Update Boost in 3rdParty to version 1.56.0.

This updates Boost in our 3rdParty directory to version 1.56.0. Updated our update.sh script to stop on error. Changed error reporting in SwiftTools/CrashReporter.cpp to SWIFT_LOG due to missing include of <iostream> with newer Boost. Change-Id: I4b35c77de951333979a524097f35f5f83d325edc
author: Tobias Markmann <tm@ayena.de> 2014-10-19 20:22:58 (GMT)
committer: Tobias Markmann <tm@ayena.de> 2014-10-20 13:49:33 (GMT)
commit: 6b22dfcf59474dd016a0355a3102a1dd3692d92c (patch)
tree: 2b1fd33be433a91e81fee84fdc2bf1b52575d934 /3rdParty/Boost/src/boost/thread/win32/once.hpp
parent: 38b0cb785fea8eae5e48fae56440695fdfd10ee1 (diff)
download: swift-6b22dfcf59474dd016a0355a3102a1dd3692d92c.zip
swift-6b22dfcf59474dd016a0355a3102a1dd3692d92c.tar.bz2
1 files changed, 908 insertions, 48 deletions
diff --git a/3rdParty/Boost/src/boost/thread/win32/once.hpp b/3rdParty/Boost/src/boost/thread/win32/once.hpp
index 3066b50..0ed56a5 100644
--- a/3rdParty/Boost/src/boost/thread/win32/once.hpp
+++ b/3rdParty/Boost/src/boost/thread/win32/once.hpp
@@ -5,7 +5,7 @@
 //
 //  (C) Copyright 2005-7 Anthony Williams
 //  (C) Copyright 2005 John Maddock
-//  (C) Copyright 2011-2012 Vicente J. Botet Escriba
+//  (C) Copyright 2011-2013 Vicente J. Botet Escriba
 //
 //  Distributed under the Boost Software License, Version 1.0. (See
 //  accompanying file LICENSE_1_0.txt or copy at
@@ -18,6 +18,11 @@
 #include <boost/detail/interlocked.hpp>
 #include <boost/thread/win32/thread_primitives.hpp>
 #include <boost/thread/win32/interlocked_read.hpp>
+#include <boost/core/no_exceptions_support.hpp>
+#include <boost/thread/detail/move.hpp>
+#include <boost/thread/detail/invoke.hpp>
+
+#include <boost/bind.hpp>
 
 #include <boost/config/abi_prefix.hpp>
 
@@ -31,6 +36,16 @@ namespace std
 
 namespace boost
 {
+  struct once_flag;
+  namespace detail
+  {
+  struct once_context;
+
+  inline bool enter_once_region(once_flag& flag, once_context& ctx) BOOST_NOEXCEPT;
+  inline void commit_once_region(once_flag& flag, once_context& ctx) BOOST_NOEXCEPT;
+  inline void rollback_once_region(once_flag& flag, once_context& ctx) BOOST_NOEXCEPT;
+  }
+
 #ifdef BOOST_THREAD_PROVIDES_ONCE_CXX11
 
   struct once_flag
@@ -39,12 +54,12 @@ namespace boost
       BOOST_CONSTEXPR once_flag() BOOST_NOEXCEPT
         : status(0), count(0)
       {}
-  private:
       long status;
       long count;
-      template<typename Function>
-      friend
-      void call_once(once_flag& flag,Function f);
+  private:
+      friend inline bool enter_once_region(once_flag& flag, detail::once_context& ctx) BOOST_NOEXCEPT;
+      friend inline void commit_once_region(once_flag& flag, detail::once_context& ctx) BOOST_NOEXCEPT;
+      friend inline void rollback_once_region(once_flag& flag, detail::once_context& ctx) BOOST_NOEXCEPT;
   };
 
 #define BOOST_ONCE_INIT once_flag()
@@ -59,6 +74,17 @@ namespace boost
 #define BOOST_ONCE_INIT {0,0}
 #endif  // BOOST_THREAD_PROVIDES_ONCE_CXX11
 
+#if defined BOOST_THREAD_PROVIDES_INVOKE
+#define BOOST_THREAD_INVOKE_RET_VOID detail::invoke
+#define BOOST_THREAD_INVOKE_RET_VOID_CALL
+#elif defined BOOST_THREAD_PROVIDES_INVOKE_RET
+#define BOOST_THREAD_INVOKE_RET_VOID detail::invoke<void>
+#define BOOST_THREAD_INVOKE_RET_VOID_CALL
+#else
+#define BOOST_THREAD_INVOKE_RET_VOID boost::bind
+#define BOOST_THREAD_INVOKE_RET_VOID_CALL ()
+#endif
+
     namespace detail
     {
 #ifdef BOOST_NO_ANSI_APIS
@@ -135,94 +161,928 @@ namespace boost
                 ::boost::detail::win32::event_initially_reset,
                 mutex_name);
         }
-    }
 
+        struct once_context {
+          long const function_complete_flag_value;
+          long const running_value;
+          bool counted;
+          detail::win32::handle_manager event_handle;
+          detail::once_char_type mutex_name[once_mutex_name_length];
+          once_context() :
+            function_complete_flag_value(0xc15730e2),
+            running_value(0x7f0725e3),
+            counted(false)
+          {
+            mutex_name[0]=0;
+          }
+        };
+        enum once_action {try_, break_, continue_};
 
+        inline bool enter_once_region(once_flag& flag, once_context& ctx) BOOST_NOEXCEPT
+        {
+          long status=BOOST_INTERLOCKED_COMPARE_EXCHANGE(&flag.status,ctx.running_value,0);
+          if(!status)
+          {
+            if(!ctx.event_handle)
+            {
+                ctx.event_handle=detail::open_once_event(ctx.mutex_name,&flag);
+            }
+            if(ctx.event_handle)
+            {
+                ::boost::detail::win32::ResetEvent(ctx.event_handle);
+            }
+            return true;
+          }
+          return false;
+        }
+        inline void commit_once_region(once_flag& flag, once_context& ctx) BOOST_NOEXCEPT
+        {
+          if(!ctx.counted)
+          {
+              BOOST_INTERLOCKED_INCREMENT(&flag.count);
+              ctx.counted=true;
+          }
+          BOOST_INTERLOCKED_EXCHANGE(&flag.status,ctx.function_complete_flag_value);
