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ptp: Fix example program to match kernel.

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Ever since commit 3a06c7ac24 ("posix-clocks: Remove interval timer
facility and mmap/fasync callbacks") the possibility of PHC based
posix timers has been removed.  In addition it will probably never
make sense to implement this functionality.

This patch removes the misleading example code which seems to suggest
that posix timers for PHC devices will ever be a thing.

Signed-off-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Richard Cochran 2019-05-19 22:15:05 -07:00 committed by David S. Miller
parent d97c6f6830
commit e3d8e588c7
1 changed files with 1 additions and 84 deletions
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85
tools/testing/selftests/ptp/testptp.c
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@ -63,30 +63,6 @@ static clockid_t get_clockid(int fd)
return (((unsigned int) ~fd) << 3) | CLOCKFD;
}
static void handle_alarm(int s)
{
printf("received signal %d\n", s);
}
static int install_handler(int signum, void (*handler)(int))
{
struct sigaction action;
sigset_t mask;
/* Unblock the signal. */
sigemptyset(&mask);
sigaddset(&mask, signum);
sigprocmask(SIG_UNBLOCK, &mask, NULL);
/* Install the signal handler. */
action.sa_handler = handler;
action.sa_flags = 0;
sigemptyset(&action.sa_mask);
sigaction(signum, &action, NULL);
return 0;
}
static long ppb_to_scaled_ppm(int ppb)
{
/*
@ -112,8 +88,6 @@ static void usage(char *progname)
{
fprintf(stderr,
"usage: %s [options]\n"
" -a val request a one-shot alarm after 'val' seconds\n"
" -A val request a periodic alarm every 'val' seconds\n"
" -c query the ptp clock's capabilities\n"
" -d name device to open\n"
" -e val read 'val' external time stamp events\n"
@ -148,15 +122,9 @@ int main(int argc, char *argv[])
struct ptp_pin_desc desc;
struct timespec ts;
struct timex tx;
static timer_t timerid;
struct itimerspec timeout;
struct sigevent sigevent;
struct ptp_clock_time *pct;
struct ptp_sys_offset *sysoff;
char *progname;
unsigned int i;
int c, cnt, fd;
@ -170,10 +138,8 @@ int main(int argc, char *argv[])
int gettime = 0;
int index = 0;
int list_pins = 0;
int oneshot = 0;
int pct_offset = 0;
int n_samples = 0;
int periodic = 0;
int perout = -1;
int pin_index = -1, pin_func;
int pps = -1;
@ -185,14 +151,8 @@ int main(int argc, char *argv[])
progname = strrchr(argv[0], '/');
progname = progname ? 1+progname : argv[0];
while (EOF != (c = getopt(argc, argv, "a:A:cd:e:f:ghi:k:lL:p:P:sSt:T:v"))) {
while (EOF != (c = getopt(argc, argv, "cd:e:f:ghi:k:lL:p:P:sSt:T:v"))) {
switch (c) {
case 'a':
oneshot = atoi(optarg);
break;
case 'A':
periodic = atoi(optarg);
break;
case 'c':
capabilities = 1;
break;
@ -393,49 +353,6 @@ int main(int argc, char *argv[])
}
}
if (oneshot) {
install_handler(SIGALRM, handle_alarm);
/* Create a timer. */
sigevent.sigev_notify = SIGEV_SIGNAL;
sigevent.sigev_signo = SIGALRM;
if (timer_create(clkid, &sigevent, &timerid)) {
perror("timer_create");
return -1;
}
/* Start the timer. */
memset(&timeout, 0, sizeof(timeout));
timeout.it_value.tv_sec = oneshot;
if (timer_settime(timerid, 0, &timeout, NULL)) {
perror("timer_settime");
return -1;
}
pause();
timer_delete(timerid);
}
if (periodic) {
install_handler(SIGALRM, handle_alarm);
/* Create a timer. */
sigevent.sigev_notify = SIGEV_SIGNAL;
sigevent.sigev_signo = SIGALRM;
if (timer_create(clkid, &sigevent, &timerid)) {
perror("timer_create");
return -1;
}
/* Start the timer. */
memset(&timeout, 0, sizeof(timeout));
timeout.it_interval.tv_sec = periodic;
timeout.it_value.tv_sec = periodic;
if (timer_settime(timerid, 0, &timeout, NULL)) {
perror("timer_settime");
return -1;
}
while (1) {
pause();
}
timer_delete(timerid);
}
if (perout >= 0) {
if (clock_gettime(clkid, &ts)) {
perror("clock_gettime");