ServiceManager.h

/*
 * Copyright (c) 2008-2014, Pedigree Developers
 *
 * Please see the CONTRIB file in the root of the source tree for a full
 * list of contributors.
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */
 
#ifndef SERVICE_MANAGER_H
#define SERVICE_MANAGER_H
 
#include "pedigree/kernel/ServiceFeatures.h"
#include "pedigree/kernel/compiler.h"
#include "pedigree/kernel/process/Mutex.h"
#include "pedigree/kernel/process/OperationBarrier.h"
#include "pedigree/kernel/utilities/RadixTree.h"
#include "pedigree/kernel/utilities/String.h"
 
class Service;
 
 
class EXPORTED_PUBLIC ServiceManager {
 public:
  ServiceManager();
  virtual ~ServiceManager();
 
  static ServiceManager& instance() {
    return m_Instance;
  }
 
  ServiceFeatures* enumerateOperations(const String& serviceName);
 
  void addService(const String& serviceName, Service* s, ServiceFeatures* feats);
 
  void removeService(const String& serviceName);
 
  Service* getService(const String& serviceName);
 
  bool tryGetService(const String& serviceName, Service*& service, ServiceFeatures*& features);
 
  bool serve(const String& serviceName, ServiceFeatures::Type type, void* data, size_t dataLen);
 
 private:
  static ServiceManager m_Instance;
 
  class InternalService {
   public:
    Service* pService;
 
    ServiceFeatures* pFeatures;
 
    OperationBarrier operations;
  };
 
  Mutex m_Lock;
  RadixTree<InternalService*> m_Services;
};
#endif