+          if(!ctx.event_handle &&
+             (::boost::detail::interlocked_read_acquire(&flag.count)>1))
+          {
+              ctx.event_handle=detail::create_once_event(ctx.mutex_name,&flag);
+          }
+          if(ctx.event_handle)
+          {
+              ::boost::detail::win32::SetEvent(ctx.event_handle);
+          }
+        }
+        inline void rollback_once_region(once_flag& flag, once_context& ctx) BOOST_NOEXCEPT
+        {
+          BOOST_INTERLOCKED_EXCHANGE(&flag.status,0);
+          if(!ctx.event_handle)
+          {
+              ctx.event_handle=detail::open_once_event(ctx.mutex_name,&flag);
+          }
+          if(ctx.event_handle)
+          {
+              ::boost::detail::win32::SetEvent(ctx.event_handle);
+          }
+        }
+    }
+
+#if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) && !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
+//#if defined(BOOST_THREAD_RVALUE_REFERENCES_DONT_MATCH_FUNTION_PTR)
+    inline void call_once(once_flag& flag, void (*f)())
+    {
+        // Try for a quick win: if the procedure has already been called
+        // just skip through:
+        detail::once_context ctx;
+        while(::boost::detail::interlocked_read_acquire(&flag.status)
+              !=ctx.function_complete_flag_value)
+        {
+            if(detail::enter_once_region(flag, ctx))
+            {
+                BOOST_TRY
+                {
+                  f();
+                }
+                BOOST_CATCH(...)
+                {
+                    detail::rollback_once_region(flag, ctx);
+                    BOOST_RETHROW
+                }
+                BOOST_CATCH_END
+                detail::commit_once_region(flag, ctx);
+                break;
+            }
+            if(!ctx.counted)
+            {
+                BOOST_INTERLOCKED_INCREMENT(&flag.count);
+                ctx.counted=true;
+                long status=::boost::detail::interlocked_read_acquire(&flag.status);
+                if(status==ctx.function_complete_flag_value)
+                {
+                    break;
+                }
+                if(!ctx.event_handle)
+                {
+                    ctx.event_handle=detail::create_once_event(ctx.mutex_name,&flag);
+                    continue;
+                }
+            }
+            BOOST_VERIFY(!::boost::detail::win32::WaitForSingleObject(
+                             ctx.event_handle,::boost::detail::win32::infinite));
+        }
+    }
+//#endif
+    template<typename Function>
+    inline void call_once(once_flag& flag, BOOST_THREAD_RV_REF(Function) f)
+    {
+        // Try for a quick win: if the procedure has already been called
+        // just skip through:
+        detail::once_context ctx;
+        while(::boost::detail::interlocked_read_acquire(&flag.status)
+              !=ctx.function_complete_flag_value)
+        {
+            if(detail::enter_once_region(flag, ctx))
+            {
+                BOOST_TRY
+                {
+                    f();
+                }
+                BOOST_CATCH(...)
+                {
+                    detail::rollback_once_region(flag, ctx);
+                    BOOST_RETHROW
+                }
+                BOOST_CATCH_END
+                detail::commit_once_region(flag, ctx);
+                break;
+            }
+            if(!ctx.counted)
+            {
+                BOOST_INTERLOCKED_INCREMENT(&flag.count);
+                ctx.counted=true;
+                long status=::boost::detail::interlocked_read_acquire(&flag.status);
+                if(status==ctx.function_complete_flag_value)
+                {
+                    break;
+                }
+                if(!ctx.event_handle)
+                {
+                    ctx.event_handle=detail::create_once_event(ctx.mutex_name,&flag);
+                    continue;
+                }
+            }
+            BOOST_VERIFY(!::boost::detail::win32::WaitForSingleObject(
+                             ctx.event_handle,::boost::detail::win32::infinite));
+        }
+    }
+    template<typename Function, class A, class ...ArgTypes>
+    inline void call_once(once_flag& flag, BOOST_THREAD_RV_REF(Function) f, BOOST_THREAD_RV_REF(A) a, BOOST_THREAD_RV_REF(ArgTypes)... args)
+    {
+        // Try for a quick win: if the procedure has already been called
+        // just skip through:
+        detail::once_context ctx;
+        while(::boost::detail::interlocked_read_acquire(&flag.status)
+              !=ctx.function_complete_flag_value)
+        {
+            if(detail::enter_once_region(flag, ctx))
+            {
+                BOOST_TRY
+                {
+                  BOOST_THREAD_INVOKE_RET_VOID(
+                        thread_detail::decay_copy(boost::forward<Function>(f)),
+                        thread_detail::decay_copy(boost::forward<A>(a)),
+                        thread_detail::decay_copy(boost::forward<ArgTypes>(args))...
