public void Release(ITracer tracer)
{
lock (_lock)
{
_shutdownSemaphore.Release();
//tracer.Trace("Released shut down semaphore", new Dictionary<string, string>
//{
// { "SemaphoreCount", _shutdownSemaphore.CurrentCount.ToString() }
//});
if (_shutdownSemaphore.CurrentCount == InitialAndMaxCount)
{
OperationManager.SafeExecute(() => {
string siteRoot = PathUtilityFactory.Instance.ResolveLocalSitePath();
// Delete the Sentinel file to signal DWAS that deployment is complete
if (!string.IsNullOrEmpty(siteRoot))
{
string sentinelPath = Path.Combine(siteRoot, @"ShutdownSentinel\Sentinel.txt");
if (FileSystemHelpers.FileExists(sentinelPath))
{
tracer.Trace("Deleting shutdown sentinel file", new Dictionary <string, string>
{
{ "SemaphoreCount", _shutdownSemaphore.CurrentCount.ToString() }
});
FileSystemHelpers.DeleteFile(sentinelPath);
}
}
});
}
}
}
// we cannot use FileSystemHelpers.DeleteFileSafe.
// it does not handled IOException due to 'file in used'.
private void DeleteFileSafe()
{
try
{
FileSystemHelpers.DeleteFile(_path);
}
catch (Exception ex)
{
TraceIfUnknown(ex);
}
}
private void TryRemovedLockFile()
{
if (!FileSystemHelpers.FileExists(_path))
{
return;
}
FileSystemHelpers.DeleteFile(_path);
// check if file still exists
if (FileSystemHelpers.FileExists(_path))
{
throw new Exception("Tried removing but the lock file still exists, would retry the removal");
}
}
// we cannot use FileSystemHelpers.DeleteFileSafe.
// it does not handled IOException due to 'file in used'.
private void DeleteFileSafe()
{
// Only clean up lock on Windows Env
// When running on Mono with SMB share, delete action would cause wierd behavior on later OpenWrite action if a file has already been opened by another process
if (OSDetector.IsOnWindows())
{
try
{
FileSystemHelpers.DeleteFile(_path);
}
catch (Exception ex)
{
TraceIfUnknown(ex);
}
}
}
// we cannot use FileSystemHelpers.DeleteFileSafe.
// it does not handled IOException due to 'file in used'.
private void DeleteFileSafe()
{
// Only clean up lock on Windows Env
try
{
FileSystemHelpers.DeleteFile(_path);
OperationManager.Attempt(() =>
// throws exception if file is still present
TryRemovedLockFile()
, 10, 250);
}
catch (Exception ex)
{
TraceIfUnknown(ex);
}
}
protected override void OnLockRelease()
{
base.OnLockRelease();
OperationManager.SafeExecute(() => {
// Delete the Sentinel file to signal DWAS that deployment is complete
if (!String.IsNullOrEmpty(siteRoot))
{
string sentinelPath = Path.Combine(siteRoot, @"ShutdownSentinel\Sentinel.txt");
if (FileSystemHelpers.FileExists(sentinelPath))
{
FileSystemHelpers.DeleteFile(sentinelPath);
}
}
});
}
protected override void OnLockRelease()
{
base.OnLockRelease();
if (ScmHostingConfigurations.FunctionsSyncTriggersDelayBackground && shutdownDelayed)
{
ShutdownDelaySemaphore.GetInstance().Release(_traceFactory.GetTracer());
}
else
{
OperationManager.SafeExecute(() => {
// Delete the Sentinel file to signal DWAS that deployment is complete
if (!String.IsNullOrEmpty(siteRoot))
{
string sentinelPath = Path.Combine(siteRoot, @"ShutdownSentinel\Sentinel.txt");
if (FileSystemHelpers.FileExists(sentinelPath))
{
FileSystemHelpers.DeleteFile(sentinelPath);
}
}
});
}
}
