private async Task SynchronizeAsync()
{
await _synchronizationSemaphore.WaitAsync().ConfigureAwait(false);
try
{
await _synchronizer.SynchronizeAsync(_primary, _backup).ConfigureAwait(false);
}
finally
{
_synchronizationSemaphore.Release();
}
}
private async Task Synchronize()
{
await _writeSemaphore.WaitAsync();
try
{
if (!IsSynchronized)
{
await _synchronizer.SynchronizeAsync(Source, Cache).ConfigureAwait(false);
IsSynchronized = true;
_lastSynchronization = DateTimeOffset.UtcNow;
}
}
finally
{
_writeSemaphore.Release();
}
}
private async Task CheckSynchronizationAsync()
{
await _masterStatusSemaphore.WaitAsync().ConfigureAwait(false);
try
{
if (_isMasterDown)
{
await _synchronizer.SynchronizeAsync(_slave, _master).ConfigureAwait(false);
_isMasterDown = false;
await RaiseMasterRecoveredAsync().ConfigureAwait(false);
}
}
finally
{
_masterStatusSemaphore.Release();
}
}