+                  ) BOOST_THREAD_INVOKE_RET_VOID_CALL;
+                }
+                BOOST_CATCH(...)
+                {
+                    detail::rollback_once_region(flag, ctx);
+                    BOOST_RETHROW
+                }
+                BOOST_CATCH_END
+                detail::commit_once_region(flag, ctx);
+                break;
+            }
+            if(!ctx.counted)
+            {
+                BOOST_INTERLOCKED_INCREMENT(&flag.count);
+                ctx.counted=true;
+                long status=::boost::detail::interlocked_read_acquire(&flag.status);
+                if(status==ctx.function_complete_flag_value)
+                {
+                    break;
+                }
+                if(!ctx.event_handle)
+                {
+                    ctx.event_handle=detail::create_once_event(ctx.mutex_name,&flag);
+                    continue;
+                }
+            }
+            BOOST_VERIFY(!::boost::detail::win32::WaitForSingleObject(
+                             ctx.event_handle,::boost::detail::win32::infinite));
+        }
+    }
+#else
+#if ! defined(BOOST_MSVC) && ! defined(BOOST_INTEL)
     template<typename Function>
     void call_once(once_flag& flag,Function f)
     {
         // Try for a quick win: if the procedure has already been called
         // just skip through:
-        long const function_complete_flag_value=0xc15730e2;
-        long const running_value=0x7f0725e3;
-        long status;
-        bool counted=false;
-        detail::win32::handle_manager event_handle;
-        detail::once_char_type mutex_name[detail::once_mutex_name_length];
-        mutex_name[0]=0;
+        detail::once_context ctx;
+        while(::boost::detail::interlocked_read_acquire(&flag.status)
+              !=ctx.function_complete_flag_value)
+        {
+            if(detail::enter_once_region(flag, ctx))
+            {
+                BOOST_TRY
+                {
+                    f();
+                }
+                BOOST_CATCH(...)
+                {
+                    detail::rollback_once_region(flag, ctx);
+                    BOOST_RETHROW
+                }
+                BOOST_CATCH_END
+                detail::commit_once_region(flag, ctx);
+                break;
+            }
+            if(!ctx.counted)
+            {
+                BOOST_INTERLOCKED_INCREMENT(&flag.count);
+                ctx.counted=true;
+                long status=::boost::detail::interlocked_read_acquire(&flag.status);
+                if(status==ctx.function_complete_flag_value)
+                {
+                    break;
+                }
+                if(!ctx.event_handle)
+                {
+                    ctx.event_handle=detail::create_once_event(ctx.mutex_name,&flag);
+                    continue;
+                }
+            }
+            BOOST_VERIFY(!::boost::detail::win32::WaitForSingleObject(
+                             ctx.event_handle,::boost::detail::win32::infinite));
+        }
+    }
+    template<typename Function, typename T1>
+    void call_once(once_flag& flag,Function f, T1 p1)
+    {
+        // Try for a quick win: if the procedure has already been called
+        // just skip through:
+        detail::once_context ctx;
+        while(::boost::detail::interlocked_read_acquire(&flag.status)
+              !=ctx.function_complete_flag_value)
+        {
+            if(detail::enter_once_region(flag, ctx))
+            {
+                BOOST_TRY
+                {
+                  BOOST_THREAD_INVOKE_RET_VOID(f,p1) BOOST_THREAD_INVOKE_RET_VOID_CALL;
+                }
+                BOOST_CATCH(...)
+                {
+                    detail::rollback_once_region(flag, ctx);
+                    BOOST_RETHROW
+                }
+                BOOST_CATCH_END
+                detail::commit_once_region(flag, ctx);
+                break;
+            }
+            if(!ctx.counted)
+            {
+                BOOST_INTERLOCKED_INCREMENT(&flag.count);
+                ctx.counted=true;
+                long status=::boost::detail::interlocked_read_acquire(&flag.status);
+                if(status==ctx.function_complete_flag_value)
+                {
+                    break;
+                }
+                if(!ctx.event_handle)
+                {
+                    ctx.event_handle=detail::create_once_event(ctx.mutex_name,&flag);
+                    continue;
+                }
+            }
+            BOOST_VERIFY(!::boost::detail::win32::WaitForSingleObject(
+                             ctx.event_handle,::boost::detail::win32::infinite));
+        }
+    }
+    template<typename Function, typename T1, typename T2>
+    void call_once(once_flag& flag,Function f, T1 p1, T2 p2)
+    {
+        // Try for a quick win: if the procedure has already been called
+        // just skip through:
+        detail::once_context ctx;
+        while(::boost::detail::interlocked_read_acquire(&flag.status)
+              !=ctx.function_complete_flag_value)
+        {
+            if(detail::enter_once_region(flag, ctx))
+            {
+                BOOST_TRY
+                {
+                  BOOST_THREAD_INVOKE_RET_VOID(f,p1,p2) BOOST_THREAD_INVOKE_RET_VOID_CALL;
+                }
+                BOOST_CATCH(...)
