Boris wrote:
On Mon, 01 Sep 2008 17:52:52 +0200, Ion Gaztañaga <igaztanaga@gmail.com> wrote:
[...]I don't have much idea about async I/O but we can try to write something once we know what we need. I might be completly wrong but boost::interprocess::shared_memory_object is based on a file descriptor (shm_open in unix and a plan file on windows) so we can just obtain the handle and see if select() and WaitForMultipleObject() work on them. After all, write() should work on UNIX with a shared memory object descritor.
Hm, sounds like a good idea. Is there any method I could call to access the file descriptor and handle? Then I could try and use the same Boost.Asio I/O objects as above to check if the idea basically works.
Not yet ;-) But you can just take shared_memory_object class and modify it adding a function called get_os_handle(): class shared_memory_object { private: file_handle_t m_handle; mode_t m_mode; std::string m_filename; //... public: file_handle_t get_os_handle() const { return m_handle; } } file_handle_t is an int in UNIX and void * (HANDLE) in windows. I think that's all we need.
Boris
Regards, Ion