Replace broken submodules with vendored source codeHEAD patched

author: Dawid Potocki <dawid@dawidpotocki.com> 2024-03-05 15:40:56 +1300
committer: Dawid Potocki <dawid@dawidpotocki.com> 2024-03-05 20:35:36 +1300
commit: 240e5f000978938357c3ef14154c8009bbc773f0 (patch)
tree: 7a727fa90e352f971a964779a859f27f6a66d00d /externals/boost/libs/thread
parent: 0ff3440232d6bc9226e37c41c05c5aead03f37fd (diff)
9 files changed, 2657 insertions, 0 deletions
diff --git a/externals/boost/libs/thread/src/future.cpp b/externals/boost/libs/thread/src/future.cpp
new file mode 100644
index 000000000..a477e709a
--- /dev/null
+++ b/externals/boost/libs/thread/src/future.cpp
@@ -0,0 +1,64 @@
+// (C) Copyright 2012 Vicente J. Botet Escriba
+// Use, modification and distribution are subject to 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 <boost/thread/detail/config.hpp>
+
+#ifndef BOOST_NO_EXCEPTIONS
+
+#include <boost/thread/futures/future_error_code.hpp>
+#include <string>
+
+namespace boost
+{
+
+  namespace thread_detail
+  {
+
+    class  future_error_category :
+      public boost::system::error_category
+    {
+    public:
+        virtual const char* name() const BOOST_NOEXCEPT;
+        virtual std::string message(int ev) const;
+    };
+
+    const char*
+    future_error_category::name() const BOOST_NOEXCEPT
+    {
+        return "future";
+    }
+
+    std::string
+    future_error_category::message(int ev) const
+    {
+        switch (BOOST_SCOPED_ENUM_NATIVE(future_errc)(ev))
+        {
+        case future_errc::broken_promise:
+            return std::string("The associated promise has been destructed prior "
+                          "to the associated state becoming ready.");
+        case future_errc::future_already_retrieved:
+            return std::string("The future has already been retrieved from "
+                          "the promise or packaged_task.");
+        case future_errc::promise_already_satisfied:
+            return std::string("The state of the promise has already been set.");
+        case future_errc::no_state:
+            return std::string("Operation not permitted on an object without "
+                          "an associated state.");
+        }
+        return std::string("unspecified future_errc value\n");
+    }
+    future_error_category future_error_category_var;
+  }
+
+  BOOST_THREAD_DECL
+  const system::error_category&
+  future_category() BOOST_NOEXCEPT
+  {
+      return thread_detail::future_error_category_var;
+  }
+
+}
+#endif
+
diff --git a/externals/boost/libs/thread/src/pthread/once.cpp b/externals/boost/libs/thread/src/pthread/once.cpp
new file mode 100644
index 000000000..3de1fe4b0
--- /dev/null
+++ b/externals/boost/libs/thread/src/pthread/once.cpp
@@ -0,0 +1,82 @@
+// Copyright (C) 2007 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 <boost/thread/detail/config.hpp>
+#ifdef BOOST_THREAD_ONCE_ATOMIC
+#include "./once_atomic.cpp"
+#else
+#define __STDC_CONSTANT_MACROS
+#include <boost/thread/once.hpp>
+#include <boost/assert.hpp>
+#include <boost/throw_exception.hpp>
+#include <pthread.h>
+#include <stdlib.h>
+#include <memory>
+#include <string.h> // memcmp.
+namespace boost
+{
+    namespace thread_detail
+    {
+        BOOST_THREAD_DECL uintmax_atomic_t once_global_epoch=BOOST_THREAD_DETAIL_UINTMAX_ATOMIC_MAX_C;
+        BOOST_THREAD_DECL pthread_mutex_t once_epoch_mutex=PTHREAD_MUTEX_INITIALIZER;
+        BOOST_THREAD_DECL pthread_cond_t once_epoch_cv = PTHREAD_COND_INITIALIZER;
+
+        namespace
+        {
+            pthread_key_t epoch_tss_key;
+            pthread_once_t epoch_tss_key_flag=PTHREAD_ONCE_INIT;
+
+            extern "C"
+            {
+                static void delete_epoch_tss_data(void* data)
+                {
+                    free(data);
+                }
+
+                static void create_epoch_tss_key()
+                {
+                    BOOST_VERIFY(!pthread_key_create(&epoch_tss_key,delete_epoch_tss_data));
+                }
+            }
+
+#if defined BOOST_THREAD_PATCH
+            const pthread_once_t pthread_once_init_value=PTHREAD_ONCE_INIT;
+            struct BOOST_THREAD_DECL delete_epoch_tss_key_on_dlclose_t
+            {
+                delete_epoch_tss_key_on_dlclose_t()
+                {
+                }
+                ~delete_epoch_tss_key_on_dlclose_t()
+                {
+                    if(memcmp(&epoch_tss_key_flag, &pthread_once_init_value, sizeof(pthread_once_t)))
+                    {
+                        void* data = pthread_getspecific(epoch_tss_key);
+                        if (data)
+                            delete_epoch_tss_data(data);
+                        pthread_key_delete(epoch_tss_key);
+                    }
+                }
+            };
+            delete_epoch_tss_key_on_dlclose_t delete_epoch_tss_key_on_dlclose;
+#endif
+        }
+
+        uintmax_atomic_t& get_once_per_thread_epoch()
+        {
+            BOOST_VERIFY(!pthread_once(&epoch_tss_key_flag,create_epoch_tss_key));
+            void* data=pthread_getspecific(epoch_tss_key);
+            if(!data)
+            {
+                data=malloc(sizeof(thread_detail::uintmax_atomic_t));
+                if(!data) BOOST_THROW_EXCEPTION(std::bad_alloc());
+                BOOST_VERIFY(!pthread_setspecific(epoch_tss_key,data));
+                *static_cast<thread_detail::uintmax_atomic_t*>(data)=BOOST_THREAD_DETAIL_UINTMAX_ATOMIC_MAX_C;
+            }
+            return *static_cast<thread_detail::uintmax_atomic_t*>(data);
+        }
+    }
+
+}
+#endif //
diff --git a/externals/boost/libs/thread/src/pthread/once_atomic.cpp b/externals/boost/libs/thread/src/pthread/once_atomic.cpp
new file mode 100644
index 000000000..69f5be809
--- /dev/null
+++ b/externals/boost/libs/thread/src/pthread/once_atomic.cpp
@@ -0,0 +1,91 @@
+//  (C) Copyright 2013 Andrey Semashev
+//  (C) Copyright 2013 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)
+
+//#define __STDC_CONSTANT_MACROS
+#include <boost/thread/detail/config.hpp>
+#include <boost/thread/once.hpp>
+#include <boost/thread/pthread/pthread_helpers.hpp>
+#include <boost/thread/pthread/pthread_mutex_scoped_lock.hpp>
+#include <boost/assert.hpp>
+#include <boost/static_assert.hpp>
+#include <boost/atomic.hpp>
+#include <boost/memory_order.hpp>
+#include <pthread.h>
+
+namespace boost
+{
+  namespace thread_detail
+  {
+
+    enum flag_states
+    {
+      uninitialized, in_progress, initialized
+    };
+
+
+#ifndef BOOST_THREAD_PROVIDES_ONCE_CXX11
+    BOOST_STATIC_ASSERT_MSG(sizeof(atomic_int_type) == sizeof(atomic_type), "Boost.Thread: unsupported platform");
+#endif
+
+    static pthread_mutex_t once_mutex = PTHREAD_MUTEX_INITIALIZER;
+    static pthread_cond_t once_cv = PTHREAD_COND_INITIALIZER;
+
+    BOOST_THREAD_DECL bool enter_once_region(once_flag& flag) BOOST_NOEXCEPT
+    {
+      atomic_type& f = get_atomic_storage(flag);
+      if (f.load(memory_order_acquire) != initialized)
+      {
+        pthread::pthread_mutex_scoped_lock lk(&once_mutex);
+        if (f.load(memory_order_acquire) != initialized)
+        {
+          for (;;)
+          {
+            atomic_int_type expected = uninitialized;
+            if (f.compare_exchange_strong(expected, in_progress, memory_order_acq_rel, memory_order_acquire))
+            {
+              // We have set the flag to in_progress
+              return true;
+            }
+            else if (expected == initialized)
+            {
+              // Another thread managed to complete the initialization
+              return false;
+            }
+            else
+            {
+              // Wait until the initialization is complete
+              //pthread::pthread_mutex_scoped_lock lk(&once_mutex);
+              BOOST_VERIFY(!posix::pthread_cond_wait(&once_cv, &once_mutex));
+            }
+          }
+        }
+      }
+      return false;
+    }
+
+    BOOST_THREAD_DECL void commit_once_region(once_flag& flag) BOOST_NOEXCEPT
+    {
+      atomic_type& f = get_atomic_storage(flag);
+      {
+        pthread::pthread_mutex_scoped_lock lk(&once_mutex);
+        f.store(initialized, memory_order_release);
+      }
+      BOOST_VERIFY(!posix::pthread_cond_broadcast(&once_cv));
+    }
+
+    BOOST_THREAD_DECL void rollback_once_region(once_flag& flag) BOOST_NOEXCEPT
+    {
+      atomic_type& f = get_atomic_storage(flag);
+      {
+        pthread::pthread_mutex_scoped_lock lk(&once_mutex);
+        f.store(uninitialized, memory_order_release);
+      }
+      BOOST_VERIFY(!posix::pthread_cond_broadcast(&once_cv));
+    }
+
+  } // namespace thread_detail
+
+} // namespace boost
diff --git a/externals/boost/libs/thread/src/pthread/thread.cpp b/externals/boost/libs/thread/src/pthread/thread.cpp
new file mode 100644
index 000000000..c17aca2cc
--- /dev/null
+++ b/externals/boost/libs/thread/src/pthread/thread.cpp
@@ -0,0 +1,801 @@
+// Copyright (C) 2001-2003
+// William E. Kempf
+// Copyright (C) 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 <boost/thread/detail/config.hpp>
+
+#include <boost/thread/thread_only.hpp>
+#if defined BOOST_THREAD_USES_DATETIME
+#include <boost/thread/xtime.hpp>
+#endif
+#include <boost/thread/condition_variable.hpp>
+#include <boost/thread/locks.hpp>
+#include <boost/thread/once.hpp>
+#include <boost/thread/tss.hpp>
+#include <boost/thread/future.hpp>
+#include <boost/thread/pthread/pthread_helpers.hpp>
+#include <boost/thread/pthread/pthread_mutex_scoped_lock.hpp>
+
+#ifdef __GLIBC__
+#include <sys/sysinfo.h>
+#elif defined(__APPLE__) || defined(__FreeBSD__)
+#include <sys/types.h>
+#include <sys/sysctl.h>
+#elif defined BOOST_HAS_UNISTD_H
+#include <unistd.h>
+#endif
+
+#if defined(__VXWORKS__)
+#include <vxCpuLib.h>
+#endif
+
+#include <boost/algorithm/string/split.hpp>
+#include <boost/algorithm/string/trim.hpp>
+#include <boost/lexical_cast.hpp>
+
+#include <fstream>
+#include <string>
+#include <set>
+#include <vector>
+#include <string.h> // memcmp.
