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// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_CREDENTIAL_PROVIDER_EXTENSION_SERVICE_H_
#define CHROME_CREDENTIAL_PROVIDER_EXTENSION_SERVICE_H_
#include <windows.h>
#include "base/functional/callback.h"
namespace credential_provider {
namespace extension {
// Bare implementation of the GCPW extension service. Takes care the handshake
// with the service control manager and the lifetime of the service.
class Service {
public:
// Gets the singleton instance of the service.
static Service* Get();
Service(const Service&) = delete;
Service& operator=(const Service&) = delete;
// Invoke the chosen action routine. By default service runs as a service,
// but the action routine can support running in console for testing purposes.
DWORD Run();
private:
Service();
virtual ~Service();
// The action routine to be executed.
DWORD (Service::*run_routine_)();
// This function handshakes with the service control manager and starts
// the service.
DWORD RunAsService();
// Non-static function that is called as part of service main(ServiceMain).
// Performs registering control handler callback and managing the service
// states.
void StartMain();
// Service main call back which was provided earlier to service control
// manager as part of RunAsService call.
static VOID WINAPI ServiceMain(DWORD argc, WCHAR* argv[]);
// The control handler of the service. Details about the control codes can be
// found here:
// https://docs.microsoft.com/en-us/windows/win32/services/service-control-handler-function
static void WINAPI ServiceControlHandler(DWORD control);
// Returns the storage used for the instance pointer.
static Service** GetInstanceStorage();
// Status of the running service. Must be updated accordingly before calling
// SetServiceStatus API.
SERVICE_STATUS service_status_;
// The service status handle which is used with SetServiceStatus API.
SERVICE_STATUS_HANDLE service_status_handle_;
// Callback to end running periodic tasks.
base::OnceClosure quit_closure_;
};
} // namespace extension
} // namespace credential_provider
#endif // CHROME_CREDENTIAL_PROVIDER_EXTENSION_SERVICE_H_
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