os_win32_time.cpp
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00001 // this is for emacs file handling -*- mode: c++; indent-tabs-mode: nil -*-
00002 
00003 // -- BEGIN LICENSE BLOCK ----------------------------------------------
00004 // This file is part of FZIs ic_workspace.
00005 //
00006 // This program is free software licensed under the LGPL
00007 // (GNU LESSER GENERAL PUBLIC LICENSE Version 3).
00008 // You can find a copy of this license in LICENSE folder in the top
00009 // directory of the source code.
00010 //
00011 // © Copyright 2014 FZI Forschungszentrum Informatik, Karlsruhe, Germany
00012 //
00013 // -- END LICENSE BLOCK ------------------------------------------------
00014 
00015 //----------------------------------------------------------------------
00022 //----------------------------------------------------------------------
00023 #include <sys/types.h>
00024 #include <sys/timeb.h>
00025 
00026 #include "icl_core/TimeSpan.h"
00027 #include "icl_core/TimeStamp.h"
00028 #include "icl_core/os_win32_time.h"
00029 
00030 namespace icl_core {
00031 namespace os {
00032 namespace hidden_win32 {
00033 
00034 void gettimeofday(struct timespec *time)
00035 {
00036   struct _timeb tod;
00037   _ftime_s(&tod);
00038   //Care: _ftime resolves in millisec
00039   time->tv_sec = time_t(tod.time);
00040   time->tv_nsec = tod.millitm*1000000;
00041 }
00042 
00043 int nanosleep(const struct timespec *rqtp, struct timespec *rmtp)
00044 {
00045   icl_core::TimeSpan wait_time(*rqtp);
00046   icl_core::TimeStamp start_time = icl_core::TimeStamp();
00047 
00048   DWORD sleeptime_ms = DWORD(1000*rqtp->tv_sec + rqtp->tv_nsec/1000000);
00049   Sleep(sleeptime_ms);
00050   icl_core::TimeSpan sleep_time = ::icl_core::TimeStamp() - start_time;
00051 
00052   // 1ms deviation is ok!
00053   if (sleep_time + icl_core::TimeSpan(0, 1000000) >= wait_time)
00054   {
00055     if (rmtp != 0)
00056     {
00057       rmtp->tv_sec = 0;
00058       rmtp->tv_nsec = 0;
00059     }
00060     return 0;
00061   }
00062   else
00063   {
00064     if (rmtp != 0)
00065     {
00066       icl_core::TimeSpan remaining_sleep_time = wait_time - sleep_time;
00067       rmtp->tv_sec = remaining_sleep_time.tsSec();
00068       rmtp->tv_nsec = remaining_sleep_time.tsNSec();
00069     }
00070     return -1;
00071   }
00072 }
00073 
00074 unsigned int sleep(unsigned int seconds)
00075 {
00076   ::icl_core::TimeStamp start_time = icl_core::TimeStamp();
00077 
00078   ::Sleep(DWORD(1000*seconds));
00079   ::icl_core::TimeSpan sleep_time = ::icl_core::TimeStamp() - start_time;
00080 
00081   if (sleep_time.tsSec() >= seconds)
00082   {
00083     return 0;
00084   }
00085   else
00086   {
00087     return static_cast<unsigned int>(sleep_time.tsSec() - seconds);
00088   }
00089 }
00090 
00091 int usleep(unsigned long useconds)
00092 {
00093   ::icl_core::TimeStamp start_time;
00094 
00095   ::Sleep(DWORD(useconds/1000));
00096   ::icl_core::TimeSpan sleep_time = ::icl_core::TimeStamp() - start_time;
00097 
00098   // 1ms deviation is ok!
00099   if (sleep_time.toUSec() + 1000 >= useconds)
00100   {
00101     return 0;
00102   }
00103   else
00104   {
00105     return -1;
00106   }
00107 }
00108 
00109 
00110 }
00111 }
00112 }


schunk_svh_driver
Author(s): Georg Heppner
autogenerated on Fri Aug 28 2015 12:59:19