gettimeofday, settimeofday 또는 ftime Subroutine gettimer, settimer, restimer, stime, or time Subroutine gettimerid Subroutine getttyent, getttynam, setttyent 또는 endttyent Subroutine getuid, geteuid 또는 getuidx Subroutine getuinfo Subroutine getuinfox Subroutine getuserattr, IDtouser,...
注意:返回的是UTC标准的秒数,如果你在格林威治和上海同时调用这个函数,则这2个值是一样的,都是格林威治的当前秒数,并没有算时区。 int gettimeofday(struct timeval *tv, struct timezone *tz); int settimeofday(const struct timeval *tv, const struct timezone *tz); 1. 2. 这个timeval是相对time_t更...
getrockneter paprika gets advice maze gettimeofday getting carried away getting dinner getting information a getting out eggs getting ready for bad getting rready for th getting started in re getting started getting stuck getting wet the whole gettingdownto busines getty center and muse getwordabstruse...
gettimeofday, settimeofday, or ftime Subroutine gettimer, settimer, restimer, stime, or time Subroutine gettimerid Subroutine getttyent, getttynam, setttyent, or endttyent Subroutine getuid, geteuid, or getuidx Subroutine getuinfo Subroutine getuinfox Subroutine getuserattr, IDtouser,...
调用gettimeofday()需要从用户态切换到内核态; gettimeofday()的表现受Linux系统计时器(时钟源)影响,在HPET计时器下性能尤其差; 系统只有一个全局时钟源,高并发或频繁访问会造成严重的争用。 看起来挺有道理的,用户态切换到内核态/原子时钟...那怎么解决呢? 解决...
static void do_refresh (NAApplication *application) { struct timeval t; gettimeofday (&t, NULL); GList *proc_info = na_process_info_get_all (t); if (proc_info == NULL) return; GVariantBuilder *builder = g_variant_builder_new (G_VARIANT_TYPE_ARRAY); while (proc_info != NUL...
gettimeofday(&tv, NULL); // t(rtsp/rtp时间戳,单位s) = t(采集时间戳,单位秒)*音视频时钟频率 或者 t(rtsp/rtp时间戳,单位ms)=(t采集时间戳,单位ms)*(时钟频率/1000) // 时钟频率是1秒内的频率,比如视频时90000HZ,1ms的话就是90HZ // 这种计算方式和ts+=时钟频率/帧率(此时ts需要初始值,一般为...
longmillisecondNow() { structcc_timeval now; CCTime::gettimeofdayCocos2d(&now, NULL); return(now.tv_sec * 1000 + now.tv_usec / 1000); } 1. 2. 3. 4. 5. 6. 接下来就是记录每次的时间,然后判断时间差,就可以进行想要的操作了。
if (gettimeofday(&tstart, NULL) == -1) { fprintf(stderr, "Failed to get start time\n"); return 1; } for (i = 0; i < COUNT; i++) { if (nanosleep(&slptm, NULL) == -1) { perror("Failed to nanosleep"); return 1; ...
190 'gettimeofday', 191 ] 192 193 foreach f : check_functions 194 if cc.has_function(f) 195 define = 'HAVE_' + f.underscorify().to_upper() 196 cdata.set(define, 1) 197 endif 198 endforeach 199 Add support for Meson as alternative/parallel build system Aug 12, 2016...