windows下的php-cgi进程守护

php在linux,unix下有php-fpm,spawn-fcgi等进程守护程序,但是在window下没有。
一般会以下命令启动 C:/php5/php-cgi.exe -b 127.0.0.1:9000 -c C:/php5/php.ini 
但是这样受限于php-cgi的PHP_FCGI_MAX_REQUESTS环境变量，默认处理500次后自动退出php-cgi.
加之一些非正常原因的异常退出，都会导致php-cgi.exe的退出。所有在window需要进程守护程序，当php-cgi退出后自动打开新的php-cgi进程。 代码如下：

// FastCGIHelper.cpp : 定义控制台应用程序的入口点。
//

#include "stdafx.h"
#pragma comment(lib, "ws2_32.lib")

const PCHAR cServiceName="WinFastCGIHelper";

HANDLE hJob;

INT  icount;
INT	 iport;
CHAR ipbuf[32];
CHAR cmdbuf[256];

//---------------------------------------------------------------------------
SERVICE_STATUS ServiceStatus;
SERVICE_STATUS_HANDLE hStatus;

void Install(void);
void Uninstall(void);
void ServiceMain(int argc, char** argv);
void ThreadProc(LPVOID pParam);
void ControlHandler(DWORD request);

//---------------------------------------------------------------------------
int _tmain(int argc, _TCHAR* argv[])
{
    if (argc>1 && _stricmp(argv[1],"/i")==0)
    {
        Install();
    }
    else if (argc>1 && _stricmp(argv[1],"/u")==0)
    {
        Uninstall();
    }
    else
    {
        SERVICE_TABLE_ENTRY ServiceTable[2];
        ServiceTable[0].lpServiceName = cServiceName;
        ServiceTable[0].lpServiceProc = (LPSERVICE_MAIN_FUNCTION)ServiceMain;

        ServiceTable[1].lpServiceName = NULL;
        ServiceTable[1].lpServiceProc = NULL;

        ::StartServiceCtrlDispatcher(ServiceTable);
    }

	return 0;
}

void ServiceMain(int argc, char** argv)
{
    ServiceStatus.dwServiceType  =SERVICE_WIN32;
    ServiceStatus.dwCurrentState =SERVICE_START_PENDING;
    ServiceStatus.dwControlsAccepted  = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_SHUTDOWN;
    ServiceStatus.dwWin32ExitCode     = 0;
    ServiceStatus.dwServiceSpecificExitCode = 0;
    ServiceStatus.dwCheckPoint = 0;
    ServiceStatus.dwWaitHint   = 0;

    hStatus = ::RegisterServiceCtrlHandler(cServiceName, (LPHANDLER_FUNCTION)ControlHandler);
    if (hStatus == NULL)    return;

    if (GetLastError()!=NO_ERROR)
	{ 
        ServiceStatus.dwCurrentState = SERVICE_STOPPED;
        ::SetServiceStatus(hStatus, &ServiceStatus);
        return; 
    }

	CHAR cConfigName[256];
	ZeroMemory(cConfigName,256);
	DWORD dwSize=GetModuleFileName(NULL,cConfigName,256);
    while(dwSize>0 && cConfigName[dwSize]!='\\')
        cConfigName[dwSize--]=0;

	strcat_s(cConfigName,"config.ini");

	icount=GetPrivateProfileInt("setup","CmdCount",1,cConfigName);
	GetPrivateProfileString("setup","CmdPath","",cmdbuf,256,cConfigName);
	
	if(icount<1) icount=1;
	if(icount>32) icount=32;

	iport =GetPrivateProfileInt("setup","Port",9000,cConfigName);
	GetPrivateProfileString("setup","IP","127.0.0.1",ipbuf,32,cConfigName);

	WSADATA wsa_data; 
	WSAStartup(0x0202, &wsa_data);

	SOCKADDR_IN listen_addr;
	listen_addr.sin_family		=AF_INET;
	listen_addr.sin_addr.S_un.S_addr= inet_addr(ipbuf);
	listen_addr.sin_port		= htons(iport);

	DWORD s=socket(AF_INET,SOCK_STREAM,IPPROTO_IP);
	if(bind(s, (struct sockaddr*)&listen_addr, sizeof(struct sockaddr_in)) || listen(s,16) ){
        ServiceStatus.dwCurrentState = SERVICE_STOPPED;
        ::SetServiceStatus(hStatus, &ServiceStatus);
        return; 
	}
	
	CHAR strtmp[128];
	ZeroMemory(strtmp,128);

	GetPrivateProfileString("env","PHPRC",".",strtmp,127,cConfigName);
	SetEnvironmentVariable("PHPRC",strtmp);

	GetPrivateProfileString("env","PHP_FCGI_MAX_REQUESTS","5000",strtmp,127,cConfigName);
	SetEnvironmentVariable("PHP_FCGI_MAX_REQUESTS",strtmp);

	hJob=CreateJobObject(NULL,NULL);

	JOBOBJECT_EXTENDED_LIMIT_INFORMATION limit;
	QueryInformationJobObject(hJob, JobObjectExtendedLimitInformation, &limit, sizeof(limit), NULL);
	limit.BasicLimitInformation.LimitFlags |= JOB_OBJECT_LIMIT_KILL_ON_JOB_CLOSE;
	SetInformationJobObject(hJob, JobObjectExtendedLimitInformation, &limit, sizeof(limit));

