Question

I call service method using


ThreadPool.QueueUserWorkItem(o => service.Method(arg1, arg2));


Service has object ‘loggingService’ with I was get using Spring.Net


private readonly ILoggingService loggingService = ObjectBuilder.GetObjectByName("LoggingService");


‘LoggingService’ class is singleton. It writes log info to log.txt.

When I try to call loggingService.Info(“test”) in this service method, I get exception: file is busy by another process.

How can I access to the loggingService?

Answer 1

Your singleton is apparently per-thread.
You will need some way of passing the LoggingService across threads.

For example, you could set service.loggingService in the original thread.

Alternatively, you might be able to configure Spring.Net to make it a non-thread-local singleton.

Note that your LoggingService must be thread-safe, or you’ll get strange errors at runtime.