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Use pause(2) to suspend timer ticking

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See #4 for discussion about waiting for signals, instead of incrementing
timecount with zero value.
This commit is contained in:
Simon Lieb 2016-10-20 00:24:09 +02:00 committed by Ivan Tham
parent 906a6caa13
commit 0af77c1282
1 changed files with 12 additions and 5 deletions
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17
spt.c
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@ -24,7 +24,7 @@ typedef struct {
#include "config.h"
static int i, timecount, inc;
static int i, timecount, suspend;
/* function declarations */
static void die(const char *errstr, ...);
@ -95,7 +95,8 @@ void
toggle(int sigint) {
if (signal(SIGUSR2, SIG_IGN) != SIG_IGN)
signal(SIGUSR2, toggle);
inc ^= 1;
suspend ^= 1;
}
void
@ -107,7 +108,7 @@ usage(void)
int
main(int argc, char *argv[])
{
inc = 1;
suspend = 0;
ARGBEGIN {
case 'e':
@ -131,8 +132,14 @@ main(int argc, char *argv[])
for (i = 0; ; i = (i + 1) % LEN(timers)) {
notify_send(timers[i].cmt);
for (timecount = 0; timecount < timers[i].tmr; timecount += inc)
sleep(1);
timecount = 0;
while (timecount < timers[i].tmr)
if (suspend)
pause();
else {
sleep(1);
timecount++;
}
}
return 0;