Imported gcc-4.4.3

[msp430-gcc.git] / libstdc++-v3 / testsuite / 21_strings / basic_string / pthread4.cc

diff --git a/libstdc++-v3/testsuite/21_strings/basic_string/pthread4.cc b/libstdc++-v3/testsuite/21_strings/basic_string/pthread4.cc
new file mode 100644 (file)
index 0000000..fb48898
--- /dev/null
+++ b/libstdc++-v3/testsuite/21_strings/basic_string/pthread4.cc
@@ -0,0 +1,106 @@
+// 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;
+}