Float *或向量在Boost共享结构

Question

我有下面的代码，它写结构来提升共享内存。我无法添加新的float *或Vector。升压版本：1.59.0获得一堆错误作为

error: no matching function for call to ‘boost::interprocess::allocator<boost::container::container_detail::list_node<fl‌​oat, boost::interprocess::offset_ptr<void>......." 

尝试：

typedef boost::interprocess::list<float, salloc::rebind<float>::other> shared_float; 

任何建议如何添加浮子*或将被添加来提高共享存储器结构矢量

#include <iostream> 
#include <string> 
#include <cstdlib> 
#include <boost/interprocess/ipc/message_queue.hpp> 
#include <boost/scoped_ptr.hpp> 
#include <boost/interprocess/shared_memory_object.hpp> 
#include <boost/interprocess/managed_shared_memory.hpp> 
#include <boost/interprocess/mapped_region.hpp> 
#include <boost/interprocess/allocators/allocator.hpp> 
#include <boost/interprocess/containers/string.hpp> 
#include <boost/interprocess/containers/vector.hpp> 
#include <boost/shared_array.hpp> 
#include <boost/interprocess/containers/list.hpp> 
#include <boost/version.hpp> 

using namespace boost::interprocess; 


struct InData; 
typedef boost::interprocess::allocator<InData, managed_shared_memory::segment_manager> salloc; 
typedef boost::interprocess::basic_string<char, std::char_traits<char>, salloc::rebind<char>::other> shared_string; 

struct InData { 
    int X, Y, H, W; 

    InData(salloc alloc) : Label(alloc) {} 
    shared_string Label; 
}; 

int main() { 

    std::cout << "Using Boost " 
       << BOOST_VERSION/100000  << "." // major version 
       << BOOST_VERSION/100 % 1000 << "." // minor version 
       << BOOST_VERSION % 100    // patch level 
       << std::endl; 

    shared_memory_object::remove("MySharedMemory"); 
    managed_shared_memory managed_shm(create_only, "MySharedMemory", 10000); 

    salloc alloc_inst(managed_shm.get_segment_manager()); 

    InData tData(alloc_inst); // = managed_shm.construct<InData>("InDataStructure")(); 

    tData.Label = "Hello World"; 
    tData.H = 1; 
    tData.W = 1; 
    tData.Y = 1; 
    tData.X = 1; 

    typedef boost::interprocess::list<InData, salloc> MyList; 
    MyList *myvector = managed_shm.construct<MyList>("MyVector")(alloc_inst); 

    myvector->push_back(tData); 
} 

Answer 1

这个编译，看起来像你想要的：

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#include <iostream> 
#include <string> 
#include <cstdlib> 
#include <boost/interprocess/ipc/message_queue.hpp> 
#include <boost/scoped_ptr.hpp> 
#include <boost/interprocess/shared_memory_object.hpp> 
#include <boost/interprocess/managed_shared_memory.hpp> 
#include <boost/interprocess/mapped_region.hpp> 
#include <boost/interprocess/allocators/allocator.hpp> 
#include <boost/interprocess/containers/string.hpp> 
#include <boost/interprocess/containers/vector.hpp> 
#include <boost/shared_array.hpp> 
#include <boost/interprocess/containers/list.hpp> 
#include <boost/version.hpp> 

using namespace boost::interprocess; 


struct InData; 
typedef boost::interprocess::allocator<InData, managed_shared_memory::segment_manager> salloc; 
typedef boost::interprocess::basic_string<char, std::char_traits<char>, salloc::rebind<char>::other> shared_string; 
typedef boost::interprocess::vector<float, salloc::rebind<float>::other> shared_float_vec; 

struct InData { 
    int X, Y, H, W; 

    InData(salloc alloc) : Label(alloc), Floats(alloc) {} 
    shared_string Label; 
    shared_float_vec Floats; 
}; 

int main() { 

    std::cout << "Using Boost " 
       << BOOST_VERSION/100000  << "." // major version 
       << BOOST_VERSION/100 % 1000 << "." // minor version 
       << BOOST_VERSION % 100    // patch level 
       << std::endl; 

    shared_memory_object::remove("MySharedMemory"); 
    managed_shared_memory managed_shm(create_only, "MySharedMemory", 10000); 

    salloc alloc_inst(managed_shm.get_segment_manager()); 

    InData tData(alloc_inst); // = managed_shm.construct<InData>("InDataStructure")(); 

    tData.Label = "Hello World"; 
    tData.Floats.push_back(3.14); 
    tData.H = 1; 
    tData.W = 1; 
    tData.Y = 1; 
    tData.X = 1; 

    typedef boost::interprocess::list<InData, salloc> MyList; 
    MyList *myvector = managed_shm.construct<MyList>("MyVector")(alloc_inst); 

    myvector->push_back(tData); 
}