/// <summary>
/// Allocate a counter to represent the snapshot services should load on start.
/// </summary>
/// <param name="aeron"> to allocate the counter. </param>
/// <param name="tempBuffer"> to use for building the key and label without allocation. </param>
/// <param name="leadershipTermId"> at which the snapshot was taken. </param>
/// <param name="termPosition"> at which the snapshot was taken. </param>
/// <param name="timestamp"> the snapshot was taken. </param>
/// <param name="replayTermCount"> for the count of terms to be replayed during recovery after snapshot. </param>
/// <returns> the <seealso cref="Counter"/> for the consensus position. </returns>
public static Counter Allocate(Aeron.Aeron aeron, IMutableDirectBuffer tempBuffer, long termPosition, long leadershipTermId, long timestamp, int replayTermCount)
{
tempBuffer.PutLong(LEADERSHIP_TERM_ID_OFFSET, leadershipTermId);
tempBuffer.PutLong(TERM_POSITION_OFFSET, termPosition);
tempBuffer.PutLong(TIMESTAMP_OFFSET, timestamp);
tempBuffer.PutInt(REPLAY_TERM_COUNT_OFFSET, replayTermCount);
int labelOffset = 0;
labelOffset += tempBuffer.PutStringWithoutLengthAscii(KEY_LENGTH + labelOffset, NAME);
labelOffset += tempBuffer.PutLongAscii(KEY_LENGTH + labelOffset, leadershipTermId);
labelOffset += tempBuffer.PutStringWithoutLengthAscii(KEY_LENGTH + labelOffset, " termPosition=");
labelOffset += tempBuffer.PutLongAscii(KEY_LENGTH + labelOffset, termPosition);
labelOffset += tempBuffer.PutStringWithoutLengthAscii(KEY_LENGTH + labelOffset, " replayTermCount=");
labelOffset += tempBuffer.PutIntAscii(KEY_LENGTH + labelOffset, replayTermCount);
return(aeron.AddCounter(RECOVERY_STATE_TYPE_ID, tempBuffer, 0, KEY_LENGTH, tempBuffer, KEY_LENGTH, labelOffset));
}
/// <summary>
/// Allocate a counter to represent the snapshot services should load on start.
/// </summary>
/// <param name="aeron"> to allocate the counter. </param>
/// <param name="tempBuffer"> to use for building the key and label without allocation. </param>
/// <param name="leadershipTermId"> at which the snapshot was taken. </param>
/// <param name="logPosition"> at which the snapshot was taken. </param>
/// <param name="timestamp"> the snapshot was taken. </param>
/// <param name="hasReplay"> flag is true if all or part of the log must be replayed. </param>
/// <param name="snapshotRecordingIds"> for the services to use during recovery indexed by service id. </param>
/// <returns> the <seealso cref="Counter"/> for the recovery state. </returns>
public static Counter Allocate(
Aeron.Aeron aeron,
IMutableDirectBuffer tempBuffer,
long leadershipTermId,
long logPosition,
long timestamp,
bool hasReplay,
params long[] snapshotRecordingIds)
{
tempBuffer.PutLong(LEADERSHIP_TERM_ID_OFFSET, leadershipTermId);
tempBuffer.PutLong(LOG_POSITION_OFFSET, logPosition);
tempBuffer.PutLong(TIMESTAMP_OFFSET, timestamp);
tempBuffer.PutInt(REPLAY_FLAG_OFFSET, hasReplay ? 1 : 0);
int serviceCount = snapshotRecordingIds.Length;
tempBuffer.PutInt(SERVICE_COUNT_OFFSET, serviceCount);
int keyLength = SNAPSHOT_RECORDING_IDS_OFFSET + (serviceCount * BitUtil.SIZE_OF_LONG);
int maxRecordingIdsLength = SNAPSHOT_RECORDING_IDS_OFFSET + (serviceCount * BitUtil.SIZE_OF_LONG);
if (maxRecordingIdsLength > CountersReader.MAX_KEY_LENGTH)
{
throw new ClusterException(maxRecordingIdsLength + " execeeds max key length " + CountersReader.MAX_KEY_LENGTH);
}
for (int i = 0; i < serviceCount; i++)
{
tempBuffer.PutLong(SNAPSHOT_RECORDING_IDS_OFFSET + (i * BitUtil.SIZE_OF_LONG), snapshotRecordingIds[i]);
}
int labelOffset = 0;
labelOffset += tempBuffer.PutStringWithoutLengthAscii(keyLength + labelOffset, NAME);
labelOffset += tempBuffer.PutLongAscii(keyLength + labelOffset, leadershipTermId);
labelOffset += tempBuffer.PutStringWithoutLengthAscii(keyLength + labelOffset, " logPosition=");
labelOffset += tempBuffer.PutLongAscii(keyLength + labelOffset, logPosition);
labelOffset += tempBuffer.PutStringWithoutLengthAscii(keyLength + labelOffset, " hasReplay=" + hasReplay);
return(aeron.AddCounter(RECOVERY_STATE_TYPE_ID, tempBuffer, 0, keyLength, tempBuffer, keyLength, labelOffset));
}
/// <summary>
/// Allocate a counter to represent the commit position on stream for the current leadership term.
