taia_now(3) Library Functions Manual taia_now(3)NAME
taia_now - get current time
SYNTAX
#include <taia.h>
extern int taia_now(struct taia* t);
DESCRIPTION
taia_now puts the current time into t. More precisely: tai_now puts into t its best guess as to the TAI64NA label for the 1-attosecond
interval that contains the current time.
This implementation of taia_now assumes that the time_t returned from the time function represents the number of TAI seconds since
1970-01-01 00:00:10 TAI. This matches the convention used by the Olson tz library in ``right'' mode.
Beware that many clocks are not set accurately, and even the best scientific clocks are nowhere near 1-attosecond accuracy; however, an
inaccurate clock may still produce reasonably accurate time differences.
SEE ALSO tai_now(3)taia_now(3)
Check Out this Related Man Page
tai64n(8) System Manager's Manual tai64n(8)NAME
tai64n - puts a precise timestamp on each line.
SYNOPSIS
tai64n
DESCRIPTION
tai64n reads lines from stdin. For each line, it writes
1 an @,
2. a precise timestamp,
3. a space, and
4. a copy of the input line
to stdout. The timestamp indicates the moment that tai64n read the first character of the line.
tai64n does not allocate any memory after it starts.
TIMESTAMPS
Timestamps used by tai64n are 12-byte TAI64N labels in external TAI64N format, printed as 24 lowercase hexadecimal characters. You can use
tai64nlocal(8) to convert the timestamps to a human-readable format.
For example, the timestamp 4000000037c219bf2ef02e94 refers to the nanosecond beginning exactly 935467455.787492500 seconds after the begin-
ning of 1970 TAI; 37c219bf hexadecimal is 935467455, and 2ef02e94 hexadecimal is 787492500.
The current implementation of tai64n relies on the UNIX gettimeofday library routine to return the current time as the number of TAI sec-
onds since 1970-01-01 00:00:10 TAI. Beware that most gettimeofday implementations are not Y2038-compliant. Furthermore, most clocks are not
set accurately.
EXIT CODES
tai64n exits 0 when it sees end of input. It exits 111 without an error message if it has trouble reading stdin or writing stdout.
SEE ALSO supervise(8), svc(8), svok(8), svstat(8), svscanboot(8), svscan(8), readproctitle(8), fghack(8), pgrphack(8), multilog(8), tai64nlocal(8),
setuidgid(8), envuidgid(8), envdir(8), softlimit(8), setlock(8)
http://cr.yp.to/daemontools.html
tai64n(8)