+                {
+                    detail::rollback_once_region(flag, ctx);
+                    BOOST_RETHROW
+                }
+                BOOST_CATCH_END
+                detail::commit_once_region(flag, ctx);
+                break;
+            }
+            if(!ctx.counted)
+            {
+                BOOST_INTERLOCKED_INCREMENT(&flag.count);
+                ctx.counted=true;
+                long status=::boost::detail::interlocked_read_acquire(&flag.status);
+                if(status==ctx.function_complete_flag_value)
+                {
+                    break;
+                }
+                if(!ctx.event_handle)
+                {
+                    ctx.event_handle=detail::create_once_event(ctx.mutex_name,&flag);
+                    continue;
+                }
+            }
+            BOOST_VERIFY(!::boost::detail::win32::WaitForSingleObject(
+                             ctx.event_handle,::boost::detail::win32::infinite));
+        }
+    }
+    template<typename Function, typename T1, typename T2, typename T3>
+    void call_once(once_flag& flag,Function f, T1 p1, T2 p2, T3 p3)
+    {
+        // Try for a quick win: if the procedure has already been called
+        // just skip through:
+        detail::once_context ctx;
+        while(::boost::detail::interlocked_read_acquire(&flag.status)
+              !=ctx.function_complete_flag_value)
+        {
+            if(detail::enter_once_region(flag, ctx))
+            {
+                BOOST_TRY
+                {
+                  BOOST_THREAD_INVOKE_RET_VOID(f,p1,p2,p3) BOOST_THREAD_INVOKE_RET_VOID_CALL;
+                }
+                BOOST_CATCH(...)
+                {
+                    detail::rollback_once_region(flag, ctx);
+                    BOOST_RETHROW
+                }
+                BOOST_CATCH_END
+                detail::commit_once_region(flag, ctx);
+                break;
+            }
+            if(!ctx.counted)
+            {
+                BOOST_INTERLOCKED_INCREMENT(&flag.count);
+                ctx.counted=true;
+                long status=::boost::detail::interlocked_read_acquire(&flag.status);
+                if(status==ctx.function_complete_flag_value)
+                {
+                    break;
+                }
+                if(!ctx.event_handle)
+                {
+                    ctx.event_handle=detail::create_once_event(ctx.mutex_name,&flag);
+                    continue;
+                }
+            }
+            BOOST_VERIFY(!::boost::detail::win32::WaitForSingleObject(
+                             ctx.event_handle,::boost::detail::win32::infinite));
+        }
+    }
+#elif defined BOOST_NO_CXX11_RVALUE_REFERENCES
 
-        while((status=::boost::detail::interlocked_read_acquire(&flag.status))
-              !=function_complete_flag_value)
+    template<typename Function>
+    void call_once(once_flag& flag,Function const&f)
+    {
+        // Try for a quick win: if the procedure has already been called
+        // just skip through:
+        detail::once_context ctx;
+        while(::boost::detail::interlocked_read_acquire(&flag.status)
+              !=ctx.function_complete_flag_value)
         {
-            status=BOOST_INTERLOCKED_COMPARE_EXCHANGE(&flag.status,running_value,0);
-            if(!status)
+            if(detail::enter_once_region(flag, ctx))
+            {
+                BOOST_TRY
+                {
+                    f();
+                }
+                BOOST_CATCH(...)
+                {
+                    detail::rollback_once_region(flag, ctx);
+                    BOOST_RETHROW
+                }
+                BOOST_CATCH_END
+                detail::commit_once_region(flag, ctx);
+                break;
+            }
+            if(!ctx.counted)
             {
-#ifndef BOOST_NO_EXCEPTIONS
-                try // BOOST_NO_EXCEPTIONS protected
+                BOOST_INTERLOCKED_INCREMENT(&flag.count);
+                ctx.counted=true;
+                long status=::boost::detail::interlocked_read_acquire(&flag.status);
+                if(status==ctx.function_complete_flag_value)
+                {
+                    break;
+                }
+                if(!ctx.event_handle)
+                {
+                    ctx.event_handle=detail::create_once_event(ctx.mutex_name,&flag);
+                    continue;
+                }
+            }
+            BOOST_VERIFY(!::boost::detail::win32::WaitForSingleObject(
+                             ctx.event_handle,::boost::detail::win32::infinite));
+        }
+    }
+    template<typename Function, typename T1>
+    void call_once(once_flag& flag,Function const&f, T1 const&p1)
+    {
+        // Try for a quick win: if the procedure has already been called
+        // just skip through:
+        detail::once_context ctx;
+        while(::boost::detail::interlocked_read_acquire(&flag.status)
+              !=ctx.function_complete_flag_value)
+        {
+            if(detail::enter_once_region(flag, ctx))
+            {
+                BOOST_TRY
+                {
+                  BOOST_THREAD_INVOKE_RET_VOID(f,p1) BOOST_THREAD_INVOKE_RET_VOID_CALL;
+                }
+                BOOST_CATCH(...)
