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) 2002-2016 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 3, 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 COPYING3. If not see
20 // <http://www.gnu.org/licenses/>.
22 // { dg-do run { target *-*-freebsd* *-*-dragonfly* *-*-netbsd* *-*-linux* *-*-gnu* *-*-solaris* *-*-cygwin *-*-rtems* *-*-darwin* } }
23 // { dg-options "-pthread" { target *-*-freebsd* *-*-dragonfly* *-*-netbsd* *-*-linux* *-*-gnu* } }
24 // { dg-options "-pthreads" { target *-*-solaris* } }
32 static list
<string
> foo
;
33 static pthread_mutex_t fooLock
= PTHREAD_MUTEX_INITIALIZER
;
34 static pthread_cond_t fooCondOverflow
= PTHREAD_COND_INITIALIZER
;
35 static pthread_cond_t fooCondUnderflow
= PTHREAD_COND_INITIALIZER
;
36 static unsigned max_size
= 10;
37 #if defined(__CYGWIN__)
38 static int iters
= 10000;
40 static int iters
= 300000;
46 for (int num
= 0; num
< iters
; )
48 string
str ("test string");
50 pthread_mutex_lock (&fooLock
);
51 while (foo
.size () >= max_size
)
52 pthread_cond_wait (&fooCondOverflow
, &fooLock
);
55 if (foo
.size () >= (max_size
/ 2))
56 pthread_cond_signal (&fooCondUnderflow
);
57 pthread_mutex_unlock (&fooLock
);
60 // No more data will ever be written, ensure no fini race
61 pthread_mutex_lock (&fooLock
);
62 pthread_cond_signal (&fooCondUnderflow
);
63 pthread_mutex_unlock (&fooLock
);
71 for (int num
= 0; num
< iters
; )
73 pthread_mutex_lock (&fooLock
);
74 while (foo
.size () == 0)
75 pthread_cond_wait (&fooCondUnderflow
, &fooLock
);
76 while (foo
.size () > 0)
78 string str
= foo
.back ();
82 pthread_cond_signal (&fooCondOverflow
);
83 pthread_mutex_unlock (&fooLock
);
92 #if defined(__sun) && defined(__svr4__) && _XOPEN_VERSION >= 500
93 pthread_setconcurrency (2);
97 pthread_create (&prod
, 0, produce
, 0);
99 pthread_create (&cons
, 0, consume
, 0);
101 pthread_join (prod
, 0);
102 pthread_join (cons
, 0);