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...
//windows_shared_memory is destroyed when the last attached process dies... } else{ //Open already created shared memory object. windows_shared_memory shm (open_only,"MySharedMemory", read_only); //Map the whole shared memory in this process mapped_region region(shm, read_only); //Check...
//windows_shared_memory is destroyed when the last attached process dies... } else{ //Open already created shared memory object. windows_shared_memory shm (open_only, "MySharedMemory", read_only); //Map the whole shared memory in this process mapped_region region(shm, read_only); //Che...
cout << "boost main cc" << endl; string share_name = "my_shared_memory"; // 尝试删除共享内存对象 (同时判断某个共享内存是否存在) if(shared_memory_object::remove(share_name.c_str())) { // cout << "Shared memory object exists" << endl; } else { // cout << "Shared memory obj...
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。这个类代表了一个内存区...
shm_obj.truncate(10000); //不用了记得移除共享内存 shared_memory_object::remove("shared_memory"); //2、映射 //一旦创建或打开,一个进程只需要在该进程的地址空间中映射共享内存对象。 //用户可以映射整个共享内存或者只是其中的一部分。映射过程是通过 mapped_region 类来完成的。 std::size_t ShmSize...
例如,使用boost::interprocess::shared_memory_object::remove()函数来删除共享内存对象。 在编码过程中,要注意正确处理异常情况,确保在任何情况下都能正确释放共享内存资源。可以使用RAII(资源获取即初始化)技术,通过封装共享内存对象的类来自动管理资源的释放。 在设计进程间通信的架构时,要考虑到共享内存的生命周期...
Creating shared memory #include <boost/interprocess/shared_memory_object.hpp> #include <iostream> using namespace boost::interprocess; int main() { shared_memory_object shdmem{open_or_create, "Boost", read_write}; shdmem.truncate(1024); std::cout << shdmem.get_name() << '\n'; offset...
不清楚 // 构建新的托管共享内存区 bip::managed_shared_memory segment(bip::create_only,"MySha...
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