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+// 2002-01-23 Loren J. Rittle <rittle@labs.mot.com> <ljrittle@acm.org>
+// Adapted from http://gcc.gnu.org/ml/gcc-bugs/2002-01/msg00679.html
+// which was adapted from pthread1.cc by Mike Lu <MLu@dynamicsoft.com>
+//
+// Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2009
+// Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// { dg-do run { target *-*-freebsd* *-*-netbsd* *-*-linux* *-*-solaris* *-*-cygwin *-*-darwin* alpha*-*-osf* mips-sgi-irix6* } }
+// { dg-options "-pthread" { target *-*-freebsd* *-*-netbsd* *-*-linux* alpha*-*-osf* mips-sgi-irix6* } }
+// { dg-options "-pthreads" { target *-*-solaris* } }
+
+#include <string>
+#include <list>
+#include <pthread.h>
+
+using namespace std;
+
+static list<string> foo;
+static pthread_mutex_t fooLock = PTHREAD_MUTEX_INITIALIZER;
+static pthread_cond_t fooCondOverflow = PTHREAD_COND_INITIALIZER;
+static pthread_cond_t fooCondUnderflow = PTHREAD_COND_INITIALIZER;
+static unsigned max_size = 10;
+#if defined(__CYGWIN__)
+static int iters = 10000;
+#else
+static int iters = 300000;
+#endif
+
+void*
+produce (void*)
+{
+ for (int num = 0; num < iters; )
+ {
+ string str ("test string");
+
+ pthread_mutex_lock (&fooLock);
+ while (foo.size () >= max_size)
+ pthread_cond_wait (&fooCondOverflow, &fooLock);
+ foo.push_back (str);
+ num++;
+ if (foo.size () >= (max_size / 2))
+ pthread_cond_signal (&fooCondUnderflow);
+ pthread_mutex_unlock (&fooLock);
+ }
+
+ // No more data will ever be written, ensure no fini race
+ pthread_mutex_lock (&fooLock);
+ pthread_cond_signal (&fooCondUnderflow);
+ pthread_mutex_unlock (&fooLock);
+
+ return 0;
+}
+
+void*
+consume (void*)
+{
+ for (int num = 0; num < iters; )
+ {
+ pthread_mutex_lock (&fooLock);
+ while (foo.size () == 0)
+ pthread_cond_wait (&fooCondUnderflow, &fooLock);
+ while (foo.size () > 0)
+ {
+ string str = foo.back ();
+ foo.pop_back ();
+ num++;
+ }
+ pthread_cond_signal (&fooCondOverflow);
+ pthread_mutex_unlock (&fooLock);
+ }
+
+ return 0;
+}
+
+int
+main (void)
+{
+#if defined(__sun) && defined(__svr4__) && _XOPEN_VERSION >= 500
+ pthread_setconcurrency (2);
+#endif
+
+ pthread_t prod;
+ pthread_create (&prod, NULL, produce, NULL);
+ pthread_t cons;
+ pthread_create (&cons, NULL, consume, NULL);
+
+ pthread_join (prod, NULL);
+ pthread_join (cons, NULL);
+
+ return 0;
+}