The OpenNET Project / Index page

[ новости /+++ | форум | теги | ]

Интерактивная система просмотра системных руководств (man-ов)

 ТемаНаборКатегория 
 
 [Cписок руководств | Печать]

time_second (9)
  • >> time_second (9) ( FreeBSD man: Ядро )

  • BSD mandoc
     

    NAME

    
    
    boottime
    
     
    time_second
    
     
    time_uptime
    
     - system time variables
    
     
    

    SYNOPSIS

       #include <sys/time.h>

    Vt extern struct timeval boottime ; Vt extern time_t time_second ; Vt extern time_t time_uptime ;  

    DESCRIPTION

    The boottime variable holds the system boot time.

    The time_second variable is the system's ``wall time'' clock to the second.

    The time_uptime variable is the number of seconds since boot.

    The bintime(9), getbintime(9), microtime(9), getmicrotime(9), nanotime(9), and getnanotime(9) functions can be used to get the current time more accurately and in an atomic manner. Similarly, the binuptime(9), getbinuptime(9), microuptime(9), getmicrouptime(9), nanouptime(9), and getnanouptime(9) functions can be used to get the time elapse since boot more accurately and in an atomic manner. The boottime variable may be read and written without special precautions.  

    SEE ALSO

    clock_settime2, ntp_adjtime2, settimeofday(2), bintime(9), binuptime(9), getbintime(9), getbinuptime(9), getmicrotime(9), getmicrouptime(9), getnanotime(9), getnanouptime(9), microtime(9), microuptime(9), nanotime(9), nanouptime(9)
    "Poul-Henning Kamp" "Timecounters: Efficient and precise timekeeping in SMP kernels" "Proceedings of EuroBSDCon 2002, Amsterdam" /usr/share/doc/papers/timecounter.ascii.gz
    "Marshall Kirk McKusick" "George V. Neville-Neil" "The Design and Implementation of the FreeBSD Operating System" "July 2004" "57-61,65-66"


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    SEE ALSO


    Поиск по тексту MAN-ов: 




    Партнёры:
    PostgresPro
    Inferno Solutions
    Hosting by Hoster.ru
    Хостинг:

    Закладки на сайте
    Проследить за страницей
    Created 1996-2024 by Maxim Chirkov
    Добавить, Поддержать, Вебмастеру