Initial work for G-code sender and more intensive usage of Boost

xs/include/boost/chrono/detail/inlined/chrono.hpp

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+//  chrono.cpp  --------------------------------------------------------------//
+
+//  Copyright Beman Dawes 2008
+//  Copyright Vicente J. Botet Escriba 2009
+
+//  Distributed under the Boost Software License, Version 1.0.
+//  See http://www.boost.org/LICENSE_1_0.txt
+
+#ifndef BOOST_CHRONO_DETAIL_INLINED_CHRONO_HPP
+#define BOOST_CHRONO_DETAIL_INLINED_CHRONO_HPP
+
+#include <boost/version.hpp>
+#include <boost/chrono/chrono.hpp>
+#include <boost/system/system_error.hpp>
+#include <boost/throw_exception.hpp>
+#include <boost/chrono/detail/system.hpp>
+
+//----------------------------------------------------------------------------//
+//                                                                            //
+//                     Platform-specific Implementations                      //
+//                                                                            //
+//----------------------------------------------------------------------------//
+
+//----------------------------------------------------------------------------//
+//                                Windows                                     //
+//----------------------------------------------------------------------------//
+#if defined(BOOST_CHRONO_WINDOWS_API)
+#include <boost/chrono/detail/inlined/win/chrono.hpp>
+
+//----------------------------------------------------------------------------//
+//                                 Mac                                        //
+//----------------------------------------------------------------------------//
+#elif defined(BOOST_CHRONO_MAC_API)
+#include <boost/chrono/detail/inlined/mac/chrono.hpp>
+
+//----------------------------------------------------------------------------//
+//                                POSIX                                     //
+//----------------------------------------------------------------------------//
+#elif defined(BOOST_CHRONO_POSIX_API)
+#include <boost/chrono/detail/inlined/posix/chrono.hpp>
+
+#endif  // POSIX
+
+#endif

xs/include/boost/chrono/detail/inlined/mac/chrono.hpp

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+//  mac/chrono.cpp  --------------------------------------------------------------//
+
+//  Copyright Beman Dawes 2008
+//  Copyright 2009-2010 Vicente J. Botet Escriba
+
+//  Distributed under the Boost Software License, Version 1.0.
+//  See http://www.boost.org/LICENSE_1_0.txt
+
+
+//----------------------------------------------------------------------------//
+//                                 Mac                                        //
+//----------------------------------------------------------------------------//
+
+#include <sys/time.h> //for gettimeofday and timeval
+#include <mach/mach_time.h>  // mach_absolute_time, mach_timebase_info_data_t
+
+namespace boost
+{
+namespace chrono
+{
+
+// system_clock
+
+// gettimeofday is the most precise "system time" available on this platform.
+// It returns the number of microseconds since New Years 1970 in a struct called timeval
+// which has a field for seconds and a field for microseconds.
+//    Fill in the timeval and then convert that to the time_point
+system_clock::time_point
+system_clock::now() BOOST_NOEXCEPT
+{
+    timeval tv;
+    gettimeofday(&tv, 0);
+    return time_point(seconds(tv.tv_sec) + microseconds(tv.tv_usec));
+}
+
+#if !defined BOOST_CHRONO_DONT_PROVIDE_HYBRID_ERROR_HANDLING
+system_clock::time_point
+system_clock::now(system::error_code & ec)
+{
+    timeval tv;
+    gettimeofday(&tv, 0);
+    if (!BOOST_CHRONO_IS_THROWS(ec)) 
+    {
+        ec.clear();
+    }
+    return time_point(seconds(tv.tv_sec) + microseconds(tv.tv_usec));
+}
+#endif
+// Take advantage of the fact that on this platform time_t is nothing but
+//    an integral count of seconds since New Years 1970 (same epoch as timeval).
+//    Just get the duration out of the time_point and truncate it to seconds.
+time_t
+system_clock::to_time_t(const time_point& t) BOOST_NOEXCEPT
+{
+    return time_t(duration_cast<seconds>(t.time_since_epoch()).count());
+}
+
+// Just turn the time_t into a count of seconds and construct a time_point with it.
