public void Modify(ModifyHeaderAction modifyAction)
{
_locker.EnterWriteLock();
try
{
if (_theHeader == null)
{
throw new ObjectDisposedException("Cannot access the header after it was disposed");
}
modifyAction(_theHeader);
_revision++;
_theHeader->HeaderRevision = _revision;
var file = HeaderFileNames[_revision & 1];
_env.Options.WriteHeader(file, _theHeader);
}
finally
{
_locker.ExitWriteLock();
}
}
public WriteAheadJournal(StorageEnvironment env)
{
_env = env;
_dataPager = _env.Options.DataPager;
_currentJournalFileSize = env.Options.InitialLogFileSize;
_headerAccessor = env.HeaderAccessor;
_updateLogInfo = header =>
{
var journalFilesCount = _files.Count;
header->Journal.CurrentJournal = journalFilesCount > 0 ? _journalIndex : -1;
header->Journal.JournalFilesCount = journalFilesCount;
header->IncrementalBackup.LastCreatedJournal = _journalIndex;
};
_compressionPager = _env.Options.CreateScratchPager("compression.buffers");
_journalApplicator = new JournalApplicator(this);
}
public WriteAheadJournal(StorageEnvironment env)
{
_env = env;
_dataPager = _env.Options.DataPager;
_currentJournalFileSize = env.Options.InitialLogFileSize;
_headerAccessor = env.HeaderAccessor;
_updateLogInfo = header =>
{
var journalFilesCount = _files.Count;
header->Journal.CurrentJournal = journalFilesCount > 0 ? _journalIndex : -1;
header->Journal.JournalFilesCount = journalFilesCount;
header->IncrementalBackup.LastCreatedJournal = _journalIndex;
};
_compressionPager = _env.Options.CreateScratchPager("compression.buffers");
_journalApplicator = new JournalApplicator(this);
}
public void Modify(ModifyHeaderAction modifyAction)
{
_locker.EnterWriteLock();
try
{
modifyAction(_theHeader);
_revision++;
_theHeader->HeaderRevision = _revision;
var file = HeaderFileNames[_revision & 1];
_env.Options.WriteHeader(file, _theHeader);
}
finally
{
_locker.ExitWriteLock();
}
}
