Пример #1
0
NS_IMETHODIMP
XPCJSContextStack::SetSafeJSContext(JSContext * aSafeJSContext)
{
    if(mOwnSafeJSContext &&
       mOwnSafeJSContext == mSafeJSContext &&
       mOwnSafeJSContext != aSafeJSContext)
    {
        JS_DestroyContextNoGC(mOwnSafeJSContext);
        mOwnSafeJSContext = nsnull;
    }

    mSafeJSContext = aSafeJSContext;
    return NS_OK;
}
void SG_jscontextpool__teardown(SG_context * pCtx)
{
	if(gpJSContextPoolGlobalState!=NULL)
	{
		SG_ERR_CHECK_RETURN(  SG_mutex__lock(pCtx, &gpJSContextPoolGlobalState->lock)  );

		// Wait until all outstanding SG_jscontexts have been released. Don't try to terminate
		// early, otherwise we have a race condition on our hands: If the outstanding SG_jscontext
		// tries to perform any JavaScript operations before the app terminates, but after we have
		// called JS_Shutdown(), we'll end up crashing on exit. This of course is worse than
		//  making the user hit Ctrl-C again to do a hard shutdown if it's taking too long.
		if(gpJSContextPoolGlobalState->numContextsCheckedOut > 0)
		{
			SG_ERR_IGNORE(  SG_log__report_warning(pCtx, "Waiting on %d SG_jscontexts that are still in use.", gpJSContextPoolGlobalState->numContextsCheckedOut)  );
			while(gpJSContextPoolGlobalState->numContextsCheckedOut > 0)
			{
				SG_ERR_CHECK_RETURN(  SG_mutex__unlock(pCtx, &gpJSContextPoolGlobalState->lock)  );
				SG_sleep_ms(10);
				SG_ERR_CHECK_RETURN(  SG_mutex__lock(pCtx, &gpJSContextPoolGlobalState->lock)  );
			}
		}

		SG_ERR_CHECK_RETURN(  SG_mutex__unlock(pCtx, &gpJSContextPoolGlobalState->lock)  );
		SG_mutex__destroy(&gpJSContextPoolGlobalState->lock);

		while(gpJSContextPoolGlobalState->pFirstAvailableContext!=NULL)
		{
			SG_jscontext * pJs = gpJSContextPoolGlobalState->pFirstAvailableContext;
			gpJSContextPoolGlobalState->pFirstAvailableContext = pJs->pNextAvailableContext;

			(void)JS_SetContextThread(pJs->cx);
			JS_BeginRequest(pJs->cx);
			JS_SetContextPrivate(pJs->cx, pCtx);
			JS_DestroyContextNoGC(pJs->cx);

			if(SG_context__has_err(pCtx)) // An error was produced during GC...
			{
				SG_log__report_error__current_error(pCtx);
				SG_context__err_reset(pCtx);
			}

			SG_NULLFREE(pCtx, pJs);
		}

		SG_VHASH_NULLFREE(pCtx, gpJSContextPoolGlobalState->pServerConfig);
		SG_NULLFREE(pCtx, gpJSContextPoolGlobalState);
	}
}