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<ValueType>()); // 添加数据 vec->push_back(42); vec->push_back(88); // 其他进程可通过相同名称访问该vect...
managed_shared_memory::segment_manager>ShmemAllocator;typedefvector<ValueType,ShmemAllocator>SharedVector;intmain(){// 创建托管共享内存(自动管理生命周期)managed_shared_memorysegment(open_or_create
class boost::interprocess::shared_memory_object which can be used to create and manage shared memory. In pratice, this class is raraly used because it requires the program to read and write individual bytes from and to the shared memory. Boost.Interprocess provides 1. boost::interprocess::mana...
//Open already created shared memory object. shared_memory_object shm (open_only, "MySharedMemory", read_only); //Map the whole shared memory in this process mapped_region region(shm, read_only); //Check that memory was initialized to 1 char *mem = static_cast<char*>(region.get_addres...
shared_memory_object::remove("shared_memory"); 更多关于shared_memory_object的详情,请参考 boost::interprocess::shared_memory_object。 映射共享内存片段 一旦被创建或打开,一个进程必须映射共享内存对象至进程的地址空间。使用者可以映射整个或部分共享内存。使用类mapped_region完成映射过程。这个类...
boost::ptr_vector 独占它所包含的对象,因而容器之外的共享指针不能共享所有权,这跟 std::vector<boost::shared_ptr<int> > 相反。除了 boost::ptr_vector 之外,专门用于管理动态分配对象的容器还包括:boost::ptr_deque, boost::ptr_list, boost::ptr_set, boost::ptr_map, boost::ptr_unordered_set 和 ...
#include <boost/interprocess/ipc/message_queue.hpp> #include <iostream> #include <vector> using namespace boost::interprocess; int main () { BOOST_TRY{ //Erase previous message queue message_queue::remove("message_queue"); //Create a message_queue. message_queue mq (create_only //only ...
3.共享内存容器(Shared Memory Containers):Boost.Interprocess提供了一些容器类,如vector、map、list等,这些容器可以在共享内存中存储数据。共享内存容器提供了与STL容器相似的接口和功能,但可以用于多个进程之间的数据共享。 4.共享内存分配器(Shared Memory Allocators):Boost.Interprocess提供了共享内存分配器,可以在共...
让我们先来看看std库中的容器。以vector为例,它是一个动态数组,可以自动调整大小,让我们可以高效地存储和操作数据。比如: 复制 #include<vector>#include<iostream>intmain(){std::vector<int>myVector;myVector.push_back(1);myVector.push_back(2);myVector.push_back(3);for(int i:myVector){std::cout...
typedef managed_shared_memory::segment_manager segment_manager_t; typedef allocator<void, segment_manager_t> void_allocator; typedef allocator<int, segment_manager_t> int_allocator; typedef vector<int, int_allocator> int_vector; typedef allocator<int_vector, segment_manager_t> int_vector_allocator...