+
+namespace boost
+{
+    namespace detail
+    {
+        thread_data_base::~thread_data_base()
+        {
+            for (notify_list_t::iterator i = notify.begin(), e = notify.end();
+                    i != e; ++i)
+            {
+                i->second->unlock();
+                i->first->notify_all();
+            }
+//#ifndef BOOST_NO_EXCEPTIONS
+            for (async_states_t::iterator i = async_states_.begin(), e = async_states_.end();
+                    i != e; ++i)
+            {
+                (*i)->notify_deferred();
+            }
+//#endif
+        }
+
+        struct thread_exit_callback_node
+        {
+            boost::detail::thread_exit_function_base* func;
+            thread_exit_callback_node* next;
+
+            thread_exit_callback_node(boost::detail::thread_exit_function_base* func_,
+                                      thread_exit_callback_node* next_):
+                func(func_),next(next_)
+            {}
+        };
+
+        namespace
+        {
+#ifdef BOOST_THREAD_PROVIDES_ONCE_CXX11
+          boost::once_flag current_thread_tls_init_flag;
+#else
+            boost::once_flag current_thread_tls_init_flag=BOOST_ONCE_INIT;
+#endif
+            pthread_key_t current_thread_tls_key;
+
+            extern "C"
+            {
+                static void tls_destructor(void* data)
+                {
+                    //boost::detail::thread_data_base* thread_info=static_cast<boost::detail::thread_data_base*>(data);
+                    boost::detail::thread_data_ptr thread_info = static_cast<boost::detail::thread_data_base*>(data)->shared_from_this();
+
+                    if(thread_info)
+                    {
+                        while(!thread_info->tss_data.empty() || thread_info->thread_exit_callbacks)
+                        {
+
+                            while(thread_info->thread_exit_callbacks)
+                            {
+                                detail::thread_exit_callback_node* const current_node=thread_info->thread_exit_callbacks;
+                                thread_info->thread_exit_callbacks=current_node->next;
+                                if(current_node->func)
+                                {
+                                    (*current_node->func)();
+                                    delete current_node->func;
+                                }
+                                delete current_node;
+                            }
+                            while (!thread_info->tss_data.empty())
+                            {
+                                std::map<void const*,detail::tss_data_node>::iterator current
+                                    = thread_info->tss_data.begin();
+                                if(current->second.func && (current->second.value!=0))
+                                {
+                                    (*current->second.caller)(current->second.func,current->second.value);
+                                }
+                                thread_info->tss_data.erase(current);
+                            }
+                        }
+                        thread_info->self.reset();
+                    }
+                }
+            }
+
+#if defined BOOST_THREAD_PATCH
+            struct  delete_current_thread_tls_key_on_dlclose_t
+            {
+                delete_current_thread_tls_key_on_dlclose_t()
+                {
+                }
+                ~delete_current_thread_tls_key_on_dlclose_t()
+                {
+                    const boost::once_flag uninitialized = BOOST_ONCE_INIT;
+                    if (memcmp(&current_thread_tls_init_flag, &uninitialized, sizeof(boost::once_flag)))
+                    {
+                        void* data = pthread_getspecific(current_thread_tls_key);
+                        if (data)
+                            tls_destructor(data);
+                        pthread_key_delete(current_thread_tls_key);
+                    }
+                }
+            };
+            delete_current_thread_tls_key_on_dlclose_t delete_current_thread_tls_key_on_dlclose;
+#endif
+            void create_current_thread_tls_key()
+            {
+                BOOST_VERIFY(!pthread_key_create(&current_thread_tls_key,&tls_destructor));
+            }
+        }
+
+        boost::detail::thread_data_base* get_current_thread_data()
+        {
+            boost::call_once(current_thread_tls_init_flag,&create_current_thread_tls_key);
+            return (boost::detail::thread_data_base*)pthread_getspecific(current_thread_tls_key);
+        }
+
+        void set_current_thread_data(detail::thread_data_base* new_data)
+        {
+            boost::call_once(current_thread_tls_init_flag,create_current_thread_tls_key);
+            BOOST_VERIFY(!pthread_setspecific(current_thread_tls_key,new_data));
+        }
+    }
+
+    namespace
+    {
+        extern "C"
+        {
+            static void* thread_proxy(void* param)
+            {
+                //boost::detail::thread_data_ptr thread_info = static_cast<boost::detail::thread_data_base*>(param)->self;
+                boost::detail::thread_data_ptr thread_info = static_cast<boost::detail::thread_data_base*>(param)->shared_from_this();
+                thread_info->self.reset();
+                detail::set_current_thread_data(thread_info.get());
+#if defined BOOST_THREAD_PROVIDES_INTERRUPTIONS
+                BOOST_TRY
+                {
+#endif
+                    thread_info->run();
+#if defined BOOST_THREAD_PROVIDES_INTERRUPTIONS
+
+                }
+                BOOST_CATCH (thread_interrupted const&)
+                {
+                }
+// Removed as it stops the debugger identifying the cause of the exception
+// Unhandled exceptions still cause the application to terminate
+//                 BOOST_CATCH(...)
+//                 {
+//                   throw;
+//
+//                     std::terminate();
+//                 }
+                BOOST_CATCH_END
+#endif
+                detail::tls_destructor(thread_info.get());
+                detail::set_current_thread_data(0);
+                boost::lock_guard<boost::mutex> lock(thread_info->data_mutex);
+                thread_info->done=true;
+                thread_info->done_condition.notify_all();
+
+                return 0;
+            }
+        }
+    }
+    namespace detail
+    {
+        struct externally_launched_thread:
+            detail::thread_data_base
+        {
+            externally_launched_thread()
+            {
+#if defined BOOST_THREAD_PROVIDES_INTERRUPTIONS
+                interrupt_enabled=false;
+#endif
+            }
+            ~externally_launched_thread() {
+              BOOST_ASSERT(notify.empty());
+              notify.clear();
+//#ifndef BOOST_NO_EXCEPTIONS
+              BOOST_ASSERT(async_states_.empty());
+              async_states_.clear();
+//#endif
+            }
+            void run()
+            {}
+            void notify_all_at_thread_exit(condition_variable*, mutex*)
+            {}
+
+        private:
+            externally_launched_thread(externally_launched_thread&);
+            void operator=(externally_launched_thread&);
+        };
+
+        thread_data_base* make_external_thread_data()
+        {
+            thread_data_base* const me(detail::heap_new<externally_launched_thread>());
+            me->self.reset(me);
+            set_current_thread_data(me);
+            return me;
+        }
+
+
+        thread_data_base* get_or_make_current_thread_data()
+        {
+            thread_data_base* current_thread_data(get_current_thread_data());
+            if(!current_thread_data)
+            {
+                current_thread_data=make_external_thread_data();
+            }
+            return current_thread_data;
+        }
+
+    }
+
+
+    thread::thread() BOOST_NOEXCEPT
+    {}
+
+    bool thread::start_thread_noexcept()
+    {
+        thread_info->self=thread_info;
+        int const res = pthread_create(&thread_info->thread_handle, 0, &thread_proxy, thread_info.get());
+        if (res != 0)
+        {
+            thread_info->self.reset();
+            return false;
+        }
+        return true;
+    }
+
+    bool thread::start_thread_noexcept(const attributes& attr)
+    {
+        thread_info->self=thread_info;
+        const attributes::native_handle_type* h = attr.native_handle();
+        int res = pthread_create(&thread_info->thread_handle, h, &thread_proxy, thread_info.get());
+        if (res != 0)
+        {
+            thread_info->self.reset();
+            return false;
+        }
+        int detached_state;
+        res = pthread_attr_getdetachstate(h, &detached_state);
+        if (res != 0)
+        {
+            thread_info->self.reset();
+            return false;
+        }
+        if (PTHREAD_CREATE_DETACHED==detached_state)
+        {
+          detail::thread_data_ptr local_thread_info;
+          thread_info.swap(local_thread_info);
+
+          if(local_thread_info)
+          {
+              //lock_guard<mutex> lock(local_thread_info->data_mutex);
+              if(!local_thread_info->join_started)
+              {
+                  //BOOST_VERIFY(!pthread_detach(local_thread_info->thread_handle));
+                  local_thread_info->join_started=true;
+                  local_thread_info->joined=true;
+              }
+          }
+        }
+        return true;
+    }
+
+
+
+    detail::thread_data_ptr thread::get_thread_info BOOST_PREVENT_MACRO_SUBSTITUTION () const
+    {
+        return thread_info;
+    }
+
+    bool thread::join_noexcept()
+    {
+        detail::thread_data_ptr const local_thread_info=(get_thread_info)();
+        if(local_thread_info)
+        {
+            bool do_join=false;
+
+            {
+                unique_lock<mutex> lock(local_thread_info->data_mutex);
+                while(!local_thread_info->done)
+                {
+                    local_thread_info->done_condition.wait(lock);
+                }
+                do_join=!local_thread_info->join_started;
+
+                if(do_join)
+                {
+                    local_thread_info->join_started=true;
+                }
+                else
+                {
+                    while(!local_thread_info->joined)
+                    {
+                        local_thread_info->done_condition.wait(lock);
+                    }
+                }
+            }
+            if(do_join)
+            {
+                void* result=0;
+                BOOST_VERIFY(!pthread_join(local_thread_info->thread_handle,&result));
+                lock_guard<mutex> lock(local_thread_info->data_mutex);
+                local_thread_info->joined=true;
+                local_thread_info->done_condition.notify_all();
+            }
+
+            if(thread_info==local_thread_info)
+            {
+                thread_info.reset();
+            }
+            return true;
+        }
+        else
+        {
+          return false;
+        }
+    }
+
+    bool thread::do_try_join_until_noexcept(detail::internal_platform_timepoint const &timeout, bool& res)
+    {
+        detail::thread_data_ptr const local_thread_info=(get_thread_info)();
+        if(local_thread_info)
+        {
+            bool do_join=false;
+
+            {
+                unique_lock<mutex> lock(local_thread_info->data_mutex);
+                while(!local_thread_info->done)
+                {
+                    if(!local_thread_info->done_condition.do_wait_until(lock,timeout)) break; // timeout occurred
+                }
+                if(!local_thread_info->done)
+                {
+                  res=false;
+                  return true;
+                }
+                do_join=!local_thread_info->join_started;
+
+                if(do_join)
+                {
+                    local_thread_info->join_started=true;
+                }
+                else
+                {
+                    while(!local_thread_info->joined)
+                    {
+                        local_thread_info->done_condition.wait(lock);
+                    }
+                }
+            }
+            if(do_join)
+            {
+                void* result=0;
+                BOOST_VERIFY(!pthread_join(local_thread_info->thread_handle,&result));
+                lock_guard<mutex> lock(local_thread_info->data_mutex);
+                local_thread_info->joined=true;
+                local_thread_info->done_condition.notify_all();
+            }
+
+            if(thread_info==local_thread_info)
+            {
+                thread_info.reset();
+            }
+            res=true;
+            return true;
+        }
+        else
+        {
+          return false;
+        }
+    }
+
+    bool thread::joinable() const BOOST_NOEXCEPT
+    {
+        return (get_thread_info)()?true:false;
+    }
+
+
+    void thread::detach()
+    {
+        detail::thread_data_ptr local_thread_info;
+        thread_info.swap(local_thread_info);
+
+        if(local_thread_info)
+        {
+            lock_guard<mutex> lock(local_thread_info->data_mutex);
+            if(!local_thread_info->join_started)
+            {
+                BOOST_VERIFY(!pthread_detach(local_thread_info->thread_handle));
+                local_thread_info->join_started=true;
+                local_thread_info->joined=true;
+            }
+        }
+    }
+
+    namespace this_thread
+    {
+      namespace no_interruption_point
+      {
+        namespace hidden
+        {
+          void BOOST_THREAD_DECL sleep_for_internal(const detail::platform_duration& ts)
+          {
+                if (ts > detail::platform_duration::zero())
+                {
+                  // Use pthread_delay_np or nanosleep whenever possible here in the no_interruption_point
+                  // namespace because they do not provide an interruption point.
