Changeset - r979:43a91b33f374
« 978:eb252f
980:48e173 »
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deba@inf.elte.hu
deba@inf.elte.hu
Thread safe map construction and destruction (#223) It currently support pthread and windows threads.
0 7 1
default
8 files changed with 124 insertions and 1 deletions:
lemon/bits/lock.h
65
CMakeLists.txt
4
lemon/Makefile.am
1
lemon/bits/alteration_notifier.h
6
1
lemon/bits/windows.cc
30
lemon/bits/windows.h
10
lemon/config.h.cmake
2
lemon/config.h.in
6
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lemon/bits/lock.h
Ignore white space 4 line context
1 
/* -*- mode: C++; indent-tabs-mode: nil; -*-
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 *
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 * This file is a part of LEMON, a generic C++ optimization library.
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 *
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 * Copyright (C) 2003-2012
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 * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
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 * (Egervary Research Group on Combinatorial Optimization, EGRES).
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 *
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 * Permission to use, modify and distribute this software is granted
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 * provided that this copyright notice appears in all copies. For
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 * precise terms see the accompanying LICENSE file.
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 *
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 * This software is provided "AS IS" with no warranty of any kind,
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 * express or implied, and with no claim as to its suitability for any
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 * purpose.
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 *
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 */
18 

			




	
	19
	
		
#ifndef LEMON_BITS_LOCK_H


			




	
	20
	
		
#define LEMON_BITS_LOCK_H


			




	
	21
	
		

			




	
	22
	
		
#include <lemon/config.h>


			




	
	23
	
		
#if defined(LEMON_USE_PTHREAD)


			




	
	24
	
		
#include <pthread.h>


			




	
	25
	
		
#elif defined(LEMON_USE_WIN32_THREADS)


			




	
	26
	
		
#include <lemon/bits/windows.h>


			




	
	27
	
		
#endif


			




	
	28
	
		

			




	
	29
	
		
namespace lemon {


			




	
	30
	
		
  namespace bits {


			




	
	31
	
		

			




	
	32
	
		
#if defined(LEMON_USE_PTHREAD)


			




	
	33
	
		
    class Lock {


			




	
	34
	
		
    public:


			




	
	35
	
		
      Lock() {


			




	
	36
	
		
	pthread_mutex_init(&_lock, 0);


			




	
	37
	
		
      }


			




	
	38
	
		
      ~Lock() {


			




	
	39
	
		
	pthread_mutex_destroy(&_lock);


			




	
	40
	
		
      }


			




	
	41
	
		
      void lock() {


			




	
	42
	
		
	pthread_mutex_lock(&_lock);


			




	
	43
	
		
      }


			




	
	44
	
		
      void unlock() {


			




	
	45
	
		
	pthread_mutex_unlock(&_lock);


			




	
	46
	
		
      }


			




	
	47
	
		

			




	
	48
	
		
    private:


			




	
	49
	
		
      pthread_mutex_t _lock;


			




	
	50
	
		
    };


			




	
	51
	
		
#elif defined(LEMON_USE_WIN32_THREADS)


			




	
	52
	
		
    class Lock : public WinLock {};


			




	
	53
	
		
#else


			




	
	54
	
		
    class Lock {


			




	
	55
	
		
    public:


			




	
	56
	
		
      Lock() {}


			




	
	57
	
		
      ~Lock() {}


			




	
	58
	
		
      void lock() {}


			




	
	59
	
		
      void unlock() {}


			




	
	60
	
		
    };    


			




	
	61
	
		
#endif


			




	
	62
	
		
  }


			




	
	63
	
		
}


			




	
	64
	
		

			




	
	65
	
		
#endif

			




        

    

    

    

        

            

                

                    CMakeLists.txt
                

                

                  
                  
                  
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	...
	...
	
		
@@ -115,4 +115,8 @@


			




	115
	115
	
		
SET(LEMON_HAVE_LONG_LONG ${HAVE_LONG_LONG})


			




	116
	116
	
		

			




	
	117
	
		
INCLUDE(FindThreads)


			




	
	118
	
		
SET(LEMON_USE_PTHREAD ${CMAKE_USE_PTHREADS_INIT})


			




	
	119
	
		
SET(LEMON_USE_WIN32_THREADS ${CMAKE_USE_WIN32_THREADS_INIT})


			




	
	120
	
		

			




	117
	121
	
		
ENABLE_TESTING()


			




	118
	122
	
		

			




        

    

    

    

        

            

                

                    lemon/Makefile.am
                

                

                  
                  
                  
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	...
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@@ -139,4 +139,5 @@


			




	139
	139
	
		
	lemon/bits/graph_adaptor_extender.h \


			




	140
	140
	
		
	lemon/bits/graph_extender.h \


			




	
	141
	
		
	lemon/bits/lock.h \


			




	141
	142
	
		
	lemon/bits/map_extender.h \


			




	142
	143
	
		
	lemon/bits/path_dump.h \

			




        

    

    

    

        

            

                

                    lemon/bits/alteration_notifier.h
                

                

                  
                  
                  
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	...
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@@ -24,4 +24,5 @@


			




	24
	24
	
		

			




	25
	25
	
		
#include <lemon/core.h>


			




	
	26
	
		
#include <lemon/bits/lock.h>


			




	26
	27
	
		

			




	27
	28
	
		
//\ingroup graphbits


			




	...
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@@ -252,5 +253,5 @@


			




	252
	253
	
		
    typedef std::list<ObserverBase*> Observers;


			




	253
	254
	
		
    Observers _observers;


			




	254
	
	
		

			




	
	255
	
		
    lemon::bits::Lock _lock;


			




	255
	256
	
		

			




	256
	257
	
		
  public:


			




	...
	...
	
