Revision [265]
This is an old revision of browserPluginReturnIfNeeded made by JohnMcIntosh on 2008-10-19 05:24:22.
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:
TBD
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