+    #   if defined(BOOST_HAS_PTHREAD_DELAY_NP)
+    #     if defined(__IBMCPP__) ||  defined(_AIX)
+                  BOOST_VERIFY(!pthread_delay_np(const_cast<timespec*>(&ts.getTs())));
+    #     else
+                  BOOST_VERIFY(!pthread_delay_np(&ts.getTs()));
+    #     endif
+    #   elif defined(BOOST_HAS_NANOSLEEP)
+                  nanosleep(&ts.getTs(), 0);
+    #   else
+                  // This should never be reached due to BOOST_THREAD_SLEEP_FOR_IS_STEADY
+    #   endif
+                }
+          }
+        }
+      }
+
+        void yield() BOOST_NOEXCEPT
+        {
+#   if defined(BOOST_HAS_SCHED_YIELD)
+            BOOST_VERIFY(!sched_yield());
+#   elif defined(BOOST_HAS_PTHREAD_YIELD)
+            BOOST_VERIFY(!pthread_yield());
+//#   elif defined BOOST_THREAD_USES_DATETIME
+//            ::boost::xtime xt;
+//            xtime_get(&xt, TIME_UTC_);
+//            sleep(xt);
+//            sleep_for(chrono::milliseconds(0));
+#   else
+            mutex mx;
+            unique_lock<mutex> lock(mx);
+            condition_variable cond;
+            cond.do_wait_until(lock, detail::internal_platform_clock::now());
+#   endif
+        }
+    }
+    unsigned thread::hardware_concurrency() BOOST_NOEXCEPT
+    {
+#if defined(PTW32_VERSION) || defined(__hpux)
+        return pthread_num_processors_np();
+#elif defined(__APPLE__) || defined(__FreeBSD__)
+        int count;
+        size_t size=sizeof(count);
+        return sysctlbyname("hw.ncpu",&count,&size,NULL,0)?0:count;
+#elif defined(BOOST_HAS_UNISTD_H) && defined(_SC_NPROCESSORS_ONLN)
+        int const count=sysconf(_SC_NPROCESSORS_ONLN);
+        return (count>0)?count:0;
+#elif defined(__VXWORKS__)
+        cpuset_t set =  ::vxCpuEnabledGet();
+  #ifdef __DCC__
+        int i;
+        for( i = 0; set; ++i)
+        {
+           set &= set -1;
+        }
+        return(i);
+  #else
+        return (__builtin_popcount(set) );
+  #endif
+#elif defined(__GLIBC__)
+        return get_nprocs();
+#else
+        return 0;
+#endif
+    }
+
+    unsigned thread::physical_concurrency() BOOST_NOEXCEPT
+    {
+#ifdef __linux__
+        try {
+            using namespace std;
+
+            ifstream proc_cpuinfo ("/proc/cpuinfo");
+
+            const string physical_id("physical id"), core_id("core id");
+
+            typedef std::pair<unsigned, unsigned> core_entry; // [physical ID, core id]
+
+            std::set<core_entry> cores;
+
+            core_entry current_core_entry;
+
+            string line;
+            while ( getline(proc_cpuinfo, line) ) {
+                if (line.empty())
+                    continue;
+
+                vector<string> key_val(2);
+                boost::split(key_val, line, boost::is_any_of(":"));
+
+                if (key_val.size() != 2)
+                  return hardware_concurrency();
+
+                string key   = key_val[0];
+                string value = key_val[1];
+                boost::trim(key);
+                boost::trim(value);
+
+                if (key == physical_id) {
+                    current_core_entry.first = boost::lexical_cast<unsigned>(value);
+                    continue;
+                }
+
+                if (key == core_id) {
+                    current_core_entry.second = boost::lexical_cast<unsigned>(value);
+                    cores.insert(current_core_entry);
+                    continue;
+                }
+            }
+            // Fall back to hardware_concurrency() in case
+            // /proc/cpuinfo is formatted differently than we expect.
+            return cores.size() != 0 ? cores.size() : hardware_concurrency();
+        } catch(...) {
+          return hardware_concurrency();
+        }
+#elif defined(__APPLE__)
+        int count;
+        size_t size=sizeof(count);
+        return sysctlbyname("hw.physicalcpu",&count,&size,NULL,0)?0:count;
+#else
+        return hardware_concurrency();
+#endif
+    }
+
+#if defined BOOST_THREAD_PROVIDES_INTERRUPTIONS
+    void thread::interrupt()
+    {
+        detail::thread_data_ptr const local_thread_info=(get_thread_info)();
+        if(local_thread_info)
+        {
+            lock_guard<mutex> lk(local_thread_info->data_mutex);
+            local_thread_info->interrupt_requested=true;
+            if(local_thread_info->current_cond)
+            {
+                boost::pthread::pthread_mutex_scoped_lock internal_lock(local_thread_info->cond_mutex);
+                BOOST_VERIFY(!posix::pthread_cond_broadcast(local_thread_info->current_cond));
+            }
+        }
+    }
+
+    bool thread::interruption_requested() const BOOST_NOEXCEPT
+    {
+        detail::thread_data_ptr const local_thread_info=(get_thread_info)();
+        if(local_thread_info)
+        {
+            lock_guard<mutex> lk(local_thread_info->data_mutex);
+            return local_thread_info->interrupt_requested;
+        }
+        else
+        {
+            return false;
+        }
+    }
+#endif
+
+    thread::native_handle_type thread::native_handle()
+    {
+        detail::thread_data_ptr const local_thread_info=(get_thread_info)();
+        if(local_thread_info)
+        {
+            lock_guard<mutex> lk(local_thread_info->data_mutex);
+            return local_thread_info->thread_handle;
+        }
+        else
+        {
+            return pthread_t();
+        }
+    }
+
+
+
+#if defined BOOST_THREAD_PROVIDES_INTERRUPTIONS
+    namespace this_thread
+    {
+        void interruption_point()
+        {
+#ifndef BOOST_NO_EXCEPTIONS
+            boost::detail::thread_data_base* const thread_info=detail::get_current_thread_data();
+            if(thread_info && thread_info->interrupt_enabled)
+            {
+                lock_guard<mutex> lg(thread_info->data_mutex);
+                if(thread_info->interrupt_requested)
+                {
+                    thread_info->interrupt_requested=false;
+                    throw thread_interrupted();
+                }
+            }
+#endif
+        }
+
+        bool interruption_enabled() BOOST_NOEXCEPT
+        {
+            boost::detail::thread_data_base* const thread_info=detail::get_current_thread_data();
+            return thread_info && thread_info->interrupt_enabled;
+        }
+
+        bool interruption_requested() BOOST_NOEXCEPT
+        {
+            boost::detail::thread_data_base* const thread_info=detail::get_current_thread_data();
+            if(!thread_info)
+            {
+                return false;
+            }
+            else
+            {
+                lock_guard<mutex> lg(thread_info->data_mutex);
+                return thread_info->interrupt_requested;
+            }
+        }
+
+        disable_interruption::disable_interruption() BOOST_NOEXCEPT:
+            interruption_was_enabled(interruption_enabled())
+        {
+            if(interruption_was_enabled)
+            {
+                detail::get_current_thread_data()->interrupt_enabled=false;
+            }
+        }
+
+        disable_interruption::~disable_interruption() BOOST_NOEXCEPT
+        {
+            if(detail::get_current_thread_data())
+            {
+                detail::get_current_thread_data()->interrupt_enabled=interruption_was_enabled;
+            }
+        }
+
+        restore_interruption::restore_interruption(disable_interruption& d) BOOST_NOEXCEPT
+        {
+            if(d.interruption_was_enabled)
+            {
+                detail::get_current_thread_data()->interrupt_enabled=true;
+            }
+        }
+
+        restore_interruption::~restore_interruption() BOOST_NOEXCEPT
+        {
+            if(detail::get_current_thread_data())
+            {
+                detail::get_current_thread_data()->interrupt_enabled=false;
+            }
+        }
+    }
+#endif
+
+    namespace detail
+    {
+        void add_thread_exit_function(thread_exit_function_base* func)
+        {
+            detail::thread_data_base* const current_thread_data(get_or_make_current_thread_data());
+            thread_exit_callback_node* const new_node=
+                heap_new<thread_exit_callback_node>(func,current_thread_data->thread_exit_callbacks);
+            current_thread_data->thread_exit_callbacks=new_node;
+        }
+
+        tss_data_node* find_tss_data(void const* key)
+        {
+            detail::thread_data_base* const current_thread_data(get_current_thread_data());
+            if(current_thread_data)
+            {
+                std::map<void const*,tss_data_node>::iterator current_node=
+                    current_thread_data->tss_data.find(key);
+                if(current_node!=current_thread_data->tss_data.end())
+                {
+                    return &current_node->second;
+                }
+            }
+            return 0;
+        }
+
+        void* get_tss_data(void const* key)
+        {
+            if(tss_data_node* const current_node=find_tss_data(key))
+            {
+                return current_node->value;
+            }
+            return 0;
+        }
+
+        void add_new_tss_node(void const* key,
+                              detail::tss_data_node::cleanup_caller_t caller,
+                              detail::tss_data_node::cleanup_func_t func,
+                              void* tss_data)
+        {
+            detail::thread_data_base* const current_thread_data(get_or_make_current_thread_data());
+            current_thread_data->tss_data.insert(std::make_pair(key,tss_data_node(caller,func,tss_data)));
+        }
+
+        void erase_tss_node(void const* key)
+        {
+            detail::thread_data_base* const current_thread_data(get_current_thread_data());
+            if(current_thread_data)
+            {
+                current_thread_data->tss_data.erase(key);
+            }
+        }
+
+        void set_tss_data(void const* key,
+                          detail::tss_data_node::cleanup_caller_t caller,
+                          detail::tss_data_node::cleanup_func_t func,
+                          void* tss_data,bool cleanup_existing)
+        {
+            if(tss_data_node* const current_node=find_tss_data(key))
+            {
+                if(cleanup_existing && current_node->func && (current_node->value!=0))
+                {
+                    (*current_node->caller)(current_node->func,current_node->value);
+                }
+                if(func || (tss_data!=0))
+                {
+                    current_node->caller=caller;
+                    current_node->func=func;
+                    current_node->value=tss_data;
+                }
+                else
+                {
+                    erase_tss_node(key);
+                }
+            }
+            else if(func || (tss_data!=0))
+            {
+                add_new_tss_node(key,caller,func,tss_data);
+            }
+        }
+    }
+
+    BOOST_THREAD_DECL void notify_all_at_thread_exit(condition_variable& cond, unique_lock<mutex> lk)
+    {
+      detail::thread_data_base* const current_thread_data(detail::get_current_thread_data());
+      if(current_thread_data)
+      {
+        current_thread_data->notify_all_at_thread_exit(&cond, lk.release());
+      }
+    }
+
+//#ifndef BOOST_NO_EXCEPTIONS
+namespace detail {
+
+    void BOOST_THREAD_DECL make_ready_at_thread_exit(shared_ptr<shared_state_base> as)
+    {
+      detail::thread_data_base* const current_thread_data(detail::get_current_thread_data());
+      if(current_thread_data)
+      {
+        current_thread_data->make_ready_at_thread_exit(as);
+      }
+    }
+}
+//#endif
+
+
+}
diff --git a/externals/boost/libs/thread/src/tss_null.cpp b/externals/boost/libs/thread/src/tss_null.cpp
new file mode 100644
index 000000000..e5e815121
--- /dev/null
+++ b/externals/boost/libs/thread/src/tss_null.cpp
@@ -0,0 +1,38 @@
+// (C) Copyright Michael Glassford 2004.
+// (C) Copyright 2007 Anthony Williams
+// Use, modification and distribution are subject to 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 <boost/thread/detail/config.hpp>
+
+#if defined(BOOST_THREAD_WIN32) && (defined(BOOST_THREAD_BUILD_LIB) || defined(BOOST_THREAD_TEST) || defined(UNDER_CE)) && (!defined(_MSC_VER) || defined(UNDER_CE))
+
+namespace boost
+{
+    /*
+    This file is a "null" implementation of tss cleanup; it's
+    purpose is to to eliminate link errors in cases
+    where it is known that tss cleanup is not needed.
