Fix code style of async API

src/script/cpp_api/s_async.cpp

@@ -34,82 +34,102 @@ extern "C" {
 
 /******************************************************************************/
 AsyncEngine::AsyncEngine() :
-	m_initDone(false),
-	m_JobIdCounter(0)
+	initDone(false),
+	jobIdCounter(0)
 {
 }
 
 /******************************************************************************/
 AsyncEngine::~AsyncEngine()
 {
-	// Force kill all threads
-	for (std::vector<AsyncWorkerThread*>::iterator i = m_WorkerThreads.begin();
-			i != m_WorkerThreads.end(); i++) {
-		(*i)->Kill();
-		delete *i;
+
+	// Request all threads to stop
+	for (std::vector<AsyncWorkerThread *>::iterator it = workerThreads.begin();
+			it != workerThreads.end(); it++) {
+		(*it)->Stop();
 	}
 
-	m_JobQueueMutex.Lock();
-	m_JobQueue.clear();
-	m_JobQueueMutex.Unlock();
-	m_WorkerThreads.clear();
+
+	// Wake up all threads
+	for (std::vector<AsyncWorkerThread *>::iterator it = workerThreads.begin();
+			it != workerThreads.end(); it++) {
+		jobQueueCounter.Post();
+	}
+
+	// Wait for threads to finish
+	for (std::vector<AsyncWorkerThread *>::iterator it = workerThreads.begin();
+			it != workerThreads.end(); it++) {
+		(*it)->Wait();
+	}
+
+	// Force kill all threads
+	for (std::vector<AsyncWorkerThread *>::iterator it = workerThreads.begin();
+			it != workerThreads.end(); it++) {
+		(*it)->Kill();
+		delete *it;
+	}
+
+	jobQueueMutex.Lock();
+	jobQueue.clear();
+	jobQueueMutex.Unlock();
+	workerThreads.clear();
 }
 
 /******************************************************************************/
 bool AsyncEngine::registerFunction(const char* name, lua_CFunction func)
 {
-	if (m_initDone) {
+	if (initDone) {
 		return false;
 	}
-	m_FunctionList[name] = func;
+	functionList[name] = func;
 	return true;
 }
 
 /******************************************************************************/
-void AsyncEngine::Initialize(unsigned int numEngines)
+void AsyncEngine::initialize(unsigned int numEngines)
 {
-	m_initDone = true;
+	initDone = true;
 
 	for (unsigned int i = 0; i < numEngines; i++) {
-		AsyncWorkerThread* toAdd = new AsyncWorkerThread(this, i);
-		m_WorkerThreads.push_back(toAdd);
+		AsyncWorkerThread *toAdd = new AsyncWorkerThread(this, i);
+		workerThreads.push_back(toAdd);
 		toAdd->Start();
 	}
 }
 
 /******************************************************************************/
-unsigned int AsyncEngine::doAsyncJob(std::string func, std::string params)
+unsigned int AsyncEngine::queueAsyncJob(std::string func, std::string params)
 {
-	m_JobQueueMutex.Lock();
-	LuaJobInfo toadd;
-	toadd.JobId = m_JobIdCounter++;
-	toadd.serializedFunction = func;
-	toadd.serializedParams = params;
+	jobQueueMutex.Lock();
+	LuaJobInfo toAdd;
+	toAdd.id = jobIdCounter++;
+	toAdd.serializedFunction = func;
+	toAdd.serializedParams = params;
 
-	m_JobQueue.push_back(toadd);
+	jobQueue.push_back(toAdd);
 
-	m_JobQueueCounter.Post();
+	jobQueueCounter.Post();
 
-	m_JobQueueMutex.Unlock();
+	jobQueueMutex.Unlock();
 
-	return toadd.JobId;
+	return toAdd.id;
 }
 
 /******************************************************************************/
 LuaJobInfo AsyncEngine::getJob()
 {
-	m_JobQueueCounter.Wait();
-	m_JobQueueMutex.Lock();
+	jobQueueCounter.Wait();
+	jobQueueMutex.Lock();
 
 	LuaJobInfo retval;
 	retval.valid = false;
 
-	if (m_JobQueue.size() != 0) {
-		retval = m_JobQueue.front();
+	if (!jobQueue.empty()) {
+		retval = jobQueue.front();
+		jobQueue.pop_front();
 		retval.valid = true;
-		m_JobQueue.erase(m_JobQueue.begin());
 	}
-	m_JobQueueMutex.Unlock();
+	jobQueueMutex.Unlock();
 
 	return retval;
 }
@@ -117,19 +137,19 @@ LuaJobInfo AsyncEngine::getJob()
 /******************************************************************************/
 void AsyncEngine::putJobResult(LuaJobInfo result)
 {
-	m_ResultQueueMutex.Lock();
-	m_ResultQueue.push_back(result);
-	m_ResultQueueMutex.Unlock();
+	resultQueueMutex.Lock();
+	resultQueue.push_back(result);
+	resultQueueMutex.Unlock();
 }
 
 /******************************************************************************/
-void AsyncEngine::Step(lua_State *L, int errorhandler)
+void AsyncEngine::step(lua_State *L, int errorhandler)
 {
 	lua_getglobal(L, "engine");
-	m_ResultQueueMutex.Lock();
-	while (!m_ResultQueue.empty()) {
-		LuaJobInfo jobdone = m_ResultQueue.front();
-		m_ResultQueue.erase(m_ResultQueue.begin());
+	resultQueueMutex.Lock();
+	while (!resultQueue.empty()) {
+		LuaJobInfo jobDone = resultQueue.front();
+		resultQueue.pop_front();
 
 		lua_getfield(L, -1, "async_event_handler");
 
