As the example above, region writes the number 99 to the beginning of the shared memory. region2 the reads the same location in shared memory and writes the number to the standard ouptu stream. Even though region and region2 represent different memory areas within the process, the program ...
Example 33.6. Using managed shared memory #include <boost/interprocess/managed_shared_memory.hpp> #include <iostream> using namespace boost::interprocess; int main() { shared_memory_object::remove("Boost"); managed_shared_memory managed_shm{open_or_create, "Boost", 1024}; int *i = managed...
In Boost.Interprocess the class boost::interprocess::shared_memory_object is used to represent shared memory. Include the header file boost/interprocess/shared_memory_object.hpp to use this class.Example 33.1. Creating shared memory #include <boost/interprocess/shared_memory_object.hpp> #include <io...
问“managed_shared_memory”应该分配多少内存？(boost)EN你不能计算它，因为在运行时会根据你的分配/释...
#include <boost/shared_ptr.hpp> #include <boost/make_shared.hpp> void example3() { typedef boost::shared_ptr<int> int_sptr_t; std::set<int_sptr_t, ptr_cmp<int> > s; s.insert(boost::make_shared<int>(1)); s.insert(boost::make_shared<int>(0)); // ... assert(**s.begin...
编译:[root@localhost boost_1_46_0]#c++ -I /usr/local/boost_1_46_0 example.cpp -o example 运行:[root@localhost boost_1_46_0]#echo 1 2 3 | ./example 显示结果; 3 6 9 4、Separately-Compiled的编译,需要用到bjam(boost jam),这是专门为boost开发的编译工具。 进到/usr/local/boost_1_...
You can just allocate a portion of a shared memory segment, copy the message to that buffer, send the offset of that portion of shared memory to another process, and you are done. Let's see the example: 你只需要分配共享内存段中的一块,将message拷贝到那里,将共享内存中该块的偏移地址发送给...
WebSocket 是一种用于实现双向通信的网络协议，它基于 TCP 协议，可以实现服务器和客户端之间的实时消息...
queue_routine(std::function<void()>(explosion)); } warp_data[warp_index] -= 3; if (rand() % parallel_factor == 0) { // read-write lock example: multiple reading blocks writing std::shared_ptr<std::atomic<int32_t>> shared_value = std::make_shared<std::atomic<int32_t>>(-0x...
which for example with boost 1.87.0 produces the output: The following Boost libraries have portions that require a separate build and installation step. Any library not listed here can be used by including the headers only. The Boost libraries requiring separate building and installation are: - ...