+system_clock::time_point
+system_clock::from_time_t(time_t t) BOOST_NOEXCEPT
+{
+    return system_clock::time_point(seconds(t));
+}
+
+namespace chrono_detail
+{
+
+// steady_clock
+
+// Note, in this implementation steady_clock and high_resolution_clock
+//   are the same clock.  They are both based on mach_absolute_time().
+//   mach_absolute_time() * MachInfo.numer / MachInfo.denom is the number of
+//   nanoseconds since the computer booted up.  MachInfo.numer and MachInfo.denom
+//   are run time constants supplied by the OS.  This clock has no relationship
+//   to the Gregorian calendar.  It's main use is as a high resolution timer.
+
+// MachInfo.numer / MachInfo.denom is often 1 on the latest equipment.  Specialize
+//   for that case as an optimization.
+BOOST_CHRONO_STATIC
+steady_clock::rep
+steady_simplified()
+{
+    return mach_absolute_time();
+}
+
+#if !defined BOOST_CHRONO_DONT_PROVIDE_HYBRID_ERROR_HANDLING
+BOOST_CHRONO_STATIC
+steady_clock::rep
+steady_simplified_ec(system::error_code & ec)
+{
+    if (!BOOST_CHRONO_IS_THROWS(ec)) 
+    {
+        ec.clear();
+    }
+    return mach_absolute_time();
+}
+#endif
+
+BOOST_CHRONO_STATIC
+double
+compute_steady_factor(kern_return_t& err)
+{
+    mach_timebase_info_data_t MachInfo;
+    err = mach_timebase_info(&MachInfo);
+    if ( err != 0  ) {
+        return 0;
+    }
+    return static_cast<double>(MachInfo.numer) / MachInfo.denom;
+}
+
+BOOST_CHRONO_STATIC
+steady_clock::rep
+steady_full()
+{
+    static kern_return_t err;
+    static const double factor = chrono_detail::compute_steady_factor(err);
+    if (err != 0) 
+    {
+      BOOST_ASSERT(0 && "Boost::Chrono - Internal Error");
+    }
+    return static_cast<steady_clock::rep>(mach_absolute_time() * factor);
+}
+
+#if !defined BOOST_CHRONO_DONT_PROVIDE_HYBRID_ERROR_HANDLING
+BOOST_CHRONO_STATIC
+steady_clock::rep
+steady_full_ec(system::error_code & ec)
+{
+    static kern_return_t err;
+    static const double factor = chrono_detail::compute_steady_factor(err);
+    if (err != 0) 
+    {
+        if (BOOST_CHRONO_IS_THROWS(ec))
+        {
+            boost::throw_exception(
+                    system::system_error( 
+                            err, 
+                            BOOST_CHRONO_SYSTEM_CATEGORY, 
+                            "chrono::steady_clock" ));
+        } 
+        else
+        {
+            ec.assign( errno, BOOST_CHRONO_SYSTEM_CATEGORY );
+            return steady_clock::rep();
+        }
+    }
+    if (!BOOST_CHRONO_IS_THROWS(ec)) 
+    {
+        ec.clear();
+    }
+    return static_cast<steady_clock::rep>(mach_absolute_time() * factor);
+}
+#endif
+
+typedef steady_clock::rep (*FP)();
+#if !defined BOOST_CHRONO_DONT_PROVIDE_HYBRID_ERROR_HANDLING
+typedef steady_clock::rep (*FP_ec)(system::error_code &);
+#endif
+
+BOOST_CHRONO_STATIC
+FP
+init_steady_clock(kern_return_t & err)
+{
+    mach_timebase_info_data_t MachInfo;
+    err = mach_timebase_info(&MachInfo);
+    if ( err != 0  ) 
+    {
+        return 0;
+    }
+
+    if (MachInfo.numer == MachInfo.denom)
+    {
+        return &chrono_detail::steady_simplified;
+    }
+    return &chrono_detail::steady_full;
+}
+
+#if !defined BOOST_CHRONO_DONT_PROVIDE_HYBRID_ERROR_HANDLING