@@ -139,53 +159,54 @@ void AsyncEngine::Step(lua_State *L, int errorhandler)
 
 		luaL_checktype(L, -1, LUA_TFUNCTION);
 
-		lua_pushinteger(L, jobdone.JobId);
-		lua_pushlstring(L, jobdone.serializedResult.c_str(),
-				jobdone.serializedResult.length());
+		lua_pushinteger(L, jobDone.id);
+		lua_pushlstring(L, jobDone.serializedResult.data(),
+				jobDone.serializedResult.size());
 
 		if (lua_pcall(L, 2, 0, errorhandler)) {
 			script_error(L);
 		}
 	}
-	m_ResultQueueMutex.Unlock();
+	resultQueueMutex.Unlock();
 	lua_pop(L, 1); // Pop engine
 }
 
 /******************************************************************************/
-void AsyncEngine::PushFinishedJobs(lua_State* L) {
+void AsyncEngine::pushFinishedJobs(lua_State* L) {
 	// Result Table
-	m_ResultQueueMutex.Lock();
+	resultQueueMutex.Lock();
 
 	unsigned int index = 1;
-	lua_createtable(L, m_ResultQueue.size(), 0);
+	lua_createtable(L, resultQueue.size(), 0);
 	int top = lua_gettop(L);
 
-	while (!m_ResultQueue.empty()) {
-		LuaJobInfo jobdone = m_ResultQueue.front();
-		m_ResultQueue.erase(m_ResultQueue.begin());
+	while (!resultQueue.empty()) {
+		LuaJobInfo jobDone = resultQueue.front();
+		resultQueue.pop_front();
 
-		lua_createtable(L, 0, 2);  // Pre-alocate space for two map fields
+		lua_createtable(L, 0, 2);  // Pre-allocate space for two map fields
 		int top_lvl2 = lua_gettop(L);
 
 		lua_pushstring(L, "jobid");
-		lua_pushnumber(L, jobdone.JobId);
+		lua_pushnumber(L, jobDone.id);
 		lua_settable(L, top_lvl2);
 
 		lua_pushstring(L, "retval");
-		lua_pushlstring(L, jobdone.serializedResult.data(),
-			jobdone.serializedResult.size());
+		lua_pushlstring(L, jobDone.serializedResult.data(),
+			jobDone.serializedResult.size());
 		lua_settable(L, top_lvl2);
 
 		lua_rawseti(L, top, index++);
 	}
 
-	m_ResultQueueMutex.Unlock();
+	resultQueueMutex.Unlock();
 }
 
 /******************************************************************************/
-void AsyncEngine::PrepareEnvironment(lua_State* L, int top) {
-	for (std::map<std::string, lua_CFunction>::iterator it = m_FunctionList.begin();
-			it != m_FunctionList.end(); it++) {
+void AsyncEngine::prepareEnvironment(lua_State* L, int top)
+{
+	for (std::map<std::string, lua_CFunction>::iterator it = functionList.begin();
+			it != functionList.end(); it++) {
 		lua_pushstring(L, it->first.c_str());
 		lua_pushcfunction(L, it->second);
 		lua_settable(L, top);
@@ -196,8 +217,8 @@ void AsyncEngine::PrepareEnvironment(lua_State* L, int top) {
 AsyncWorkerThread::AsyncWorkerThread(AsyncEngine* jobDispatcher,
 		unsigned int threadNum) :
 	ScriptApiBase(),
-	m_JobDispatcher(jobDispatcher),
-	m_threadnum(threadNum)
+	jobDispatcher(jobDispatcher),
+	threadnum(threadNum)
 {
 	lua_State *L = getStack();
 
@@ -216,7 +237,7 @@ AsyncWorkerThread::AsyncWorkerThread(AsyncEngine* jobDispatcher,
 			(porting::path_share + DIR_DELIM + "builtin").c_str());
 	lua_setglobal(L, "SCRIPTDIR");
 
-	m_JobDispatcher->PrepareEnvironment(L, top);
+	jobDispatcher->prepareEnvironment(L, top);
 }
 
 /******************************************************************************/
@@ -232,7 +253,7 @@ void* AsyncWorkerThread::Thread()
 
 	// Register thread for error logging
 	char number[21];
-	snprintf(number, sizeof(number), "%d", m_threadnum);
+	snprintf(number, sizeof(number), "%d", threadnum);
 	log_register_thread(std::string("AsyncWorkerThread_") + number);
 
 	porting::setThreadName((std::string("AsyncWorkTh_") + number).c_str());
@@ -251,7 +272,7 @@ void* AsyncWorkerThread::Thread()
 	// Main loop
 	while (!StopRequested()) {
 		// Wait for job
-		LuaJobInfo toProcess = m_JobDispatcher->getJob();
+		LuaJobInfo toProcess = jobDispatcher->getJob();
 
 		if (toProcess.valid == false || StopRequested()) {
 			continue;
@@ -293,7 +314,7 @@ void* AsyncWorkerThread::Thread()
 		lua_pop(L, 3);
 
 		// Put job result
-		m_JobDispatcher->putJobResult(toProcess);
+		jobDispatcher->putJobResult(toProcess);
 	}
 	log_deregister_thread();
 	return 0;