diff DEPENDENCIES/generic/include/boost/thread/pthread/recursive_mutex.hpp @ 16:2665513ce2d3

Add boost headers

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/DEPENDENCIES/generic/include/boost/thread/pthread/recursive_mutex.hpp	Tue Aug 05 11:11:38 2014 +0100
@@ -0,0 +1,401 @@
+#ifndef BOOST_THREAD_PTHREAD_RECURSIVE_MUTEX_HPP
+#define BOOST_THREAD_PTHREAD_RECURSIVE_MUTEX_HPP
+// (C) Copyright 2007-8 Anthony Williams
+// (C) Copyright 2011-2012 Vicente J. Botet Escriba
+// 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/throw_exception.hpp>
+#include <boost/thread/exceptions.hpp>
+#if defined BOOST_THREAD_PROVIDES_NESTED_LOCKS
+#include <boost/thread/lock_types.hpp>
+#endif
+#include <boost/thread/thread_time.hpp>
+#include <boost/assert.hpp>
+#ifndef _WIN32
+#include <unistd.h>
+#endif
+#include <boost/date_time/posix_time/conversion.hpp>
+#include <errno.h>
+#include <boost/thread/pthread/timespec.hpp>
+#include <boost/thread/pthread/pthread_mutex_scoped_lock.hpp>
+#ifdef BOOST_THREAD_USES_CHRONO
+#include <boost/chrono/system_clocks.hpp>
+#include <boost/chrono/ceil.hpp>
+#endif
+#include <boost/thread/detail/delete.hpp>
+
+#ifdef _POSIX_TIMEOUTS
+#if _POSIX_TIMEOUTS >= 0 && _POSIX_TIMEOUTS>=200112L
+#ifndef BOOST_PTHREAD_HAS_TIMEDLOCK
+#define BOOST_PTHREAD_HAS_TIMEDLOCK
+#endif
+#endif
+#endif
+
+
+#if defined(BOOST_HAS_PTHREAD_MUTEXATTR_SETTYPE) && defined(BOOST_PTHREAD_HAS_TIMEDLOCK)
+#define BOOST_USE_PTHREAD_RECURSIVE_TIMEDLOCK
+#endif
+
+#include <boost/config/abi_prefix.hpp>
+
+namespace boost
+{
+    class recursive_mutex
+    {
+    private:
+        pthread_mutex_t m;
+#ifndef BOOST_HAS_PTHREAD_MUTEXATTR_SETTYPE
+        pthread_cond_t cond;
+        bool is_locked;
+        pthread_t owner;
+        unsigned count;
+#endif
+    public:
+        BOOST_THREAD_NO_COPYABLE(recursive_mutex)
+        recursive_mutex()
+        {
+#ifdef BOOST_HAS_PTHREAD_MUTEXATTR_SETTYPE
+            pthread_mutexattr_t attr;
+
+            int const init_attr_res=pthread_mutexattr_init(&attr);
+            if(init_attr_res)
+            {
+                boost::throw_exception(thread_resource_error(init_attr_res, "boost:: recursive_mutex constructor failed in pthread_mutexattr_init"));
+            }
+            int const set_attr_res=pthread_mutexattr_settype(&attr,PTHREAD_MUTEX_RECURSIVE);
+            if(set_attr_res)
+            {
+                BOOST_VERIFY(!pthread_mutexattr_destroy(&attr));
+                boost::throw_exception(thread_resource_error(set_attr_res, "boost:: recursive_mutex constructor failed in pthread_mutexattr_settype"));
+            }
+
+            int const res=pthread_mutex_init(&m,&attr);
+            if(res)
+            {
+                BOOST_VERIFY(!pthread_mutexattr_destroy(&attr));
+                boost::throw_exception(thread_resource_error(res, "boost:: recursive_mutex constructor failed in pthread_mutex_init"));
+            }
+            BOOST_VERIFY(!pthread_mutexattr_destroy(&attr));
+#else
+            int const res=pthread_mutex_init(&m,NULL);
+            if(res)
+            {
+                boost::throw_exception(thread_resource_error(res, "boost:: recursive_mutex constructor failed in pthread_mutex_init"));
+            }
+            int const res2=pthread_cond_init(&cond,NULL);
+            if(res2)
+            {
+                BOOST_VERIFY(!pthread_mutex_destroy(&m));
+                boost::throw_exception(thread_resource_error(res2, "boost:: recursive_mutex constructor failed in pthread_cond_init"));
+            }
+            is_locked=false;
+            count=0;
+#endif
+        }
+        ~recursive_mutex()
+        {
+            BOOST_VERIFY(!pthread_mutex_destroy(&m));
+#ifndef BOOST_HAS_PTHREAD_MUTEXATTR_SETTYPE
+            BOOST_VERIFY(!pthread_cond_destroy(&cond));
+#endif
+        }
+
+#ifdef BOOST_HAS_PTHREAD_MUTEXATTR_SETTYPE
+        void lock()
+        {
+            BOOST_VERIFY(!pthread_mutex_lock(&m));
+        }
+
+        void unlock()
+        {
