fiss

Friedel's Initialization and Service Supervision
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stop.c (1060B)

      1 #include "service.h"
      2 #include "util.h"
      3 
      4 #include <errno.h>
      5 #include <limits.h>
      6 #include <signal.h>
      7 #include <stdio.h>
      8 #include <string.h>
      9 #include <unistd.h>
     10 
     11 
     12 void service_stop(struct service* s) {
     13 	switch (s->state) {
     14 		case STATE_ACTIVE_DUMMY:
     15 			service_handle_exit(s, false, 0);
     16 			break;
     17 		case STATE_ACTIVE_BACKGROUND:
     18 			if ((s->pid = fork_dup_cd_exec(s->dir, "./stop", null_fd, null_fd, null_fd)) == -1) {
     19 				fprint(1, "error: cannot execute ./stop: %r\n");
     20 				service_update_state(s, STATE_INACTIVE);
     21 			} else {
     22 				service_update_state(s, STATE_STOPPING);
     23 			}
     24 			break;
     25 		case STATE_ACTIVE_FOREGROUND:
     26 		case STATE_SETUP:
     27 		case STATE_STARTING:
     28 		case STATE_STOPPING:
     29 		case STATE_FINISHING:
     30 			s->stop_timeout = time(NULL);
     31 			kill(s->pid, SIGTERM);
     32 			service_update_state(s, -1);
     33 			break;
     34 		case STATE_DONE:
     35 			s->state = STATE_INACTIVE;
     36 		case STATE_INACTIVE:
     37 		case STATE_ERROR:
     38 			break;
     39 	}
     40 }
     41 
     42 void service_kill(struct service* s, int signal) {
     43 	if (!s->pid)
     44 		return;
     45 
     46 	if (s->state == STATE_ACTIVE_FOREGROUND)
     47 		kill(s->pid, signal);
     48 }