summaryrefslogtreecommitdiffstats
path: root/cpukit/posix/src/adjtime.c
diff options
context:
space:
mode:
Diffstat (limited to 'cpukit/posix/src/adjtime.c')
-rw-r--r--cpukit/posix/src/adjtime.c89
1 files changed, 0 insertions, 89 deletions
diff --git a/cpukit/posix/src/adjtime.c b/cpukit/posix/src/adjtime.c
deleted file mode 100644
index ab61693f19..0000000000
--- a/cpukit/posix/src/adjtime.c
+++ /dev/null
@@ -1,89 +0,0 @@
-/**
- * @file
- *
- * @brief Adjust the Time to Synchronize the System Clock
- * @ingroup POSIXAPI
- */
-
-/*
- * COPYRIGHT (c) 1989-2014.
- * On-Line Applications Research Corporation (OAR).
- *
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://www.rtems.org/license/LICENSE.
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#define _BSD_SOURCE
-#include <time.h>
-#include <sys/time.h>
-#include <errno.h>
-
-#include <rtems/score/timespec.h>
-#include <rtems/score/threaddispatch.h>
-#include <rtems/score/todimpl.h>
-#include <rtems/config.h>
-#include <rtems/seterr.h>
-
-/**
- * This method was initially added as part of porting NTP to RTEMS.
- * It is a BSD compatability function and now is available on
- * GNU/Linux.
- *
- * At one point there was a static variable named adjustment
- * used by this implementation. I don't see any reason for it
- * to be here based upon the GNU/Linux documentation.
- */
-int adjtime(
- const struct timeval *delta,
- struct timeval *olddelta
-)
-{
- struct timespec delta_as_timespec;
-
- /*
- * Simple validations
- */
- if ( !delta )
- rtems_set_errno_and_return_minus_one( EINVAL );
-
- if ( delta->tv_usec >= TOD_MICROSECONDS_PER_SECOND )
- rtems_set_errno_and_return_minus_one( EINVAL );
-
- /*
- * An adjustment of zero is pretty easy.
- */
- if ( delta->tv_sec == 0 && delta->tv_usec == 0 )
- return 0;
-
- /*
- * Currently, RTEMS does the adjustment in one movement so there
- * is no way an adjustment was currently underway.
- *
- * Given interest, requirements, and sponsorship, a future
- * enhancement would be to adjust the time in smaller increments
- * at each clock tick. Until then, there is no outstanding
- * adjustment.
- */
- if ( olddelta ) {
- olddelta->tv_sec = 0;
- olddelta->tv_usec = 0;
- }
-
- /*
- * convert delta timeval to timespec
- */
- delta_as_timespec.tv_sec = delta->tv_sec;
- delta_as_timespec.tv_nsec = delta->tv_usec * 1000;
-
- /*
- * Now apply the adjustment
- */
- _TOD_Adjust( &delta_as_timespec );
-
- return 0;
-}