Inventor/threads/SbThreadLocalStorage.h

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/*=======================================================================
 *** 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      ***
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 ***                   COPYRIGHT (C) 1996-2018 BY FEI S.A.S,                        ***
 ***                        BORDEAUX, FRANCE                                        ***
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**=======================================================================*/
/*=======================================================================
** 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_

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Open Inventor Toolkit reference manual, generated on 15 Mar 2023
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