cf_void Set()
{
WritePid();
}
QTSS_ServerState StartServer(XMLPrefsParser* inPrefsSource, PrefsSource* inMessagesSource, UInt16 inPortOverride, int statsUpdateInterval, QTSS_ServerState inInitialState, Bool16 inDontFork, UInt32 debugLevel, UInt32 debugOptions)
{
//Mark when we are done starting up. If auto-restart is enabled, we want to make sure
//to always exit with a status of 0 if we encountered a problem WHILE STARTING UP. This
//will prevent infinite-auto-restart-loop type problems
Bool16 doneStartingUp = false;
QTSS_ServerState theServerState = qtssStartingUpState;
sStatusUpdateInterval = statsUpdateInterval;
//Initialize utility classes
OS::Initialize();
OSThread::Initialize();
Socket::Initialize();
SocketUtils::Initialize(!inDontFork);
#if !MACOSXEVENTQUEUE
::select_startevents();//initialize the select() implementation of the event queue
#endif
//start the server
QTSSDictionaryMap::Initialize();
QTSServerInterface::Initialize();// this must be called before constructing the server object
sServer = NEW QTSServer();
sServer->SetDebugLevel(debugLevel);
sServer->SetDebugOptions(debugOptions);
// re-parse config file
inPrefsSource->Parse();
Bool16 createListeners = true;
if (qtssShuttingDownState == inInitialState)
createListeners = false;
sServer->Initialize(inPrefsSource, inMessagesSource, inPortOverride,createListeners);
if (inInitialState == qtssShuttingDownState)
{
sServer->InitModules(inInitialState);
return inInitialState;
}
OSCharArrayDeleter runGroupName(sServer->GetPrefs()->GetRunGroupName());
OSCharArrayDeleter runUserName(sServer->GetPrefs()->GetRunUserName());
OSThread::SetPersonality(runUserName.GetObject(), runGroupName.GetObject());
if (sServer->GetServerState() != qtssFatalErrorState)
{
UInt32 numShortTaskThreads = 0;
UInt32 numBlockingThreads = 0;
UInt32 numThreads = 0;
UInt32 numProcessors = 0;
if (OS::ThreadSafe())
{
numShortTaskThreads = sServer->GetPrefs()->GetNumThreads(); // whatever the prefs say
if (numShortTaskThreads == 0) {
numProcessors = OS::GetNumProcessors();
// 1 worker thread per processor, up to 2 threads.
// Note: Limiting the number of worker threads to 2 on a MacOS X system with > 2 cores
// results in better performance on those systems, as of MacOS X 10.5. Future
// improvements should make this limit unnecessary.
if (numProcessors > 2)
numShortTaskThreads = 2;
else
numShortTaskThreads = numProcessors;
}
numBlockingThreads = sServer->GetPrefs()->GetNumBlockingThreads(); // whatever the prefs say
if (numBlockingThreads == 0)
numBlockingThreads = 1;
}
if (numShortTaskThreads == 0)
numShortTaskThreads = 1;
if (numBlockingThreads == 0)
numBlockingThreads = 1;
numThreads = numShortTaskThreads + numBlockingThreads;
//qtss_printf("Add threads shortask=%lu blocking=%lu\n",numShortTaskThreads, numBlockingThreads);
TaskThreadPool::SetNumShortTaskThreads(numShortTaskThreads);
TaskThreadPool::SetNumBlockingTaskThreads(numBlockingThreads);
TaskThreadPool::AddThreads(numThreads);
sServer->InitNumThreads(numThreads);
#if DEBUG
qtss_printf("Number of task threads: %"_U32BITARG_"\n",numThreads);
#endif
// Start up the server's global tasks, and start listening
TimeoutTask::Initialize(); // The TimeoutTask mechanism is task based,
// we therefore must do this after adding task threads
// this be done before starting the sockets and server tasks
}
//Make sure to do this stuff last. Because these are all the threads that
//do work in the server, this ensures that no work can go on while the server
//is in the process of staring up
if (sServer->GetServerState() != qtssFatalErrorState)
{
IdleTask::Initialize();
Socket::StartThread();
OSThread::Sleep(1000);
//
// On Win32, in order to call modwatch the Socket EventQueue thread must be
// created first. Modules call modwatch from their initializer, and we don't
// want to prevent them from doing that, so module initialization is separated
// out from other initialization, and we start the Socket EventQueue thread first.
// The server is still prevented from doing anything as of yet, because there
// aren't any TaskThreads yet.