+            BOOST_VERIFY(!pthread_mutex_unlock(&m));
+        }
+
+        bool try_lock() BOOST_NOEXCEPT
+        {
+            int const res=pthread_mutex_trylock(&m);
+            BOOST_ASSERT(!res || res==EBUSY);
+            return !res;
+        }
+#define BOOST_THREAD_DEFINES_RECURSIVE_MUTEX_NATIVE_HANDLE
+        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);
+            if(is_locked && pthread_equal(owner,pthread_self()))
+            {
+                ++count;
+                return;
+            }
+
+            while(is_locked)
+            {
+                BOOST_VERIFY(!pthread_cond_wait(&cond,&m));
+            }
+            is_locked=true;
+            ++count;
+            owner=pthread_self();
+        }
+
+        void unlock()
+        {
+            boost::pthread::pthread_mutex_scoped_lock const local_lock(&m);
+            if(!--count)
+            {
+                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 && !pthread_equal(owner,pthread_self()))
+            {
+                return false;
+            }
+            is_locked=true;
+            ++count;
+            owner=pthread_self();
+            return true;
+        }
+
+#endif
+
+#if defined BOOST_THREAD_PROVIDES_NESTED_LOCKS
+        typedef unique_lock<recursive_mutex> scoped_lock;
+        typedef detail::try_lock_wrapper<recursive_mutex> scoped_try_lock;
+#endif
+    };
+
+    typedef recursive_mutex recursive_try_mutex;
+
+    class recursive_timed_mutex
+    {
+    private:
+        pthread_mutex_t m;
+#ifndef BOOST_USE_PTHREAD_RECURSIVE_TIMEDLOCK
+        pthread_cond_t cond;
+        bool is_locked;
+        pthread_t owner;
+        unsigned count;
+#endif
+    public:
+        BOOST_THREAD_NO_COPYABLE(recursive_timed_mutex)
+        recursive_timed_mutex()
+        {
+#ifdef BOOST_USE_PTHREAD_RECURSIVE_TIMEDLOCK
+            pthread_mutexattr_t attr;
+
+            int const init_attr_res=pthread_mutexattr_init(&attr);
+            if(init_attr_res)
+            {
+                boost::throw_exception(thread_resource_error(init_attr_res, "boost:: recursive_timed_mutex constructor failed in pthread_mutexattr_init"));
+            }
+            int const set_attr_res=pthread_mutexattr_settype(&attr,PTHREAD_MUTEX_RECURSIVE);
+            if(set_attr_res)
+            {
+                boost::throw_exception(thread_resource_error(set_attr_res, "boost:: recursive_timed_mutex constructor failed in pthread_mutexattr_settype"));
+            }
+
+            int const res=pthread_mutex_init(&m,&attr);
+            if(res)
+            {
+                BOOST_VERIFY(!pthread_mutexattr_destroy(&attr));
+                boost::throw_exception(thread_resource_error(res, "boost:: recursive_timed_mutex constructor failed in pthread_mutex_init"));
+            }
+            BOOST_VERIFY(!pthread_mutexattr_destroy(&attr));
+#else
+            int const res=pthread_mutex_init(&m,NULL);
+            if(res)
+            {
+                boost::throw_exception(thread_resource_error(res, "boost:: recursive_timed_mutex constructor failed in pthread_mutex_init"));
+            }
+            int const res2=pthread_cond_init(&cond,NULL);
+            if(res2)
+            {
+                BOOST_VERIFY(!pthread_mutex_destroy(&m));
+                boost::throw_exception(thread_resource_error(res2, "boost:: recursive_timed_mutex constructor failed in pthread_cond_init"));
+            }
+            is_locked=false;
+            count=0;
+#endif
+        }
+        ~recursive_timed_mutex()
+        {
+            BOOST_VERIFY(!pthread_mutex_destroy(&m));
+#ifndef BOOST_USE_PTHREAD_RECURSIVE_TIMEDLOCK
+            BOOST_VERIFY(!pthread_cond_destroy(&cond));
+#endif
+        }
+
+#if defined BOOST_THREAD_USES_DATETIME
+        template<typename TimeDuration>
+        bool timed_lock(TimeDuration const & relative_time)
+        {
+            return timed_lock(get_system_time()+relative_time);
+        }
+#endif
+
