#include<boost/interprocess/sync/interprocess_mutex.hpp>structSharedData{interprocess_mutexmutex;intcounter=0;};// 写入进程managed_shared_memorysegment(open_or_create,"SyncSHM",4096);SharedData*data=segment.find_or_construct<SharedData>("Data")();{scoped_lock<interprocess_mutex>lock(data->mutex);...
In regular shared memory, individual bytes are directly accessed to read or write data. Managed shared memory uses member functions such as construct(), which expects a type as a template parameter. The member function expects a name to denote the object created in the managed shared memory. T...
typedef vector<ValueType, ShmemAllocator> SharedVector; int main() { // 创建托管共享内存(自动管理生命周期) managed_shared_memory segment(open_or_create, "ManagedSHM", 65536); // 构造共享vector SharedVector* vec = segment.find_or_construct<SharedVector>("MyVector") (segment.get_allocator<Valu...
} remover;//Create a new segment with given name and sizemanaged_shared_memory segment(create_only,"MySharedMemory",65536);//Initialize shared memory STL-compatible allocatorconstShmemAllocator alloc_inst (segment.get_segment_manager());//Construct a vector named "MyVector" in shared memory with...
managed_shared_memory segment(create_only, "MySharedMemory", ); //Initialize shared memory STL-compatible allocator const ShmemAllocator alloc_inst (segment.get_segment_manager()); //Construct a vector named "MyVector" in shared memory with argument alloc_inst MyVector *myvector = segment.const...
#include <boost/interprocess/managed_shared_memory.hpp> #include <iostream> using namespace boost::interprocess; int main() { try { shared_memory_object::remove("Boost"); managed_shared_memory managed_shm{open_or_create, "Boost", 1024}; int *i = managed_shm.construct<int>("Integer")[40...
managed_shared_memory.construct造成的性能损失 2015-10-08 16:37 −boost中的IPC进程间通信非常好用,可以直接在共享内存上创建对象,相当于new分配器,实测发现它的分配算法还是有点耗时。第一个测试代码仅仅分配一次,然后频繁的复制,每秒钟可以复制4200次左右。 // HelloBoostIPC.cpp : Defines the entry point ...
autoref=construct(object,1001,"lyshark",24,"男"); cout<<"姓名: "<<ref->uname<<endl; object.free(ref); object.free(ptr); std::system("pause"); return0; } 2.3 使用SharedPtr智能指针 boost::shared_ptr是Boost库中的一个智能指针,用于自动管理动态分配的内存。它跟踪有多少个shared_ptr实例共享...
问boost：：32和64位进程之间的进程间共享内存EN共享内存出自 System V 标准，是众多 IPC 解决方案中最...
managed_shared_memory::segment_manager>CharAllocator;//使用新建的分配器定义string对应的数据类型基于boost::interprocess::basic_stirng,经过分配器访问段管理器typedef boost::interprocess::basic_string<char, std::char_traits<char>, CharAllocator>string;//find_or_construct创建string实例需要知道那个段管理器...