C++ LLTimer::getElapsedTimeF64方法代码示例

S32 LLQueuedThread::updateQueue(U32 max_time_ms)
{
	F64 max_time = (F64)max_time_ms * .001;
	LLTimer timer;
	S32 pending = 1;

	// Frame Update
	if (mThreaded)
	{
		pending = getPending();
		if(pending > 0)
		{
		unpause();
		}
	}
	else
	{
		while (pending > 0)
		{
			pending = processNextRequest();
			if (max_time && timer.getElapsedTimeF64() > max_time)
				break;
		}
	}
	return pending;
}

// This is the SLPlugin process.
// This is not part of a DSO.
//
// This function is called by SLPlugin to send a message (originating from
// SLPlugin itself) to the loaded DSO. It calls LLPluginInstance::sendMessage.
void LLPluginProcessChild::sendMessageToPlugin(const LLPluginMessage &message)
{
	if (mInstance)
	{
		std::string buffer = message.generate();
		
		LL_DEBUGS("Plugin") << "Sending to plugin: " << buffer << LL_ENDL;
		LLTimer elapsed;
		
		mInstance->sendMessage(buffer);
		
		mCPUElapsed += elapsed.getElapsedTimeF64();
	}
	else
	{
		LL_WARNS("Plugin") << "mInstance == NULL" << LL_ENDL;
	}
}

void LLVertexBuffer::clientCopy(F64 max_time)
{
	if (!sDeleteList.empty())
	{
		size_t num = sDeleteList.size();
		glDeleteBuffersARB(sDeleteList.size(), (GLuint*) &(sDeleteList[0]));
		sDeleteList.clear();
		sGLCount -= num;
	}

	if (sEnableVBOs)
	{
		LLTimer timer;
		BOOL reset = TRUE;
		buffer_list_t::iterator iter = sLockedList.begin();
		while(iter != sLockedList.end())
		{
			LLVertexBuffer* buffer = *iter;
			if (buffer->isLocked() && buffer->useVBOs())
			{
				buffer->setBuffer(0);
			}
			++iter;
			if (reset)
			{
				reset = FALSE;
				timer.reset(); //skip first copy (don't count pipeline stall)
			}
			else
			{
				if (timer.getElapsedTimeF64() > max_time)
				{
					break;
				}
			}

		}

		sLockedList.erase(sLockedList.begin(), iter);
	}
}

//.........这里部分代码省略.........
			passMessage = false;
			
			std::string message_name = parsed.getName();
			if(message_name == "load_plugin")
			{
				mPluginFile = parsed.getValue("file");
				mPluginDir = parsed.getValue("dir");
			}
			else if(message_name == "shm_add")
			{
				std::string name = parsed.getValue("name");
				size_t size = (size_t)parsed.getValueS32("size");
				
				sharedMemoryRegionsType::iterator iter = mSharedMemoryRegions.find(name);
				if(iter != mSharedMemoryRegions.end())
				{
					// Need to remove the old region first
					LL_WARNS("Plugin") << "Adding a duplicate shared memory segment!" << LL_ENDL;
				}
				else
				{
					// This is a new region
					LLPluginSharedMemory *region = new LLPluginSharedMemory;
					if(region->attach(name, size))
					{
						mSharedMemoryRegions.insert(sharedMemoryRegionsType::value_type(name, region));
						
						std::stringstream addr;
						addr << region->getMappedAddress();
						
						// Send the add notification to the plugin
						LLPluginMessage message("base", "shm_added");
						message.setValue("name", name);
						message.setValueS32("size", (S32)size);
						message.setValuePointer("address", region->getMappedAddress());
						sendMessageToPlugin(message);
						
						// and send the response to the parent
						message.setMessage(LLPLUGIN_MESSAGE_CLASS_INTERNAL, "shm_add_response");
						message.setValue("name", name);
						sendMessageToParent(message);
					}
					else
					{
						LL_WARNS("Plugin") << "Couldn't create a shared memory segment!" << LL_ENDL;
						delete region;
					}
				}
				