+BOOST_CHRONO_STATIC
+FP_ec
+init_steady_clock_ec(kern_return_t & err)
+{
+    mach_timebase_info_data_t MachInfo;
+    err = mach_timebase_info(&MachInfo);
+    if ( err != 0  ) 
+    {
+        return 0;
+    }
+
+    if (MachInfo.numer == MachInfo.denom) 
+    {
+        return &chrono_detail::steady_simplified_ec;
+    }
+    return &chrono_detail::steady_full_ec;
+}
+#endif
+}
+
+steady_clock::time_point
+steady_clock::now() BOOST_NOEXCEPT
+{
+    static kern_return_t err;
+    static chrono_detail::FP fp = chrono_detail::init_steady_clock(err);
+    if ( err != 0  ) 
+    {     
+      BOOST_ASSERT(0 && "Boost::Chrono - Internal Error");
+    }
+    return time_point(duration(fp()));
+}
+
+#if !defined BOOST_CHRONO_DONT_PROVIDE_HYBRID_ERROR_HANDLING
+steady_clock::time_point
+steady_clock::now(system::error_code & ec)
+{
+    static kern_return_t err;
+    static chrono_detail::FP_ec fp = chrono_detail::init_steady_clock_ec(err);
+    if ( err != 0  ) 
+    {
+        if (BOOST_CHRONO_IS_THROWS(ec))
+        {
+            boost::throw_exception(
+                    system::system_error( 
+                            err, 
+                            BOOST_CHRONO_SYSTEM_CATEGORY, 
+                            "chrono::steady_clock" ));
+        }
+        else
+        {
+            ec.assign( err, BOOST_CHRONO_SYSTEM_CATEGORY );
+            return time_point();
+        }
+    }
+    if (!BOOST_CHRONO_IS_THROWS(ec)) 
+    {
+        ec.clear();
+    }
+    return time_point(duration(fp(ec)));
+}
+#endif
+}  // namespace chrono
+}  // namespace boost

xs/include/boost/chrono/detail/inlined/posix/chrono.hpp

@@ -0,0 +1,120 @@
+//  posix/chrono.cpp  --------------------------------------------------------------//
+
+//  Copyright Beman Dawes 2008
+//  Copyright Vicente J. Botet Escriba 2009
+
+//  Distributed under the Boost Software License, Version 1.0.
+//  See http://www.boost.org/LICENSE_1_0.txt
+
+//----------------------------------------------------------------------------//
+//                                POSIX                                     //
+//----------------------------------------------------------------------------//
+
+#include <time.h>  // for clock_gettime
+
+namespace boost
+{
+namespace chrono
+{
+
+  system_clock::time_point system_clock::now() BOOST_NOEXCEPT
+  {
+    timespec ts;
+    if ( ::clock_gettime( CLOCK_REALTIME, &ts ) )
+    {
+      BOOST_ASSERT(0 && "Boost::Chrono - Internal Error");
+    }
+
+    return time_point(duration(
+      static_cast<system_clock::rep>( ts.tv_sec ) * 1000000000 + ts.tv_nsec));
+  }
+
+#if !defined BOOST_CHRONO_DONT_PROVIDE_HYBRID_ERROR_HANDLING
+  system_clock::time_point system_clock::now(system::error_code & ec)
+  {
+    timespec ts;
+    if ( ::clock_gettime( CLOCK_REALTIME, &ts ) )
+    {
+        if (BOOST_CHRONO_IS_THROWS(ec))
+        {
+            boost::throw_exception(
+                    system::system_error( 
+                            errno, 
+                            BOOST_CHRONO_SYSTEM_CATEGORY, 
+                            "chrono::system_clock" ));
+        }
+        else
+        {
+            ec.assign( errno, BOOST_CHRONO_SYSTEM_CATEGORY );