+#ifdef BOOST_USE_PTHREAD_RECURSIVE_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;
+        }
+    private:
+        bool do_try_lock_until(struct timespec const &timeout)
+        {
+            int const res=pthread_mutex_timedlock(&m,&timeout);
+            BOOST_ASSERT(!res || res==ETIMEDOUT);
+            return !res;
+        }
+
+    public:
+
+#else
+        void lock()
+        {
+            boost::pthread::pthread_mutex_scoped_lock const local_lock(&m);
+            if(is_locked && pthread_equal(owner,pthread_self()))
+            {
+                ++count;
+                return;
+            }
+
+            while(is_locked)
+            {
+                BOOST_VERIFY(!pthread_cond_wait(&cond,&m));
+            }
+            is_locked=true;
+            ++count;
+            owner=pthread_self();
+        }
+
+        void unlock()
+        {
+            boost::pthread::pthread_mutex_scoped_lock const local_lock(&m);
+            if(!--count)
+            {
+                is_locked=false;
+            }
+            BOOST_VERIFY(!pthread_cond_signal(&cond));
+        }
+
+        bool try_lock() BOOST_NOEXCEPT
+        {
+            boost::pthread::pthread_mutex_scoped_lock const local_lock(&m);
+            if(is_locked && !pthread_equal(owner,pthread_self()))
+            {
+                return false;
+            }
+            is_locked=true;
+            ++count;
+            owner=pthread_self();
+            return true;
+        }
+
+    private:
+        bool do_try_lock_until(struct timespec const &timeout)
+        {
+            boost::pthread::pthread_mutex_scoped_lock const local_lock(&m);
+            if(is_locked && pthread_equal(owner,pthread_self()))
+            {
+                ++count;
+                return true;
+            }
+            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;
+            ++count;
+            owner=pthread_self();
+            return true;
+        }
+    public:
+
+#endif
+
+#if defined BOOST_THREAD_USES_DATETIME
+        bool timed_lock(system_time const & abs_time)
+        {
+            struct timespec const ts=detail::to_timespec(abs_time);
+            return do_try_lock_until(ts);
+        }
+#endif
+#ifdef BOOST_THREAD_USES_CHRONO
+        template <class Rep, class Period>
+        bool try_lock_for(const chrono::duration<Rep, Period>& rel_time)
+        {
+          return try_lock_until(chrono::steady_clock::now() + rel_time);
+        }
+        template <class Clock, class Duration>
+        bool try_lock_until(const chrono::time_point<Clock, Duration>& t)
+        {
+          using namespace chrono;
+          system_clock::time_point     s_now = system_clock::now();
+          typename Clock::time_point  c_now = Clock::now();
+          return try_lock_until(s_now + ceil<nanoseconds>(t - c_now));
+        }
+        template <class Duration>
+        bool try_lock_until(const chrono::time_point<chrono::system_clock, Duration>& t)
+        {
+          using namespace chrono;
+          typedef time_point<system_clock, nanoseconds> nano_sys_tmpt;
+          return try_lock_until(nano_sys_tmpt(ceil<nanoseconds>(t.time_since_epoch())));
+        }
+        bool try_lock_until(const chrono::time_point<chrono::system_clock, chrono::nanoseconds>& tp)
+        {
+          //using namespace chrono;
+          chrono::nanoseconds d = tp.time_since_epoch();
+          timespec ts = boost::detail::to_timespec(d);
+          return do_try_lock_until(ts);
+        }
+#endif
+
+#define BOOST_THREAD_DEFINES_RECURSIVE_TIMED_MUTEX_NATIVE_HANDLE
+        typedef pthread_mutex_t* native_handle_type;
+        native_handle_type native_handle()
+        {
+            return &m;
+        }
+
+#if defined BOOST_THREAD_PROVIDES_NESTED_LOCKS
+        typedef unique_lock<recursive_timed_mutex> scoped_timed_lock;
+        typedef detail::try_lock_wrapper<recursive_timed_mutex> scoped_try_lock;
+        typedef scoped_timed_lock scoped_lock;
+#endif
+    };
+
+}
+
+#include <boost/config/abi_suffix.hpp>
+
+#endif