			}
			else if(message_name == "shm_remove")
			{
				std::string name = parsed.getValue("name");
				sharedMemoryRegionsType::iterator iter = mSharedMemoryRegions.find(name);
				if(iter != mSharedMemoryRegions.end())
				{
					// forward the remove request to the plugin -- its response will trigger us to detach the segment.
					LLPluginMessage message("base", "shm_remove");
					message.setValue("name", name);
					sendMessageToPlugin(message);
				}
				else
				{
					LL_WARNS("Plugin") << "shm_remove for unknown memory segment!" << LL_ENDL;
				}
			}
			else if(message_name == "sleep_time")
			{
				mSleepTime = llmax(parsed.getValueReal("time"), 1.0 / 100.0); // clamp to maximum of 100Hz
			}
			else if(message_name == "crash")
			{
				// Crash the plugin
				LL_ERRS("Plugin") << "Plugin crash requested." << LL_ENDL;
			}
			else if(message_name == "hang")
			{
				// Hang the plugin
				LL_WARNS("Plugin") << "Plugin hang requested." << LL_ENDL;
				while(1)
				{
					// wheeeeeeeee......
				}
			}
			else
			{
				LL_WARNS("Plugin") << "Unknown internal message from parent: " << message_name << LL_ENDL;
			}
		}
	}
	
	if(passMessage && mInstance != NULL)
	{
		LLTimer elapsed;

		mInstance->sendMessage(message);

		mCPUElapsed += elapsed.getElapsedTimeF64();
	}
}

//.........这里部分代码省略.........
					}
					
					// and figure out whether this process or its parent are currently frontmost
					if(GetFrontProcess(&front) == noErr)
					{
						(void) SameProcess(&self, &front, &this_is_front_process);
						(void) SameProcess(&parent, &front, &parent_is_front_process);
					}
				}
								
				if((FrontWindow() != NULL) && (front_window == NULL))
				{
					// Opening the first window
					
					if(window_hack_state == 0)
					{
						// Next time through the event loop, lower the window group layer
						window_hack_state = 1;
					}

					if(layer_group)
					{
						SetWindowGroup(FrontWindow(), layer_group);
					}
					
					if(parent_is_front_process)
					{
						// Bring this process's windows to the front.
						(void) SetFrontProcess( &self );
					}

					ActivateWindow(FrontWindow(), true);					
				}
				else if((FrontWindow() == NULL) && (front_window != NULL))
				{
					// Closing the last window
					
					if(this_is_front_process)
					{
						// Try to bring this process's parent to the front
						(void) SetFrontProcess(&parent);
					}
				}
				else if(window_hack_state == 1)
				{
					if(layer_group)
					{
						// Set the window group level back to something less extreme
						SetWindowGroupLevel(layer_group, kCGNormalWindowLevel);
					}
					window_hack_state = 2;
				}

				front_window = FrontWindow();

			}
		}
#endif
		F64 elapsed = timer.getElapsedTimeF64();
		F64 remaining = plugin->getSleepTime() - elapsed;

		if(remaining <= 0.0f)
		{
			// We've already used our full allotment.
//			LL_INFOS("slplugin") << "elapsed = " << elapsed * 1000.0f << " ms, remaining = " << remaining * 1000.0f << " ms, not sleeping" << LL_ENDL;

			// Still need to service the network...
			plugin->pump();
		}
		else
		{

//			LL_INFOS("slplugin") << "elapsed = " << elapsed * 1000.0f << " ms, remaining = " << remaining * 1000.0f << " ms, sleeping for " << remaining * 1000.0f << " ms" << LL_ENDL;
//			timer.reset();

			// This also services the network as needed.
			plugin->sleep(remaining);

//			LL_INFOS("slplugin") << "slept for "<< timer.getElapsedTimeF64() * 1000.0f << " ms" <<  LL_ENDL;
		}

#if LL_WINDOWS
	// More agressive checking of interfering exception handlers.
	// Doesn't appear to be required so far - even for plugins
	// that do crash with a single call to the intercept
	// exception handler such as QuickTime.
	//checkExceptionHandler();
#endif

#if LL_DARWIN
		deleteAutoReleasePool();
#endif
	}

	delete plugin;

	ll_cleanup_apr();

	return 0;
}

int main(int argc, char **argv)
#endif
{
	ll_init_apr();

	// Set up llerror logging
	{
		LLError::initForApplication(".");
		LLError::setDefaultLevel(LLError::LEVEL_INFO);
//		LLError::setTagLevel("Plugin", LLError::LEVEL_DEBUG);
//		LLError::logToFile("slplugin.log");
	}

#if LL_WINDOWS
	if( strlen( lpCmdLine ) == 0 )
	{
		LL_ERRS("slplugin") << "usage: " << "SLPlugin" << " launcher_port" << LL_ENDL;
	};

	U32 port = 0;
	if(!LLStringUtil::convertToU32(lpCmdLine, port))
	{
		LL_ERRS("slplugin") << "port number must be numeric" << LL_ENDL;
	};

	// Insert our exception handler into the system so this plugin doesn't
	// display a crash message if something bad happens. The host app will
	// see the missing heartbeat and log appropriately.
	initExceptionHandler();
#elif LL_DARWIN || LL_LINUX
	if(argc < 2)
	{
		LL_ERRS("slplugin") << "usage: " << argv[0] << " launcher_port" << LL_ENDL;
	}

