CLOK cookie and Tgettimeofday()

[Jerry Geiger <jerry@zedat.fu-berlin.de>]

1. For no one protested I think the CLOK cookie should be added to the 
`official' list of cookies.

cookie 'CLOK': describe kernel time, if it doesn't exist a value of 0L
               is assumed!
description of it's value:
        &xff000000   bitfield
        &x00ffffff   offset from UTC in seconds (+/- 12h)
                     (if & 0x00800000 it is a negative value!)
    bitfield:
    00000011
        00000000   kernel time is LMT including DST (needs TZ variable)
	00000001   kernel time is LMT without DST  (TZ variable recom.)
        00000010   kernel time is UTC  (TZ variable recom.)

    00110000
        00010000   kernel supports Tgettimeofday() call
        00110000   Tgettimeofday() call returns valid tzp structure

    00001100       reserved for real time resulotion in tv_usec
	00000000   5ms 
	
        CLOCK_IS_UTC    (2L<<24)    kernel time is UTC time
        CLOCK_IS_LMT    (1L<<24)    kernel time is LocalMeanTime
     
        OS_HAS_TgetTOD  (16L<<24)   kernel supports Tgettimeofday() call
	TgetTOD_HAS_TZP	(32L<<24)   only valid if OS_HAS_TgetTOD


----
2. About Tgettimeofday() etc:

If the defined opcodes are still unused please reserve them for the named
functions, and add the lines to mintbind.h.

If not please tell me some opcodes I can use for these functions -- in a
reasonable time.

#define Tgettimeofday(tvp, tzp)  \
		trap_1_wll(0x155, (long)(tvp), (long)(tzp))
#define Tsettimeofday(tvp, tzp)  \
		trap_1_wll(0x156, (long)(tvp), (long)(tzp))
#define Tadjtime(delta, olddelta)  \
		trap_1_wll(0x157, (long)(delta), (long)(olddelta))

retrun values: 0 success or both pointers are NULL, ERROR,
	EINVFN, EACCDN (settime, adjtime & not root), ERANGE


  jerry
        jerry@merlin.abacus.de          jerry@zedat.fu-berlin.de