+                {
+                    detail::rollback_once_region(flag, ctx);
+                    BOOST_RETHROW
+                }
+                BOOST_CATCH_END
+                detail::commit_once_region(flag, ctx);
+                break;
+            }
+            if(!ctx.counted)
+            {
+                BOOST_INTERLOCKED_INCREMENT(&flag.count);
+                ctx.counted=true;
+                long status=::boost::detail::interlocked_read_acquire(&flag.status);
+                if(status==ctx.function_complete_flag_value)
+                {
+                    break;
+                }
+                if(!ctx.event_handle)
+                {
+                    ctx.event_handle=detail::create_once_event(ctx.mutex_name,&flag);
+                    continue;
+                }
+            }
+            BOOST_VERIFY(!::boost::detail::win32::WaitForSingleObject(
+                             ctx.event_handle,::boost::detail::win32::infinite));
+        }
+    }
+    template<typename Function, typename T1, typename T2>
+    void call_once(once_flag& flag,Function const&f, T1 const&p1, T2 const&p2)
+    {
+        // Try for a quick win: if the procedure has already been called
+        // just skip through:
+        detail::once_context ctx;
+        while(::boost::detail::interlocked_read_acquire(&flag.status)
+              !=ctx.function_complete_flag_value)
+        {
+            if(detail::enter_once_region(flag, ctx))
+            {
+                BOOST_TRY
+                {
+                  BOOST_THREAD_INVOKE_RET_VOID(f,p1,p2) BOOST_THREAD_INVOKE_RET_VOID_CALL;
+                }
+                BOOST_CATCH(...)
+                {
+                    detail::rollback_once_region(flag, ctx);
+                    BOOST_RETHROW
+                }
+                BOOST_CATCH_END
+                detail::commit_once_region(flag, ctx);
+                break;
+            }
+            if(!ctx.counted)
+            {
+                BOOST_INTERLOCKED_INCREMENT(&flag.count);
+                ctx.counted=true;
+                long status=::boost::detail::interlocked_read_acquire(&flag.status);
+                if(status==ctx.function_complete_flag_value)
+                {
+                    break;
+                }
+                if(!ctx.event_handle)
+                {
+                    ctx.event_handle=detail::create_once_event(ctx.mutex_name,&flag);
+                    continue;
+                }
+            }
+            BOOST_VERIFY(!::boost::detail::win32::WaitForSingleObject(
+                             ctx.event_handle,::boost::detail::win32::infinite));
+        }
+    }
+    template<typename Function, typename T1, typename T2, typename T3>
+    void call_once(once_flag& flag,Function const&f, T1 const&p1, T2 const&p2, T3 const&p3)
+    {
+        // Try for a quick win: if the procedure has already been called
+        // just skip through:
+        detail::once_context ctx;
+        while(::boost::detail::interlocked_read_acquire(&flag.status)
+              !=ctx.function_complete_flag_value)
+        {
+            if(detail::enter_once_region(flag, ctx))
+            {
+                BOOST_TRY
+                {
+                  BOOST_THREAD_INVOKE_RET_VOID(f,p1,p2,p3) BOOST_THREAD_INVOKE_RET_VOID_CALL;
+                }
+                BOOST_CATCH(...)
+                {
+                    detail::rollback_once_region(flag, ctx);
+                    BOOST_RETHROW
+                }
+                BOOST_CATCH_END
+                detail::commit_once_region(flag, ctx);
+                break;
+            }
+            if(!ctx.counted)
+            {
+                BOOST_INTERLOCKED_INCREMENT(&flag.count);
+                ctx.counted=true;
+                long status=::boost::detail::interlocked_read_acquire(&flag.status);
+                if(status==ctx.function_complete_flag_value)
+                {
+                    break;
+                }
+                if(!ctx.event_handle)
+                {
+                    ctx.event_handle=detail::create_once_event(ctx.mutex_name,&flag);
+                    continue;
+                }
+            }
+            BOOST_VERIFY(!::boost::detail::win32::WaitForSingleObject(
+                             ctx.event_handle,::boost::detail::win32::infinite));
+        }
+    }
 #endif
+#if 1
+#if defined(BOOST_THREAD_RVALUE_REFERENCES_DONT_MATCH_FUNTION_PTR)
+        inline void call_once(once_flag& flag, void (*f)())
+        {
+            // Try for a quick win: if the procedure has already been called
+            // just skip through:
+            detail::once_context ctx;
+            while(::boost::detail::interlocked_read_acquire(&flag.status)
+                  !=ctx.function_complete_flag_value)
+            {
+                if(detail::enter_once_region(flag, ctx))
                 {
-                    if(!event_handle)
+                    BOOST_TRY
                     {
-                        event_handle=detail::open_once_event(mutex_name,&flag);
+                      f();
                     }
-                    if(event_handle)
+                    BOOST_CATCH(...)
