---

GatewaySemaphore.hpp

#if   !defined(__GATEWAYSEMAPHORE_HPP)
#define __GATEWAYSEMAPHORE_HPP

/*
  CoreLinux++ 
  Copyright (C) 1999,2000 CoreLinux Consortium
  
   The CoreLinux++ Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public License as
   published by the Free Software Foundation; either version 2 of the
   License, or (at your option) any later version.

   The CoreLinux++ Library Library is distributed in the hope that it will 
   be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public
   License along with the GNU C Library; see the file COPYING.LIB.  If not,
   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.  
*/

#if   !defined(__COMMON_HPP)
#include <Common.hpp>
#endif

#if   !defined(__SEMAPHORE_HPP)
#include <Semaphore.hpp>
#endif

#if   !defined(__MAP_HPP)
#include <Map.hpp>
#endif

namespace corelinux
{
   DECLARE_CLASS( GatewaySemaphore );

   CORELINUX_MAP
      ( 
         ThreadIdentifier, 
         Count , 
         std::less<ThreadIdentifier>,
         GatewayClient
      );

   class GatewaySemaphore : public Semaphore
   {
   public:

      //
      // Constructors and destructors
      //

                        GatewaySemaphore
                           ( 
                              SemaphoreGroupPtr,
                              SemaphoreIdentifierRef,
                              Count ,
                              bool  Recursive = false,
                              bool  Balking = false
                           ) throw ( NullPointerException );


      virtual           ~GatewaySemaphore( void );

      //
      // Accessors
      //

      
      virtual  bool isLocked( void );


      virtual  bool  isAnOwner( void );

      virtual  Counter  getOwnerRecursionQueueLength( void );


      //
      // Mutators
      //
         
      
      virtual  SemaphoreOperationStatus lockWithWait(void)
                  throw( SemaphoreException );

      
      virtual  SemaphoreOperationStatus lockWithNoWait(void)
                  throw( SemaphoreException );


      
      //      virtual  SemaphoreOperationStatus   lockWithTimeOut( Timer )
      //                   throw(SemaphoreException) = 0;
      
      
      virtual  SemaphoreOperationStatus release(void)
                  throw( SemaphoreException );

   protected:

      //
      // Constructors
      //

                           GatewaySemaphore( void ) throw( Assertion );


                           GatewaySemaphore( GatewaySemaphoreCref ) 
                              throw( Assertion );

      //
      // Operator overloads
      //

               GatewaySemaphoreRef operator=( GatewaySemaphoreCref ) 
                              throw( Assertion );

      //
      // Mutators
      //

               SemaphoreOperationStatus lockAndAdd
                  ( 
                     ThreadIdentifierRef aTid, 
                     Int aFlag = 0 
                  );


   private:


               Count          theMaxCount;


               GatewayClient  theClients;

   };
}

#endif // if !defined(__GATEWAYSEMAPHORE_HPP)
/*
   Common rcs information do not modify
   $Author: prudhomm $
   $Revision: 1.4 $
   $Date: 2000/08/31 22:52:20 $
   $Locker:  $
*/

---

This is the CoreLinux++ reference manual
Provided by The CoreLinux Consortium