	U32 port = 0;
	if(!LLStringUtil::convertToU32(argv[1], port))
	{
		LL_ERRS("slplugin") << "port number must be numeric" << LL_ENDL;
	}

	// Catch signals that most kinds of crashes will generate, and exit cleanly so the system crash dialog isn't shown.
	signal(SIGILL, &crash_handler);		// illegal instruction
# if LL_DARWIN
	signal(SIGEMT, &crash_handler);		// emulate instruction executed
# endif // LL_DARWIN
	signal(SIGFPE, &crash_handler);		// floating-point exception
	signal(SIGBUS, &crash_handler);		// bus error
	signal(SIGSEGV, &crash_handler);	// segmentation violation
	signal(SIGSYS, &crash_handler);		// non-existent system call invoked
#endif

	LLPluginProcessChild *plugin = new LLPluginProcessChild();

	plugin->init(port);

	LLTimer timer;
	timer.start();

#if LL_WINDOWS
	checkExceptionHandler();
#endif

#if LL_DARWIN
	EventTargetRef event_target = GetEventDispatcherTarget();
#endif
	while(!plugin->isDone())
	{
		timer.reset();
		plugin->idle();
#if LL_DARWIN
		{
			// Some plugins (webkit at least) will want an event loop.  This qualifies.
			EventRef event;
			if(ReceiveNextEvent(0, 0, kEventDurationNoWait, true, &event) == noErr)
			{
				SendEventToEventTarget (event, event_target);
				ReleaseEvent(event);
			}
		}
#endif
		F64 elapsed = timer.getElapsedTimeF64();
		F64 remaining = plugin->getSleepTime() - elapsed;

		if(remaining <= 0.0f)
		{
			// We've already used our full allotment.
//			LL_INFOS("slplugin") << "elapsed = " << elapsed * 1000.0f << " ms, remaining = " << remaining * 1000.0f << " ms, not sleeping" << LL_ENDL;

			// Still need to service the network...
			plugin->pump();
		}
		else
		{

//			LL_INFOS("slplugin") << "elapsed = " << elapsed * 1000.0f << " ms, remaining = " << remaining * 1000.0f << " ms, sleeping for " << remaining * 1000.0f << " ms" << LL_ENDL;
//			timer.reset();

			// This also services the network as needed.
			plugin->sleep(remaining);
//.........这里部分代码省略.........

// Static
//	Called from MAIN thread
void FLLua::execClientEvents()
{
	if(!sInstance)
	{
		llinfos << "LUA isn't running yet." << llendl;
		return;
	}
	if(sInstance->mPendingEvents)
	{
		lldebugs << __LINE__ << ": Events pending.  Iterating through events." << llendl;
		sInstance->mPendingEvents=false;
		sInstance->lockData();
		while(!sInstance->mQueuedEvents.empty())
		{
#ifdef FL_PRI_EVENTS
			lldebugs << __LINE__ << ": Acquiring highest-priority event." << llendl;
			CB_Base *cb=sInstance->mQueuedEvents.top();
#else
			lldebugs << __LINE__ << ": Acquiring first event in queue." << llendl;
			CB_Base *cb=sInstance->mQueuedEvents.front();
#endif
			if(!cb)
			{
				llwarns << "Invalid pointer to event!" << llendl;
			} else {
				lldebugs << __LINE__ << ": Calling event." << llendl;
				cb->OnCall();
				delete cb;
			}
			sInstance->mQueuedEvents.pop();
		}
		sInstance->unlockData();
	}
	if(sInstance->isPaused())
	{
		if(sInstance->mAllowPause) //shouldn't ever happen.
		{
			sInstance->unpause();
			return;
		}
		int yields=0;
		LLTimer timer;
		timer.setTimerExpirySec(.25);
		while(!sInstance->mAllowPause)//mAllowPause == true when Lua thread finishes loop.
		{
			sInstance->unpause();
			yield(); //Hopefully let the Lua thread resume
			yields++;
			if(timer.hasExpired())
			{
				LL_WARNS("Lua") << "Aborting critical section after " 
					<< timer.getElapsedTimeF64()*(F64)1000.f << "ms " << llendl;
				sInstance->mAllowPause=true; // NOTE: Lua taking too much time. Force new critical requests
											 // to next frame.
				break;
			}
		}
		int sec=sInstance->mCriticalSections;
		if(sec)	//Main has resumed with Lua in a critical section. Not thread safe.
			LL_WARNS("Lua") << sec << " critical sections active. Unsafe resume!" << llendl;
		LL_INFOS("Lua") << "Finished critical section after " 
			<< timer.getElapsedTimeF64()*(F64)1000.f << "ms. Yields=" << yields << llendl;
	}	
}