                     {
-                        ::boost::detail::win32::ResetEvent(event_handle);
+                        detail::rollback_once_region(flag, ctx);
+                        BOOST_RETHROW
                     }
-                    f();
-                    if(!counted)
+                    BOOST_CATCH_END
+                    detail::commit_once_region(flag, ctx);
+                    break;
+                }
+                if(!ctx.counted)
+                {
+                    BOOST_INTERLOCKED_INCREMENT(&flag.count);
+                    ctx.counted=true;
+                    long status=::boost::detail::interlocked_read_acquire(&flag.status);
+                    if(status==ctx.function_complete_flag_value)
+                    {
+                        break;
+                    }
+                    if(!ctx.event_handle)
+                    {
+                        ctx.event_handle=detail::create_once_event(ctx.mutex_name,&flag);
+                        continue;
+                    }
+                }
+                BOOST_VERIFY(!::boost::detail::win32::WaitForSingleObject(
+                                 ctx.event_handle,::boost::detail::win32::infinite));
+            }
+        }
+        template<typename T1>
+        void call_once(once_flag& flag,void (*f)(BOOST_THREAD_RV_REF(T1)), BOOST_THREAD_RV_REF(T1) p1)
+        {
+            // Try for a quick win: if the procedure has already been called
+            // just skip through:
+            detail::once_context ctx;
+            while(::boost::detail::interlocked_read_acquire(&flag.status)
+                  !=ctx.function_complete_flag_value)
+            {
+                if(detail::enter_once_region(flag, ctx))
+                {
+                    BOOST_TRY
+                    {
+                       f(
+                           thread_detail::decay_copy(boost::forward<T1>(p1))
+                       );
+                    }
+                    BOOST_CATCH(...)
+                    {
+                        detail::rollback_once_region(flag, ctx);
+                        BOOST_RETHROW
+                    }
+                    BOOST_CATCH_END
+                    detail::commit_once_region(flag, ctx);
+                    break;
+                }
+                if(!ctx.counted)
+                {
+                    BOOST_INTERLOCKED_INCREMENT(&flag.count);
+                    ctx.counted=true;
+                    long status=::boost::detail::interlocked_read_acquire(&flag.status);
+                    if(status==ctx.function_complete_flag_value)
+                    {
+                        break;
+                    }
+                    if(!ctx.event_handle)
+                    {
+                        ctx.event_handle=detail::create_once_event(ctx.mutex_name,&flag);
+                        continue;
+                    }
+                }
+                BOOST_VERIFY(!::boost::detail::win32::WaitForSingleObject(
+                                 ctx.event_handle,::boost::detail::win32::infinite));
+            }
+        }
+        template<typename Function, typename T1, typename T2>
+        void call_once(once_flag& flag,void (*f)(BOOST_THREAD_RV_REF(T1),BOOST_THREAD_RV_REF(T2)), BOOST_THREAD_RV_REF(T1) p1, BOOST_THREAD_RV_REF(T2) p2)
+        {
+            // Try for a quick win: if the procedure has already been called
+            // just skip through:
+            detail::once_context ctx;
+            while(::boost::detail::interlocked_read_acquire(&flag.status)
+                  !=ctx.function_complete_flag_value)
+            {
+                if(detail::enter_once_region(flag, ctx))
+                {
+                    BOOST_TRY
                     {
-                        BOOST_INTERLOCKED_INCREMENT(&flag.count);
-                        counted=true;
+                      f(
+                          thread_detail::decay_copy(boost::forward<T1>(p1)),
+                          thread_detail::decay_copy(boost::forward<T2>(p2))
+                      );
                     }
-                    BOOST_INTERLOCKED_EXCHANGE(&flag.status,function_complete_flag_value);
-                    if(!event_handle &&
-                       (::boost::detail::interlocked_read_acquire(&flag.count)>1))
+                    BOOST_CATCH(...)
                     {
-                        event_handle=detail::create_once_event(mutex_name,&flag);
+                        detail::rollback_once_region(flag, ctx);
+                        BOOST_RETHROW
                     }
-                    if(event_handle)
+                    BOOST_CATCH_END
+                    detail::commit_once_region(flag, ctx);
+                    break;
+                }
+                if(!ctx.counted)
+                {
+                    BOOST_INTERLOCKED_INCREMENT(&flag.count);
+                    ctx.counted=true;
+                    long status=::boost::detail::interlocked_read_acquire(&flag.status);
+                    if(status==ctx.function_complete_flag_value)
                     {
-                        ::boost::detail::win32::SetEvent(event_handle);
+                        break;
                     }
+                    if(!ctx.event_handle)
+                    {
+                        ctx.event_handle=detail::create_once_event(ctx.mutex_name,&flag);
+                        continue;
+                    }
+                }
+                BOOST_VERIFY(!::boost::detail::win32::WaitForSingleObject(
+                                 ctx.event_handle,::boost::detail::win32::infinite));
+            }
+        }
+        template<typename Function, typename T1, typename T2, typename T3>
+        void call_once(once_flag& flag,void (*f)(BOOST_THREAD_RV_REF(T1),BOOST_THREAD_RV_REF(T2)), BOOST_THREAD_RV_REF(T1) p1, BOOST_THREAD_RV_REF(T2) p2, BOOST_THREAD_RV_REF(T3) p3)
+        {
+            // Try for a quick win: if the procedure has already been called
+            // just skip through:
+            detail::once_context ctx;
+            while(::boost::detail::interlocked_read_acquire(&flag.status)
+                  !=ctx.function_complete_flag_value)
+            {
+                if(detail::enter_once_region(flag, ctx))
+                {
+                    BOOST_TRY
+                    {
+                      f(
+                          thread_detail::decay_copy(boost::forward<T1>(p1)),
+                          thread_detail::decay_copy(boost::forward<T2>(p2)),
+                          thread_detail::decay_copy(boost::forward<T3>(p3))
+                      );
+                    }
+                    BOOST_CATCH(...)
