ceph/src/boost/libs/thread/test/sync/mutual_exclusion/locks/unique_lock/mod/release_pass.cpp

   1 //===----------------------------------------------------------------------===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is dual licensed under the MIT and the University of Illinois Open
   6 // Source Licenses. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9
  10 // Copyright (C) 2011 Vicente J. Botet Escriba
  11 //
  12 //  Distributed under the Boost Software License, Version 1.0. (See accompanying
  13 //  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
  14
  15 // <boost/thread/locks.hpp>
  16
  17 // template <class Mutex> class unique_lock;
  18
  19 // void Mutex* release();
  20
  21 #include <boost/thread/lock_types.hpp>
  22 #include <boost/detail/lightweight_test.hpp>
  23
  24 struct mutex
  25 {
  26   static int lock_count;
  27   static int unlock_count;
  28   void lock()
  29   {
  30     ++lock_count;
  31   }
  32   void unlock()
  33   {
  34     ++unlock_count;
  35   }
  36 };
  37
  38 int mutex::lock_count = 0;
  39 int mutex::unlock_count = 0;
  40
  41 mutex m;
  42
  43 int main()
  44 {
  45   boost::unique_lock<mutex> lk(m);
  46   BOOST_TEST(lk.mutex() == &m);
  47   BOOST_TEST(lk.owns_lock() == true);
  48   BOOST_TEST(mutex::lock_count == 1);
  49   BOOST_TEST(mutex::unlock_count == 0);
  50   BOOST_TEST(lk.release() == &m);
  51   BOOST_TEST(lk.mutex() == 0);
  52   BOOST_TEST(lk.owns_lock() == false);
  53   BOOST_TEST(mutex::lock_count == 1);
  54   BOOST_TEST(mutex::unlock_count == 0);
  55
  56   return boost::report_errors();
  57 }
  58