/* time.c
*
*/
#include <time.h>
#include <rtems/score/tod.h>
/*
* Seconds from January 1, 1970 to January 1, 1988. Used to account for
* differences between POSIX API and RTEMS core.
*/
#define POSIX_TIME_SECONDS_1970_THROUGH_1988 \
(((1987 - 1970 + 1) * TOD_SECONDS_PER_NON_LEAP_YEAR) + \
(4 * TOD_SECONDS_PER_DAY))
/*
* 4.5.1 Get System Time, P1003.1b-1993, p. 91
*/
time_t time(
time_t *tloc
)
{
time_t seconds_since_epoch;
if ( !_TOD_Is_set() ) {
/* XXX set errno */
return -1;
}
/*
* Internally the RTEMS epoch is 1988. This must be taken into account.
*/
seconds_since_epoch = _TOD_Seconds_since_epoch;
seconds_since_epoch += POSIX_TIME_SECONDS_1970_THROUGH_1988;
if ( tloc )
*tloc = seconds_since_epoch;
return seconds_since_epoch;
}
#ifdef NOT_IMPLEMENTED_YET
/*
* 14.2.1 Clocks, P1003.1b-1993, p. 263
*/
int clock_settime(
clockid_t clock_id,
const struct timespec *tp
)
{
return POSIX_NOT_IMPLEMENTED();
}
/*
* 14.2.1 Clocks, P1003.1b-1993, p. 263
*/
int clock_gettime(
clockid_t clock_id,
struct timespec *tp
)
{
return POSIX_NOT_IMPLEMENTED();
}
/*
* 14.2.1 Clocks, P1003.1b-1993, p. 263
*/
int clock_getres(
clockid_t clock_id,
struct timespec *res
)
{
return POSIX_NOT_IMPLEMENTED();
}
/*
* 14.2.2 Create a Per-Process Timer, P1003.1b-1993, p. 264
*/
int timer_create(
clockid_t clock_id,
struct sigevent *evp,
timer_t *timerid
)
{
return POSIX_NOT_IMPLEMENTED();
}
/*
* 14.2.3 Delete a Per_process Timer, P1003.1b-1993, p. 266
*/
int timer_delete(
timer_t timerid
)
{
return POSIX_NOT_IMPLEMENTED();
}
/*
* 14.2.4 Per-Process Timers, P1003.1b-1993, p. 267
*/
int timer_settime(
timer_t timerid,
int flags,
const struct itimerspec *value,
struct itimerspec *ovalue
)
{
return POSIX_NOT_IMPLEMENTED();
}
/*
* 14.2.4 Per-Process Timers, P1003.1b-1993, p. 267
*/
int timer_gettime(
timer_t timerid,
struct itimerspec *value
)
{
return POSIX_NOT_IMPLEMENTED();
}
/*
* 14.2.4 Per-Process Timers, P1003.1b-1993, p. 267
*/
int timer_getoverrun(
timer_t timerid
)
{
return POSIX_NOT_IMPLEMENTED();
}
/*
* 14.2.5 High Resolution Sleep, P1003.1b-1993, p. 269
*/
int nanosleep(
const struct timespec *rqtp,
struct timespec *rmtp
)
{
return POSIX_NOT_IMPLEMENTED();
}
/*
* 20.1.3 Accessing a Process CPU-time CLock, P1003.4b/D8, p. 55
*/
int clock_getcpuclockid(
pid_t pid,
clockid_t *clock_id
)
{
return POSIX_NOT_IMPLEMENTED();
}
/*
* 20.1.5 CPU-time Clock Attribute Access, P1003.4b/D8, p. 58
*/
int clock_setenable_attr(
clockid_t clock_id,
int attr
)
{
return POSIX_NOT_IMPLEMENTED();
}
/*
* 20.1.5 CPU-time Clock Attribute Access, P1003.4b/D8, p. 58
*/
int clock_getenable_attr(
clockid_t clock_id,
int *attr
)
{
return POSIX_NOT_IMPLEMENTED();
}
#endif
