ecl_time: cpuwatch_rt.cpp Source File

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00001 
00008 /*****************************************************************************
00009 ** Platform Check
00010 *****************************************************************************/
00011 
00012 #include <ecl/config.hpp>
00013 
00014 #if defined(ECL_IS_POSIX)
00015   // monotonic clock, cpu clock -> clock_gettime; clock_selection -> clock_nanosleep
00016   #if defined(_POSIX_MONOTONIC_CLOCK) && (_POSIX_MONOTONIC_CLOCK) >= 0L && defined(_POSIX_CLOCK_SELECTION) && (_POSIX_CLOCK_SELECTION) >= 0L
00017 
00018 
00019 /*****************************************************************************
00020 ** Includes
00021 *****************************************************************************/
00022 
00023 #include "../../include/ecl/time/cpuwatch_rt.hpp"
00024 #include <ecl/time_lite/cpu_time.hpp>
00025 
00026 /*****************************************************************************
00027 ** Namespaces
00028 *****************************************************************************/
00029 
00030 namespace ecl {
00031 
00032 /*****************************************************************************
00033 ** Implementation [CpuWatch]
00034 *****************************************************************************/
00035 
00036 CpuWatch::CpuWatch() {
00037         cpu_time(tmp);
00038         start_time.stamp(tmp.tv_sec, tmp.tv_nsec);
00039         split_time = start_time;
00040 };
00041 
00042 /*****************************************************************************
00043 ** Implementation
00044 *****************************************************************************/
00045 
00046 void CpuWatch::restart()
00047 {
00048         cpu_time(tmp);
00049         start_time.stamp(tmp.tv_sec, tmp.tv_nsec);
00050     split_time = start_time;
00051 }
00052 
00053 TimeStamp CpuWatch::elapsed()
00054 {
00055         cpu_time(tmp);
00056     TimeStamp current_time(tmp.tv_sec, tmp.tv_nsec);
00057     return ( current_time - start_time );
00058 }
00059 
00060 TimeStamp CpuWatch::split()
00061 {
00062     TimeStamp last_time = split_time;
00063         cpu_time(tmp);
00064     split_time.stamp(tmp.tv_sec,tmp.tv_nsec);
00065     return (split_time - last_time);
00066 }
00067 
00068 }; // namespace ecl
00069 
00070 #endif /* MANY POSIX TIME REQ'MENTS */
00071 #endif /* ECL_IS_POSIX */
00072