+    */
+
+    void tss_cleanup_implemented(void)
+    {
+        /*
+        This function's sole purpose is to cause a link error in cases where
+        automatic tss cleanup is not implemented by Boost.Threads as a
+        reminder that user code is responsible for calling the necessary
+        functions at the appropriate times (and for implementing an a
+        tss_cleanup_implemented() function to eliminate the linker's
+        missing symbol error).
+
+        If Boost.Threads later implements automatic tss cleanup in cases
+        where it currently doesn't (which is the plan), the duplicate
+        symbol error will warn the user that their custom solution is no
+        longer needed and can be removed.
+        */
+    }
+
+}
+
+#endif //defined(BOOST_THREAD_WIN32) && defined(BOOST_THREAD_BUILD_LIB) && !defined(_MSC_VER)
diff --git a/externals/boost/libs/thread/src/win32/thread.cpp b/externals/boost/libs/thread/src/win32/thread.cpp
new file mode 100644
index 000000000..000ab8779
--- /dev/null
+++ b/externals/boost/libs/thread/src/win32/thread.cpp
@@ -0,0 +1,992 @@
+// 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)
+// (C) Copyright 2007 Anthony Williams
+// (C) Copyright 2007 David Deakins
+// (C) Copyright 2011-2018 Vicente J. Botet Escriba
+
+//#define BOOST_THREAD_VERSION 3
+
+#include <boost/winapi/config.hpp>
+#include <boost/thread/thread_only.hpp>
+#include <boost/thread/once.hpp>
+#include <boost/thread/tss.hpp>
+#include <boost/thread/condition_variable.hpp>
+#include <boost/thread/detail/tss_hooks.hpp>
+#include <boost/thread/future.hpp>
+#include <boost/assert.hpp>
+#include <boost/cstdint.hpp>
+#if defined BOOST_THREAD_USES_DATETIME
+#include <boost/date_time/posix_time/conversion.hpp>
+#include <boost/thread/thread_time.hpp>
+#endif
+#include <boost/thread/csbl/memory/unique_ptr.hpp>
+#include <memory>
+#include <algorithm>
+#ifndef UNDER_CE
+#include <process.h>
+#endif
+#include <stdio.h>
+#include <windows.h>
+#include <boost/predef/platform.h>
+
+#if BOOST_PLAT_WINDOWS_RUNTIME
+#include <mutex>
+#include <atomic>
+#include <Activation.h>
+#include <wrl\client.h>
+#include <wrl\event.h>
+#include <wrl\wrappers\corewrappers.h>
+#include <wrl\ftm.h>
+#include <windows.system.threading.h>
+#pragma comment(lib, "runtimeobject.lib")
+#endif
+
+namespace boost
+{
+  namespace detail
+  {
+    thread_data_base::~thread_data_base()
+    {
+        for (notify_list_t::iterator i = notify.begin(), e = notify.end();
+                i != e; ++i)
+        {
+            i->second->unlock();
+            i->first->notify_all();
+        }
+//#ifndef BOOST_NO_EXCEPTIONS
+        for (async_states_t::iterator i = async_states_.begin(), e = async_states_.end();
+                i != e; ++i)
+        {
+            (*i)->notify_deferred();
+        }
+//#endif
+    }
+  }
+
+    namespace
+    {
+#ifdef BOOST_THREAD_PROVIDES_ONCE_CXX11
+        boost::once_flag current_thread_tls_init_flag;
+#else
+        boost::once_flag current_thread_tls_init_flag=BOOST_ONCE_INIT;
+#endif
+#if defined(UNDER_CE)
+        // Windows CE does not define the TLS_OUT_OF_INDEXES constant.
+#define TLS_OUT_OF_INDEXES 0xFFFFFFFF
+#endif
+#if !BOOST_PLAT_WINDOWS_RUNTIME
+        DWORD current_thread_tls_key=TLS_OUT_OF_INDEXES;
+#else
+        __declspec(thread) boost::detail::thread_data_base* current_thread_data_base;
+#endif
+
+        void create_current_thread_tls_key()
+        {
+            tss_cleanup_implemented(); // if anyone uses TSS, we need the cleanup linked in
+#if !BOOST_PLAT_WINDOWS_RUNTIME
+            current_thread_tls_key=TlsAlloc();
+            BOOST_ASSERT(current_thread_tls_key!=TLS_OUT_OF_INDEXES);
+#endif
+        }
+
+        void cleanup_tls_key()
+        {
+#if !BOOST_PLAT_WINDOWS_RUNTIME
+            if(current_thread_tls_key!=TLS_OUT_OF_INDEXES)
+            {
+                TlsFree(current_thread_tls_key);
+                current_thread_tls_key=TLS_OUT_OF_INDEXES;
+            }
+#endif
+        }
+
+        void set_current_thread_data(detail::thread_data_base* new_data)
+        {
+            boost::call_once(current_thread_tls_init_flag,create_current_thread_tls_key);
+#if BOOST_PLAT_WINDOWS_RUNTIME
+            current_thread_data_base = new_data;
+#else
+            if (current_thread_tls_key != TLS_OUT_OF_INDEXES)
+            {
+                BOOST_VERIFY(TlsSetValue(current_thread_tls_key, new_data));
+            }
+            else
+            {
+                BOOST_VERIFY(false);
+                //boost::throw_exception(thread_resource_error());
+            }
+#endif
+        }
+    }
+
+    namespace detail
+    {
+      thread_data_base* get_current_thread_data()
+      {
+#if BOOST_PLAT_WINDOWS_RUNTIME
+          return current_thread_data_base;
+#else
+          if (current_thread_tls_key == TLS_OUT_OF_INDEXES)
+          {
+              return 0;
+          }
+          return (detail::thread_data_base*)TlsGetValue(current_thread_tls_key);
+#endif
+      }
+    }
+
+    namespace
+    {
+#ifndef BOOST_HAS_THREADEX
+// Windows CE doesn't define _beginthreadex
+
+        struct ThreadProxyData
+        {
+            typedef unsigned (__stdcall* func)(void*);
+            func start_address_;
+            void* arglist_;
+            ThreadProxyData(func start_address,void* arglist) : start_address_(start_address), arglist_(arglist) {}
+        };
+
+        DWORD WINAPI ThreadProxy(LPVOID args)
+        {
+            boost::csbl::unique_ptr<ThreadProxyData> data(reinterpret_cast<ThreadProxyData*>(args));
+            DWORD ret=data->start_address_(data->arglist_);
+            return ret;
+        }
+
+        inline uintptr_t _beginthreadex(void* security, unsigned stack_size, unsigned (__stdcall* start_address)(void*),
+                                              void* arglist, unsigned initflag, unsigned* thrdaddr)
+        {
+            DWORD threadID;
+            ThreadProxyData* data = new ThreadProxyData(start_address,arglist);
+            HANDLE hthread=CreateThread(static_cast<LPSECURITY_ATTRIBUTES>(security),stack_size,ThreadProxy,
+                                        data,initflag,&threadID);
+            if (hthread==0) {
+              delete data;
+              return 0;
+            }
+            *thrdaddr=threadID;
+            return reinterpret_cast<uintptr_t const>(hthread);
+        }
+
+#endif
+
+    }
+
+    namespace detail
+    {
+        struct thread_exit_callback_node
+        {
+            boost::detail::thread_exit_function_base* func;
+            thread_exit_callback_node* next;
+
+            thread_exit_callback_node(boost::detail::thread_exit_function_base* func_,
+                                      thread_exit_callback_node* next_):
+                func(func_),next(next_)
+            {}
+        };
+
+    }
+
+#if BOOST_PLAT_WINDOWS_RUNTIME
+    namespace detail
+    {
+        std::atomic_uint threadCount;
+
+        bool win32::scoped_winrt_thread::start(thread_func address, void *parameter, unsigned int *thrdId)
+        {
+            Microsoft::WRL::ComPtr<ABI::Windows::System::Threading::IThreadPoolStatics> threadPoolFactory;
+            HRESULT hr = ::Windows::Foundation::GetActivationFactory(
+                Microsoft::WRL::Wrappers::HStringReference(RuntimeClass_Windows_System_Threading_ThreadPool).Get(),
+                &threadPoolFactory);
+            if (hr != S_OK)
+            {
+                return false;
+            }
+
+            // Create event for tracking work item completion.
+            *thrdId = ++threadCount;
+            handle completionHandle = CreateEventExW(NULL, NULL, 0, EVENT_ALL_ACCESS);
+            if (!completionHandle)
+            {
+                return false;
+            }
+            m_completionHandle = completionHandle;
+
+            // Create new work item.
+            Microsoft::WRL::ComPtr<ABI::Windows::System::Threading::IWorkItemHandler> workItem =
+                Microsoft::WRL::Callback<Microsoft::WRL::Implements<Microsoft::WRL::RuntimeClassFlags<Microsoft::WRL::ClassicCom>, ABI::Windows::System::Threading::IWorkItemHandler, Microsoft::WRL::FtmBase>>
+                ([address, parameter, completionHandle](ABI::Windows::Foundation::IAsyncAction *)
+            {
+                // Add a reference since we need to access the completionHandle after the thread_start_function.
+                // This is to handle cases where detach() was called and run_thread_exit_callbacks() would end
+                // up closing the handle.
+                ::boost::detail::thread_data_base* const thread_info(reinterpret_cast<::boost::detail::thread_data_base*>(parameter));
+                intrusive_ptr_add_ref(thread_info);
+
+                __try
+                {
+                    address(parameter);
+                }
+                __finally
+                {
+                    SetEvent(completionHandle);
+                    intrusive_ptr_release(thread_info);
+                }
+                return S_OK;
+            });
+
+            // Schedule work item on the threadpool.
+            Microsoft::WRL::ComPtr<ABI::Windows::Foundation::IAsyncAction> asyncAction;
+            hr = threadPoolFactory->RunWithPriorityAndOptionsAsync(
+                workItem.Get(),
+                ABI::Windows::System::Threading::WorkItemPriority_Normal,
+                ABI::Windows::System::Threading::WorkItemOptions_TimeSliced,
+                &asyncAction);
+            return hr == S_OK;
+        }
+    }
+#endif
+
+    namespace
+    {
+        void run_thread_exit_callbacks()
+        {
+            detail::thread_data_ptr current_thread_data(detail::get_current_thread_data(),false);
+            if(current_thread_data)
+            {
+                while(! current_thread_data->tss_data.empty() || current_thread_data->thread_exit_callbacks)
+                {
+                    while(current_thread_data->thread_exit_callbacks)
+                    {
+                        detail::thread_exit_callback_node* const current_node=current_thread_data->thread_exit_callbacks;
+                        current_thread_data->thread_exit_callbacks=current_node->next;
+                        if(current_node->func)
+                        {
+                            (*current_node->func)();
+                            boost::detail::heap_delete(current_node->func);
+                        }
+                        boost::detail::heap_delete(current_node);
+                    }
+                    while (!current_thread_data->tss_data.empty())
+                    {
+                        std::map<void const*,detail::tss_data_node>::iterator current
+                            = current_thread_data->tss_data.begin();
+                        if(current->second.func && (current->second.value!=0))
+                        {
+                            (*current->second.caller)(current->second.func,current->second.value);
+                        }
+                        current_thread_data->tss_data.erase(current);
+                    }
+                }
+                set_current_thread_data(0);
+            }
+        }
+
+        unsigned __stdcall thread_start_function(void* param)
+        {
+            detail::thread_data_base* const thread_info(reinterpret_cast<detail::thread_data_base*>(param));
+            set_current_thread_data(thread_info);
+#if defined BOOST_THREAD_PROVIDES_INTERRUPTIONS
+            BOOST_TRY
+            {
+#endif
+                thread_info->run();
+#if defined BOOST_THREAD_PROVIDES_INTERRUPTIONS
+            }
+            BOOST_CATCH(thread_interrupted const&)
+            {
+            }
+            // Unhandled exceptions still cause the application to terminate
+            BOOST_CATCH_END
+#endif
+            run_thread_exit_callbacks();
+            return 0;
+        }
+    }
+
+    thread::thread() BOOST_NOEXCEPT
+    {}
+
+    bool thread::start_thread_noexcept()
+    {
+#if BOOST_PLAT_WINDOWS_RUNTIME
+         intrusive_ptr_add_ref(thread_info.get());
+         if (!thread_info->thread_handle.start(&thread_start_function, thread_info.get(), &thread_info->id))
+         {
+             intrusive_ptr_release(thread_info.get());
+             return false;
+         }
+         return true;
+#else
+        uintptr_t const new_thread=_beginthreadex(0,0,&thread_start_function,thread_info.get(),CREATE_SUSPENDED,&thread_info->id);
+        if(!new_thread)
+        {
+            return false;
+        }
+        intrusive_ptr_add_ref(thread_info.get());
+        thread_info->thread_handle=(detail::win32::handle)(new_thread);
+        ResumeThread(thread_info->thread_handle);
+        return true;
+#endif
+    }
+
+    bool thread::start_thread_noexcept(const attributes& attr)
+    {
+#if BOOST_PLAT_WINDOWS_RUNTIME
+        // Stack size isn't supported with Windows Runtime.
