======**sqInt ioExit(void)**======
#define browserPluginReturnIfNeeded()

**Parms**: NONE
**return**: NONE, fake return of zero
**From**: Interpreter
**Why**: 
To decide if we should exit the interpreter loop

**Responsibility**:
In the early days of running the virtual machine as a browser plugin it was designed that the VM would run on the same Thread as the browser, this required us to run the interpreter loop for a number of milliseconds then terminate control back to the caller so the browser's main thread could gain control.  The browserPluginReturnIfNeeded would then get control every couple of milliseconds on a unconditional jump backwards, or on a message send, or on calling a primitive.  

**MacIntosh**
//os-9/OSXCarbon//
   #define browserPluginReturnIfNeeded() if (plugInTimeToReturn()) {ReturnFromInterpret();}
   Where plugInTimeToReturn is returns true if gQuitNowRightNow is true. 
	#define ReturnFromInterpret() return

//Cocoa://
See iPhone

**iPhone**
   #define browserPluginReturnIfNeeded() if (plugInTimeToReturn()) {ReturnFromInterpret();}
   Where plugInTimeToReturn is returns true if gQuitNowRightNow is true. 
   #define ReturnFromInterpret() return

   For testing of memory leakage we enable this so that we can terminate the interpreter loop on 'quit' 

**Unix**

**Windows**

**BUGS**