/// <summary>
/// Check the version of the CnC file is compatible with application.
/// </summary>
/// <param name="cncVersion"> of the CnC file. </param>
/// <exception cref="AeronException"> if the major versions are not compatible. </exception>
public static void CheckVersion(int cncVersion)
{
if (SemanticVersion.Major(CNC_VERSION) != SemanticVersion.Major(cncVersion))
{
throw new AeronException("CnC version not compatible:" + " app=" + SemanticVersion.ToString(CNC_VERSION) + " file=" + SemanticVersion.ToString(cncVersion));
}
}
public ClusterMarkFile(DirectoryInfo directory, string filename, IEpochClock epochClock, long timeoutMs,
Action <string> logger)
{
markFile = new MarkFile(
directory,
filename,
MarkFileHeaderDecoder.VersionEncodingOffset(),
MarkFileHeaderDecoder.ActivityTimestampEncodingOffset(),
timeoutMs,
epochClock,
(version) =>
{
if (SemanticVersion.Major(version) != AeronCluster.Configuration.MAJOR_VERSION)
{
throw new ArgumentException("mark file major version " + SemanticVersion.Major(version) +
" does not match software:" + AeronCluster.Configuration.MAJOR_VERSION);
}
},
logger);
buffer = markFile.Buffer();
headerDecoder.Wrap(buffer, 0, MarkFileHeaderDecoder.BLOCK_LENGTH, MarkFileHeaderDecoder.SCHEMA_VERSION);
errorBuffer = new UnsafeBuffer(buffer, headerDecoder.HeaderLength(), headerDecoder.ErrorBufferLength());
}
public ClusterMarkFile(
FileInfo file,
ClusterComponentType type,
int errorBufferLength,
IEpochClock epochClock,
long timeoutMs)
{
var markFileExists = file.Exists;
markFile = new MarkFile(
file,
markFileExists,
MarkFileHeaderDecoder.VersionEncodingOffset(),
MarkFileHeaderDecoder.ActivityTimestampEncodingOffset(),
HEADER_LENGTH + errorBufferLength,
timeoutMs,
epochClock,
(version) =>
{
if (VERSION_FAILED == version && markFileExists)
{
Console.WriteLine("mark file version -1 indicates error on previous startup.");
}
else if (SemanticVersion.Major(version) != AeronCluster.Configuration.MAJOR_VERSION)
{
throw new ArgumentException("mark file major version " + SemanticVersion.Major(version) +
" does not match software:" + AeronCluster.Configuration.MAJOR_VERSION);
}
},
null);
buffer = markFile.Buffer();
errorBuffer = new UnsafeBuffer(buffer, HEADER_LENGTH, errorBufferLength);
headerEncoder.Wrap(buffer, 0);
headerDecoder.Wrap(buffer, 0, MarkFileHeaderDecoder.BLOCK_LENGTH, MarkFileHeaderDecoder.SCHEMA_VERSION);
if (markFileExists)
{
var existingErrorBuffer = new UnsafeBuffer(
buffer, headerDecoder.HeaderLength(), headerDecoder.ErrorBufferLength());
SaveExistingErrors(file, existingErrorBuffer, Console.Error);
errorBuffer.SetMemory(0, errorBufferLength, 0);
}
else
{
headerEncoder.CandidateTermId(Aeron.Aeron.NULL_VALUE);
}
var existingType = headerDecoder.ComponentType();
if (existingType != ClusterComponentType.NULL && existingType != type)
{
if (existingType != ClusterComponentType.BACKUP || ClusterComponentType.CONSENSUS_MODULE != type)
{
throw new InvalidOperationException(
"existing Mark file type " + existingType + " not same as required type " + type);
}
}
headerEncoder.ComponentType(type);
headerEncoder.HeaderLength(HEADER_LENGTH);
headerEncoder.ErrorBufferLength(errorBufferLength);
headerEncoder.Pid(Process.GetCurrentProcess().Id);
headerEncoder.StartTimestamp(epochClock.Time());
}
