--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/imgtools/imglib/boostlibrary/boost/thread/pthread/mutex.hpp	Tue Oct 27 16:36:35 2009 +0000
@@ -0,0 +1,210 @@
+#ifndef BOOST_THREAD_PTHREAD_MUTEX_HPP
+#define BOOST_THREAD_PTHREAD_MUTEX_HPP
+// (C) Copyright 2007-8 Anthony Williams
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#include <pthread.h>
+#include <boost/utility.hpp>
+#include <boost/thread/exceptions.hpp>
+#include <boost/thread/locks.hpp>
+#include <boost/thread/thread_time.hpp>
+#include <boost/thread/xtime.hpp>
+#include <boost/assert.hpp>
+#include <errno.h>
+#include "timespec.hpp"
+#include "pthread_mutex_scoped_lock.hpp"
+
+#ifdef _POSIX_TIMEOUTS
+#if _POSIX_TIMEOUTS >= 0
+#define BOOST_PTHREAD_HAS_TIMEDLOCK
+#endif
+#endif
+
+#include <boost/config/abi_prefix.hpp>
+
+namespace boost
+{
+    class mutex:
+        boost::noncopyable
+    {
+    private:
+        pthread_mutex_t m;
+    public:
+        mutex()
+        {
+            int const res=pthread_mutex_init(&m,NULL);
+            if(res)
+            {
+                throw thread_resource_error();
+            }
+        }
+        ~mutex()
+        {
+            BOOST_VERIFY(!pthread_mutex_destroy(&m));
+        }
+        
+        void lock()
+        {
+            BOOST_VERIFY(!pthread_mutex_lock(&m));
+        }
+
+        void unlock()
+        {
+            BOOST_VERIFY(!pthread_mutex_unlock(&m));
+        }
+        
+        bool try_lock()
+        {
+            int const res=pthread_mutex_trylock(&m);
+            BOOST_ASSERT(!res || res==EBUSY);
+            return !res;
+        }
+
+        typedef pthread_mutex_t* native_handle_type;
+        native_handle_type native_handle()
+        {
+            return &m;
+        }
+
+        typedef unique_lock<mutex> scoped_lock;
+        typedef detail::try_lock_wrapper<mutex> scoped_try_lock;
+    };
+
+    typedef mutex try_mutex;
+
+    class timed_mutex:
+        boost::noncopyable
+    {
+    private:
+        pthread_mutex_t m;
+#ifndef BOOST_PTHREAD_HAS_TIMEDLOCK
+        pthread_cond_t cond;
+        bool is_locked;
+#endif
+    public:
+        timed_mutex()
+        {
+            int const res=pthread_mutex_init(&m,NULL);
+            if(res)
+            {
+                throw thread_resource_error();
+            }
+#ifndef BOOST_PTHREAD_HAS_TIMEDLOCK
+            int const res2=pthread_cond_init(&cond,NULL);
+            if(res2)
+            {
+                BOOST_VERIFY(!pthread_mutex_destroy(&m));
+                throw thread_resource_error();
+            }
+            is_locked=false;
+#endif
+        }
+        ~timed_mutex()
+        {
+            BOOST_VERIFY(!pthread_mutex_destroy(&m));
+#ifndef BOOST_PTHREAD_HAS_TIMEDLOCK
+            BOOST_VERIFY(!pthread_cond_destroy(&cond));
+#endif
+        }
+
+        template<typename TimeDuration>
+        bool timed_lock(TimeDuration const & relative_time)
+        {
+            return timed_lock(get_system_time()+relative_time);
+        }
+        bool timed_lock(boost::xtime const & absolute_time)
+        {
+            return timed_lock(system_time(absolute_time));
+        }
+
+#ifdef BOOST_PTHREAD_HAS_TIMEDLOCK
+        void lock()
+        {
+            BOOST_VERIFY(!pthread_mutex_lock(&m));
+        }
+
+        void unlock()
+        {
+            BOOST_VERIFY(!pthread_mutex_unlock(&m));
+        }
+        
+        bool try_lock()
+        {
+            int const res=pthread_mutex_trylock(&m);
+            BOOST_ASSERT(!res || res==EBUSY);
+            return !res;
+        }
+        bool timed_lock(system_time const & abs_time)
+        {
+            struct timespec const timeout=detail::get_timespec(abs_time);
+            int const res=pthread_mutex_timedlock(&m,&timeout);
+            BOOST_ASSERT(!res || res==ETIMEDOUT);
+            return !res;
+        }
+
+        typedef pthread_mutex_t* native_handle_type;
+        native_handle_type native_handle()
+        {
+            return &m;
+        }
+
+#else
+        void lock()
+        {
+            boost::pthread::pthread_mutex_scoped_lock const local_lock(&m);
+            while(is_locked)
+            {
+                BOOST_VERIFY(!pthread_cond_wait(&cond,&m));
+            }
+            is_locked=true;
+        }
+
+        void unlock()
+        {
+            boost::pthread::pthread_mutex_scoped_lock const local_lock(&m);
+            is_locked=false;
+            BOOST_VERIFY(!pthread_cond_signal(&cond));
+        }
+        
+        bool try_lock()
+        {
+            boost::pthread::pthread_mutex_scoped_lock const local_lock(&m);
+            if(is_locked)
+            {
+                return false;
+            }
+            is_locked=true;
+            return true;
+        }
+
+        bool timed_lock(system_time const & abs_time)
+        {
+            struct timespec const timeout=detail::get_timespec(abs_time);
+            boost::pthread::pthread_mutex_scoped_lock const local_lock(&m);
+            while(is_locked)
+            {
+                int const cond_res=pthread_cond_timedwait(&cond,&m,&timeout);
+                if(cond_res==ETIMEDOUT)
+                {
+                    return false;
+                }
+                BOOST_ASSERT(!cond_res);
+            }
+            is_locked=true;
+            return true;
+        }
+#endif
+
+        typedef unique_lock<timed_mutex> scoped_timed_lock;
+        typedef detail::try_lock_wrapper<timed_mutex> scoped_try_lock;
+        typedef scoped_timed_lock scoped_lock;
+    };
+
+}
+
+#include <boost/config/abi_suffix.hpp>
+
+
+#endif