blob: b431f7ae5609eb88ee482b32ce194e8f328ca0f0 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
|
/*
FUNCTION
<<time>>---get current calendar time (as single number)
INDEX
time
SYNOPSIS
#include <time.h>
time_t time(time_t *<[t]>);
DESCRIPTION
<<time>> looks up the best available representation of the current
time and returns it, encoded as a <<time_t>>. It stores the same
value at <[t]> unless the argument is <<NULL>>.
RETURNS
A <<-1>> result means the current time is not available; otherwise the
result represents the current time.
PORTABILITY
ANSI C requires <<time>>.
Supporting OS subroutine required: Some implementations require
<<gettimeofday>>.
*/
/* Most times we have a system call in newlib/libc/sys/.. to do this job */
#include <_ansi.h>
#include <reent.h>
#include <sys/types.h>
#include <sys/time.h>
time_t
time (time_t * t)
{
struct timeval now;
now.tv_sec = (time_t) -1;
if (_gettimeofday_r (_REENT, &now, NULL) < 0)
now.tv_sec = (time_t) -1;
if (t)
*t = now.tv_sec;
return now.tv_sec;
}
|
