Experimental Physics and
Industrial Control System

"Peregrine M. McGehee" <[email protected]> · Thu, 06 Dec 2001 13:06:22 -0700

At the Sloan Digital Sky Survey we are moving the timestamp
formats for all observing software (both EPICS and non-EPICS)
to that of ISO 8601 (http://www.w3.org/TR/NOTE-datetime).

I propose adding an option TS_TEXT_ISO to base/src/libCom/tsSubr.c:tsStampToText(). Lines beginning with
an asterisk are copied from the R3.13.5 source code.

* 	The required size of the caller's text buffer depends on the type
*       of conversion being requested.  The conversion types, buffer sizes,
*       and conversion formats are:
*
*       TS_TEXT_MONDDYYYY  32   Mon dd, yyyy hh:mm:ss.nano-secs
*       TS_TEXT_MMDDYY     28   mm/dd/yy hh:mm:ss.nano-secs      

	TS_TEXT_ISO	   36   YYYY-MM-DDThh:mm:ss.nano-secsTZD 

	(eg 1997-07-16T19:20:30.123456789+01:00)	
where:

     YYYY = four-digit year
     MM   = two-digit month (01=January, etc.)
     DD   = two-digit day of month (01 through 31)
     hh   = two digits of hour (00 through 23) (am/pm NOT allowed)
     mm   = two digits of minute (00 through 59)
     ss   = two digits of second (00 through 59)
     nano-secs    =  digits representing a decimal fraction of a second
     TZD  = time zone designator (Z or +hh:mm or -hh:mm)

* 	For any of the formats, the fractional part of the time (represented
*       as `nano-secs' above) is variable length.  If the usec and nsec part
*       of the time are both zero, only milli-seconds will be printed; or
*       else if the nsec part is zero, only milli-seconds and micro-seconds
*       will be printed.

Aloha,
	Peregrine
-- 
Peregrine M. McGehee	[email protected]	(505) 667-3273
Sloan Digital Sky Survey / Spallation Neutron Source
MS H820, Los Alamos National Laboratory, Los Alamos, NM 87545

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System