private void OnTimer(Timer timer)
{
if (context.BlockSent())
{
return;
}
if (timer.Height != context.BlockIndex || timer.ViewNumber != context.ViewNumber)
{
return;
}
Log($"timeout: height={timer.Height} view={timer.ViewNumber}");
if (context.IsPrimary() && !context.RequestSentOrReceived())
{
SendPrepareRequest();
}
else if ((context.IsPrimary() && context.RequestSentOrReceived()) || context.IsBackup())
{
if (context.CommitSent())
{
// Re-send commit periodically by sending recover message in case of a network issue.
Log($"send recovery to resend commit");
localNode.Tell(new LocalNode.SendDirectly {
Inventory = context.MakeRecoveryMessage()
});
ChangeTimer(TimeSpan.FromSeconds(Blockchain.SecondsPerBlock << 1));
}
else
{
RequestChangeView();
}
}
}