+        attr;
+        return start_thread_noexcept();
+#else
+      uintptr_t const new_thread=_beginthreadex(0,static_cast<unsigned int>(attr.get_stack_size()),&thread_start_function,thread_info.get(),
+                                                CREATE_SUSPENDED | STACK_SIZE_PARAM_IS_A_RESERVATION, &thread_info->id);
+      if(!new_thread)
+      {
+        return false;
+      }
+      intrusive_ptr_add_ref(thread_info.get());
+      thread_info->thread_handle=(detail::win32::handle)(new_thread);
+      ResumeThread(thread_info->thread_handle);
+      return true;
+#endif
+    }
+
+    thread::thread(detail::thread_data_ptr data):
+        thread_info(data)
+    {}
+
+    namespace
+    {
+        struct externally_launched_thread:
+            detail::thread_data_base
+        {
+            externally_launched_thread()
+            {
+                ++count;
+#if defined BOOST_THREAD_PROVIDES_INTERRUPTIONS
+                interruption_enabled=false;
+#endif
+            }
+            ~externally_launched_thread() {
+              BOOST_ASSERT(notify.empty());
+              notify.clear();
+//#ifndef BOOST_NO_EXCEPTIONS
+              BOOST_ASSERT(async_states_.empty());
+              async_states_.clear();
+//#endif
+            }
+
+            void run()
+            {}
+            void notify_all_at_thread_exit(condition_variable*, mutex*)
+            {}
+
+        private:
+            externally_launched_thread(externally_launched_thread&);
+            void operator=(externally_launched_thread&);
+        };
+
+        void make_external_thread_data()
+        {
+            externally_launched_thread* me=detail::heap_new<externally_launched_thread>();
+            BOOST_TRY
+            {
+                set_current_thread_data(me);
+            }
+            BOOST_CATCH(...)
+            {
+                detail::heap_delete(me);
+                BOOST_RETHROW
+            }
+            BOOST_CATCH_END
+        }
+
+        detail::thread_data_base* get_or_make_current_thread_data()
+        {
+            detail::thread_data_base* current_thread_data(detail::get_current_thread_data());
+            if(!current_thread_data)
+            {
+                make_external_thread_data();
+                current_thread_data=detail::get_current_thread_data();
+            }
+            return current_thread_data;
+        }
+    }
+
+    thread::id thread::get_id() const BOOST_NOEXCEPT
+    {
+#if defined BOOST_THREAD_PROVIDES_BASIC_THREAD_ID
+        detail::thread_data_ptr local_thread_info=(get_thread_info)();
+        if(!local_thread_info)
+        {
+            return 0;
+        }
+        return local_thread_info->id;
+#else
+        return thread::id((get_thread_info)());
+#endif
+    }
+
+    bool thread::joinable() const BOOST_NOEXCEPT
+    {
+        detail::thread_data_ptr local_thread_info = (get_thread_info)();
+        if(!local_thread_info)
+        {
+            return false;
+        }
+        return true;
+    }
+    bool thread::join_noexcept()
+    {
+        detail::thread_data_ptr local_thread_info=(get_thread_info)();
+        if(local_thread_info)
+        {
+            this_thread::interruptible_wait(this->native_handle(), detail::internal_platform_timepoint::getMax());
+            release_handle();
+            return true;
+        }
+        else
+        {
+          return false;
+        }
+    }
+
+    bool thread::do_try_join_until_noexcept(detail::internal_platform_timepoint const &timeout, bool& res)
+    {
+      detail::thread_data_ptr local_thread_info=(get_thread_info)();
+      if(local_thread_info)
+      {
+          if(!this_thread::interruptible_wait(this->native_handle(), timeout))
+          {
+            res=false;
+            return true;
+          }
+          release_handle();
+          res=true;
+          return true;
+      }
+      else
+      {
+        return false;
+      }
+    }
+
+    void thread::detach()
+    {
+        release_handle();
+    }
+
+    void thread::release_handle()
+    {
+        thread_info=0;
+    }
+
+#if defined BOOST_THREAD_PROVIDES_INTERRUPTIONS
+    void thread::interrupt()
+    {
+        detail::thread_data_ptr local_thread_info=(get_thread_info)();
+        if(local_thread_info)
+        {
+            local_thread_info->interrupt();
+        }
+    }
+
+    bool thread::interruption_requested() const BOOST_NOEXCEPT
+    {
+        detail::thread_data_ptr local_thread_info=(get_thread_info)();
+        return local_thread_info.get() && (winapi::WaitForSingleObjectEx(local_thread_info->interruption_handle,0,0)==0);
+    }
+
+#endif
+
+    unsigned thread::hardware_concurrency() BOOST_NOEXCEPT
+    {
+        detail::win32::system_info info;
+        detail::win32::get_system_info(&info);
+        return info.dwNumberOfProcessors;
+    }
+
+    unsigned thread::physical_concurrency() BOOST_NOEXCEPT
+    {
+      // a bit too strict: Windows XP with SP3 would be sufficient
+#if BOOST_PLAT_WINDOWS_RUNTIME                                    \
+    || ( BOOST_USE_WINAPI_VERSION <= BOOST_WINAPI_VERSION_WINXP ) \
+    || ( ( defined(__MINGW32__) && !defined(__MINGW64__) ) && _WIN32_WINNT < 0x0600)
+        return 0;
+#else
+        unsigned cores = 0;
+        DWORD size = 0;
+
+        GetLogicalProcessorInformation(NULL, &size);
+        if (ERROR_INSUFFICIENT_BUFFER != GetLastError())
+            return 0;
+        const size_t Elements = size / sizeof(SYSTEM_LOGICAL_PROCESSOR_INFORMATION);
+
+        std::vector<SYSTEM_LOGICAL_PROCESSOR_INFORMATION> buffer(Elements);
+        if (GetLogicalProcessorInformation(&buffer.front(), &size) == FALSE)
+            return 0;
+
+
+        for (size_t i = 0; i < Elements; ++i) {
+            if (buffer[i].Relationship == RelationProcessorCore)
+                ++cores;
+        }
+        return cores;
+#endif
+    }
+
+    thread::native_handle_type thread::native_handle()
+    {
+        detail::thread_data_ptr local_thread_info=(get_thread_info)();
+        if(!local_thread_info)
+        {
+            return detail::win32::invalid_handle_value;
+        }
+#if BOOST_PLAT_WINDOWS_RUNTIME
+        // There is no 'real' Win32 handle so we return a handle that at least can be waited on.
+        return local_thread_info->thread_handle.waitable_handle();
+#else
+        return (detail::win32::handle)local_thread_info->thread_handle;
+#endif
+    }
+
+    detail::thread_data_ptr thread::get_thread_info BOOST_PREVENT_MACRO_SUBSTITUTION () const
+    {
+        return thread_info;
+    }
+
+    namespace this_thread
+    {
+#ifndef UNDER_CE
+#if !BOOST_PLAT_WINDOWS_RUNTIME
+        namespace detail_
+        {
+            typedef struct _REASON_CONTEXT {
+                ULONG Version;
+                DWORD Flags;
+                union {
+                    LPWSTR SimpleReasonString;
+                    struct {
+                        HMODULE LocalizedReasonModule;
+                        ULONG   LocalizedReasonId;
+                        ULONG   ReasonStringCount;
+                        LPWSTR  *ReasonStrings;
+                    } Detailed;
+                } Reason;
+            } REASON_CONTEXT, *PREASON_CONTEXT;
+            typedef BOOL (WINAPI *setwaitabletimerex_t)(HANDLE, const LARGE_INTEGER *, LONG, PTIMERAPCROUTINE, LPVOID, PREASON_CONTEXT, ULONG);
+            static inline BOOL WINAPI SetWaitableTimerEx_emulation(HANDLE hTimer, const LARGE_INTEGER *lpDueTime, LONG lPeriod, PTIMERAPCROUTINE pfnCompletionRoutine, LPVOID lpArgToCompletionRoutine, PREASON_CONTEXT WakeContext, ULONG TolerableDelay)
+            {
+                return SetWaitableTimer(hTimer, lpDueTime, lPeriod, pfnCompletionRoutine, lpArgToCompletionRoutine, FALSE);
+            }
+#ifdef _MSC_VER
+#pragma warning(push)
+#pragma warning(disable: 6387) // MSVC sanitiser warns that GetModuleHandleA() might fail
+#endif
+            static inline setwaitabletimerex_t SetWaitableTimerEx()
+            {
+                static setwaitabletimerex_t setwaitabletimerex_impl;
+                if(setwaitabletimerex_impl)
+                    return setwaitabletimerex_impl;
+                void (*addr)()=(void (*)()) GetProcAddress(
+#if !defined(BOOST_NO_ANSI_APIS)
+                    GetModuleHandleA("KERNEL32.DLL"),
+#else
+                    GetModuleHandleW(L"KERNEL32.DLL"),
+#endif
+                    "SetWaitableTimerEx");
+                if(addr)
+                    setwaitabletimerex_impl=(setwaitabletimerex_t) addr;
+                else
+                    setwaitabletimerex_impl=&SetWaitableTimerEx_emulation;
+                return setwaitabletimerex_impl;
+            }
+#ifdef _MSC_VER
+#pragma warning(pop)
+#endif
+        }
+#endif
+#endif
+        bool interruptible_wait(detail::win32::handle handle_to_wait_for, detail::internal_platform_timepoint const &timeout)
+        {
+            detail::win32::handle handles[4]={0};
+            unsigned handle_count=0;
+            unsigned wait_handle_index=~0U;
+#if defined BOOST_THREAD_PROVIDES_INTERRUPTIONS
+            unsigned interruption_index=~0U;
+#endif
+            unsigned timeout_index=~0U;
+            if(handle_to_wait_for!=detail::win32::invalid_handle_value)
+            {
+                wait_handle_index=handle_count;
+                handles[handle_count++]=handle_to_wait_for;
+            }
+#if defined BOOST_THREAD_PROVIDES_INTERRUPTIONS
+            if(detail::get_current_thread_data() && detail::get_current_thread_data()->interruption_enabled)
+            {
+                interruption_index=handle_count;
+                handles[handle_count++]=detail::get_current_thread_data()->interruption_handle;
+            }
+#endif
+            detail::win32::handle_manager timer_handle;
+
+#ifndef UNDER_CE
+#if !BOOST_PLAT_WINDOWS_RUNTIME
+            // Preferentially use coalescing timers for better power consumption and timer accuracy
+            if(timeout != detail::internal_platform_timepoint::getMax())
+            {
+                boost::intmax_t const time_left_msec = (timeout - detail::internal_platform_clock::now()).getMs();
+                timer_handle=CreateWaitableTimer(NULL,false,NULL);
+                if(timer_handle!=0)
+                {
+                    ULONG const min_tolerable=32; // Empirical testing shows Windows ignores this when <= 26
+                    ULONG const max_tolerable=1000;
+                    ULONG tolerable=min_tolerable;
+                    if(time_left_msec/20>tolerable)  // 5%
+                    {
+                        tolerable=static_cast<ULONG>(time_left_msec/20);
+                        if(tolerable>max_tolerable)
+                            tolerable=max_tolerable;
+                    }
+                    LARGE_INTEGER due_time={{0,0}};
