win32 - service的创建
作者：互联网
参考这篇教程：Simple Windows Service in C++
安装service需要在管理员权限下运行cmd，并输入下面的命令行
C:\>sc create "My Sample Service" binPath= C:\SampleService.exe
My Sample Service是service name，可以随意更改。 后面的exe程序是我们需要执行的service，代码如下。
卸载service，输入，
C:\>sc delete "My Sample Service"
代码样例：
#include <Windows.h>
#include <tchar.h>
#include <wtsapi32.h>
#pragma comment(lib,"Wtsapi32.lib")
SERVICE_STATUS g_ServiceStatus = { 0 };
SERVICE_STATUS_HANDLE g_StatusHandle = NULL;
HANDLE g_ServiceStopEvent = INVALID_HANDLE_VALUE;
HANDLE g_hChildStd_Rd = NULL;
HANDLE g_hChildStd_Wr = NULL;
VOID WINAPI ServiceMain(DWORD argc, LPTSTR* argv);
VOID WINAPI ServiceCtrlHandler(DWORD);
DWORD WINAPI ServiceWorkerThread(LPVOID lpParam);
#define SERVICE_NAME _T("My Sample Service")
int _tmain(int argc, TCHAR* argv[])
{
OutputDebugString(_T("My Sample Service: Main: Entry"));
SERVICE_TABLE_ENTRY ServiceTable[] =
{
{(LPWSTR)SERVICE_NAME, (LPSERVICE_MAIN_FUNCTION)ServiceMain},
{NULL, NULL}
};
if (StartServiceCtrlDispatcher(ServiceTable) == FALSE)
{
OutputDebugString(_T("My Sample Service: Main: StartServiceCtrlDispatcher returned error"));
return GetLastError();
}
OutputDebugString(_T("My Sample Service: Main: Exit"));
return 0;
}
VOID WINAPI ServiceMain(DWORD argc, LPTSTR* argv)
{
HANDLE hThread;
DWORD Status = E_FAIL;
OutputDebugString(_T("My Sample Service: ServiceMain: Entry"));
g_StatusHandle = RegisterServiceCtrlHandler(SERVICE_NAME, ServiceCtrlHandler);
if (g_StatusHandle == NULL)
{
OutputDebugString(_T("My Sample Service: ServiceMain: RegisterServiceCtrlHandler returned error"));
goto EXIT;
}
// Tell the service controller we are starting
ZeroMemory(&g_ServiceStatus, sizeof(g_ServiceStatus));
g_ServiceStatus.dwServiceType = SERVICE_WIN32_OWN_PROCESS;
g_ServiceStatus.dwControlsAccepted = 0;
g_ServiceStatus.dwCurrentState = SERVICE_START_PENDING;
g_ServiceStatus.dwWin32ExitCode = 0;
g_ServiceStatus.dwServiceSpecificExitCode = 0;
g_ServiceStatus.dwCheckPoint = 0;
if (SetServiceStatus(g_StatusHandle, &g_ServiceStatus) == FALSE)
{
OutputDebugString(_T("My Sample Service: ServiceMain: SetServiceStatus returned error"));
}
/*
* Perform tasks neccesary to start the service here
*/
OutputDebugString(_T("My Sample Service: ServiceMain: Performing Service Start Operations"));
// Create stop event to wait on later.
g_ServiceStopEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
if (g_ServiceStopEvent == NULL)
{
OutputDebugString(_T("My Sample Service: ServiceMain: CreateEvent(g_ServiceStopEvent) returned error"));
g_ServiceStatus.dwControlsAccepted = 0;
g_ServiceStatus.dwCurrentState = SERVICE_STOPPED;
g_ServiceStatus.dwWin32ExitCode = GetLastError();
g_ServiceStatus.dwCheckPoint = 1;
if (SetServiceStatus(g_StatusHandle, &g_ServiceStatus) == FALSE)
{
OutputDebugString(_T("My Sample Service: ServiceMain: SetServiceStatus returned error"));
}
goto EXIT;
}
// Tell the service controller we are started
g_ServiceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP;
g_ServiceStatus.dwCurrentState = SERVICE_RUNNING;
g_ServiceStatus.dwWin32ExitCode = 0;
g_ServiceStatus.dwCheckPoint = 0;
if (SetServiceStatus(g_StatusHandle, &g_ServiceStatus) == FALSE)
{
OutputDebugString(_T("My Sample Service: ServiceMain: SetServiceStatus returned error"));
}
// Start the thread that will perform the main task of the service
hThread = CreateThread(NULL, 0, ServiceWorkerThread, NULL, 0, NULL);
OutputDebugString(_T("My Sample Service: ServiceMain: Waiting for Worker Thread to complete"));
// Wait until our worker thread exits effectively signaling that the service needs to stop
WaitForSingleObject(hThread, INFINITE);