+            return time_point();
+        }
+    }
+
+    if (!BOOST_CHRONO_IS_THROWS(ec)) 
+    {
+        ec.clear();
+    }
+    return time_point(duration(
+      static_cast<system_clock::rep>( ts.tv_sec ) * 1000000000 + ts.tv_nsec));
+  }
+#endif
+
+  std::time_t system_clock::to_time_t(const system_clock::time_point& t) BOOST_NOEXCEPT
+  {
+      return static_cast<std::time_t>( t.time_since_epoch().count() / 1000000000 );
+  }
+
+  system_clock::time_point system_clock::from_time_t(std::time_t t) BOOST_NOEXCEPT
+  {
+      return time_point(duration(static_cast<system_clock::rep>(t) * 1000000000));
+  }
+
+#ifdef BOOST_CHRONO_HAS_CLOCK_STEADY
+
+  steady_clock::time_point steady_clock::now() BOOST_NOEXCEPT
+  {
+    timespec ts;
+    if ( ::clock_gettime( CLOCK_MONOTONIC, &ts ) )
+    {
+      BOOST_ASSERT(0 && "Boost::Chrono - Internal Error");
+    }
+
+    return time_point(duration(
+      static_cast<steady_clock::rep>( ts.tv_sec ) * 1000000000 + ts.tv_nsec));
+  }
+
+#if !defined BOOST_CHRONO_DONT_PROVIDE_HYBRID_ERROR_HANDLING
+  steady_clock::time_point steady_clock::now(system::error_code & ec)
+  {
+    timespec ts;
+    if ( ::clock_gettime( CLOCK_MONOTONIC, &ts ) )
+    {
+        if (BOOST_CHRONO_IS_THROWS(ec))
+        {
+            boost::throw_exception(
+                    system::system_error( 
+                            errno, 
+                            BOOST_CHRONO_SYSTEM_CATEGORY, 
+                            "chrono::steady_clock" ));
+        }
+        else
+        {
+            ec.assign( errno, BOOST_CHRONO_SYSTEM_CATEGORY );
+            return time_point();
+        }
+    }
+
+    if (!BOOST_CHRONO_IS_THROWS(ec)) 
+    {
+        ec.clear();
+    }
+    return time_point(duration(
+      static_cast<steady_clock::rep>( ts.tv_sec ) * 1000000000 + ts.tv_nsec));
+  }
+#endif
+#endif
+
+}  // namespace chrono
+}  // namespace boost
+
+

xs/include/boost/chrono/detail/inlined/win/chrono.hpp

@@ -0,0 +1,139 @@
+//  win/chrono.cpp  --------------------------------------------------------------//
+
+//  Copyright Beman Dawes 2008
+//  Copyright 2009-2010 Vicente J. Botet Escriba
+
+//  Distributed under the Boost Software License, Version 1.0.
+//  See http://www.boost.org/LICENSE_1_0.txt
+
+//----------------------------------------------------------------------------//
+//                                Windows                                     //
+//----------------------------------------------------------------------------//
+#ifndef BOOST_CHRONO_DETAIL_INLINED_WIN_CHRONO_HPP
+#define BOOST_CHRONO_DETAIL_INLINED_WIN_CHRONO_HPP
+
+#include <boost/detail/winapi/time.hpp>
+#include <boost/detail/winapi/timers.hpp>
+#include <boost/detail/winapi/GetLastError.hpp>
+
+namespace boost
+{
+namespace chrono
+{
+namespace chrono_detail
+{
+
+  BOOST_CHRONO_INLINE double get_nanosecs_per_tic() BOOST_NOEXCEPT
+  {
+      boost::detail::winapi::LARGE_INTEGER_ freq;
+      if ( !boost::detail::winapi::QueryPerformanceFrequency( &freq ) )
+          return 0.0L;
+      return double(1000000000.0L / freq.QuadPart);
+  }
+
+}
+
+  steady_clock::time_point steady_clock::now() BOOST_NOEXCEPT
+  {