+                    if(time_left_msec>0)
+                    {
+                        due_time.QuadPart=-(time_left_msec*10000); // negative indicates relative time
+                    }
+                    bool const set_time_succeeded=detail_::SetWaitableTimerEx()(timer_handle,&due_time,0,0,0,NULL,tolerable)!=0;
+                    if(set_time_succeeded)
+                    {
+                        timeout_index=handle_count;
+                        handles[handle_count++]=timer_handle;
+                    }
+                }
+            }
+#endif
+#endif
+
+            bool const using_timer=timeout_index!=~0u;
+            boost::intmax_t time_left_msec(INFINITE);
+            if(!using_timer && timeout != detail::internal_platform_timepoint::getMax())
+            {
+                time_left_msec = (timeout - detail::internal_platform_clock::now()).getMs();
+                if(time_left_msec < 0)
+                {
+                    time_left_msec = 0;
+                }
+            }
+
+            do
+            {
+                if(handle_count)
+                {
+                    unsigned long const notified_index=winapi::WaitForMultipleObjectsEx(handle_count,handles,false,static_cast<DWORD>(time_left_msec), 0);
+                    if(notified_index<handle_count)
+                    {
+                        if(notified_index==wait_handle_index)
+                        {
+                            return true;
+                        }
+#if defined BOOST_THREAD_PROVIDES_INTERRUPTIONS
+                        else if(notified_index==interruption_index)
+                        {
+                            winapi::ResetEvent(detail::get_current_thread_data()->interruption_handle);
+                            throw thread_interrupted();
+                        }
+#endif
+                        else if(notified_index==timeout_index)
+                        {
+                            return false;
+                        }
+                    }
+                }
+                else
+                {
+                    detail::win32::sleep(static_cast<unsigned long>(time_left_msec));
+                }
+
+                if(!using_timer && timeout != detail::internal_platform_timepoint::getMax())
+                {
+                    time_left_msec = (timeout - detail::internal_platform_clock::now()).getMs();
+                }
+            }
+            while(time_left_msec == INFINITE || time_left_msec > 0);
+            return false;
+        }
+
+        namespace no_interruption_point
+        {
+        bool non_interruptible_wait(detail::win32::handle handle_to_wait_for, detail::internal_platform_timepoint const &timeout)
+        {
+            detail::win32::handle handles[3]={0};
+            unsigned handle_count=0;
+            unsigned wait_handle_index=~0U;
+            unsigned timeout_index=~0U;
+            if(handle_to_wait_for!=detail::win32::invalid_handle_value)
+            {
+                wait_handle_index=handle_count;
+                handles[handle_count++]=handle_to_wait_for;
+            }
+            detail::win32::handle_manager timer_handle;
+
+#ifndef UNDER_CE
+#if !BOOST_PLAT_WINDOWS_RUNTIME
+            // Preferentially use coalescing timers for better power consumption and timer accuracy
+            if(timeout != detail::internal_platform_timepoint::getMax())
+            {
+                boost::intmax_t const time_left_msec = (timeout - detail::internal_platform_clock::now()).getMs();
+                timer_handle=CreateWaitableTimer(NULL,false,NULL);
+                if(timer_handle!=0)
+                {
+                    ULONG const min_tolerable=32; // Empirical testing shows Windows ignores this when <= 26
+                    ULONG const max_tolerable=1000;
+                    ULONG tolerable=min_tolerable;
+                    if(time_left_msec/20>tolerable)  // 5%
+                    {
+                        tolerable=static_cast<ULONG>(time_left_msec/20);
+                        if(tolerable>max_tolerable)
+                            tolerable=max_tolerable;
+                    }
+                    LARGE_INTEGER due_time={{0,0}};
+                    if(time_left_msec>0)
+                    {
+                        due_time.QuadPart=-(time_left_msec*10000); // negative indicates relative time
+                    }
+                    bool const set_time_succeeded=detail_::SetWaitableTimerEx()(timer_handle,&due_time,0,0,0,NULL,tolerable)!=0;
+                    if(set_time_succeeded)
+                    {
+                        timeout_index=handle_count;
+                        handles[handle_count++]=timer_handle;
+                    }
+                }
+            }
+#endif
+#endif
+
+            bool const using_timer=timeout_index!=~0u;
+            boost::intmax_t time_left_msec(INFINITE);
+            if(!using_timer && timeout != detail::internal_platform_timepoint::getMax())
+            {
+                time_left_msec = (timeout - detail::internal_platform_clock::now()).getMs();
+                if(time_left_msec < 0)
+                {
+                    time_left_msec = 0;
+                }
+            }
+
+            do
+            {
+                if(handle_count)
+                {
+                    unsigned long const notified_index=winapi::WaitForMultipleObjectsEx(handle_count,handles,false,static_cast<DWORD>(time_left_msec), 0);
+                    if(notified_index<handle_count)
+                    {
+                        if(notified_index==wait_handle_index)
+                        {
+                            return true;
+                        }
+                        else if(notified_index==timeout_index)
+                        {
+                            return false;
+                        }
+                    }
+                }
+                else
+                {
+                    detail::win32::sleep(static_cast<unsigned long>(time_left_msec));
+                }
+
+                if(!using_timer && timeout != detail::internal_platform_timepoint::getMax())
+                {
+                    time_left_msec = (timeout - detail::internal_platform_clock::now()).getMs();
+                }
+            }
+            while(time_left_msec == INFINITE || time_left_msec > 0);
+            return false;
+        }
+        }
+
+        thread::id get_id() BOOST_NOEXCEPT
+        {
+#if defined BOOST_THREAD_PROVIDES_BASIC_THREAD_ID
+#if BOOST_PLAT_WINDOWS_RUNTIME
+            detail::thread_data_base* current_thread_data(detail::get_current_thread_data());
+            if (current_thread_data)
+            {
+                return current_thread_data->id;
+            }
+#endif
+            return winapi::GetCurrentThreadId();
+#else
+            return thread::id(get_or_make_current_thread_data());
+#endif
+        }
+
+#if defined BOOST_THREAD_PROVIDES_INTERRUPTIONS
+        void interruption_point()
+        {
+            if(interruption_enabled() && interruption_requested())
+            {
+                winapi::ResetEvent(detail::get_current_thread_data()->interruption_handle);
+                throw thread_interrupted();
+            }
+        }
+
+        bool interruption_enabled() BOOST_NOEXCEPT
+        {
+            return detail::get_current_thread_data() && detail::get_current_thread_data()->interruption_enabled;
+        }
+
+        bool interruption_requested() BOOST_NOEXCEPT
+        {
+            return detail::get_current_thread_data() && (winapi::WaitForSingleObjectEx(detail::get_current_thread_data()->interruption_handle,0,0)==0);
+        }
+#endif
+
+        void yield() BOOST_NOEXCEPT
+        {
+            detail::win32::sleep(0);
+        }
+
+#if defined BOOST_THREAD_PROVIDES_INTERRUPTIONS
+        disable_interruption::disable_interruption() BOOST_NOEXCEPT:
+            interruption_was_enabled(interruption_enabled())
+        {
+            if(interruption_was_enabled)
+            {
+                detail::get_current_thread_data()->interruption_enabled=false;
+            }
+        }
+
+        disable_interruption::~disable_interruption() BOOST_NOEXCEPT
+        {
+            if(detail::get_current_thread_data())
+            {
+                detail::get_current_thread_data()->interruption_enabled=interruption_was_enabled;
+            }
+        }
+
+        restore_interruption::restore_interruption(disable_interruption& d) BOOST_NOEXCEPT
+        {
+            if(d.interruption_was_enabled)
+            {
+                detail::get_current_thread_data()->interruption_enabled=true;
+            }
+        }
+
+        restore_interruption::~restore_interruption() BOOST_NOEXCEPT
+        {
+            if(detail::get_current_thread_data())
+            {
+                detail::get_current_thread_data()->interruption_enabled=false;
+            }
+        }
+#endif
+    }
+
+    namespace detail
+    {
+        void add_thread_exit_function(thread_exit_function_base* func)
+        {
+            detail::thread_data_base* const current_thread_data(get_or_make_current_thread_data());
+            thread_exit_callback_node* const new_node=
+                heap_new<thread_exit_callback_node>(
+                    func,current_thread_data->thread_exit_callbacks);
+            current_thread_data->thread_exit_callbacks=new_node;
+        }
+
+        tss_data_node* find_tss_data(void const* key)
+        {
+            detail::thread_data_base* const current_thread_data(get_current_thread_data());
+            if(current_thread_data)
+            {
+                std::map<void const*,tss_data_node>::iterator current_node=
+                    current_thread_data->tss_data.find(key);
+                if(current_node!=current_thread_data->tss_data.end())
+                {
+                    return &current_node->second;
+                }
+            }
+            return NULL;
+        }
+
+        void* get_tss_data(void const* key)
+        {
+            if(tss_data_node* const current_node=find_tss_data(key))
+            {
+                return current_node->value;
+            }
+            return NULL;
+        }
+
+        void add_new_tss_node(void const* key,
+                              detail::tss_data_node::cleanup_caller_t caller,
+                              detail::tss_data_node::cleanup_func_t func,
+                              void* tss_data)
+        {
+            detail::thread_data_base* const current_thread_data(get_or_make_current_thread_data());
+            current_thread_data->tss_data.insert(std::make_pair(key,tss_data_node(caller,func,tss_data)));
+        }
+
+        void erase_tss_node(void const* key)
+        {
