1 // 2002-01-23 Loren J. Rittle <rittle@labs.mot.com> <ljrittle@acm.org>
2 // Adapted from http://gcc.gnu.org/ml/gcc-bugs/2002-01/msg00679.html
3 // which was adapted from pthread1.cc by Mike Lu <MLu@dynamicsoft.com>
5 // Copyright (C) 2002, 2003 Free Software Foundation, Inc.
7 // This file is part of the GNU ISO C++ Library. This library is free
8 // software; you can redistribute it and/or modify it under the
9 // terms of the GNU General Public License as published by the
10 // Free Software Foundation; either version 2, or (at your option)
13 // This library is distributed in the hope that it will be useful,
14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 // GNU General Public License for more details.
18 // You should have received a copy of the GNU General Public License along
19 // with this library; see the file COPYING. If not, write to the Free
20 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
23 // { dg-do run { target *-*-freebsd* *-*-netbsd* *-*-linux* *-*-solaris* *-*-cygwin *-*-darwin* alpha*-*-osf* } }
24 // { dg-options "-pthread" { target *-*-freebsd* *-*-netbsd* *-*-linux* alpha*-*-osf* } }
25 // { dg-options "-pthreads" { target *-*-solaris* } }
30 // Do not include <pthread.h> explicitly; if threads are properly
31 // configured for the port, then it is picked up free from STL headers.
36 static list<string> foo;
37 static pthread_mutex_t fooLock = PTHREAD_MUTEX_INITIALIZER;
38 static pthread_cond_t fooCondOverflow = PTHREAD_COND_INITIALIZER;
39 static pthread_cond_t fooCondUnderflow = PTHREAD_COND_INITIALIZER;
40 static unsigned max_size = 10;
41 #if defined(__CYGWIN__)
42 static int iters = 10000;
44 static int iters = 300000;
50 for (int num = 0; num < iters; )
52 string str ("test string");
54 pthread_mutex_lock (&fooLock);
55 while (foo.size () >= max_size)
56 pthread_cond_wait (&fooCondOverflow, &fooLock);
59 if (foo.size () >= (max_size / 2))
60 pthread_cond_signal (&fooCondUnderflow);
61 pthread_mutex_unlock (&fooLock);
64 // No more data will ever be written, ensure no fini race
65 pthread_mutex_lock (&fooLock);
66 pthread_cond_signal (&fooCondUnderflow);
67 pthread_mutex_unlock (&fooLock);
75 for (int num = 0; num < iters; )
77 pthread_mutex_lock (&fooLock);
78 while (foo.size () == 0)
79 pthread_cond_wait (&fooCondUnderflow, &fooLock);
80 while (foo.size () > 0)
82 string str = foo.back ();
86 pthread_cond_signal (&fooCondOverflow);
87 pthread_mutex_unlock (&fooLock);
96 #if defined(__sun) && defined(__svr4__)
97 pthread_setconcurrency (2);
101 pthread_create (&prod, NULL, produce, NULL);
103 pthread_create (&cons, NULL, consume, NULL);
105 pthread_join (prod, NULL);
106 pthread_join (cons, NULL);