Use std::this_thread::get_id() instead of log4tango::threading::thread_id()

Following a suggestion from @mliszcz
Removed log4tango::threading::thread_id() no longer used
log4tango::LoggingEvent::thread_id is now an std::thread::id instead of a long

Author: bourtemb

log4tango/include/log4tango/LoggingEvent.hh

@@ -30,6 +30,7 @@
 
 #include <log4tango/Portability.hh>
 #include <string>
+#include <thread>
 
 #include <log4tango/Level.hh>
 #include <log4tango/TimeStamp.hh>
@@ -92,7 +93,7 @@ public:
   std::string thread_name;
 
   /** id of thread in which this logging event was generated */
-  long thread_id;
+  std::thread::id thread_id;
 
   /** The number of seconds elapsed since the epoch 
       (1/1/1970 00:00:00 UTC) until logging event was created. */

log4tango/include/log4tango/threading/MSThreads.hh

@@ -66,8 +66,6 @@ namespace threading {
 
 std::string get_thread_id (void);
 
-long thread_id (void);
-
 //-----------------------------------------------------------------------------
 // Class : MSMutex 
 //-----------------------------------------------------------------------------      

log4tango/include/log4tango/threading/PThreads.hh

@@ -40,8 +40,6 @@ namespace threading {
 
 std::string get_thread_id (void);
 
-long thread_id (void);
-
 //-----------------------------------------------------------------------------
 // Class : Mutex
 //-----------------------------------------------------------------------------

log4tango/src/LoggingEvent.cpp

@@ -46,7 +46,7 @@ LoggingEvent::LoggingEvent (const std::string& _logger_name,
     level(_level)
 {
   //-- thread_name = threading::get_thread_id();
-  thread_id =  threading::thread_id();
+  thread_id =  std::this_thread::get_id();
 }
 
 LoggingEvent::LoggingEvent (const LoggingEvent& _src)

log4tango/src/MSThreads.cpp

@@ -43,14 +43,6 @@ std::string get_thread_id (void)
   return std::string(buffer);
 }
 
-//+----------------------------------------------------------------------------
-// method : thread_id
-//----------------------------------------------------------------------------- 
-long thread_id (void) 
-{
-  return static_cast<long>(::GetCurrentThreadId());
-}
-
 } // namespace threading
 
 } // namespace log4tango

log4tango/src/PThreads.cpp

@@ -48,23 +48,6 @@ std::string get_thread_id (void)
   return oss.str();
 }
 
-//+----------------------------------------------------------------------------
-// method : thread_id
-//----------------------------------------------------------------------------- 
-long thread_id (void) 
-{
-#ifndef __darwin__
-	#if (!defined (__FreeBSD__) && !defined( __OpenBSD__) )
-		return static_cast<long>(::pthread_self());
-	#else
-		return reinterpret_cast<long>(::pthread_self());
-	#endif
-#else
-	pthread_t thread = ::pthread_self();
-	return thread->__sig;
-#endif
-}
-
 //+----------------------------------------------------------------------------
 // method : RecursiveMutex::RecursiveMutex
 //-----------------------------------------------------------------------------