1// 2002-01-23  Loren J. Rittle <rittle@labs.mot.com> <ljrittle@acm.org>
2// Adpated from libstdc++/5444 submitted by markus.breuer@materna.de
3//
4// Copyright (C) 2002-2015 Free Software Foundation, Inc.
5//
6// This file is part of the GNU ISO C++ Library.  This library is free
7// software; you can redistribute it and/or modify it under the
8// terms of the GNU General Public License as published by the
9// Free Software Foundation; either version 3, or (at your option)
10// any later version.
11//
12// This library is distributed in the hope that it will be useful,
13// but WITHOUT ANY WARRANTY; without even the implied warranty of
14// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15// GNU General Public License for more details.
16//
17// You should have received a copy of the GNU General Public License along
18// with this library; see the file COPYING3.  If not see
19// <http://www.gnu.org/licenses/>.
20
21// { dg-do run { target *-*-freebsd* *-*-dragonfly* *-*-netbsd* *-*-linux* *-*-gnu* *-*-solaris* *-*-cygwin *-*-darwin* } }
22// { dg-options "-pthread" { target *-*-freebsd* *-*-dragonfly* *-*-netbsd* *-*-linux* *-*-gnu* } }
23// { dg-options "-pthreads" { target *-*-solaris* } }
24
25#include <string>
26#include <map>
27#include <vector>
28#include <pthread.h>
29
30const int max_thread_count = 8;
31const int loops = 100000;
32
33const char* my_default = "Hallo Welt!";
34
35const std::size_t upper_limit = 2500;
36const std::size_t lower_limit = 1000;
37
38typedef char charT;
39
40typedef std::string String;
41
42typedef String MyType;
43
44void*
45thread_main (void*)
46{
47  typedef std::map<unsigned int,MyType> Map;
48  typedef Map::value_type Value_Pair;
49  Map myMap;
50
51  for (int loop = 0; loop < loops; loop++)
52    {
53      String& str = myMap[loop];
54      str.append (my_default);
55      myMap.insert (Value_Pair (loop, str));
56
57      if (myMap.size () > upper_limit)
58	{
59	  while (myMap.size () > lower_limit)
60	    {
61	      Map::iterator it = myMap.begin ();
62	      myMap.erase (it);
63	    }
64	}
65    }
66
67  return 0;
68}
69
70int
71main (void)
72{
73  pthread_t tid[max_thread_count];
74
75#if defined(__sun) && defined(__svr4__) && _XOPEN_VERSION >= 500
76  pthread_setconcurrency (max_thread_count);
77#endif
78
79  for (int i = 0; i < max_thread_count; i++)
80    pthread_create (&tid[i], 0, thread_main, 0);
81
82  for (int i = 0; i < max_thread_count; i++)
83    pthread_join (tid[i], 0);
84
85  return 0;
86}
87