| ////////////////////////////////////////////////////////////////////////////// |
| // |
| // (C) Copyright Ion Gaztanaga 2006-2009. Distributed under the Boost |
| // Software License, Version 1.0. (See accompanying file |
| // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
| // |
| // See http://www.boost.org/libs/interprocess for documentation. |
| // |
| ////////////////////////////////////////////////////////////////////////////// |
| #include <boost/interprocess/detail/config_begin.hpp> |
| //[doc_anonymous_semaphoreA |
| #include <boost/interprocess/shared_memory_object.hpp> |
| #include <boost/interprocess/mapped_region.hpp> |
| #include <iostream> |
| #include "doc_anonymous_semaphore_shared_data.hpp" |
| |
| using namespace boost::interprocess; |
| |
| int main () |
| { |
| //Remove shared memory on construction and destruction |
| struct shm_remove |
| { |
| shm_remove() { shared_memory_object::remove("MySharedMemory"); } |
| ~shm_remove(){ shared_memory_object::remove("MySharedMemory"); } |
| } remover; |
| |
| //Create a shared memory object. |
| shared_memory_object shm |
| (create_only //only create |
| ,"MySharedMemory" //name |
| ,read_write //read-write mode |
| ); |
| |
| //Set size |
| shm.truncate(sizeof(shared_memory_buffer)); |
| |
| //Map the whole shared memory in this process |
| mapped_region region |
| (shm //What to map |
| ,read_write //Map it as read-write |
| ); |
| |
| //Get the address of the mapped region |
| void * addr = region.get_address(); |
| |
| //Construct the shared structure in memory |
| shared_memory_buffer * data = new (addr) shared_memory_buffer; |
| |
| const int NumMsg = 100; |
| |
| //Insert data in the array |
| for(int i = 0; i < NumMsg; ++i){ |
| data->nempty.wait(); |
| data->mutex.wait(); |
| data->items[i % shared_memory_buffer::NumItems] = i; |
| data->mutex.post(); |
| data->nstored.post(); |
| } |
| |
| return 0; |
| } |
| //] |
| #include <boost/interprocess/detail/config_end.hpp> |