Mercurial > MadButterfly
view src/timertool.c @ 1399:9cebe429508c
Override the clone_from_subtree to setup the parent and children for the coord object. However, the current children is incorrect since we can not copy it from the origin tree. Instead, we need to get coord_t from the cloned group and then modify all coord objects to include correct parent, children, add_shape and clone_from_subtree.
author | wycc |
---|---|
date | Sun, 03 Apr 2011 11:51:39 +0800 |
parents | 586e50f82c1f |
children |
line wrap: on
line source
// -*- indent-tabs-mode: t; tab-width: 8; c-basic-offset: 4; -*- // vim: sw=4:ts=8:sts=4 #include <stdio.h> #include <sys/time.h> #ifdef __FreeBSD__ #include <machine/cpufunc.h> #include <sys/types.h> #include <sys/sysctl.h> #endif #include "mb_timer.h" #ifdef __FreeBSD__ void get_now(mb_timeval_t *tmo) { struct timeval tv; static uint64_t cpufreq; static uint64_t diff; static mb_timeval_t tm = {0, 0}; static uint64_t last_ts; mb_timeval_t diff_tm; uint64_t ts, udiff, sdiff; size_t sysctl_sz; int r; if(MB_TIMEVAL_SEC(&tm) == 0) { sysctl_sz = sizeof(uint64_t); r = sysctlbyname("kern.timecounter.tc.TSC.frequency", &cpufreq, &sysctl_sz, NULL, 0); if(r == -1) { perror("sysctl"); return; } gettimeofday(&tv, NULL); last_ts = rdtsc(); MB_TIMEVAL_SET(tmo, tv.tv_sec, tv.tv_usec); MB_TIMEVAL_CP(&tm, tmo); diff = 0; } else { ts = rdtsc(); diff += ts - last_ts; sdiff = diff / cpufreq; udiff = (diff % cpufreq) * 1000000 / cpufreq; MB_TIMEVAL_SET(&diff_tm, sdiff, udiff); MB_TIMEVAL_CP(tmo, &tm); MB_TIMEVAL_ADD(tmo, &diff_tm); MB_TIMEVAL_SET(&diff_tm, sdiff, 0); MB_TIMEVAL_ADD(&tm, &diff_tm); diff %= cpufreq; last_ts = ts; } } #else /* __FreeBSD__ */ void get_now(mb_timeval_t *tmo) { struct timeval tv; gettimeofday(&tv, NULL); MB_TIMEVAL_SET(tmo, tv.tv_sec, tv.tv_usec); } #endif /* __FreeBSD__ */