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2006-11-15 Joel Sherrill <joel.sherrill@oarcorp.com>

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* posix/Makefile.am: Add file missed in previous commit.
	* posix/src/posixtimespecabsolutetimeout.c: New file.
This commit is contained in:
Joel Sherrill
2006-11-15 15:34:45 +00:00
parent aa4369c1b5
commit ba16717a62
3 changed files with 78 additions and 3 deletions
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5
cpukit/ChangeLog
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@@ -1,3 +1,8 @@
2006-11-15 Joel Sherrill <joel.sherrill@oarcorp.com>
* posix/Makefile.am: Add file missed in previous commit.
* posix/src/posixtimespecabsolutetimeout.c: New file.
2006-11-15 Ralf Corsépius <ralf.corsepius@rtems.org>
* configure.ac: Remove RTEMS_AMPOLISH3.

7
cpukit/posix/Makefile.am
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@@ -146,9 +146,10 @@ libposix_a_SOURCES += src/pspin.c src/pspindestroy.c src/pspininit.c \
## TIME_C_FILES
libposix_a_SOURCES += src/adjtime.c src/time.c src/posixtimespecsubtract.c \
src/posixtimespectointerval.c src/posixintervaltotimespec.c \
src/clockgetcpuclockid.c src/clockgetenableattr.c src/clockgetres.c \
src/clockgettime.c src/clocksetenableattr.c src/clocksettime.c \
src/nanosleep.c src/sleep.c src/usleep.c
src/posixtimespecabsolutetimeout.c src/clockgetcpuclockid.c \
src/clockgetenableattr.c src/clockgetres.c src/clockgettime.c \
src/clocksetenableattr.c src/clocksettime.c src/nanosleep.c src/sleep.c \
src/usleep.c
# the timer manager needs to be split further but only after its
# dependence on the Classic API Timer Manager is removed.

69
cpukit/posix/src/posixtimespecabsolutetimeout.c Normal file
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@@ -0,0 +1,69 @@
/*
* Convert abstime timeout to ticks
*
* $Id$
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdarg.h>
#include <errno.h>
#include <fcntl.h>
#include <pthread.h>
#include <semaphore.h>
#include <limits.h>
#include <rtems/system.h>
#include <rtems/score/object.h>
#include <rtems/posix/semaphore.h>
#include <rtems/posix/time.h>
#include <rtems/seterr.h>
/*
* The abstime is a walltime. We turn it into an interval.
*/
int _POSIX_Absolute_timeout_to_ticks(
const struct timespec *abstime,
Watchdog_Interval *ticks_out
)
{
struct timespec current_time;
struct timespec difference;
if ( !abstime )
return EINVAL;
/*
* Error check the absolute time to timeout
*/
#if 0
/* they are unsigned so this is impossible */
if ( abstime->tv_sec < 0 || abstime->tv_nsec < 0 )
return EINVAL;
#endif
if ( abstime->tv_nsec >= TOD_NANOSECONDS_PER_SECOND )
return EINVAL;
(void) clock_gettime( CLOCK_REALTIME, &current_time );
/*
* Make sure the abstime is in the future
*/
if ( abstime->tv_sec < current_time.tv_sec )
return EINVAL;
if ( (abstime->tv_sec == current_time.tv_sec) &&
(abstime->tv_nsec <= current_time.tv_nsec) )
return EINVAL;
_POSIX_Timespec_subtract( &current_time, abstime, &difference );
*ticks_out = _POSIX_Timespec_to_interval( &difference );
return 0;
}