		
@@ -333,12 +334,16 @@


			




	333
	334
	
		

			




	334
	335
	
		
    void attach(ObserverBase& observer) {


			




	
	336
	
		
      _lock.lock();


			




	335
	337
	
		
      observer._index = _observers.insert(_observers.begin(), &observer);


			




	336
	338
	
		
      observer._notifier = this;


			




	
	339
	
		
      _lock.unlock();


			




	337
	340
	
		
    }


			




	338
	341
	
		

			




	339
	342
	
		
    void detach(ObserverBase& observer) {


			




	
	343
	
		
      _lock.lock();


			




	340
	344
	
		
      _observers.erase(observer._index);


			




	341
	345
	
		
      observer._index = _observers.end();


			




	342
	346
	
		
      observer._notifier = 0;


			




	
	347
	
		
      _lock.unlock();


			




	343
	348
	
		
    }


			




	344
	349
	
		

			




        

    

    

    

        

            

                

                    lemon/bits/windows.cc
                

                

                  
                  
                  
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@@ -131,4 +131,34 @@


			




	131
	131
	
		
#endif


			




	132
	132
	
		
    }


			




	
	133
	
		

			




	
	134
	
		
    WinLock::WinLock() {


			




	
	135
	
		
#ifdef WIN32


			




	
	136
	
		
      CRITICAL_SECTION *lock = new CRITICAL_SECTION;


			




	
	137
	
		
      InitializeCriticalSection(lock);


			




	
	138
	
		
      _repr = lock;


			




	
	139
	
		
#endif


			




	
	140
	
		
    }


			




	
	141
	
		
    


			




	
	142
	
		
    WinLock::~WinLock() {


			




	
	143
	
		
#ifdef WIN32


			




	
	144
	
		
      CRITICAL_SECTION *lock = static_cast<CRITICAL_SECTION*>(_repr);


			




	
	145
	
		
      DeleteCriticalSection(lock);


			




	
	146
	
		
      delete lock;


			




	
	147
	
		
#endif


			




	
	148
	
		
    }


			




	
	149
	
		

			




	
	150
	
		
    void WinLock::lock() {


			




	
	151
	
		
#ifdef WIN32


			




	
	152
	
		
      CRITICAL_SECTION *lock = static_cast<CRITICAL_SECTION*>(_repr);


			




	
	153
	
		
      EnterCriticalSection(lock);


			




	
	154
	
		
#endif


			




	
	155
	
		
    }


			




	
	156
	
		

			




	
	157
	
		
    void WinLock::unlock() {


			




	
	158
	
		
#ifdef WIN32


			




	
	159
	
		
      CRITICAL_SECTION *lock = static_cast<CRITICAL_SECTION*>(_repr);


			




	
	160
	
		
      LeaveCriticalSection(lock);


			




	
	161
	
		
#endif


			




	
	162
	
		
    }


			




	133
	163
	
		
  }


			




	134
	164
	
		
}

			




        

    

    

    

        

            

                

                    lemon/bits/windows.h
                

                

                  
                  
                  
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@@ -29,4 +29,14 @@


			




	29
	29
	
		
    std::string getWinFormattedDate();


			




	30
	30
	
		
    int getWinRndSeed();


			




	
	31
	
		

			




	
	32
	
		
    class WinLock {


			




	
	33
	
		
    public:


			




	
	34
	
		
      WinLock();


			




	
	35
	
		
      ~WinLock();


			




	
	36
	
		
      void lock();


			




	
	37
	
		
      void unlock();


			




	
	38
	
		
    private:


			




	
	39
	
		
      void *_repr;


			




	
	40
	
		
    };


			




	31
	41
	
		
  }


			




	32
	42
	
		
}

			




        

    

    

    

        

            

                

                    lemon/config.h.cmake
                

                

                  
                  
                  
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@@ -7,2 +7,4 @@


			




	7
	7
	
		
#cmakedefine LEMON_HAVE_CLP 1


			




	8
	8
	
		
#cmakedefine LEMON_HAVE_CBC 1


			




	
	9
	
		
#cmakedefine LEMON_USE_PTHREAD 1


			




	
	10
	
		
#cmakedefine LEMON_USE_WIN32_THREADS 1

			




        

    

    

    

        

            

                

                    lemon/config.h.in
                

                

                  
                  
                  
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	25
	25
	
		
/* Define to 1 if you have CBC */


			




	26
	26
	
		
#undef LEMON_HAVE_CBC


			




	
	27
	
		

			




	
	28
	
		
/* Define to 1 if you have pthread */


			




	
	29
	
		
#undef LEMON_USE_PTHREAD


			




	
	30
	
		

			




	
	31
	
		
/* Define to 1 if you have win32 threads */


			




	
	32
	
		
#undef LEMON_USE_WIN32_THREADS


			




        

    






    
    



    


    

     
    
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