Sistemi operativi - Syscall gettimeofday

Gettimeofday

The Single UNIX ® Specification, Version 2

Copyright © 1997 The Open Group

Name

Gettimeofday - get the date and time

Synopsis

#include <sys/time.h>
int gettimeofday(struct timeval *tp, void *tzp);

Description

The gettimeofday() function obtains the current time, expressed as seconds and microseconds since 00:00 Coordinated Universal Time (UTC), January 1, 1970, and stores it in the timeval structure pointed to by tp. The resolution of the system clock is unspecified. If tzp is not a null pointer, the behaviour is unspecified.

Return value

The gettimeofday() function returns 0 and no value is reserved to indicate an error.

Errors

No errors are defined.

Examples

None.

Application usage

None.

Future directions

None.

See also

ctime(), ftime(), <sys/time.h>.

UNIX ® is a registered Trademark of The Open Group.

Copyright © 1997 The Open Group

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