[host] initial host service project

This commit is contained in:
Geoffrey McRae 2017-10-31 20:20:37 +11:00
parent 80b1d45c3a
commit 773c0b52c3
5 changed files with 666 additions and 0 deletions

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#include <Windows.h>
#include <tchar.h>
#define SERVICE_NAME "kvm-ivshmem-host"
#define STR_HELPER(x) #x
#define STR(x) STR_HELPER(x)
#define DEBUG_HERE(...) SERVICE_NAME " " __FUNCTION__ ":" STR(__LINE__) " " ## __VA_ARGS__
//=============================================================================
struct App
{
SERVICE_STATUS serviceStatus;
SERVICE_STATUS_HANDLE statusHandle;
HANDLE serviceStopEvent;
};
struct App app =
{
.serviceStatus = {0},
.statusHandle = NULL,
.serviceStopEvent = INVALID_HANDLE_VALUE
};
//=============================================================================
VOID WINAPI ServiceMain(DWORD argc, LPTSTR *argv);
VOID WINAPI ServiceCtrlHandler(DWORD CtrlCode);
DWORD WINAPI ServiceWorkerThread(LPVOID lpParam);
//=============================================================================
int main(int argc, TCHAR *argv[])
{
SERVICE_TABLE_ENTRY ServiceTable[] =
{
{SERVICE_NAME, (LPSERVICE_MAIN_FUNCTION)ServiceMain},
{NULL, NULL}
};
if (StartServiceCtrlDispatcher(ServiceTable) == FALSE)
{
DWORD lastError = GetLastError();
if (lastError == ERROR_FAILED_SERVICE_CONTROLLER_CONNECT)
{
HANDLE hThread = CreateThread(NULL, 0, ServiceWorkerThread, NULL, 0, NULL);
WaitForSingleObject(hThread, INFINITE);
return 0;
}
return lastError;
}
return 0;
}
//=============================================================================
VOID WINAPI ServiceMain(DWORD argc, LPTSTR *argv)
{
app.statusHandle = RegisterServiceCtrlHandler(SERVICE_NAME, ServiceCtrlHandler);
if (!app.statusHandle)
return;
ZeroMemory(&app.serviceStatus, sizeof(app.serviceStatus));
app.serviceStatus.dwServiceType = SERVICE_WIN32_OWN_PROCESS;
app.serviceStatus.dwControlsAccepted = 0;
app.serviceStatus.dwCurrentState = SERVICE_START_PENDING;
app.serviceStatus.dwWin32ExitCode = 0;
app.serviceStatus.dwServiceSpecificExitCode = 0;
app.serviceStatus.dwCheckPoint = 0;
if (SetServiceStatus(app.statusHandle, &app.serviceStatus) == FALSE)
{
OutputDebugString(DEBUG_HERE("SetServiceStatus failed"));
return;
}
app.serviceStopEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
if (app.serviceStopEvent == INVALID_HANDLE_VALUE)
{
app.serviceStatus.dwControlsAccepted = 0;
app.serviceStatus.dwCurrentState = SERVICE_STOPPED;
app.serviceStatus.dwWin32ExitCode = GetLastError();
app.serviceStatus.dwCheckPoint = 1;
if (SetServiceStatus(app.statusHandle, &app.serviceStatus) == FALSE)
{
OutputDebugString(DEBUG_HERE("SetServiceStatus failed"));
return;
}
}
app.serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP;
app.serviceStatus.dwCurrentState = SERVICE_RUNNING;
app.serviceStatus.dwWin32ExitCode = 0;
app.serviceStatus.dwCheckPoint = 0;
if (SetServiceStatus(app.statusHandle, &app.serviceStatus) == FALSE)
{
OutputDebugString(DEBUG_HERE("SetServiceStatus failed"));
return;
}
HANDLE hThread = CreateThread(NULL, 0, ServiceWorkerThread, NULL, 0, NULL);
WaitForSingleObject(hThread, INFINITE);
CloseHandle(app.serviceStopEvent);
app.serviceStatus.dwControlsAccepted = 0;
app.serviceStatus.dwCurrentState = SERVICE_STOPPED;
app.serviceStatus.dwWin32ExitCode = 0;
app.serviceStatus.dwCheckPoint = 3;
if (SetServiceStatus(app.statusHandle, &app.serviceStatus) == FALSE)
{
OutputDebugString(DEBUG_HERE("SetServiceStatus failed"));
return;
}
}
//=============================================================================
VOID WINAPI ServiceCtrlHandler(DWORD CtrlCode)
{
switch (CtrlCode)
{
case SERVICE_CONTROL_STOP:
if (app.serviceStatus.dwCurrentState != SERVICE_RUNNING)
break;
app.serviceStatus.dwControlsAccepted = 0;
app.serviceStatus.dwCurrentState = SERVICE_STOP_PENDING;
app.serviceStatus.dwWin32ExitCode = 0;
app.serviceStatus.dwCheckPoint = 4;
if (SetServiceStatus(app.statusHandle, &app.serviceStatus) == FALSE)
OutputDebugString(DEBUG_HERE("SetServiceStatus failed"));
SetEvent(app.serviceStopEvent);
break;
default:
break;
}
}
//=============================================================================
DWORD WINAPI ServiceWorkerThread(LPVOID lpParam)
{
while (WaitForSingleObject(app.serviceStopEvent, 0) != WAIT_OBJECT_0)
{
Sleep(1000);
}
return ERROR_SUCCESS;
}
//=============================================================================