File: doc_named_mutex.cpp

package info (click to toggle)
boost1.90 1.90.0-5
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 593,168 kB
  • sloc: cpp: 4,190,642; xml: 196,648; python: 34,618; ansic: 23,145; asm: 5,468; sh: 3,776; makefile: 1,162; perl: 1,020; sql: 728; ruby: 676; yacc: 478; java: 77; lisp: 24; csh: 6
file content (64 lines) | stat: -rw-r--r-- 1,822 bytes parent folder | download | duplicates (3)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
//////////////////////////////////////////////////////////////////////////////
//
// (C) Copyright Ion Gaztanaga 2006-2012. 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.
//
//////////////////////////////////////////////////////////////////////////////

//[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;
   BOOST_INTERPROCESS_TRY{
      struct file_remove
      {
         file_remove() { std::remove(test::get_process_id_name()); }
         ~file_remove(){ std::remove(test::get_process_id_name()); }
      } file_remover;
      struct mutex_remove
      {
         mutex_remove() { named_mutex::remove(test::get_process_id_name()); }
         ~mutex_remove(){ named_mutex::remove(test::get_process_id_name()); }
      } remover;
      //<-
      (void)file_remover;
      (void)remover;
      //->

      //Open or create the named mutex
      named_mutex mutex(open_or_create, test::get_process_id_name());

      std::ofstream file(test::get_process_id_name());

      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;
      }
   }
   BOOST_INTERPROCESS_CATCH(interprocess_exception &ex){
      std::cout << ex.what() << std::endl;
      return 1;
   } BOOST_INTERPROCESS_CATCH_END
   return 0;
}
//]