C++ service base stuff taken from MS public domain example project and modified slightly.

windows/ZeroTierOne/ServiceBase.h

@@ -0,0 +1,122 @@
+/****************************** Module Header ******************************\
+* Module Name:  ServiceBase.h
+* Project:      CppWindowsService
+* Copyright (c) Microsoft Corporation.
+* 
+* Provides a base class for a service that will exist as part of a service 
+* application. CServiceBase must be derived from when creating a new service 
+* class.
+* 
+* This source is subject to the Microsoft Public License.
+* See http://www.microsoft.com/en-us/openness/resources/licenses.aspx#MPL.
+* All other rights reserved.
+* 
+* THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND, 
+* EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED 
+* WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR PURPOSE.
+\***************************************************************************/
+
+#pragma once
+
+#include <windows.h>
+
+
+class CServiceBase
+{
+public:
+
+    // Register the executable for a service with the Service Control Manager 
+    // (SCM). After you call Run(ServiceBase), the SCM issues a Start command, 
+    // which results in a call to the OnStart method in the service. This 
+    // method blocks until the service has stopped.
+    static BOOL Run(CServiceBase &service);
+
+    // Service object constructor. The optional parameters (fCanStop, 
+    // fCanShutdown and fCanPauseContinue) allow you to specify whether the 
+    // service can be stopped, paused and continued, or be notified when 
+    // system shutdown occurs.
+    CServiceBase(LPSTR pszServiceName, 
+        BOOL fCanStop = TRUE, 
+        BOOL fCanShutdown = TRUE, 
+        BOOL fCanPauseContinue = FALSE);
+
+    // Service object destructor. 
+    virtual ~CServiceBase(void);
+
+    // Stop the service.
+    void Stop();
+
+protected:
+
+    // When implemented in a derived class, executes when a Start command is 
+    // sent to the service by the SCM or when the operating system starts 
+    // (for a service that starts automatically). Specifies actions to take 
+    // when the service starts.
+    virtual void OnStart(DWORD dwArgc, PSTR *pszArgv);
+
+    // When implemented in a derived class, executes when a Stop command is 
+    // sent to the service by the SCM. Specifies actions to take when a 
+    // service stops running.
+    virtual void OnStop();
+
+    // When implemented in a derived class, executes when a Pause command is 
+    // sent to the service by the SCM. Specifies actions to take when a 
+    // service pauses.
+    virtual void OnPause();
+
+    // When implemented in a derived class, OnContinue runs when a Continue 
+    // command is sent to the service by the SCM. Specifies actions to take 
+    // when a service resumes normal functioning after being paused.
+    virtual void OnContinue();
+
+    // When implemented in a derived class, executes when the system is 
+    // shutting down. Specifies what should occur immediately prior to the 
+    // system shutting down.
+    virtual void OnShutdown();
+
+    // Set the service status and report the status to the SCM.
+    void SetServiceStatus(DWORD dwCurrentState, 
+        DWORD dwWin32ExitCode = NO_ERROR, 
+        DWORD dwWaitHint = 0);
+
+    // Log a message to the Application event log.
+    void WriteEventLogEntry(PSTR pszMessage, WORD wType);
+
+    // Log an error message to the Application event log.
+    void WriteErrorLogEntry(PSTR pszFunction, 
+        DWORD dwError = GetLastError());
+
+private:
+
+    // Entry point for the service. It registers the handler function for the 
+    // service and starts the service.
+    static void WINAPI ServiceMain(DWORD dwArgc, LPSTR *lpszArgv);
+
+    // The function is called by the SCM whenever a control code is sent to 
+    // the service.
+    static void WINAPI ServiceCtrlHandler(DWORD dwCtrl);
+
+    // Start the service.
+    void Start(DWORD dwArgc, PSTR *pszArgv);
+    
+    // Pause the service.
+    void Pause();
+
+    // Resume the service after being paused.
+    void Continue();
+
+    // Execute when the system is shutting down.
+    void Shutdown();
+
+    // The singleton service instance.
+    static CServiceBase *s_service;
+
+    // The name of the service
+    LPSTR m_name;
+
+    // The status of the service
+    SERVICE_STATUS m_status;
+
+    // The service status handle
+    SERVICE_STATUS_HANDLE m_statusHandle;
+};