+            detail::thread_data_base* const current_thread_data(get_or_make_current_thread_data());
+            current_thread_data->tss_data.erase(key);
+        }
+
+        void set_tss_data(void const* key,
+                          detail::tss_data_node::cleanup_caller_t caller,
+                          detail::tss_data_node::cleanup_func_t func,
+                          void* tss_data,bool cleanup_existing)
+        {
+            if(tss_data_node* const current_node=find_tss_data(key))
+            {
+                if(cleanup_existing && current_node->func && (current_node->value!=0))
+                {
+                    (*current_node->caller)(current_node->func,current_node->value);
+                }
+                if(func || (tss_data!=0))
+                {
+                    current_node->caller=caller;
+                    current_node->func=func;
+                    current_node->value=tss_data;
+                }
+                else
+                {
+                    erase_tss_node(key);
+                }
+            }
+            else if(func || (tss_data!=0))
+            {
+                add_new_tss_node(key,caller,func,tss_data);
+            }
+        }
+    }
+
+    BOOST_THREAD_DECL void __cdecl on_process_enter()
+    {}
+
+    BOOST_THREAD_DECL void __cdecl on_thread_enter()
+    {}
+
+    BOOST_THREAD_DECL void __cdecl on_process_exit()
+    {
+        boost::cleanup_tls_key();
+    }
+
+    BOOST_THREAD_DECL void __cdecl on_thread_exit()
+    {
+        boost::run_thread_exit_callbacks();
+    }
+
+    BOOST_THREAD_DECL void notify_all_at_thread_exit(condition_variable& cond, unique_lock<mutex> lk)
+    {
+      detail::thread_data_base* const current_thread_data(detail::get_current_thread_data());
+      if(current_thread_data)
+      {
+        current_thread_data->notify_all_at_thread_exit(&cond, lk.release());
+      }
+    }
+}
+
diff --git a/externals/boost/libs/thread/src/win32/thread_primitives.cpp b/externals/boost/libs/thread/src/win32/thread_primitives.cpp
new file mode 100644
index 000000000..ea8ff364e
--- /dev/null
+++ b/externals/boost/libs/thread/src/win32/thread_primitives.cpp
@@ -0,0 +1,156 @@
+//  thread_primitives.cpp
+//
+//  (C) Copyright 2018 Andrey Semashev
+//
+//  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 <boost/winapi/config.hpp>
+#include <boost/winapi/dll.hpp>
+#include <boost/winapi/time.hpp>
+#include <boost/winapi/event.hpp>
+#include <boost/winapi/handles.hpp>
+#include <boost/winapi/thread_pool.hpp>
+#include <cstdlib>
+#include <boost/config.hpp>
+#include <boost/cstdint.hpp>
+#include <boost/memory_order.hpp>
+#include <boost/atomic/atomic.hpp>
+#include <boost/thread/win32/interlocked_read.hpp>
+#include <boost/thread/win32/thread_primitives.hpp>
+
+namespace boost {
+namespace detail {
+namespace win32 {
+
+#if BOOST_USE_WINAPI_VERSION >= BOOST_WINAPI_VERSION_WIN6
+
+// Directly use API from Vista and later
+BOOST_THREAD_DECL boost::detail::win32::detail::gettickcount64_t gettickcount64 = &::boost::winapi::GetTickCount64;
+
+#else // BOOST_USE_WINAPI_VERSION >= BOOST_WINAPI_VERSION_WIN6
+
+namespace {
+
+enum init_state
+{
+    uninitialized = 0,
+    in_progress,
+    initialized
+};
+
+struct get_tick_count64_state
+{
+    boost::atomic< uint64_t > ticks;
+    boost::atomic< init_state > init;
+    boost::winapi::HANDLE_ wait_event;
+    boost::winapi::HANDLE_ wait_handle;
+};
+
+// Zero-initialized initially
+BOOST_ALIGNMENT(64) static get_tick_count64_state g_state;
+
+//! Artifical implementation of GetTickCount64
+ticks_type BOOST_WINAPI_WINAPI_CC get_tick_count64()
+{
+    uint64_t old_state = g_state.ticks.load(boost::memory_order_acquire);
+
+    uint32_t new_ticks = boost::winapi::GetTickCount();
+
+    uint32_t old_ticks = static_cast< uint32_t >(old_state & UINT64_C(0x00000000ffffffff));
+    uint64_t new_state = ((old_state & UINT64_C(0xffffffff00000000)) + (static_cast< uint64_t >(new_ticks < old_ticks) << 32)) | static_cast< uint64_t >(new_ticks);
+
+    g_state.ticks.store(new_state, boost::memory_order_release);
+
+    return new_state;
+}
+
+//! The function is called periodically in the system thread pool to make sure g_state.ticks is timely updated
+void BOOST_WINAPI_NTAPI_CC refresh_get_tick_count64(boost::winapi::PVOID_, boost::winapi::BOOLEAN_)
+{
+    get_tick_count64();
+}
+
+//! Cleanup function to stop get_tick_count64 refreshes
+void cleanup_get_tick_count64()
+{
+    if (g_state.wait_handle)
+    {
+        boost::winapi::UnregisterWait(g_state.wait_handle);
+        g_state.wait_handle = NULL;
+    }
+
+    if (g_state.wait_event)
+    {
+        boost::winapi::CloseHandle(g_state.wait_event);
+        g_state.wait_event = NULL;
+    }
+}
+
+ticks_type BOOST_WINAPI_WINAPI_CC get_tick_count_init()
+{
+    boost::winapi::HMODULE_ hKernel32 = boost::winapi::GetModuleHandleW(L"kernel32.dll");
+    if (hKernel32)
+    {
+      // GetProcAddress returns a pointer to some function. It can return
+      // pointers to different functions, so it has to return something that is
+      // suitable to store any pointer to function. Microsoft chose FARPROC,
+      // which is int (WINAPI *)() on 32-bit Windows. The user is supposed to
+      // know the signature of the function he requests and perform a cast
+      // (which is a nop on this platform). The result is a pointer to function
+      // with the required signature, which is bitwise equal to what
+      // GetProcAddress returned.
+      // However, gcc >= 8 warns about that.
+#if defined(BOOST_GCC) && BOOST_GCC >= 80000
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wcast-function-type"
+#endif
+        boost::detail::win32::detail::gettickcount64_t p =
+            (boost::detail::win32::detail::gettickcount64_t)boost::winapi::get_proc_address(hKernel32, "GetTickCount64");
+#if defined(BOOST_GCC) && BOOST_GCC >= 80000
+#pragma GCC diagnostic pop
+#endif
+        if (p)
+        {
+            // Use native API
+            boost::detail::interlocked_write_release((void**)&gettickcount64, (void*)p);
+            return p();
+        }
+    }
+
+    // No native API available. Use emulation with periodic refreshes to make sure the GetTickCount wrap arounds are properly counted.
+    init_state old_init = uninitialized;
+    if (g_state.init.compare_exchange_strong(old_init, in_progress, boost::memory_order_acq_rel, boost::memory_order_relaxed))
+    {
+        if (!g_state.wait_event)
+            g_state.wait_event = boost::winapi::create_anonymous_event(NULL, false, false);
+        if (g_state.wait_event)
+        {
+            boost::winapi::BOOL_ res = boost::winapi::RegisterWaitForSingleObject(&g_state.wait_handle, g_state.wait_event, &refresh_get_tick_count64, NULL, 0x7fffffff, boost::winapi::WT_EXECUTEINWAITTHREAD_);
+            if (res)
+            {
+                std::atexit(&cleanup_get_tick_count64);
+
+                boost::detail::interlocked_write_release((void**)&gettickcount64, (void*)&get_tick_count64);
+                g_state.init.store(initialized, boost::memory_order_release);
+                goto finish;
+            }
+        }
+
+        g_state.init.store(uninitialized, boost::memory_order_release);
+    }
+
+finish:
+    return get_tick_count64();
+}
+
+} // namespace
+
+BOOST_THREAD_DECL boost::detail::win32::detail::gettickcount64_t gettickcount64 = &get_tick_count_init;
+
+#endif // BOOST_USE_WINAPI_VERSION >= BOOST_WINAPI_VERSION_WIN6
+
+} // namespace win32
+} // namespace detail
+} // namespace boost
diff --git a/externals/boost/libs/thread/src/win32/tss_dll.cpp b/externals/boost/libs/thread/src/win32/tss_dll.cpp
new file mode 100644
index 000000000..6a8549913
--- /dev/null
+++ b/externals/boost/libs/thread/src/win32/tss_dll.cpp
@@ -0,0 +1,87 @@
+// (C) Copyright Michael Glassford 2004.
+// Use, modification and distribution are subject to 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 <boost/winapi/config.hpp>
+#include <boost/thread/detail/config.hpp>
+
+
+#if defined(BOOST_THREAD_WIN32) && defined(BOOST_THREAD_BUILD_DLL)
+
+    #include <boost/thread/detail/tss_hooks.hpp>
+
+    #include <windows.h>
+
+    #if defined(BOOST_BORLANDC)
+        extern "C" BOOL WINAPI DllEntryPoint(HINSTANCE /*hInstance*/, DWORD dwReason, LPVOID /*lpReserved*/)
+    #elif defined(BOOST_EMBTC)
+        extern "C" int _libmain(DWORD dwReason)
+    #elif defined(_WIN32_WCE)
+        extern "C" BOOL WINAPI DllMain(HANDLE /*hInstance*/, DWORD dwReason, LPVOID /*lpReserved*/)
+    #else
+        extern "C" BOOL WINAPI DllMain(HINSTANCE /*hInstance*/, DWORD dwReason, LPVOID /*lpReserved*/)
+    #endif
+    {
+        switch(dwReason)
+        {
+            case DLL_PROCESS_ATTACH:
+            {
+                boost::on_process_enter();
+                boost::on_thread_enter();
+                break;
+            }
+
+            case DLL_THREAD_ATTACH:
+            {
+                boost::on_thread_enter();
+                break;
+            }
+
+            case DLL_THREAD_DETACH:
+            {
+                boost::on_thread_exit();
+                break;
+            }
+
+            case DLL_PROCESS_DETACH:
+            {
+                boost::on_thread_exit();
+                boost::on_process_exit();
+                break;
+            }
+        }
+
+        return TRUE;
+    }
+
+namespace boost
+{
+    void tss_cleanup_implemented()
+    {
+        /*
+        This function's sole purpose is to cause a link error in cases where
+        automatic tss cleanup is not implemented by Boost.Threads as a
+        reminder that user code is responsible for calling the necessary
+        functions at the appropriate times (and for implementing an a
+        tss_cleanup_implemented() function to eliminate the linker's
+        missing symbol error).
+
+        If Boost.Threads later implements automatic tss cleanup in cases
+        where it currently doesn't (which is the plan), the duplicate
+        symbol error will warn the user that their custom solution is no
+        longer needed and can be removed.
+        */
+    }
+}
+
+#else //defined(BOOST_THREAD_WIN32) && defined(BOOST_THREAD_BUILD_DLL)
+
+#ifdef _MSC_VER
+// Prevent LNK4221 warning with link=static
+namespace boost { namespace link_static_warning_inhibit {
+    extern __declspec(dllexport) void foo() { }
+} }
+#endif
+
+#endif //defined(BOOST_THREAD_WIN32) && defined(BOOST_THREAD_BUILD_DLL)
diff --git a/externals/boost/libs/thread/src/win32/tss_pe.cpp b/externals/boost/libs/thread/src/win32/tss_pe.cpp
new file mode 100644
index 000000000..5a4c7649f
--- /dev/null
+++ b/externals/boost/libs/thread/src/win32/tss_pe.cpp
@@ -0,0 +1,346 @@
+// $Id$
+// (C) Copyright Aaron W. LaFramboise, Roland Schwarz, Michael Glassford 2004.
