private void ExecutePendingActions()
{
var sandboxLoader = new SandboxLoader(_filesystem);
while (!_isDisposed)
{
PendingAction action;
while (_pendingActions.TryDequeue(out action))
{
Execute(sandboxLoader, action);
}
// TODO: We should probably add a delay
_currentSandbox = sandboxLoader.CreateSandbox();
Thread.Sleep(TimeSpan.FromMilliseconds(100));
}
}
private void Execute(SandboxLoader loader, PendingAction action)
{
try
{
switch (action.Type)
{
case PendingActionType.CreateOrUpdate:
loader.CreateOrUpdate(action.Path);
break;
case PendingActionType.Remove:
loader.Delete(action.Path);
break;
case PendingActionType.Reload:
foreach (string file in Directory.EnumerateFiles(action.Path, "*.csproj", SearchOption.AllDirectories))
{
_pendingActions.Enqueue(PendingAction.CreateOrUpdate(file));
}
break;
}
}
catch (Exception e)
{
// We should retry operations for certain failures because
// changes are the operation will succeed the next time.
// Reasons are:
// - The file is currently owned by another process
// - The file is being modified and not yet ready to be consumed
// - Some other related race condition occured that will likely be remedied in the future
// Algorithm:
// Exponential backoff with a fixed upper limit of tries.
// TODO: Implement!
Log.ErrorFormat("Caught unexpected exception while executing '{0}': {1}",
action,
e);
}
}