| ////////////////////////////////////////////////////////////////////////////// |
| // |
| // (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_named_mutex |
| #include <boost/interprocess/sync/scoped_lock.hpp> |
| #include <boost/interprocess/sync/named_mutex.hpp> |
| #include <fstream> |
| #include <iostream> |
| #include <cstdio> |
| |
| //<- |
| #include "../test/get_process_id_name.hpp" |
| //-> |
| |
| int main () |
| { |
| using namespace boost::interprocess; |
| try{ |
| struct file_remove |
| { |
| //<- |
| #if 1 |
| file_remove() { std::remove(test::get_process_id_name()); } |
| ~file_remove(){ std::remove(test::get_process_id_name()); } |
| #else |
| //-> |
| file_remove() { std::remove("file_name"); } |
| ~file_remove(){ std::remove("file_name"); } |
| //<- |
| #endif |
| //-> |
| } file_remover; |
| struct mutex_remove |
| { |
| //<- |
| #if 1 |
| mutex_remove() { named_mutex::remove(test::get_process_id_name()); } |
| ~mutex_remove(){ named_mutex::remove(test::get_process_id_name()); } |
| #else |
| //-> |
| mutex_remove() { named_mutex::remove("fstream_named_mutex"); } |
| ~mutex_remove(){ named_mutex::remove("fstream_named_mutex"); } |
| //<- |
| #endif |
| //-> |
| } remover; |
| |
| //Open or create the named mutex |
| //<- |
| #if 1 |
| named_mutex mutex(open_or_create, test::get_process_id_name()); |
| #else |
| //-> |
| named_mutex mutex(open_or_create, "fstream_named_mutex"); |
| //<- |
| #endif |
| //-> |
| |
| //<- |
| #if 1 |
| std::ofstream file(test::get_process_id_name()); |
| #else |
| //-> |
| std::ofstream file("file_name"); |
| //<- |
| #endif |
| //-> |
| |
| for(int i = 0; i < 10; ++i){ |
| |
| //Do some operations... |
| |
| //Write to file atomically |
| scoped_lock<named_mutex> lock(mutex); |
| file << "Process name, "; |
| file << "This is iteration #" << i; |
| file << std::endl; |
| } |
| } |
| catch(interprocess_exception &ex){ |
| std::cout << ex.what() << std::endl; |
| return 1; |
| } |
| return 0; |
| } |
| //] |
| #include <boost/interprocess/detail/config_end.hpp> |