+                    {
+                        detail::rollback_once_region(flag, ctx);
+                        BOOST_RETHROW
+                    }
+                    BOOST_CATCH_END
+                    detail::commit_once_region(flag, ctx);
                     break;
                 }
-#ifndef BOOST_NO_EXCEPTIONS
-                catch(...) // BOOST_NO_EXCEPTIONS protected
+                if(!ctx.counted)
                 {
-                    BOOST_INTERLOCKED_EXCHANGE(&flag.status,0);
-                    if(!event_handle)
+                    BOOST_INTERLOCKED_INCREMENT(&flag.count);
+                    ctx.counted=true;
+                    long status=::boost::detail::interlocked_read_acquire(&flag.status);
+                    if(status==ctx.function_complete_flag_value)
                     {
-                        event_handle=detail::open_once_event(mutex_name,&flag);
+                        break;
                     }
-                    if(event_handle)
+                    if(!ctx.event_handle)
                     {
-                        ::boost::detail::win32::SetEvent(event_handle);
+                        ctx.event_handle=detail::create_once_event(ctx.mutex_name,&flag);
+                        continue;
                     }
-                    throw; // BOOST_NO_EXCEPTIONS protected
                 }
+                BOOST_VERIFY(!::boost::detail::win32::WaitForSingleObject(
+                                 ctx.event_handle,::boost::detail::win32::infinite));
+            }
+        }
 #endif
+    template<typename Function>
+    void call_once(once_flag& flag,BOOST_THREAD_RV_REF(Function) f)
+    {
+        // Try for a quick win: if the procedure has already been called
+        // just skip through:
+        detail::once_context ctx;
+        while(::boost::detail::interlocked_read_acquire(&flag.status)
+              !=ctx.function_complete_flag_value)
+        {
+            if(detail::enter_once_region(flag, ctx))
+            {
+                BOOST_TRY
+                {
+                    f();
+                }
+                BOOST_CATCH(...)
+                {
+                    detail::rollback_once_region(flag, ctx);
+                    BOOST_RETHROW
+                }
+                BOOST_CATCH_END
+                detail::commit_once_region(flag, ctx);
+                break;
+            }
+            if(!ctx.counted)
+            {
+                BOOST_INTERLOCKED_INCREMENT(&flag.count);
+                ctx.counted=true;
+                long status=::boost::detail::interlocked_read_acquire(&flag.status);
+                if(status==ctx.function_complete_flag_value)
+                {
+                    break;
+                }
+                if(!ctx.event_handle)
+                {
+                    ctx.event_handle=detail::create_once_event(ctx.mutex_name,&flag);
+                    continue;
+                }
             }
+            BOOST_VERIFY(!::boost::detail::win32::WaitForSingleObject(
+                             ctx.event_handle,::boost::detail::win32::infinite));
+        }
+    }
 
-            if(!counted)
+    template<typename Function, typename T1>
+    void call_once(once_flag& flag,BOOST_THREAD_RV_REF(Function) f, BOOST_THREAD_RV_REF(T1) p1)
+    {
+        // Try for a quick win: if the procedure has already been called
+        // just skip through:
+        detail::once_context ctx;
+        while(::boost::detail::interlocked_read_acquire(&flag.status)
+              !=ctx.function_complete_flag_value)
+        {
+            if(detail::enter_once_region(flag, ctx))
+            {
+                BOOST_TRY
+                {
+                  BOOST_THREAD_INVOKE_RET_VOID(
+                      thread_detail::decay_copy(boost::forward<Function>(f)),
+                      thread_detail::decay_copy(boost::forward<T1>(p1))
+                  ) BOOST_THREAD_INVOKE_RET_VOID_CALL;
+                }
+                BOOST_CATCH(...)
