You've already forked gitified_old_clb_svn
95 lines
2.3 KiB
C
95 lines
2.3 KiB
C
/*
|
|
* Alessandro Rubini for CERN, 2013 -- LGPL 2.1 or later
|
|
*/
|
|
#include <ppsi/ppsi.h>
|
|
#include "bare-linux.h"
|
|
|
|
static int bare_time_get(struct pp_instance *ppi, TimeInternal *t)
|
|
{
|
|
struct bare_timeval tv;
|
|
|
|
if (sys_gettimeofday(&tv, NULL) < 0) {
|
|
pp_error("%s:", __func__);
|
|
sys_exit(1);
|
|
}
|
|
t->seconds = tv.tv_sec;
|
|
t->nanoseconds = tv.tv_usec * 1000;
|
|
if (!(pp_global_flags & PP_FLAG_NOTIMELOG))
|
|
pp_diag(ppi, time, 2, "%s: %9li.%06li\n", __func__,
|
|
tv.tv_sec, tv.tv_usec);
|
|
return 0;
|
|
}
|
|
|
|
static int bare_time_set(struct pp_instance *ppi, TimeInternal *t)
|
|
{
|
|
struct bare_timeval tv;
|
|
|
|
tv.tv_sec = t->seconds;
|
|
tv.tv_usec = t->nanoseconds / 1000;
|
|
|
|
if (sys_settimeofday(&tv, NULL) < 0) {
|
|
pp_error("%s:", __func__);
|
|
sys_exit(1);
|
|
}
|
|
pp_diag(ppi, time, 1, "%s: %9li.%06li\n", __func__, tv.tv_sec,
|
|
tv.tv_usec);
|
|
return 0;
|
|
}
|
|
|
|
static int bare_time_adjust(struct pp_instance *ppi, long offset_ns,
|
|
long freq_ppm)
|
|
{
|
|
struct bare_timex t;
|
|
int ret;
|
|
|
|
/* FIXME: handle MOD_FREQUENCY and MOD_OFFSET separately, and
|
|
* set t.modes only for the mode having non-zero parameter.
|
|
* See posix_time_adjust in arch-gnu-linux/posix-time.c */
|
|
if (freq_ppm > PP_ADJ_FREQ_MAX)
|
|
freq_ppm = PP_ADJ_FREQ_MAX;
|
|
if (freq_ppm < -PP_ADJ_FREQ_MAX)
|
|
freq_ppm = -PP_ADJ_FREQ_MAX;
|
|
|
|
t.offset = offset_ns / 1000;
|
|
t.freq = freq_ppm; /* was: "adj * ((1 << 16) / 1000)" */
|
|
t.modes = MOD_FREQUENCY | MOD_OFFSET;
|
|
|
|
ret = sys_adjtimex(&t);
|
|
pp_diag(ppi, time, 1, "%s: %li %li\n", __func__, offset_ns, freq_ppm);
|
|
return ret;
|
|
}
|
|
|
|
int bare_time_adjust_offset(struct pp_instance *ppi, long offset_ns)
|
|
{
|
|
return bare_time_adjust(ppi, offset_ns, 0);
|
|
}
|
|
|
|
int bare_time_adjust_freq(struct pp_instance *ppi, long freq_ppm)
|
|
{
|
|
return bare_time_adjust(ppi, 0, freq_ppm);
|
|
}
|
|
|
|
static unsigned long bare_calc_timeout(struct pp_instance *ppi, int millisec)
|
|
{
|
|
struct bare_timespec now;
|
|
uint64_t now_ms;
|
|
unsigned long result;
|
|
|
|
if (!millisec)
|
|
millisec = 1;
|
|
sys_clock_gettime(CLOCK_MONOTONIC, &now);
|
|
now_ms = 1000LL * now.tv_sec + now.tv_nsec / 1000 / 1000;
|
|
|
|
result = now_ms + millisec;
|
|
return result ? result : 1; /* cannot return 0 */
|
|
}
|
|
|
|
struct pp_time_operations bare_time_ops = {
|
|
.get = bare_time_get,
|
|
.set = bare_time_set,
|
|
.adjust = bare_time_adjust,
|
|
.adjust_offset = bare_time_adjust_offset,
|
|
.adjust_freq = bare_time_adjust_freq,
|
|
.calc_timeout = bare_calc_timeout,
|
|
};
|