protected override void OnLockAcquired()
{
OperationManager.SafeExecute(() => {
// Create Sentinel file for DWAS to check
// DWAS will check for presence of this file incase a an app setting based recycle needs to be performed in middle of deployment
// If this is present, DWAS will postpone the recycle so that deployment goes through first
if (!String.IsNullOrEmpty(siteRoot))
{
FileSystemHelpers.CreateDirectory(Path.Combine(siteRoot, @"ShutdownSentinel"));
string sentinelPath = Path.Combine(siteRoot, @"ShutdownSentinel\Sentinel.txt");
if (!FileSystemHelpers.FileExists(sentinelPath))
{
var file = FileSystemHelpers.CreateFile(sentinelPath);
file.Close();
}
// DWAS checks if write time of this file is in the future then only postpones the recycle
FileInfoBase sentinelFileInfo = FileSystemHelpers.FileInfoFromFileName(sentinelPath);
sentinelFileInfo.LastWriteTimeUtc = DateTime.UtcNow.AddMinutes(20);
}
});
IRepositoryFactory repositoryFactory = RepositoryFactory;
if (repositoryFactory != null)
{
IRepository repository = repositoryFactory.GetRepository();
if (repository != null)
{
// Clear any left over repository-related lock since we have the actual lock
repository.ClearLock();
}
}
}
public bool Acquire(ITracer tracer)
{
lock (_lock)
{
try
{
// No timeout makes this call instant. No waiting for acquistion
bool acquired = _shutdownSemaphore.Wait(millisecondsTimeout: 0);
if (!acquired)
{
tracer.Trace("Could not acquire shutdown semaphore", new Dictionary <string, string>
{
{ "SemaphoreCount", _shutdownSemaphore.CurrentCount.ToString() }
});
return(false);
}
//tracer.Trace("Acquired shutdown semaphore", new Dictionary<string, string>
//{
// { "SemaphoreCount", _shutdownSemaphore.CurrentCount.ToString() }
//});
OperationManager.SafeExecute(() => {
if (Environment.IsAzureEnvironment() && OSDetector.IsOnWindows())
{
string siteRoot = PathUtilityFactory.Instance.ResolveLocalSitePath();
// Create Sentinel file for DWAS to check
// DWAS will check for presence of this file incase a an app setting based recycle needs to be performed in middle of deployment
// If this is present, DWAS will postpone the recycle so that deployment goes through first
if (!string.IsNullOrEmpty(siteRoot))
{
FileSystemHelpers.CreateDirectory(Path.Combine(siteRoot, @"ShutdownSentinel"));
string sentinelPath = Path.Combine(siteRoot, @"ShutdownSentinel\Sentinel.txt");
if (!FileSystemHelpers.FileExists(sentinelPath))
{
//tracer.Trace("Creating shutdown sentinel file", new Dictionary<string, string>
//{
// { "SemaphoreCount", _shutdownSemaphore.CurrentCount.ToString() }
//});
var file = FileSystemHelpers.CreateFile(sentinelPath);
file.Close();
}
tracer.Trace("Updating shutdown sentinel last write time", new Dictionary <string, string>
{
{ "SemaphoreCount", _shutdownSemaphore.CurrentCount.ToString() }
});
// DWAS checks if write time of this file is in the future then only postpones the recycle
FileInfoBase sentinelFileInfo = FileSystemHelpers.FileInfoFromFileName(sentinelPath);
sentinelFileInfo.LastWriteTimeUtc = DateTime.UtcNow.AddMinutes(20);
}
}
});
}
catch (Exception ex)
{
tracer.TraceError(ex);
return(false);
}
return(true);
}
}