+    static double nanosecs_per_tic = chrono_detail::get_nanosecs_per_tic();
+
+    boost::detail::winapi::LARGE_INTEGER_ pcount;
+    if ( (nanosecs_per_tic <= 0.0L) ||
+            (!boost::detail::winapi::QueryPerformanceCounter( &pcount )) )
+    {
+      BOOST_ASSERT(0 && "Boost::Chrono - Internal Error");
+      return steady_clock::time_point();
+    }
+
+    return steady_clock::time_point(steady_clock::duration(
+      static_cast<steady_clock::rep>((nanosecs_per_tic) * pcount.QuadPart)));
+  }
+
+
+#if !defined BOOST_CHRONO_DONT_PROVIDE_HYBRID_ERROR_HANDLING
+  steady_clock::time_point steady_clock::now( system::error_code & ec )
+  {
+    static double nanosecs_per_tic = chrono_detail::get_nanosecs_per_tic();
+
+    boost::detail::winapi::LARGE_INTEGER_ pcount;
+    if ( (nanosecs_per_tic <= 0.0L)
+            || (!boost::detail::winapi::QueryPerformanceCounter( &pcount )) )
+    {
+        boost::detail::winapi::DWORD_ cause =
+            ((nanosecs_per_tic <= 0.0L)
+                    ? ERROR_NOT_SUPPORTED
+                    : boost::detail::winapi::GetLastError());
+        if (BOOST_CHRONO_IS_THROWS(ec)) {
+            boost::throw_exception(
+                    system::system_error(
+                            cause,
+                            BOOST_CHRONO_SYSTEM_CATEGORY,
+                            "chrono::steady_clock" ));
+        }
+        else
+        {
+            ec.assign( cause, BOOST_CHRONO_SYSTEM_CATEGORY );
+            return steady_clock::time_point(duration(0));
+        }
+    }
+
+    if (!BOOST_CHRONO_IS_THROWS(ec))
+    {
+        ec.clear();
+    }
+    return time_point(duration(
+      static_cast<steady_clock::rep>(nanosecs_per_tic * pcount.QuadPart)));
+  }
+#endif
+
+  BOOST_CHRONO_INLINE
+  system_clock::time_point system_clock::now() BOOST_NOEXCEPT
+  {
+    boost::detail::winapi::FILETIME_ ft;
+    boost::detail::winapi::GetSystemTimeAsFileTime( &ft );  // never fails
+    return system_clock::time_point(
+      system_clock::duration(
+        ((static_cast<__int64>( ft.dwHighDateTime ) << 32) | ft.dwLowDateTime)
+       -116444736000000000LL
+      )
+    );
+  }
+
+#if !defined BOOST_CHRONO_DONT_PROVIDE_HYBRID_ERROR_HANDLING
+  BOOST_CHRONO_INLINE
+  system_clock::time_point system_clock::now( system::error_code & ec )
+  {
+    boost::detail::winapi::FILETIME_ ft;
+    boost::detail::winapi::GetSystemTimeAsFileTime( &ft );  // never fails
+    if (!BOOST_CHRONO_IS_THROWS(ec))
+    {
+        ec.clear();
+    }
+    return system_clock::time_point(
+      system_clock::duration(
+       ((static_cast<__int64>( ft.dwHighDateTime ) << 32) | ft.dwLowDateTime)
+       -116444736000000000LL
+       ));
+  }
+#endif
+
+  BOOST_CHRONO_INLINE
+  std::time_t system_clock::to_time_t(const system_clock::time_point& t) BOOST_NOEXCEPT
+  {
+      __int64 temp = t.time_since_epoch().count();
+      temp /= 10000000;
+      return static_cast<std::time_t>( temp );
+  }
+
+  BOOST_CHRONO_INLINE
+  system_clock::time_point system_clock::from_time_t(std::time_t t) BOOST_NOEXCEPT
+  {
+      __int64 temp = t;
+      temp *= 10000000;
+      return time_point(duration(temp));
+  }
+
+}  // namespace chrono
+}  // namespace boost
+
+#endif