Fix lrt dependency

testTimer/Makefile

@@ -3,5 +3,6 @@ NO_OBJ=
 SRCS= timerTest.c
 LDADD= ${LIBRT}
 CFLAGS= -O2
+LDFLAGS=-lrt
 MAN= 
 .include <bsd.prog.mk>

testTimer/timerTest.c

@@ -6,6 +6,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <err.h>
+#include <sys/file.h>
 
 /*
  * signal and timer example
@@ -35,65 +36,68 @@ struct entry {
 
 static int spankme;
 
-void
+	void
 sigHandler(int signo, siginfo_t * si, void * /* ucontext_t */ uap)
 {
 	switch (signo) {
-	case SIGALRM:
-		/* timer timeout */
-		SLIST_FOREACH(np, &head, entries) {
-			if (np && np->code == si->si_value.sival_int) {
-				printf("%s", np->name);
-				fflush(stdout);
-				break;
+		case SIGALRM:
+			/* timer timeout */
+			SLIST_FOREACH(np, &head, entries) {
+				if (np && np->code == si->si_value.sival_int) {
+					flock(1, LOCK_EX);
+					printf("%s", np->name);
+					fflush(stdout);
+					flock(1, LOCK_UN);
+					break;
+				}
 			}
-		}
-		if (np == NULL)
-			printf("Timeout #%d, unknown.\n", si->si_value.sival_int);
-		break;
-	case SIGINFO:
-		printf("no need to panic.\n");
-		break;
-	case SIGINT:
-		/* exit flag */
-		++spankme;
-		break;
-	default:
-		printf("sig:%di received.", signo);
-		break;
+			if (np == NULL)
+				printf("Timeout #%d, unknown.\n", si->si_value.sival_int);
+			break;
+		case SIGINFO:
+			printf("no need to panic.\n");
+			break;
+		case SIGINT:
+			/* exit flag */
+			++spankme;
+			break;
+		default:
+			printf("sig:%d received.", signo);
+			break;
 	}
 
 }
 
-int
+	int
 main(int argc, char *argv[])
 {
 	SLIST_INIT(&head);
 
 	/* timer pointers */
-	size_t nb_timers=0;
+	size_t nb_timers = 5;
+
 	if(argc>1){
-		nb_timers=atoi(argv[1]);
+		nb_timers = atoi(argv[1]);
 	}
 
 	if(nb_timers<1){
-		nb_timers=5;
+		fprintf(stderr,"Invalid timer number.\n");
+		abort();
 	}
 
-	timer_t		timerid[nb_timers];
-	char       *names[nb_timers];
-	
+	timer_t	timerid[nb_timers];
+	char    *names[nb_timers];
 
 	/* build text to display for each */
-	for(size_t i=0;i<nb_timers;++i){
+	for(size_t i = 0; i < nb_timers; ++i) {
 
-		names[i]=malloc(MAX_LEN_NAME);
-		if(i==0){
+		names[i] = malloc(MAX_LEN_NAME);
+		if (i == 0) {
 			strncpy(names[i],".",MAX_LEN_NAME);
 			continue;
 		}
-		if(MAX_LEN_NAME<=snprintf(names[i],MAX_LEN_NAME,"+%zu+",i*2+1)){
-			warnx("string %zu shorten",i);
+		if (MAX_LEN_NAME <= snprintf(names[i], MAX_LEN_NAME, "+%zu+", i * 2 + 1)) {
+			warnx("string %zu shorten", i);
 		}
 	}
 
@@ -120,10 +124,9 @@ main(int argc, char *argv[])
 			continue;
 		}
 		/* 3 -> TIMER_MAX stored into timerid->oshandle */
-		printf("Timer #%d now created at address %p.\n", timer_oshandle_np(timerid[i]),timerid[i]);
 		np = malloc(sizeof(struct entry));	/* Insert at the head. */
 		np->code = timer_oshandle_np(timerid[i]);
-		np->name=names[i];
+		np->name = names[i];
 
 		SLIST_INSERT_HEAD(&head, np, entries);
 
@@ -137,12 +140,13 @@ main(int argc, char *argv[])
 		if (timer_settime(timerid[i], 0, &its, NULL)) {
 			warn("timer_settime failed for %zu", i);
 		}
+		printf("Timer %s now created at interval %ld.\n", np->name, its.it_interval.tv_sec);
 	}
 
 	printf("waiting...\n");
 	for (; !spankme;) {
 		pause();
-	} //loop
+	}
 
 	printf("\nbye.\n");
 	for (size_t i = 0; i < nb_timers; ++i) {