public void SetLease(LeaseToken leaseToken)
{
LeaseToken token = new LeaseToken(leaseToken.Path, leaseToken.Expiry, leaseToken.Type, leaseToken.LastSync, leaseToken.Expiry + this.interSiteLeaseExpiryInterval + FileLeaseManager.LeaseExpiryCriticalAlertPadding, leaseToken.Version);
FileLeaseManager.LeaseOperationResult leaseOperationResult = FileLeaseManager.TryRunLeaseOperation(new FileLeaseManager.LeaseOperation(this.SetLeaseOperation), new FileLeaseManager.LeaseOperationRequest(token));
if (!leaseOperationResult.Succeeded)
{
this.logSession.LogException(EdgeSyncLoggingLevel.Low, EdgeSyncEvent.TargetConnection, leaseOperationResult.Exception, "Sync failed because Edgesync failed to update lease file");
throw new ExDirectoryException(leaseOperationResult.Exception);
}
}
public static FileLeaseManager.LeaseOperationResult GetLeaseOperation(FileLeaseManager.LeaseOperationRequest request)
{
FileLeaseManager.LeaseOperationResult result;
using (FileStream fileStream = new FileStream(request.LeasePath, FileMode.OpenOrCreate, FileAccess.Read, FileShare.None))
{
byte[] array = new byte[fileStream.Length];
int count = fileStream.Read(array, 0, array.Length);
string @string = Encoding.ASCII.GetString(array, 0, count);
result = new FileLeaseManager.LeaseOperationResult(LeaseToken.Parse(@string));
}
return(result);
}
private FileLeaseManager.LeaseOperationResult SetLeaseOperation(FileLeaseManager.LeaseOperationRequest request)
{
string path = this.useBackupLeaseLocation ? this.backupLeaseFilePath : this.primaryLeaseFilePath;
FileLeaseManager.LeaseOperationResult result;
using (FileStream fileStream = new FileStream(path, FileMode.Create, FileAccess.Write, FileShare.None))
{
byte[] bytes = Encoding.ASCII.GetBytes(request.Token.StringForm);
fileStream.Write(bytes, 0, bytes.Length);
fileStream.Flush();
result = new FileLeaseManager.LeaseOperationResult();
}
return(result);
}
public LeaseToken GetLease()
{
FileLeaseManager.LeaseOperationResult leaseOperationResult = FileLeaseManager.TryRunLeaseOperation(new FileLeaseManager.LeaseOperation(FileLeaseManager.GetLeaseOperation), new FileLeaseManager.LeaseOperationRequest(this.primaryLeaseFilePath));
if (leaseOperationResult.Succeeded)
{
if (this.useBackupLeaseLocation)
{
this.logSession.LogEvent(EdgeSyncLoggingLevel.Low, EdgeSyncEvent.TargetConnection, null, "Switch back to primary lease from backup lease");
}
this.useBackupLeaseLocation = false;
return(leaseOperationResult.ResultToken);
}
this.logSession.LogException(EdgeSyncLoggingLevel.Low, EdgeSyncEvent.TargetConnection, leaseOperationResult.Exception, "Failed to open primary lease file. Switch to backup lease file");
leaseOperationResult = FileLeaseManager.TryRunLeaseOperation(new FileLeaseManager.LeaseOperation(FileLeaseManager.GetLeaseOperation), new FileLeaseManager.LeaseOperationRequest(this.backupLeaseFilePath));
if (leaseOperationResult.Succeeded)
{
this.logSession.LogEvent(EdgeSyncLoggingLevel.Low, EdgeSyncEvent.TargetConnection, null, "Successfully failed over to backup lease file");
this.useBackupLeaseLocation = true;
return(leaseOperationResult.ResultToken);
}
this.logSession.LogException(EdgeSyncLoggingLevel.Low, EdgeSyncEvent.TargetConnection, leaseOperationResult.Exception, "Failed to open backup lease file");
throw new ExDirectoryException(leaseOperationResult.Exception);
}