SbThreadLocalStorage.h

/*=======================================================================
 *** THE CONTENT OF THIS WORK IS PROPRIETARY TO FEI S.A.S, (FEI S.A.S.),            ***
 ***              AND IS DISTRIBUTED UNDER A LICENSE AGREEMENT.                     ***
 ***                                                                                ***
 ***  REPRODUCTION, DISCLOSURE,  OR USE,  IN WHOLE OR IN PART,  OTHER THAN AS       ***
 ***  SPECIFIED  IN THE LICENSE ARE  NOT TO BE  UNDERTAKEN  EXCEPT WITH PRIOR       ***
 ***  WRITTEN AUTHORIZATION OF FEI S.A.S.                                           ***
 ***                                                                                ***
 ***                        RESTRICTED RIGHTS LEGEND                                ***
 ***  USE, DUPLICATION, OR DISCLOSURE BY THE GOVERNMENT OF THE CONTENT OF THIS      ***
 ***  WORK OR RELATED DOCUMENTATION IS SUBJECT TO RESTRICTIONS AS SET FORTH IN      ***
 ***  SUBPARAGRAPH (C)(1) OF THE COMMERCIAL COMPUTER SOFTWARE RESTRICTED RIGHT      ***
 ***  CLAUSE  AT FAR 52.227-19  OR SUBPARAGRAPH  (C)(1)(II)  OF  THE RIGHTS IN      ***
 ***  TECHNICAL DATA AND COMPUTER SOFTWARE CLAUSE AT DFARS 52.227-7013.             ***
 ***                                                                                ***
 ***                   COPYRIGHT (C) 1996-2024 BY FEI S.A.S,                        ***
 ***                        BORDEAUX, FRANCE                                        ***
 ***                      ALL RIGHTS RESERVED                                       ***
**=======================================================================*/
/*=======================================================================
** Author      : Nicolas DAGUISE (Oct 2008)
**=======================================================================*/
 
 
#ifndef _SB_THREAD_LOCAL_STORAGE_H_
#define _SB_THREAD_LOCAL_STORAGE_H_
 
#include <Inventor/SbBase.h>
 
typedef void SoInitTLSClassCB();
typedef void SoExitTLSClassCB();
 
#define SB_THREAD_INIT_CLASS(_className_,_structName_) \
  SbThreadLocalStorage::createStorage(_className_::MT_Id, sizeof(struct _className_::_structName_), _className_::initTLSClass, _className_::exitTLSClass, OIV_FUNCTION );
 
#define SB_THREAD_IS_INITIALIZED(_className_) \
  SbThreadLocalStorage::isInitialized(_className_::MT_Id)
 
#define SB_THREAD_EXIT_CLASS(_className_) \
  SbThreadLocalStorage::deleteStorage( _className_::MT_Id, OIV_FUNCTION );
 
#define GET_THREAD_LOCAL_VAR(_className_, _structName_, _varName_) \
  ((static_cast<struct _className_::_structName_ *> (SbThreadLocalStorage::getStorage(_className_::MT_Id)))->_varName_)
 
#define GET_THREAD_LOCAL_STORAGE(_className_) \
  (static_cast<void *> (SbThreadLocalStorage::getStorage(_className_::MT_Id)))
 
#define SB_THREAD_TLS_HEADER() \
private: \
 \
  static size_t MT_Id; \
 \
  static void initTLSClass(); \
 \
  static void exitTLSClass()
 
 
#define SB_THREAD_TLS_SOURCE( _className_ ) \
 \
  size_t _className_::MT_Id = -1
 
#ifndef SoNodeTLS
#define SoNodeTLS SbThreadLocalStorage
#endif
 
class  SbThreadLocalStorage
{
 public:
  static void createStorage(size_t& classThreadId, const size_t byteSize, SoInitTLSClassCB* initFunc=NULL, SoExitTLSClassCB* exitFunc=NULL, const char* funcName=NULL);
 
  static void deleteStorage( size_t& classThreadId, const char* funcName=NULL );
 
  static bool isInitialized(const size_t classThreadId);
 
  static void *getStorage(const size_t classThreadId);
 
private:
  static void initThreadLocalStorage();
 
  static void closeThreadLocalStorage();
 
private:
  static void initClass();
 
  static void exitClass();
 
  template<typename StructName, typename ClassName>
  static StructName*
  getStruct()
  {
    return static_cast<StructName*>(SbThreadLocalStorage::getStorage(ClassName::MT_Id));
  }
 
  template<typename StructName, typename ClassName>
  static StructName*
  getStruct(const ClassName*)
  {
    return getStruct<StructName, ClassName>();
  }
 
  static bool isInitialized();
 
};
 
#endif //_SB_THREAD_LOCAL_STORAGE_H_