testPushBackVector.cc

/**
 ********************************************************************************
 *  @file   testPushBackVector.cc
 *  @brief  A brief description of the content of the file.
 ********************************************************************************
 *
 *  A potentially lengthy description of the content of the file.
 *  You can use list :
 *  \li first elem,
 *  \li second elen,
 *  \li last elem.\n
 *
 *  You can use HTML tags <b>bold</b>, <i>italic</i>
 *  And doxygen tags ex :
 *  \code int resultI = anIntI + anotherIntI \encode
 *
 *  @date   Jul 18, 2012
 *  @author gg01347
 *
 ********************************************************************************
 **/

#include <boost/interprocess/shared_memory_object.hpp>
#include <boost/interprocess/managed_shared_memory.hpp>
#include <boost/interprocess/offset_ptr.hpp>
#include <boost/interprocess/smart_ptr/shared_ptr.hpp>
#include <boost/interprocess/smart_ptr/weak_ptr.hpp>
#include <boost/interprocess/allocators/allocator.hpp>
#include <boost/interprocess/sync/interprocess_upgradable_mutex.hpp>
#include <boost/interprocess/containers/map.hpp>
#include <boost/interprocess/containers/vector.hpp>
#include <boost/multi_index_container.hpp>
#include <boost/multi_index/ordered_index.hpp>
#include <boost/multi_index/hashed_index.hpp>
#include <boost/multi_index/member.hpp>
#include <boost/multi_index/mem_fun.hpp>

using boost::interprocess::managed_shared_memory;
using boost::interprocess::allocator;
using boost::interprocess::managed_shared_ptr;
using boost::interprocess::managed_weak_ptr;
using boost::interprocess::anonymous_instance;
using boost::interprocess::make_managed_shared_ptr;

typedef managed_shared_memory::segment_manager  segment_manager_t;
typedef allocator<void, segment_manager_t> void_allocator;
typedef long long  idType;
typedef unsigned long long  releaseType;

// Define a template SharableDataTypes
template<class T, class Key=int> struct SharableDataTypes {
    typedef typename managed_shared_ptr<T, managed_shared_memory>::type         SharedPtrType;
    typedef typename managed_weak_ptr  <T, managed_shared_memory>::type         WeakPtrType;

    typedef allocator<WeakPtrType, segment_manager_t>                           WeakPtrAllocatorType;

    typedef boost::interprocess::vector<WeakPtrType , WeakPtrAllocatorType>     WeakPtrVectorType;
};

class Data{
private:
    idType id;
    releaseType creationRelease;
public:
    Data(idType i, releaseType r){ id=i; creationRelease=r;}
    const idType getObjectId() const {return id;}
    const releaseType getCreationRelease() const {return creationRelease;}

    // Define type of container storing this kind of data
    typedef boost::multi_index_container<
            SharableDataTypes<Data>::SharedPtrType,
            boost::multi_index::indexed_by<
            boost::multi_index::hashed_unique<BOOST_MULTI_INDEX_CONST_MEM_FUN(Data, const idType, getObjectId)>
    ,boost::multi_index::ordered_non_unique< boost::multi_index::tag<releaseType>, BOOST_MULTI_INDEX_CONST_MEM_FUN(Data, const releaseType,  getCreationRelease)>

    >,
    boost::interprocess::allocator<SharableDataTypes<Data>::SharedPtrType, segment_manager_t>
    > DataContainerType;

};

class DataVectorContainer{
private:
    SharableDataTypes<Data>::WeakPtrVectorType dataWPVector;
public:
    DataVectorContainer(void_allocator * alloc) : dataWPVector(*alloc){};

    void addData (const SharableDataTypes<Data>::SharedPtrType & PData){

        unsigned int sizeBefore = dataWPVector.size();
        unsigned int capacityBefore = dataWPVector.capacity();
        dataWPVector.push_back(PData);
//      std::cerr << "adddataWPVectorElem called with PData.id =" << PData->getObjectId() << " from thread " <<  getpid() << ":" << pthread_self() << std::endl;

        unsigned int sizeAfter = dataWPVector.size();
        unsigned int capacityAfter = dataWPVector.capacity();

        if (dataWPVector.rbegin()->lock()->getObjectId() != PData->getObjectId()){
            std::cerr << "After pushback in dataWPVector vector last elem Id=" <<  dataWPVector.rbegin()->lock()->getObjectId() << " added cable Id =" << PData->getObjectId() << std::endl;
            std::cerr << "--> sizeBefore=" << sizeBefore  << ", capacityBefore=" << capacityBefore << ", sizeAfter=" << sizeAfter<< ", capacityAfter=" << capacityAfter << std::endl;
            printData();
            exit(1);
        }else{

            if (capacityBefore != capacityAfter){
                std::cerr << "After pushback in dataWPVector capacity changed from  " << capacityBefore << " to " << capacityAfter << " without any damage." << std::endl;
                // printData();
            }
        }
    }

    void printData(){
        std::ostringstream oss;
        oss << "dataWPVector[" << std::endl;
        for (SharableDataTypes<Data>::WeakPtrVectorType::iterator cableIt = dataWPVector.begin(); cableIt != dataWPVector.end(); ++cableIt){
            oss << cableIt->lock()->getObjectId() << ", ";
        }
        oss << "]" << std::endl;
        std::cerr << oss.str();
    }
};

int main(int argc, char **argv) {
    boost::interprocess::shared_memory_object::remove("testPushBackVector");
    managed_shared_memory * managedSharedMemorySegment = new managed_shared_memory(boost::interprocess::open_or_create, "testPushBackVector", 1024*1024*10);
    void_allocator * managedSharedMemoryAllocator = new void_allocator(managedSharedMemorySegment->get_segment_manager());

    Data::DataContainerType * dataContainer = managedSharedMemorySegment->construct<Data::DataContainerType >
    (anonymous_instance)(
            Data::DataContainerType::ctor_args_list(),
            Data::DataContainerType::allocator_type(managedSharedMemorySegment->get_segment_manager())
    );

    SharableDataTypes<DataVectorContainer>::SharedPtrType myDataVectorContainer = make_managed_shared_ptr(managedSharedMemorySegment->
            construct<DataVectorContainer>(anonymous_instance)(managedSharedMemoryAllocator), *managedSharedMemorySegment);


    for (unsigned int i = 1; i <= 10000; ++i){
        SharableDataTypes<Data>::SharedPtrType myData = make_managed_shared_ptr(managedSharedMemorySegment->
                construct<Data>(anonymous_instance)(2*i, i), *managedSharedMemorySegment);

        dataContainer->insert(myData);
        myDataVectorContainer->addData(myData);
    }

//  myDataVectorContainer->printData();
    return 0;
}