sServer->InitModules(inInitialState);
sServer->StartTasks();
sServer->SetupUDPSockets(); // udp sockets are set up after the rtcp task is instantiated
theServerState = sServer->GetServerState();
}
if (theServerState != qtssFatalErrorState)
{
CleanPid(true);
WritePid(!inDontFork);
doneStartingUp = true;
qtss_printf("Streaming Server done starting up\n");
OSMemory::SetMemoryError(ENOMEM);
}
// SWITCH TO RUN USER AND GROUP ID
//if (!sServer->SwitchPersonality())
// theServerState = qtssFatalErrorState;
//
// Tell the caller whether the server started up or not
return theServerState;
}
//启动服务
QTSS_ServerState StartServer(XMLPrefsParser* inPrefsSource, PrefsSource* inMessagesSource, UInt16 inPortOverride, int statsUpdateInterval, QTSS_ServerState inInitialState, Bool16 inDontFork, UInt32 debugLevel, UInt32 debugOptions)
{
//Mark when we are done starting up. If auto-restart is enabled, we want to make sure
//to always exit with a status of 0 if we encountered a problem WHILE STARTING UP. This
//will prevent infinite-auto-restart-loop type problems
Bool16 doneStartingUp = false;
QTSS_ServerState theServerState = qtssStartingUpState;
//服务单元状态更新间隔
sStatusUpdateInterval = statsUpdateInterval;
//Initialize utility classes
OS::Initialize();
OSThread::Initialize();
//建立网络事件(R/W/E事件)线程，仅建立，But未启动
Socket::Initialize();
//获取系统网卡数量sNumIPAddrs及对应的具体ip，存储在sIPAddrInfoArray结构体数组中
SocketUtils::Initialize(!inDontFork);
/*
#if !MACOSXEVENTQUEUE
::select_startevents();//initialize the select() implementation of the event queue
#endif
*/
#if !MACOSXEVENTQUEUE
#ifndef __Win32__
::epollInit();
#else
::select_startevents();//initialize the select() implementation of the event queue
#endif
#endif
//初始化系统属性字典
QTSSDictionaryMap::Initialize();
//初始化Server对象属性字典，包括其他具有属性字典的类，都要先进行Initialize
QTSServerInterface::Initialize();//此部分必须在QTSServer对象构造前调用
sServer = NEW QTSServer();
sServer->SetDebugLevel(debugLevel);
sServer->SetDebugOptions(debugOptions);
//重新解析xml配置
inPrefsSource->Parse();
//准备开启监听，接收并处理相关事务
Bool16 createListeners = true;
if (qtssShuttingDownState == inInitialState)
createListeners = false;
//初始化服务实例
sServer->Initialize(inPrefsSource, inMessagesSource, inPortOverride, createListeners);
if (inInitialState == qtssShuttingDownState)
{
sServer->InitModules(inInitialState);
return inInitialState;
}
if (sServer->GetServerState() != qtssFatalErrorState)
{
UInt32 numShortTaskThreads = 0;
UInt32 numBlockingThreads = 0;
UInt32 numThreads = 0;
UInt32 numProcessors = 0;
if (OS::ThreadSafe())
{
//工作线程
numShortTaskThreads = sServer->GetPrefs()->GetNumThreads(); // whatever the prefs say
if (numShortTaskThreads == 0) {
numProcessors = OS::GetNumProcessors();
// 1 worker thread per processor, up to 2 threads.
// Note:Limiting the number of worker threads to 2 on a MacOS X system with > 2 cores
// results in better performance on those systems, as of MacOS X 10.5. Future
// improvements should make this limit unnecessary.
if (numProcessors > 2)
numShortTaskThreads = 2;
else
numShortTaskThreads = numProcessors;
}
//协议处理线程
numBlockingThreads = sServer->GetPrefs()->GetNumBlockingThreads(); // whatever the prefs say
if (numBlockingThreads == 0)
numBlockingThreads = 1;
}
if (numShortTaskThreads == 0)
numShortTaskThreads = 1;
if (numBlockingThreads == 0)
numBlockingThreads = 1;
numThreads = numShortTaskThreads + numBlockingThreads;
//qtss_printf("Add threads shortask=%lu blocking=%lu\n",numShortTaskThreads, numBlockingThreads);
TaskThreadPool::SetNumShortTaskThreads(numShortTaskThreads);
TaskThreadPool::SetNumBlockingTaskThreads(numBlockingThreads);
TaskThreadPool::AddThreads(numThreads);
sServer->InitNumThreads(numThreads);
#if DEBUG
qtss_printf("Number of task threads: %" _U32BITARG_ "\n",numThreads);
#endif
// Start up the server's global tasks, and start listening
//超时事件处理线程
TimeoutTask::Initialize(); // The TimeoutTask mechanism is task based,
// we therefore must do this after adding task threads
// this be done before starting the sockets and server tasks
}
//Make sure to do this stuff last. Because these are all the threads that
//do work in the server, this ensures that no work can go on while the server
//is in the process of staring up
if (sServer->GetServerState() != qtssFatalErrorState)
{
//Idle事务处理线程
IdleTask::Initialize();
Socket::StartThread();
OSThread::Sleep(1000);
//
// On Win32, in order to call modwatch the Socket EventQueue thread must be
// created first. Modules call modwatch from their initializer, and we don't
// want to prevent them from doing that, so module initialization is separated
// out from other initialization, and we start the Socket EventQueue thread first.
// The server is still prevented from doing anything as of yet, because there
// aren't any TaskThreads yet.
sServer->InitModules(inInitialState);
sServer->StartTasks();
theServerState = sServer->GetServerState();
}
if (theServerState != qtssFatalErrorState)
{
CleanPid(true);
WritePid(!inDontFork);
doneStartingUp = true;
//Log
char msgStr[128];
qtss_snprintf(msgStr, sizeof(msgStr), "EasyCMS Service done starting up");
QTSServerInterface::LogError(qtssMessageVerbosity, msgStr);
OSMemory::SetMemoryError(ENOMEM);
}
//// SWITCH TO RUN USER AND GROUP ID
//if (!sServer->SwitchPersonality())
// theServerState = qtssFatalErrorState;
// Tell the caller whether the server started up or not
return theServerState;
}
