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oocSysClock now don't use C calls, but use Unix.Mod instead.

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Unix.Mod modified, Gettimeofday now returns value.
Kernel.Mod modified in order to conform to Unix.Mod new interface


Former-commit-id: 13da72a3ac
This commit is contained in:
Norayr Chilingarian 2013-10-30 19:55:27 +04:00
parent 8b8f4591be
commit ad9eb05779
8 changed files with 30 additions and 48 deletions
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62
src/lib/ooc/gnuc/oocSysClock.Mod → src/lib/ooc/oocSysClock.Mod
View file

@ -1,25 +1,5 @@
(* $Id: SysClock.Mod,v 1.7 1999/09/02 13:42:24 acken Exp $ *)
MODULE oocSysClock(* [FOREIGN "C"; LINK FILE "SysClock.c" END]*);
IMPORT SYSTEM;
(* SysClock - facilities for accessing a system clock that records the
date and time of day.
Copyright (C) 1996-1998 Michael Griebling
This module is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
This module is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*)
(*<* Warnings := FALSE *>*)
MODULE oocSysClock;
IMPORT Unix;
CONST
maxSecondParts* = 999; (* Most systems have just millisecond accuracy *)
@ -65,19 +45,15 @@ TYPE
inactive. *)
END;
PROCEDURE -includeTime()
"#include <time.h>";
PROCEDURE -includeiSysTime()
"#include <sys/time.h>";
PROCEDURE -cangetclock() : BOOLEAN
"struct timeval t; return (BOOLEAN)(gettimeofday(&t, NULL) == 0);";
(*
PROCEDURE CanGetClock*(): BOOLEAN;
(* Returns TRUE if a system clock can be read; FALSE otherwise. *)
*)
VAR timeval: Unix.Timeval; timezone: Unix.Timezone;
l : LONGINT;
BEGIN
l := Unix.Gettimeofday(timeval, timezone);
IF l = 0 THEN RETURN TRUE ELSE RETURN FALSE END
END CanGetClock;
(*
PROCEDURE CanSetClock*(): BOOLEAN;
(* Returns TRUE if a system clock can be set; FALSE otherwise. *)
@ -87,11 +63,8 @@ PROCEDURE IsValidDateTime* (d: DateTime): BOOLEAN;
(* Returns TRUE if the value of `d' represents a valid date and time;
FALSE otherwise. *)
*)
(*
PROCEDURE GetClock* (VAR userData: DateTime);
(* If possible, assigns system date and time of day to `userData' (i.e.,
the local time is returned). Error returns 1 Jan 1970. *)
*)
(*
PROCEDURE SetClock* (userData: DateTime);
(* If possible, sets the system clock to the values of `userData'. *)
@ -115,16 +88,23 @@ PROCEDURE MakeLocalTime * (VAR c: DateTime);
whether DST or normal time zone will be chosen. *)
*)
PROCEDURE -gtod(VAR sec, usec : LONGINT)
" struct timeval tval; int res; res = gettimeofday(&tval, NULL); if (!res) { *sec = tval.tv_sec; *usec = tval.tv_usec; return 0; } else {*sec = 0; *usec = 0; return -1; }";
PROCEDURE GetTimeOfDay* (VAR sec, usec: LONGINT): LONGINT;
(* PRIVAT. Don't use this. Take Time.GetTime instead.
Equivalent to the C function `gettimeofday'. The return value is `0' on
success and `-1' on failure; in the latter case `sec' and `usec' are set to
zero. *)
VAR timeval: Unix.Timeval; timezone: Unix.Timezone;
l : LONGINT;
BEGIN
gtod (sec, usec);
l := Unix.Gettimeofday (timeval, timezone);
IF l = 0 THEN
sec := timeval.sec;
usec := timeval.usec;
ELSE
sec := 0;
usec := 0;
END;
RETURN l;
END GetTimeOfDay;
END oocSysClock.