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Commit 711e3cac authored by Danilo Sabato's avatar Danilo Sabato Committed by Alessandro Rubini
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arch-bare-x86-64: timer precision increased

parent 158c7cd9
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Showing with 24 additions and 10 deletions
arch-bare-x86-64/bare-linux.h
View file @ 711e3cac
......@@ -36,6 +36,7 @@ extern int sys_shutdown(int fd, int flags);
extern int sys_gettimeofday(void *tv, void *z);
extern int sys_settimeofday(void *tv, void *z);
extern int sys_adjtimex(void *tv);
extern int sys_clock_gettime(int clock, void *t);
extern int bare_errno;
......@@ -81,6 +82,7 @@ struct bare_ethhdr {
struct bare_timeval {
unsigned long tv_sec;
unsigned long tv_usec;
unsigned long tv_nsec;
};
#ifndef NULL
......
arch-bare-x86-64/bare-timer.c
View file @ 711e3cac
......@@ -15,16 +15,19 @@ int bare_timer_init(struct pp_instance *ppi)
return 0;
}
int bare_timer_start(uint32_t interval, struct pp_timer *tm)
int bare_timer_start(uint32_t interval_ms, struct pp_timer *tm)
{
tm->start = (uint32_t)sys_time(0);
tm->interval = interval;
struct bare_timeval now;
sys_clock_gettime(CLOCK_MONOTONIC, &now);
tm->start = ((uint64_t)(now.tv_sec)) * 1000 +
(now.tv_nsec / 1000000);
tm->interval_ms = interval_ms;
return 0;
}
int bare_timer_stop(struct pp_timer *tm)
{
tm->interval = 0;
tm->interval_ms = 0;
tm->start = 0;
return 0;
......@@ -32,17 +35,20 @@ int bare_timer_stop(struct pp_timer *tm)
int bare_timer_expired(struct pp_timer *tm)
{
uint32_t now;
struct bare_timeval now;
uint64_t now_ms;
if (tm->start == 0) {
PP_PRINTF("%p Warning: bare_timer_expired: timer not started\n",tm);
return 0;
}
now = (uint32_t)sys_time(0);
sys_clock_gettime(CLOCK_MONOTONIC, &now);
now_ms = ((uint64_t)(now.tv_sec)) * 1000 +
(now.tv_nsec / 1000000);
if (tm->start + tm->interval <= (uint32_t)now) {
tm->start = (uint32_t)now;
if (now_ms > tm->start + tm->interval_ms) {
tm->start = now_ms;
return 1;
}
......@@ -51,17 +57,18 @@ int bare_timer_expired(struct pp_timer *tm)
void bare_timer_adjust_all(struct pp_instance *ppi, int32_t diff)
{
int i;
/* int i;
for (i = 0; i < PP_TIMER_ARRAY_SIZE; i++) {
ppi->timers[i]->start += diff;
}
*/
}
int pp_timer_init(struct pp_instance *ppi)
__attribute__((alias("bare_timer_init")));
int pp_timer_start(uint32_t interval, struct pp_timer *tm)
int pp_timer_start(uint32_t interval_ms, struct pp_timer *tm)
__attribute__((alias("bare_timer_start")));
int pp_timer_stop(struct pp_timer *tm)
......
arch-bare-x86-64/syscalls.c
View file @ 711e3cac
......@@ -128,3 +128,8 @@ int sys_adjtimex(void *tv)
return syscall(__NR_adjtimex, (uint64_t)tv, 0,
0, 0, 0, 0);
}
int sys_clock_gettime(int clock, void *t)
{
return syscall(__NR_clock_gettime, (uint64_t)clock, (uint64_t)t,
0, 0, 0, 0);
}
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