用 StartService 启动一个服务，启动是启动了，只是要启动完需要很久，用windows自带服务管理程序（控制面板 -> 管理工具 -> 服务）看了一下，启动、停止、暂停、恢复全是灰色。但是如果用windows自带服务管理程序去启动，是非常快的
下面贴代码（实现 mysql 服务重启）：
bool TFormCreateCompetitPro::RestartMySQLService()
{
::SC_HANDLE schSCManager,
schService;
SERVICE_STATUS_PROCESS sspStatus;
SERVICE_STATUS ssStatus;
DWORD dwBytesNeeded;
int waitCount = 10;
//打开服务控制管理器，并获得句柄
if ((schSCManager = OpenSCManager(NULL, SERVICES_ACTIVE_DATABASE, SC_MANAGER_CONNECT)) == NULL)
return false;
//打开服务
if ((schService = OpenServiceA(schSCManager, "MySQL", SERVICE_ALL_ACCESS)) == NULL)
{
CloseServiceHandle(schSCManager);
return false;
}
//检查服务状态
if (!QueryServiceStatusEx(
schService, // handle to service
SC_STATUS_PROCESS_INFO, // information level
(LPBYTE) &sspStatus, // address of structure
sizeof(SERVICE_STATUS_PROCESS), // size of structure
&dwBytesNeeded ) ) // size needed if buffer is too small
{
CloseServiceHandle(schService);
CloseServiceHandle(schSCManager);
return false;
}
//如果服务未启动，则启动服务
if (sspStatus.dwCurrentState == SERVICE_STOPPED)
{
if (!StartService(
schService, // handle to service
0, // number of arguments
NULL) ) // no arguments
{
CloseServiceHandle(schService);
CloseServiceHandle(schSCManager);
return false;
}
// 等待启动完成
do
{
if (waitCount <= 0)
return false;
::Sleep(1500);
//检查服务状态
if (!QueryServiceStatusEx(
schService, // handle to service
SC_STATUS_PROCESS_INFO, // information level
(LPBYTE) &sspStatus, // address of structure
sizeof(SERVICE_STATUS_PROCESS), // size of structure
&dwBytesNeeded ) ) // size needed if buffer is too small
{
CloseServiceHandle(schService);
CloseServiceHandle(schSCManager);
return false;
}
waitCount--;
}
while (sspStatus.dwCurrentState != SERVICE_RUNNING);
}
//如果服务正在停止中，则等待完全停止，再启动服务
else if (sspStatus.dwCurrentState == SERVICE_STOP_PENDING)
{
// 等待停止完成
do
{
::Sleep(1500);
//检查服务状态
if (!QueryServiceStatusEx(
schService, // handle to service
SC_STATUS_PROCESS_INFO, // information level
(LPBYTE) &sspStatus, // address of structure
sizeof(SERVICE_STATUS_PROCESS), // size of structure
&dwBytesNeeded ) ) // size needed if buffer is too small
{
CloseServiceHandle(schService);
CloseServiceHandle(schSCManager);
return false;
}
}
while (sspStatus.dwCurrentState != SERVICE_STOPPED);
//启动服务
if (!StartService(
schService, // handle to service
0, // number of arguments
NULL) ) // no arguments
{
CloseServiceHandle(schService);
CloseServiceHandle(schSCManager);
return false;
}
// 等待启动完成
do
{
if (waitCount <= 0)
return false;
::Sleep(1500);
//检查服务状态
if (!QueryServiceStatusEx(
schService, // handle to service
SC_STATUS_PROCESS_INFO, // information level
(LPBYTE) &sspStatus, // address of structure
sizeof(SERVICE_STATUS_PROCESS), // size of structure
&dwBytesNeeded ) ) // size needed if buffer is too small
{
CloseServiceHandle(schService);
CloseServiceHandle(schSCManager);
return false;
}
waitCount--;
}
while (sspStatus.dwCurrentState != SERVICE_RUNNING);
}
// 如果正在运行中，则停止服务，再启动服务
else if (sspStatus.dwCurrentState == SERVICE_RUNNING)
{
//停止服务
if(!ControlService(schService, SERVICE_CONTROL_STOP, &ssStatus))
{
CloseServiceHandle(schService);
CloseServiceHandle(schSCManager);
return false;
}
// 等待停止完成
do
{
::Sleep(1500);
//检查服务状态
if (!QueryServiceStatusEx(
schService, // handle to service
SC_STATUS_PROCESS_INFO, // information level
(LPBYTE) &sspStatus, // address of structure
sizeof(SERVICE_STATUS_PROCESS), // size of structure
&dwBytesNeeded ) ) // size needed if buffer is too small
{
CloseServiceHandle(schService);
CloseServiceHandle(schSCManager);
return false;
}
}
while (sspStatus.dwCurrentState != SERVICE_STOPPED);
//启动服务
if (!StartService(
schService, // handle to service
0, // number of arguments
NULL) ) // no arguments
{
CloseServiceHandle(schService);
CloseServiceHandle(schSCManager);
return false;
}
// 等待启动完成
do
{
if (waitCount <= 0)
return false;
::Sleep(1500);
//检查服务状态
if (!QueryServiceStatusEx(
schService, // handle to service
SC_STATUS_PROCESS_INFO, // information level
(LPBYTE) &sspStatus, // address of structure
sizeof(SERVICE_STATUS_PROCESS), // size of structure
&dwBytesNeeded ) ) // size needed if buffer is too small
{
CloseServiceHandle(schService);
CloseServiceHandle(schSCManager);
return false;
}
waitCount--;
}
while (sspStatus.dwCurrentState != SERVICE_RUNNING);
}
CloseServiceHandle(schService);
CloseServiceHandle(schSCManager);
return true;
}
