Shared pain

[Steve Teale]

I had D code that provided a basis for creation of Windows services, 
which I have just tried to get working with the latest D2.

No dice.

The point of failure was in this method

static void StartService()
{
   if (!StartServiceCtrlDispatcherA(cast(SERVICE_TABLE_ENTRY *) &_sta[0]))
   {
      ...
   }
}

Where _sta is an array of SERVICE_TABLE_ENTRY structs. The bits of code 
that install and remove the service worked fine, but the service control 
dispatcher was clearly not happy about these structs being in TLS, and 
the service crashed immediately when I tried to start it.

The class also has a couple of methods with signatures like:

extern (Windows) static export void service_ctrl(uint dwCtrlCode) {...}

That's probably not relevant, but I think it contributed to a host of 
errors that finally made be take a big step back.

I re-implemented the thing in the style used for OOP in C.

struct ServiceBase
{
   SERVICE_TABLE_ENTRY[2] _sta;
   ...
}

__gshared ServiceBase __sb;

void initialize(ServiceBase* sb) { ... }
void whatever(ServiceBase* sb ...) { ... }

and used the __sb global within the functions with the Windows signature, 
which just became

extern (Windows) export void service_ctrl(uint dwCtrlCode) {...}

Now it's working again, but I want to change it into idiomatically sound 
D code.

Style suggestions please!

Steve