/// </summary>
/// <param name="aeron"> to allocate the counter. </param>
/// <param name="tempBuffer"> to use for building the key and label without allocation. </param>
/// <param name="recordingId"> for the current term. </param>
/// <param name="logPosition"> of the log at the beginning of the leadership term. </param>
/// <param name="leadershipTermId"> of the log at the beginning of the leadership term. </param>
/// <param name="sessionId"> of the active log for the current leadership term. </param>
/// <returns> the <seealso cref="Counter"/> for the consensus position. </returns>
public static Counter Allocate(Aeron.Aeron aeron, IMutableDirectBuffer tempBuffer, long recordingId, long logPosition, long leadershipTermId, int sessionId)
{
tempBuffer.PutLong(RECORDING_ID_OFFSET, recordingId);
tempBuffer.PutLong(LOG_POSITION_OFFSET, logPosition);
tempBuffer.PutLong(LEADERSHIP_TERM_ID_OFFSET, leadershipTermId);
tempBuffer.PutInt(SESSION_ID_OFFSET, sessionId);
int labelOffset = 0;
labelOffset += tempBuffer.PutStringWithoutLengthAscii(KEY_LENGTH + labelOffset, NAME);
labelOffset += tempBuffer.PutLongAscii(KEY_LENGTH + labelOffset, leadershipTermId);
labelOffset += tempBuffer.PutStringWithoutLengthAscii(KEY_LENGTH + labelOffset, " logSessionId=");
labelOffset += tempBuffer.PutIntAscii(KEY_LENGTH + labelOffset, sessionId);
return(aeron.AddCounter(COMMIT_POSITION_TYPE_ID, tempBuffer, 0, KEY_LENGTH, tempBuffer, KEY_LENGTH, labelOffset));
}
public static int AllocateCounterId(
IMutableDirectBuffer tempBuffer,
string name,
int typeId,
CountersManager countersManager,
long registrationId)
{
tempBuffer.PutLong(REGISTRATION_ID_OFFSET, registrationId);
int keyLength = REGISTRATION_ID_OFFSET + BitUtil.SIZE_OF_LONG;
int labelLength = 0;
labelLength += tempBuffer.PutStringWithoutLengthAscii(keyLength + labelLength, name);
labelLength += tempBuffer.PutStringWithoutLengthAscii(keyLength + labelLength, ": ");
labelLength += tempBuffer.PutLongAscii(keyLength + labelLength, registrationId);
return(countersManager.Allocate(typeId, tempBuffer, 0, keyLength, tempBuffer, keyLength, labelLength));
}
/// <summary>
/// Allocate a counter to represent the commit position on stream for the current leadership term.
/// </summary>
/// <param name="aeron"> to allocate the counter. </param>
/// <param name="tempBuffer"> to use for building the key and label without allocation. </param>
/// <param name="leadershipTermId"> of the log at the beginning of the leadership term. </param>
/// <param name="termBaseLogPosition"> of the log at the beginning of the leadership term. </param>
/// <param name="leadershipTermLength"> length in bytes of the leadership term for the log. </param>
/// <returns> the <seealso cref="Counter"/> for the commit position. </returns>
public static Counter Allocate(
Aeron.Aeron aeron,
IMutableDirectBuffer tempBuffer,
long leadershipTermId,
long termBaseLogPosition,
long leadershipTermLength)
{
tempBuffer.PutLong(LEADERSHIP_TERM_ID_OFFSET, leadershipTermId);
tempBuffer.PutLong(TERM_BASE_LOG_POSITION_OFFSET, termBaseLogPosition);
tempBuffer.PutLong(LEADERSHIP_TERM_LENGTH_OFFSET, leadershipTermLength);
int labelOffset = 0;
labelOffset += tempBuffer.PutStringWithoutLengthAscii(KEY_LENGTH + labelOffset, NAME);
labelOffset += tempBuffer.PutLongAscii(KEY_LENGTH + labelOffset, leadershipTermId);
return(aeron.AddCounter(COMMIT_POSITION_TYPE_ID, tempBuffer, 0, KEY_LENGTH, tempBuffer, KEY_LENGTH, labelOffset));
}
/// <summary>
/// Allocate a counter to represent the commit position on stream for the current leadership term.
/// </summary>
/// <param name="aeron"> to allocate the counter. </param>
/// <param name="tempBuffer"> to use for building the key and label without allocation. </param>
/// <param name="leadershipTermId"> of the log at the beginning of the leadership term. </param>
/// <param name="logPosition"> of the log at the beginning of the leadership term. </param>
/// <param name="maxLogPosition"> length in bytes of the leadership term for the log. </param>
/// <returns> the <seealso cref="Counter"/> for the commit position. </returns>
public static Counter Allocate(
Aeron.Aeron aeron,
IMutableDirectBuffer tempBuffer,
long leadershipTermId,
long logPosition,
long maxLogPosition)
{
tempBuffer.PutLong(LEADERSHIP_TERM_ID_OFFSET, leadershipTermId);
tempBuffer.PutLong(LOG_POSITION_OFFSET, logPosition);
tempBuffer.PutLong(MAX_LOG_POSITION_OFFSET, maxLogPosition);
int labelOffset = BitUtil.Align(KEY_LENGTH, BitUtil.SIZE_OF_INT);
int labelLength = 0;
labelLength += tempBuffer.PutStringWithoutLengthAscii(labelOffset + labelLength, NAME);
labelLength += tempBuffer.PutLongAscii(labelOffset + labelLength, leadershipTermId);
return(aeron.AddCounter(COMMIT_POSITION_TYPE_ID, tempBuffer, 0, KEY_LENGTH, tempBuffer, labelOffset, labelLength));
}