OutputDebugString(_T("My Sample Service: ServiceMain: Worker Thread Stop Event signaled"));
/*
* Perform any cleanup tasks
*/
OutputDebugString(_T("My Sample Service: ServiceMain: Performing Cleanup Operations"));
CloseHandle(g_ServiceStopEvent);
g_ServiceStatus.dwControlsAccepted = 0;
g_ServiceStatus.dwCurrentState = SERVICE_STOPPED;
g_ServiceStatus.dwWin32ExitCode = 0;
g_ServiceStatus.dwCheckPoint = 3;
if (SetServiceStatus(g_StatusHandle, &g_ServiceStatus) == FALSE)
{
OutputDebugString(_T("My Sample Service: ServiceMain: SetServiceStatus returned error"));
}
EXIT:
OutputDebugString(_T("My Sample Service: ServiceMain: Exit"));
return;
}
VOID WINAPI ServiceCtrlHandler(DWORD CtrlCode)
{
OutputDebugString(_T("My Sample Service: ServiceCtrlHandler: Entry"));
switch (CtrlCode)
{
case SERVICE_CONTROL_STOP:
OutputDebugString(_T("My Sample Service: ServiceCtrlHandler: SERVICE_CONTROL_STOP Request"));
if (g_ServiceStatus.dwCurrentState != SERVICE_RUNNING)
break;
/*
* Perform tasks neccesary to stop the service here
*/
g_ServiceStatus.dwControlsAccepted = 0;
g_ServiceStatus.dwCurrentState = SERVICE_STOP_PENDING;
g_ServiceStatus.dwWin32ExitCode = 0;
g_ServiceStatus.dwCheckPoint = 4;
if (SetServiceStatus(g_StatusHandle, &g_ServiceStatus) == FALSE)
{
OutputDebugString(_T("My Sample Service: ServiceCtrlHandler: SetServiceStatus returned error"));
}
// This will signal the worker thread to start shutting down
SetEvent(g_ServiceStopEvent);
break;
default:
break;
}
OutputDebugString(_T("My Sample Service: ServiceCtrlHandler: Exit"));
}
DWORD WINAPI ServiceWorkerThread(LPVOID lpParam)
{
OutputDebugString(_T("My Sample Service: ServiceWorkerThread: Entry"));
WCHAR station[] = L"Winsta0\\default";
SECURITY_ATTRIBUTES saAttr;
saAttr.nLength = sizeof(SECURITY_ATTRIBUTES);
saAttr.bInheritHandle = TRUE;
saAttr.lpSecurityDescriptor = NULL;
CreatePipe(&g_hChildStd_Rd, &g_hChildStd_Wr, &saAttr, 0);
STARTUPINFO si;
ZeroMemory(&si, sizeof(STARTUPINFO));
si.cb = sizeof(STARTUPINFO);
si.hStdOutput = g_hChildStd_Wr;
si.hStdError = g_hChildStd_Wr;
si.lpDesktop = station;
si.dwFlags = STARTF_USESTDHANDLES;
PROCESS_INFORMATION pi;
HANDLE hToken;
bool err = WTSQueryUserToken(WTSGetActiveConsoleSessionId(), &hToken);
WCHAR path[] = L"D:\\child.exe";
if (CreateProcessAsUser(hToken, path, NULL, 0, 0, true, CREATE_NO_WINDOW, 0, 0, &si, &pi))
{
CloseHandle(g_hChildStd_Wr);
DWORD ret = WaitForSingleObject(pi.hProcess, 2000); //wait for the child process exit.
if (ret == 0)
{
WCHAR chBuf[100]= L"HELLO WORLD";
DWORD dwRead, dwWritten,
err = ReadFile(g_hChildStd_Rd, chBuf, 100, &dwRead, NULL);
HANDLE hFile = CreateFile(L"123.txt", // name of the write
GENERIC_WRITE, // open for writing
0, // do not share
NULL, // default security
CREATE_NEW, // create new file only
FILE_ATTRIBUTE_NORMAL, // normal file
NULL); // no attr. template
WriteFile(
hFile, // open file handle
chBuf, // start of data to write
100, // number of bytes to write
&dwWritten, // number of bytes that were written
NULL); // no overlapped structure
}
}
// Periodically check if the service has been requested to stop
while (WaitForSingleObject(g_ServiceStopEvent, 0) != WAIT_OBJECT_0)
{
/*
* Perform main service function here
*/
// Simulate some work by sleeping
Sleep(3000);
}
OutputDebugString(_T("My Sample Service: ServiceWorkerThread: Exit"));
return ERROR_SUCCESS;
}
在Winsta0\default中创建子进程，在service中使用CreateProcessAsUser调用子进程。
文档参考：Window Stations
如果需要service与子进程建立通信，可以使用匿名管道，代码中已经创建了管道，我没有使用它们。
如果对匿名管道的数据传输有兴趣的，可以参考我的另外一篇文章： win32 - 匿名管道的使用
标签：Sample,service,Service,创建,win32,OutputDebugString,ServiceStatus,NULL,My 来源： https://www.cnblogs.com/strive-sun/p/14276287.html