+                {
+                    detail::rollback_once_region(flag, ctx);
+                    BOOST_RETHROW
+                }
+                BOOST_CATCH_END
+                detail::commit_once_region(flag, ctx);
+                break;
+            }
+            if(!ctx.counted)
             {
                 BOOST_INTERLOCKED_INCREMENT(&flag.count);
-                counted=true;
-                status=::boost::detail::interlocked_read_acquire(&flag.status);
-                if(status==function_complete_flag_value)
+                ctx.counted=true;
+                long status=::boost::detail::interlocked_read_acquire(&flag.status);
+                if(status==ctx.function_complete_flag_value)
                 {
                     break;
                 }
-                if(!event_handle)
+                if(!ctx.event_handle)
                 {
-                    event_handle=detail::create_once_event(mutex_name,&flag);
+                    ctx.event_handle=detail::create_once_event(ctx.mutex_name,&flag);
                     continue;
                 }
             }
             BOOST_VERIFY(!::boost::detail::win32::WaitForSingleObject(
-                             event_handle,::boost::detail::win32::infinite));
+                             ctx.event_handle,::boost::detail::win32::infinite));
         }
     }
+    template<typename Function, typename T1, typename T2>
+    void call_once(once_flag& flag,BOOST_THREAD_RV_REF(Function) f, BOOST_THREAD_RV_REF(T1) p1, BOOST_THREAD_RV_REF(T2) p2)
+    {
+        // Try for a quick win: if the procedure has already been called
+        // just skip through:
+        detail::once_context ctx;
+        while(::boost::detail::interlocked_read_acquire(&flag.status)
+              !=ctx.function_complete_flag_value)
+        {
+            if(detail::enter_once_region(flag, ctx))
+            {
+                BOOST_TRY
+                {
+                  BOOST_THREAD_INVOKE_RET_VOID(
+                      thread_detail::decay_copy(boost::forward<Function>(f)),
+                      thread_detail::decay_copy(boost::forward<T1>(p1)),
+                      thread_detail::decay_copy(boost::forward<T2>(p2))
+                  ) BOOST_THREAD_INVOKE_RET_VOID_CALL;
+                }
+                BOOST_CATCH(...)
+                {
+                    detail::rollback_once_region(flag, ctx);
+                    BOOST_RETHROW
+                }
+                BOOST_CATCH_END
+                detail::commit_once_region(flag, ctx);
+                break;
+            }
+            if(!ctx.counted)
+            {
+                BOOST_INTERLOCKED_INCREMENT(&flag.count);
+                ctx.counted=true;
+                long status=::boost::detail::interlocked_read_acquire(&flag.status);
+                if(status==ctx.function_complete_flag_value)
+                {
+                    break;
+                }
+                if(!ctx.event_handle)
+                {
+                    ctx.event_handle=detail::create_once_event(ctx.mutex_name,&flag);
+                    continue;
+                }
+            }
+            BOOST_VERIFY(!::boost::detail::win32::WaitForSingleObject(
+                             ctx.event_handle,::boost::detail::win32::infinite));
+        }
+    }
+    template<typename Function, typename T1, typename T2, typename T3>
+    void call_once(once_flag& flag,BOOST_THREAD_RV_REF(Function) f, BOOST_THREAD_RV_REF(T1) p1, BOOST_THREAD_RV_REF(T2) p2, BOOST_THREAD_RV_REF(T3) p3)
+    {
+        // Try for a quick win: if the procedure has already been called
+        // just skip through:
+        detail::once_context ctx;
+        while(::boost::detail::interlocked_read_acquire(&flag.status)
+              !=ctx.function_complete_flag_value)
+        {
+            if(detail::enter_once_region(flag, ctx))
+            {
+                BOOST_TRY
+                {
+                  BOOST_THREAD_INVOKE_RET_VOID(
+                      thread_detail::decay_copy(boost::forward<Function>(f)),
+                      thread_detail::decay_copy(boost::forward<T1>(p1)),
+                      thread_detail::decay_copy(boost::forward<T2>(p2)),
+                      thread_detail::decay_copy(boost::forward<T3>(p3))
+                  ) BOOST_THREAD_INVOKE_RET_VOID_CALL;
+
+                }
+                BOOST_CATCH(...)
+                {
+                    detail::rollback_once_region(flag, ctx);
+                    BOOST_RETHROW
+                }
+                BOOST_CATCH_END
+                detail::commit_once_region(flag, ctx);
+                break;
+            }
+            if(!ctx.counted)
+            {
+                BOOST_INTERLOCKED_INCREMENT(&flag.count);
+                ctx.counted=true;
+                long status=::boost::detail::interlocked_read_acquire(&flag.status);
+                if(status==ctx.function_complete_flag_value)
+                {
+                    break;
+                }
+                if(!ctx.event_handle)
+                {
+                    ctx.event_handle=detail::create_once_event(ctx.mutex_name,&flag);
+                    continue;
+                }
+            }
+            BOOST_VERIFY(!::boost::detail::win32::WaitForSingleObject(
+                             ctx.event_handle,::boost::detail::win32::infinite));
+        }
+    }
+
+#endif
+#endif
 }
 
 #include <boost/config/abi_suffix.hpp>
author	Tobias Markmann <tm@ayena.de>	2014-10-19 20:22:58 (GMT)
committer	Tobias Markmann <tm@ayena.de>	2014-10-20 13:49:33 (GMT)
commit	6b22dfcf59474dd016a0355a3102a1dd3692d92c (patch)
tree	2b1fd33be433a91e81fee84fdc2bf1b52575d934 /3rdParty/Boost/src/boost/thread/win32/once.hpp
parent	38b0cb785fea8eae5e48fae56440695fdfd10ee1 (diff)
download	swift-6b22dfcf59474dd016a0355a3102a1dd3692d92c.zip swift-6b22dfcf59474dd016a0355a3102a1dd3692d92c.tar.bz2