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<HTML
><HEAD
><TITLE
>rt_get_time (V1 compat)</TITLE
><META
NAME="GENERATOR"
CONTENT="Modular DocBook HTML Stylesheet Version 1.64
"></HEAD
><BODY
CLASS="REFENTRY"
><H1
><A
NAME="AEN1"
>rt_get_time (V1 compat)</A
></H1
><DIV
CLASS="REFNAMEDIV"
><A
NAME="AEN5"
></A
><H2
>Name</H2
>rt_get_time -- get time in ticks</DIV
><DIV
CLASS="REFSYNOPSISDIV"
><A
NAME="AEN8"
></A
><H2
>Synopsis</H2
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><PRE
CLASS="SYNOPSIS"
>
#include <rtl_time.h>
hrtime_t <TT
CLASS="FUNCTION"
>gethrtime</TT
>(void);</PRE
></TD
></TR
></TABLE
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN11"
></A
><H2
>Description</H2
><P
>Warning: V1 compatibility only. For new programs, please see <TT
CLASS="FUNCTION"
>gethrtime(3)</TT
>, <TT
CLASS="FUNCTION"
>clock_gethrtime(3)</TT
>.
<TT
CLASS="FUNCTION"
>rt_get_time</TT
> returns the time in clock ticks since the system
bootup. This
time is never reset or adjusted. For some horrible reason,
<TT
CLASS="PARAMETER"
><I
>hrtime</I
></TT
> has a differrent meaning when the V1 compat
config option is selected. This is a BUG!</P
><P
>The <TT
CLASS="PARAMETER"
><I
>RT_TIME_END</I
></TT
> symbol represents the maximum possible value that <TT
CLASS="FUNCTION"
>rt_get_time()</TT
> could possibly return. This value will be never
reached during the execution of the system, and can be used to designate the infinitely distant moment in time.</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN21"
></A
><H2
>Notes</H2
><P
>"Clock ticks" are PC 8254 timer ticks (1/1193180s). This function is part of the RTLinux v1 compatability API. Use in new applications is not encouraged.</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN24"
></A
><H2
>Author</H2
><P
>Michael Barabanov and Victor Yodaiken (<A
HREF="mailto:support@fsmlabs.com"
TARGET="_top"
>support@fsmlabs.com</A
>)</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN28"
></A
><H2
>See Also</H2
><A
HREF="gethrtime.3.html"
TARGET="_top"
>gethrtime(3)</A
><P
>1997 Jerry Epplin.</P
><P
>Modifications for RTLinux 2.x and 3.x by Michael Barabanov. 2001 FSMLabs Inc.</P
><P
>All rights reserved.</P
></DIV
></BODY
></HTML
>
|
