !channel.Contains("sparse=true"))
{
logBuffers.PreTouch();
}
}
logBuffers.IncRef();
return(logBuffers);
}
internal ExclusivePublication(
ClientConductor clientConductor,
string channel,
int streamId,
int sessionId,
IReadablePosition positionLimit,
int channelStatusId,
LogBuffers logBuffers,
long originalRegistrationId,
long registrationId)
: base(
clientConductor,
channel,
streamId,
sessionId,
positionLimit,
channelStatusId,
logBuffers,
originalRegistrationId,
registrationId,
FrameDescriptor.ComputeExclusiveMaxMessageLength(logBuffers.TermLength())
)
{
var buffers = logBuffers.DuplicateTermBuffers();
var logMetaDataBuffer = logBuffers.MetaDataBuffer();
for (var i = 0; i < LogBufferDescriptor.PARTITION_COUNT; i++)
{
_termAppenders[i] = new ExclusiveTermAppender(buffers[i], logMetaDataBuffer, i);
}
var termCount = LogBufferDescriptor.ActiveTermCount(logMetaDataBuffer);
var index = LogBufferDescriptor.IndexByTermCount(termCount);
_activePartitionIndex = index;
var rawTail = LogBufferDescriptor.RawTail(_logMetaDataBuffer, index);
_termId = LogBufferDescriptor.TermId(rawTail);
_termOffset = LogBufferDescriptor.TermOffset(rawTail);
_termBeginPosition =
LogBufferDescriptor.ComputeTermBeginPosition(_termId, _positionBitsToShift, InitialTermId);
}
private LogBuffers LogBuffers(long registrationId, string logFileName)
{
LogBuffers logBuffers = _logBuffersByIdMap[registrationId];
if (null == logBuffers)
{
logBuffers = _logBuffersFactory.Map(logFileName);
_logBuffersByIdMap[registrationId] = logBuffers;
if (_ctx.PreTouchMappedMemory())
{
logBuffers.PreTouch();
}
}
logBuffers.IncRef();
return(logBuffers);
}
/// <summary>
/// Construct a new image over a log to represent a stream of messages from a <seealso cref="Publication"/>.
/// </summary>
/// <param name="subscription"> to which this <seealso cref="Image"/> belongs. </param>
/// <param name="sessionId"> of the stream of messages. </param>
/// <param name="subscriberPosition"> for indicating the position of the subscriber in the stream. </param>
/// <param name="logBuffers"> containing the stream of messages. </param>
/// <param name="errorHandler"> to be called if an error occurs when polling for messages. </param>
/// <param name="sourceIdentity"> of the source sending the stream of messages. </param>
/// <param name="correlationId"> of the request to the media driver. </param>
public Image(Subscription subscription, int sessionId, IPosition subscriberPosition, LogBuffers logBuffers, ErrorHandler errorHandler, string sourceIdentity, long correlationId)
{
Subscription = subscription;
SessionId = sessionId;
_subscriberPosition = subscriberPosition;
_logBuffers = logBuffers;
_errorHandler = errorHandler;
SourceIdentity = sourceIdentity;
CorrelationId = correlationId;
_joinPosition = subscriberPosition.Get();
_termBuffers = logBuffers.DuplicateTermBuffers();
var termLength = logBuffers.TermLength();
_termLengthMask = termLength - 1;
_positionBitsToShift = LogBufferDescriptor.PositionBitsToShift(termLength);
_initialTermId = LogBufferDescriptor.InitialTermId(logBuffers.MetaDataBuffer());
_header = new Header(LogBufferDescriptor.InitialTermId(logBuffers.MetaDataBuffer()), _positionBitsToShift, this);
}
/// <summary>
/// Construct a new image over a log to represent a stream of messages from a <seealso cref="Publication"/>.
/// </summary>
/// <param name="subscription"> to which this <seealso cref="Image"/> belongs. </param>
/// <param name="sessionId"> of the stream of messages. </param>
/// <param name="subscriberPosition"> for indicating the position of the subscriber in the stream. </param>
/// <param name="logBuffers"> containing the stream of messages. </param>
/// <param name="errorHandler"> to be called if an error occurs when polling for messages. </param>
/// <param name="sourceIdentity"> of the source sending the stream of messages. </param>
/// <param name="correlationId"> of the request to the media driver. </param>
public Image(Subscription subscription, int sessionId, IPosition subscriberPosition, LogBuffers logBuffers, ErrorHandler errorHandler, string sourceIdentity, long correlationId)
{
Subscription = subscription;
SessionId = sessionId;
_subscriberPosition = subscriberPosition;
_logBuffers = logBuffers;
_errorHandler = errorHandler;
SourceIdentity = sourceIdentity;
CorrelationId = correlationId;
var buffers = logBuffers.AtomicBuffers();
Array.Copy(buffers, 0, _termBuffers, 0, LogBufferDescriptor.PARTITION_COUNT);
var termLength = logBuffers.TermLength();
_termLengthMask = termLength - 1;
_positionBitsToShift = IntUtil.NumberOfTrailingZeros(termLength);
_header = new Header(LogBufferDescriptor.InitialTermId(buffers[LogBufferDescriptor.LOG_META_DATA_SECTION_INDEX]), _positionBitsToShift);
}
