1 ////////////////////////////////////////////////////////////////////////////// 2 // 3 // (C) Copyright Ion Gaztanaga 2006-2012. Distributed under the Boost 4 // Software License, Version 1.0. (See accompanying file 5 // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) 6 // 7 // See http://www.boost.org/libs/interprocess for documentation. 8 // 9 ////////////////////////////////////////////////////////////////////////////// 10 #include <boost/interprocess/detail/config_begin.hpp> 11 //[doc_anonymous_semaphoreA 12 #include <boost/interprocess/shared_memory_object.hpp> 13 #include <boost/interprocess/mapped_region.hpp> 14 #include <iostream> 15 #include "doc_anonymous_semaphore_shared_data.hpp" 16 17 using namespace boost::interprocess; 18 main()19int main () 20 { 21 //Remove shared memory on construction and destruction 22 struct shm_remove 23 { 24 shm_remove() { shared_memory_object::remove("MySharedMemory"); } 25 ~shm_remove(){ shared_memory_object::remove("MySharedMemory"); } 26 } remover; 27 //<- 28 (void)remover; 29 //-> 30 31 //Create a shared memory object. 32 shared_memory_object shm 33 (create_only //only create 34 ,"MySharedMemory" //name 35 ,read_write //read-write mode 36 ); 37 38 //Set size 39 shm.truncate(sizeof(shared_memory_buffer)); 40 41 //Map the whole shared memory in this process 42 mapped_region region 43 (shm //What to map 44 ,read_write //Map it as read-write 45 ); 46 47 //Get the address of the mapped region 48 void * addr = region.get_address(); 49 50 //Construct the shared structure in memory 51 shared_memory_buffer * data = new (addr) shared_memory_buffer; 52 53 const int NumMsg = 100; 54 55 //Insert data in the array 56 for(int i = 0; i < NumMsg; ++i){ 57 data->nempty.wait(); 58 data->mutex.wait(); 59 data->items[i % shared_memory_buffer::NumItems] = i; 60 data->mutex.post(); 61 data->nstored.post(); 62 } 63 64 return 0; 65 } 66 //] 67 #include <boost/interprocess/detail/config_end.hpp> 68