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Implemented pause/resume on SIGUSR2

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Antonio Bibiano 2016-07-12 18:51:26 +10:00 committed by Ivan Tham
parent 8e7bd4d2aa
commit 938cd77b94
1 changed files with 15 additions and 3 deletions
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18
spt.c
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@ -24,13 +24,14 @@ typedef struct {
#include "config.h" #include "config.h"
static int i, timecount; static int i, timecount, inc;
/* function declarations */ /* function declarations */
static void die(const char *errstr, ...); static void die(const char *errstr, ...);
static void spawn(char *cmd, char *cmt); static void spawn(char *cmd, char *cmt);
static void notify_send(char *cmt); static void notify_send(char *cmt);
static void remaining_time(int sigint); static void remaining_time(int sigint);
static void toggle(int sigint);
static void usage(void); static void usage(void);
/* functions implementations */ /* functions implementations */
@ -90,6 +91,13 @@ remaining_time(int sigint)
notify_send(buf); notify_send(buf);
} }
void
toggle(int sigint) {
if (signal(SIGUSR2, SIG_IGN) != SIG_IGN)
signal(SIGUSR2, toggle);
inc ^= 1;
}
void void
usage(void) usage(void)
{ {
@ -99,6 +107,8 @@ usage(void)
int int
main(int argc, char *argv[]) main(int argc, char *argv[])
{ {
inc = 1;
ARGBEGIN { ARGBEGIN {
case 'e': case 'e':
notifyext = EARGF(usage()); notifyext = EARGF(usage());
@ -116,14 +126,16 @@ main(int argc, char *argv[])
if (signal(SIGUSR1, SIG_IGN) != SIG_IGN) if (signal(SIGUSR1, SIG_IGN) != SIG_IGN)
signal(SIGUSR1, remaining_time); signal(SIGUSR1, remaining_time);
if (signal(SIGUSR2, SIG_IGN) != SIG_IGN)
signal(SIGUSR2, toggle);
run: run:
notify_send(timers[i].cmt); notify_send(timers[i].cmt);
for (timecount = 0; timecount < timers[i].tmr; timecount++) for (timecount = 0; timecount < timers[i].tmr; timecount += inc)
sleep(1); sleep(1);
i < LEN(timers) ? i++ : i = 0; /* i infinal loop */ i = (i < LEN(timers)) ? i+1 : 0; /* i infinal loop */
goto run; goto run;
return 0; return 0;