+// (C) Copyright 2007 Roland Schwarz
+// (C) Copyright 2007 Anthony Williams
+// (C) Copyright 2007 David Deakins
+// Use, modification and distribution are subject to 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 <boost/winapi/config.hpp>
+#include <boost/thread/detail/config.hpp>
+
+#if defined(BOOST_THREAD_WIN32) && defined(BOOST_THREAD_BUILD_LIB)
+
+#if (defined(__MINGW32__) && !defined(_WIN64)) || defined(__MINGW64__) || (__MINGW64_VERSION_MAJOR)
+
+#include <boost/thread/detail/tss_hooks.hpp>
+
+#include <windows.h>
+
+#include <cstdlib>
+
+namespace boost
+{
+    void tss_cleanup_implemented() {}
+}
+
+namespace {
+    void NTAPI on_tls_callback(void* , DWORD dwReason, PVOID )
+    {
+        switch (dwReason)
+        {
+        case DLL_THREAD_DETACH:
+        {
+            boost::on_thread_exit();
+            break;
+        }
+        }
+    }
+}
+
+#if defined(__MINGW64__) || (__MINGW64_VERSION_MAJOR) || (__MINGW32__) || (__MINGW32_MAJOR_VERSION >3) ||   \
+    ((__MINGW32_MAJOR_VERSION==3) && (__MINGW32_MINOR_VERSION>=18))
+extern "C"
+{
+    PIMAGE_TLS_CALLBACK __crt_xl_tls_callback__ __attribute__ ((section(".CRT$XLB"))) = on_tls_callback;
+}
+#else
+extern "C" {
+
+    void (* after_ctors )() __attribute__((section(".ctors")))     = boost::on_process_enter;
+    void (* before_dtors)() __attribute__((section(".dtors")))     = boost::on_thread_exit;
+    void (* after_dtors )() __attribute__((section(".dtors.zzz"))) = boost::on_process_exit;
+
+    ULONG __tls_index__ = 0;
+    char __tls_end__ __attribute__((section(".tls$zzz"))) = 0;
+    char __tls_start__ __attribute__((section(".tls"))) = 0;
+
+
+    PIMAGE_TLS_CALLBACK __crt_xl_start__ __attribute__ ((section(".CRT$XLA"))) = 0;
+    PIMAGE_TLS_CALLBACK __crt_xl_end__ __attribute__ ((section(".CRT$XLZ"))) = 0;
+}
+extern "C" const IMAGE_TLS_DIRECTORY32 _tls_used __attribute__ ((section(".rdata$T"))) =
+{
+        (DWORD) &__tls_start__,
+        (DWORD) &__tls_end__,
+        (DWORD) &__tls_index__,
+        (DWORD) (&__crt_xl_start__+1),
+        (DWORD) 0,
+        (DWORD) 0
+};
+#endif
+
+
+#elif  defined(_MSC_VER) && !defined(UNDER_CE)
+
+    #include <boost/thread/detail/tss_hooks.hpp>
+
+    #include <stdlib.h>
+
+    #include <windows.h>
+
+
+// _pRawDllMainOrig can be defined by including boost/thread/win32/mfc_thread_init.hpp
+// into your dll; it ensures that MFC-Dll-initialization will be done properly
+// The following code is adapted from the MFC-Dll-init code
+/*
+ * _pRawDllMainOrig MUST be an extern const variable, which will be aliased to
+ * _pDefaultRawDllMainOrig if no real user definition is present, thanks to the
+ * alternatename directive.
+ */
+
+// work at least with _MSC_VER 1500 (MSVC++ 9.0, VS 2008)
+#if (_MSC_VER >= 1500)
+
+extern "C" {
+extern BOOL (WINAPI * const _pRawDllMainOrig)(HINSTANCE, DWORD, LPVOID);
+extern BOOL (WINAPI * const _pDefaultRawDllMainOrig)(HINSTANCE, DWORD, LPVOID) = NULL;
+#if defined (_M_IX86)
+#pragma comment(linker, "/alternatename:__pRawDllMainOrig=__pDefaultRawDllMainOrig")
+#elif defined (_M_X64) || defined (_M_ARM) || defined (_M_ARM64)
+#pragma comment(linker, "/alternatename:_pRawDllMainOrig=_pDefaultRawDllMainOrig")
+#else  /* unknown Windows target (not x86, x64, ARM, ARM64) */
+#error Unsupported platform
+#endif  /* defined (_M_X64) || defined (_M_ARM) || defined (_M_ARM64) */
+}
+
+#endif
+
+
+
+
+    //Definitions required by implementation
+    #if (_MSC_VER < 1300) || ((_MSC_VER > 1900) && (_MSC_VER < 1910)) // 1300 == VC++ 7.0, 1900 == VC++ 14.0, 1910 == VC++ 2017
+        typedef void ( __cdecl *_PVFV_ )();
+        typedef void ( __cdecl *_PIFV_ )();
+        #define INIRETSUCCESS_V
+        #define INIRETSUCCESS_I
+        #define PVAPI_V void __cdecl
+        #define PVAPI_I void __cdecl
+    #elif (_MSC_VER >= 1910)
+        typedef void ( __cdecl *_PVFV_ )();
+        typedef int ( __cdecl *_PIFV_ )();
+        #define INIRETSUCCESS_V
+        #define INIRETSUCCESS_I 0
+        #define PVAPI_V void __cdecl
+        #define PVAPI_I int __cdecl
+    #else
+        typedef int ( __cdecl *_PVFV_ )();
+        typedef int ( __cdecl *_PIFV_ )();
+        #define INIRETSUCCESS_V 0
+        #define INIRETSUCCESS_I 0
+        #define PVAPI_V int __cdecl
+        #define PVAPI_I int __cdecl
+    #endif
+
+    typedef void (NTAPI* _TLSCB)(HINSTANCE, DWORD, PVOID);
+
+    //Symbols for connection to the runtime environment
+
+    extern "C"
+    {
+        extern DWORD _tls_used; //the tls directory (located in .rdata segment)
+        extern _TLSCB __xl_a[], __xl_z[];    //tls initializers */
+    }
+
+    namespace
+    {
+        //Forward declarations
+
+        static PVAPI_I on_tls_prepare();
+        static PVAPI_V on_process_init();
+        static PVAPI_V on_process_term();
+        static void NTAPI on_tls_callback(HINSTANCE, DWORD, PVOID);
+    }
+
+    namespace boost
+    {
+        //The .CRT$Xxx information is taken from Codeguru:
+        //http://www.codeguru.com/Cpp/misc/misc/threadsprocesses/article.php/c6945__2/
+
+        // Variables below are not referenced anywhere and
+        // to not be optimized away has to have external linkage
+
+#if (_MSC_VER >= 1400)
+#pragma section(".CRT$XIU",long,read)
+#pragma section(".CRT$XCU",long,read)
+#pragma section(".CRT$XTU",long,read)
+#pragma section(".CRT$XLC",long,read)
+        extern const __declspec(allocate(".CRT$XLC")) _TLSCB p_tls_callback = on_tls_callback;
+        extern const __declspec(allocate(".CRT$XIU")) _PIFV_ p_tls_prepare = on_tls_prepare;
+        extern const __declspec(allocate(".CRT$XCU")) _PVFV_ p_process_init = on_process_init;
+        extern const __declspec(allocate(".CRT$XTU")) _PVFV_ p_process_term = on_process_term;
+#else
+        #if (_MSC_VER >= 1300) // 1300 == VC++ 7.0
+        #   pragma data_seg(push, old_seg)
+        #endif
+            //Callback to run tls glue code first.
+            //I don't think it is necessary to run it
+            //at .CRT$XIB level, since we are only
+            //interested in thread detachement. But
+            //this could be changed easily if required.
+
+            #pragma data_seg(".CRT$XIU")
+            extern const _PIFV_ p_tls_prepare = on_tls_prepare;
+            #pragma data_seg()
+
+            //Callback after all global ctors.
+
+            #pragma data_seg(".CRT$XCU")
+            extern const _PVFV_ p_process_init = on_process_init;
+            #pragma data_seg()
+
+            //Callback for tls notifications.
+
+            #pragma data_seg(".CRT$XLB")
+            extern const _TLSCB p_thread_callback = on_tls_callback;
+            #pragma data_seg()
+            //Callback for termination.
+
+            #pragma data_seg(".CRT$XTU")
+            extern const _PVFV_ p_process_term = on_process_term;
+            #pragma data_seg()
+        #if (_MSC_VER >= 1300) // 1300 == VC++ 7.0
+        #   pragma data_seg(pop, old_seg)
+        #endif
+#endif
+    } // namespace boost
+
+    namespace
+    {
+#ifdef BOOST_MSVC
+#pragma warning(push)
+#pragma warning(disable:4189)
+#endif
+
+        PVAPI_I on_tls_prepare()
+        {
+            //The following line has an important side effect:
+            //if the TLS directory is not already there, it will
+            //be created by the linker. In other words, it forces a tls
+            //directory to be generated by the linker even when static tls
+            //(i.e. __declspec(thread)) is not used.
+            //The volatile should prevent the optimizer
+            //from removing the reference.
+
+            DWORD volatile dw = _tls_used;
+
+            #if (_MSC_VER < 1300) // 1300 == VC++ 7.0
+                _TLSCB* pfbegin = __xl_a;
+                _TLSCB* pfend = __xl_z;
+                _TLSCB* pfdst = pfbegin;
+                //pfdst = (_TLSCB*)_tls_used.AddressOfCallBacks;
+
+                //The following loop will merge the address pointers
+                //into a contiguous area, since the tlssup code seems
+                //to require this (at least on MSVC 6)
+
+                while (pfbegin < pfend)
+                {
+                    if (*pfbegin != 0)
+                    {
+                        *pfdst = *pfbegin;
+                        ++pfdst;
+                    }
+                    ++pfbegin;
+                }
+
+                *pfdst = 0;
+            #endif
+
+            return INIRETSUCCESS_I;
+        }
+#ifdef BOOST_MSVC
+#pragma warning(pop)
+#endif
+
+        PVAPI_V on_process_init()
+        {
+            //Schedule on_thread_exit() to be called for the main
+            //thread before destructors of global objects have been
+            //called.
+
+            //It will not be run when 'quick' exiting the
+            //library; however, this is the standard behaviour
+            //for destructors of global objects, so that
+            //shouldn't be a problem.
+
+            atexit(boost::on_thread_exit);
+
+            //Call Boost process entry callback here
+
+            boost::on_process_enter();
+
+            return INIRETSUCCESS_V;
+        }
+
+        PVAPI_V on_process_term()
+        {
+            boost::on_process_exit();
+            return INIRETSUCCESS_V;
+        }
+
+        void NTAPI on_tls_callback(HINSTANCE /*h*/, DWORD dwReason, PVOID /*pv*/)
+        {
+            switch (dwReason)
+            {
+            case DLL_THREAD_DETACH:
+                boost::on_thread_exit();
+                break;
+            }
+        }
+
+#if (_MSC_VER >= 1500)
+        BOOL WINAPI dll_callback(HINSTANCE hInstance, DWORD dwReason, LPVOID lpReserved)
+#else
+        BOOL WINAPI dll_callback(HINSTANCE, DWORD dwReason, LPVOID)
+#endif
+        {
+            switch (dwReason)
+            {
+            case DLL_THREAD_DETACH:
+                boost::on_thread_exit();
+                break;
+            case DLL_PROCESS_DETACH:
+                boost::on_process_exit();
+                break;
+            }
+
+#if (_MSC_VER >= 1500)
+            if( _pRawDllMainOrig )
+            {
+                return _pRawDllMainOrig(hInstance, dwReason, lpReserved);
+            }
+#endif
+            return true;
+        }
+    } //namespace
+
+extern "C"
+{
+    extern BOOL (WINAPI * const _pRawDllMain)(HINSTANCE, DWORD, LPVOID)=&dll_callback;
+}
+namespace boost
+{
+    void tss_cleanup_implemented()
+    {
+        /*
+        This function's sole purpose is to cause a link error in cases where
+        automatic tss cleanup is not implemented by Boost.Threads as a
+        reminder that user code is responsible for calling the necessary
+        functions at the appropriate times (and for implementing an a
+        tss_cleanup_implemented() function to eliminate the linker's
+        missing symbol error).
+
+        If Boost.Threads later implements automatic tss cleanup in cases
+        where it currently doesn't (which is the plan), the duplicate
+        symbol error will warn the user that their custom solution is no
+        longer needed and can be removed.
+        */
+    }
+}
+
+#endif //defined(_MSC_VER) && !defined(UNDER_CE)
+
+#endif //defined(BOOST_THREAD_WIN32) && defined(BOOST_THREAD_BUILD_LIB)
author	Dawid Potocki <dawid@dawidpotocki.com>	2024-03-05 15:40:56 +1300
committer	Dawid Potocki <dawid@dawidpotocki.com>	2024-03-05 20:35:36 +1300
commit	240e5f000978938357c3ef14154c8009bbc773f0 (patch)
tree	7a727fa90e352f971a964779a859f27f6a66d00d /externals/boost/libs/thread
parent	0ff3440232d6bc9226e37c41c05c5aead03f37fd (diff)