PR_Now 编辑

Returns the current time.

Syntax

#include <prtime.h>

/wiki/en-US/docs/Mozilla/Projects/NSPR/Reference/PRTime PR_Now(void);

Parameters

None.

Returns

The current time as a /wiki/en-US/docs/Mozilla/Projects/NSPR/Reference/PRTime value.

Description

PR_Now() returns the current time as number of microseconds since the NSPR epoch, which is midnight (00:00:00) 1 January 1970 UTC.

You cannot assume that the values returned by PR_Now() are monotonically increasing because the system clock of the computer may be reset. To obtain monotonically increasing time stamps suitable for measuring elapsed time, use /wiki/en-US/docs/Mozilla/Projects/NSPR/Reference/PR_IntervalNow().