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author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
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committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /libstdc++-v3/testsuite/21_strings/basic_string/pthread4.cc | |
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Diffstat (limited to 'libstdc++-v3/testsuite/21_strings/basic_string/pthread4.cc')
-rw-r--r-- | libstdc++-v3/testsuite/21_strings/basic_string/pthread4.cc | 106 |
1 files changed, 106 insertions, 0 deletions
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 index 000000000..b3dc9b20e --- /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, 2010 +// 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, 0, produce, 0); + pthread_t cons; + pthread_create (&cons, 0, consume, 0); + + pthread_join (prod, 0); + pthread_join (cons, 0); + + return 0; +} |