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 * modification, are permitted provided that the following conditions are
 * met:
 *
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 * notice, this list of conditions and the following disclaimer.
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 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
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 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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 */


// This file contains the ATL module class used by the O3D host ActiveX control.

#ifndef O3D_PLUGIN_NPAPI_HOST_CONTROL_WIN_MODULE_H_
#define O3D_PLUGIN_NPAPI_HOST_CONTROL_WIN_MODULE_H_

#include "npapi_host_control.h"

class NPAPIHostControlModule : public CAtlDllModuleT<NPAPIHostControlModule> {
 public:
  NPAPIHostControlModule() { InitializeCriticalSection(&cs_); }
  virtual ~NPAPIHostControlModule() { DeleteCriticalSection(&cs_); }

  // Routine used to serialize threads executing within the control.  Enters
  // a critical section shared for the process hosting the control.
  static void LockModule() {
    EnterCriticalSection(&GetGlobalInstance()->cs_);
  }

  // Routine used to serialize threads executing within the control.  Leaves
  // the critical section entered in lock_module().
  static void UnlockModule() {
    LeaveCriticalSection(&GetGlobalInstance()->cs_);
  }

  // Accessor routine for the global pointer _pAtlModule maintained by ATL.
  static NPAPIHostControlModule* GetGlobalInstance() {
    return static_cast<NPAPIHostControlModule*>(_pAtlModule);
  }

  DECLARE_LIBID(LIBID_npapi_host_controlLib)
 private:
  CRITICAL_SECTION cs_;
  DISALLOW_COPY_AND_ASSIGN(NPAPIHostControlModule);
};

#endif  // O3D_PLUGIN_NPAPI_HOST_CONTROL_WIN_MODULE_H_