	ServiceStatus.dwCurrentState = SERVICE_RUNNING;
    SetServiceStatus(hStatus, &ServiceStatus);

	for(int i=0;i<icount;i++)
		CloseHandle(CreateThread(NULL,0,(LPTHREAD_START_ROUTINE)ThreadProc,(LPVOID)s,0,0));
	
	WaitForSingleObject(hJob, INFINITE);
	
	closesocket(s);
	WSACleanup();
    
    ServiceStatus.dwWin32ExitCode = 0;
    ServiceStatus.dwCurrentState  = SERVICE_STOPPED;
    SetServiceStatus(hStatus, &ServiceStatus);
}
//---------------------------------------------------------------------------
void  ThreadProc(LPVOID pParam)
{
	STARTUPINFO si; 
	PROCESS_INFORMATION pi;   

	while(ServiceStatus.dwCurrentState == SERVICE_RUNNING)
	{
		ZeroMemory(&si,sizeof(STARTUPINFO));
		ZeroMemory(&pi,sizeof(PROCESS_INFORMATION));

		si.cb = sizeof(STARTUPINFO);
		si.dwFlags 	= STARTF_USESTDHANDLES;
		si.hStdInput  = (HANDLE)pParam;
		si.hStdOutput = INVALID_HANDLE_VALUE;
		si.hStdError  = INVALID_HANDLE_VALUE;

		if(0==CreateProcess(NULL,cmdbuf,NULL,NULL,TRUE, 
			CREATE_NO_WINDOW | CREATE_SUSPENDED | CREATE_BREAKAWAY_FROM_JOB ,NULL,NULL,&si,&pi))
				break;

		AssignProcessToJobObject(hJob, pi.hProcess);
		ResumeThread(pi.hThread);

		WaitForSingleObject(pi.hProcess, INFINITE);

		CloseHandle( pi.hProcess);
		CloseHandle( pi.hThread );
	}
}
//---------------------------------------------------------------------------
void ControlHandler(DWORD request)
{
   switch(request)
   {
      case SERVICE_CONTROL_STOP:
        ServiceStatus.dwWin32ExitCode = 0;
        ServiceStatus.dwCurrentState  = SERVICE_STOPPED;
        SetServiceStatus(hStatus, &ServiceStatus);

		CloseHandle(hJob);
        return;

      case SERVICE_CONTROL_SHUTDOWN:
        ServiceStatus.dwWin32ExitCode = 0;
        ServiceStatus.dwCurrentState  = SERVICE_STOPPED;
        SetServiceStatus(hStatus, &ServiceStatus);

		CloseHandle(hJob);
        return;
    } 

    ::SetServiceStatus (hStatus, &ServiceStatus);
}
//---------------------------------------------------------------------------
void Install(void)
{
    char  szFilePath[256];
    SC_HANDLE hSCM,hService;

    ZeroMemory(szFilePath,256);
    GetModuleFileName(NULL,szFilePath,256);

    hSCM=::OpenSCManager(NULL, NULL, SC_MANAGER_ALL_ACCESS);
	SC_LOCK sclLock = LockServiceDatabase(hSCM); 

    hService = ::CreateService( hSCM, cServiceName, cServiceName,
        SERVICE_ALL_ACCESS, SERVICE_WIN32_OWN_PROCESS,SERVICE_DEMAND_START,
            SERVICE_ERROR_NORMAL, szFilePath, NULL, NULL,NULL, NULL, NULL);

	SERVICE_DESCRIPTION sdBuf;
	sdBuf.lpDescription = "php fastcgi process helper for windows";
	ChangeServiceConfig2(hService,SERVICE_CONFIG_DESCRIPTION,&sdBuf);

	::CloseServiceHandle(hService);   
	::UnlockServiceDatabase(sclLock); 

    ::CloseServiceHandle(hSCM);
    printf("Service Install OK !!!");
}

//---------------------------------------------------------------------------
void Uninstall(void)
{
    SERVICE_STATUS sStatus ;
    SC_HANDLE hSCM=::OpenSCManager(NULL, NULL, SC_MANAGER_ALL_ACCESS);
    SC_HANDLE hService=::OpenService(hSCM, cServiceName, SERVICE_STOP | DELETE);

    if (hService==NULL)
    {
        printf("Service Open Error !!!");
    }
    else
    {
        ::ControlService(hService, SERVICE_CONTROL_STOP, &sStatus);
        ::DeleteService(hService);
        printf("Service Uninstall OK !!!");
    }

    ::CloseServiceHandle(hService);
    ::CloseServiceHandle(hSCM);
}
//---------------------------------------------------------------------------

config.ini配置文件

[setup]
ip=127.0.0.1
port=9000
CmdCount=5
CmdPath="D:\php\php-cgi.exe"

[env]
PHPRC="D:\php"
PHP_FCGI_MAX_REQUESTS="10000"

注意事项：windows建议关闭Dr. Watson，否则 异常的php-cgi无法正常退出。
http://support.microsoft.com/kb/188296/zh-cn