[Git][NTPsec/ntpsec][master] Changed signal indicator bools from globals to struct members.

[Ian Bruene]

Ian Bruene pushed to branch master at NTPsec / ntpsec


Commits:
1acddc55 by Ian Bruene at 2018-05-13T15:57:30Z
Changed signal indicator bools from globals to struct members.

- - - - -


4 changed files:

- include/ntpd.h
- ntpd/ntp_io.c
- ntpd/ntp_timer.c
- ntpd/ntpd.c


Changes:

=====================================
include/ntpd.h
=====================================
--- a/include/ntpd.h
+++ b/include/ntpd.h
@@ -349,10 +349,14 @@ extern uint64_t	sys_kodsent;		/* KoD sent */
 extern uptime_t	use_stattime;		/* time since usestats reset */
 
 /* Signalling: Set by signal handlers */
-extern volatile bool sawALRM;
-extern volatile bool sawHUP;
-extern volatile bool sawDNS;
-extern volatile bool sawQuit;		/* SIGQUIT, SIGINT, SIGTERM */
+struct signals_detected {
+    bool sawALRM;
+    bool sawHUP;
+    bool sawDNS;
+    bool sawQuit;                   /* SIGQUIT, SIGINT, SIGTERM */
+};
+extern volatile struct signals_detected sig_flags;
+
 
 /* ntp_restrict.c */
 extern restrict_u *	restrictlist4;	/* IPv4 restriction list */


=====================================
ntpd/ntp_io.c
=====================================
--- a/ntpd/ntp_io.c
+++ b/ntpd/ntp_io.c
@@ -278,14 +278,12 @@ static int	read_refclock_packet	(SOCKET, struct refclockio *, l_fp);
 /*
  * Flags from signal handlers
  */
-volatile bool sawALRM = false;
-volatile bool sawHUP = false;
-#ifdef ENABLE_DNS_LOOKUP
-volatile bool sawDNS = false;
-#else
-# define sawDNS false
-#endif
-volatile bool sawQuit = false;  /* SIGQUIT, SIGINT, SIGTERM */
+volatile struct signals_detected sig_flags = {
+    .sawALRM = false,
+    .sawHUP = false,
+    .sawDNS = false,
+    .sawQuit = false  /* SIGQUIT, SIGINT, SIGTERM */
+};
 static sigset_t blockMask;
 
 void
@@ -2412,7 +2410,8 @@ io_handler(void)
 	 * reception of input.
 	 */
 	pthread_sigmask(SIG_BLOCK, &blockMask, &runMask);
-	flag = sawALRM || sawQuit || sawHUP || sawDNS;
+	flag = sig_flags.sawALRM || sig_flags.sawQuit || sig_flags.sawHUP || \
+	  sig_flags.sawDNS;
 	if (!flag) {
 	  rdfdes = activefds;
 	  nfound = pselect(maxactivefd+1, &rdfdes, NULL, NULL, NULL, &runMask);


=====================================
ntpd/ntp_timer.c
=====================================
--- a/ntpd/ntp_timer.c
+++ b/ntpd/ntp_timer.c
@@ -137,7 +137,7 @@ init_timer(void)
 	/*
 	 * Initialize...
 	 */
-	sawALRM = false;
+	sig_flags.sawALRM = false;
 	alarm_overflow = 0;
 	adjust_timer = 1;
 	stats_timer = SECSPERHR;
@@ -309,13 +309,13 @@ catchALRM(
 # ifdef DEBUG
 	const char *msg = NULL;
 # endif
-	if (sawALRM) {
+	if (sig_flags.sawALRM) {
 		alarm_overflow++;
 # ifdef DEBUG
 		msg = "catchALRM: overflow\n";
 # endif
 	} else {
-		sawALRM = true;
+		sig_flags.sawALRM = true;
 # ifdef DEBUG
 		msg = "catchALRM: normal\n";
 # endif


=====================================
ntpd/ntpd.c
=====================================
--- a/ntpd/ntpd.c
+++ b/ntpd/ntpd.c
@@ -918,28 +918,28 @@ static void mainloop(void)
 	init_timer();
 
 	for (;;) {
-		if (sawQuit)
+		if (sig_flags.sawQuit)
 			finish_safe(signo);
 
-		if (!sawALRM && !has_full_recv_buffer()) {
+		if (!sig_flags.sawALRM && !has_full_recv_buffer()) {
 			/*
 			 * Nothing to do.  Wait for something.
 			 */
 			io_handler();
 		}
 
-		if (sawALRM) {
+		if (sig_flags.sawALRM) {
 			/*
 			 * Out here, signals are unblocked.  Call timer routine
 			 * to process expiry.
 			 */
-			sawALRM = false;
+		    sig_flags.sawALRM = false;
 			timer();
 		}
 
 #ifdef ENABLE_DNS_LOOKUP
-		if (sawDNS) {
-			sawDNS = false;
+		if (sig_flags.sawDNS) {
+			sig_flags.sawDNS = false;
 			dns_check();
 		}
 #endif
@@ -956,10 +956,10 @@ static void mainloop(void)
 			rbuf = get_full_recv_buffer();
 			while (rbuf != NULL) {
 
-				if (sawALRM) {
+				if (sig_flags.sawALRM) {
 					/* avoid timer starvation during lengthy I/O handling */
 					timer();
-					sawALRM = false;
+					sig_flags.sawALRM = false;
 				}
 
 				/*
@@ -997,8 +997,8 @@ static void mainloop(void)
 		/*
 		 * Check files
 		 */
-		if (sawHUP) {
-			sawHUP = false;
+		if (sig_flags.sawHUP) {
+			sig_flags.sawHUP = false;
 			msyslog(LOG_INFO, "LOG: Saw SIGHUP");
 
 			reopen_logfile();
@@ -1065,7 +1065,7 @@ catchQuit(
 	int	sig
 	)
 {
-	sawQuit = true;
+	sig_flags.sawQuit = true;
 	signo = sig;
 }
 
@@ -1075,7 +1075,7 @@ catchQuit(
 static void catchHUP(int sig)
 {
 	UNUSED_ARG(sig);
-	sawHUP = true;
+	sig_flags.sawHUP = true;
 }
 
 #ifdef ENABLE_DNS_LOOKUP
@@ -1085,7 +1085,7 @@ static void catchHUP(int sig)
 static void catchDNS(int sig)
 {
 	UNUSED_ARG(sig);
-	sawDNS = true;
+	sig_flags.sawDNS = true;
 }
 #endif
 



View it on GitLab: https://gitlab.com/NTPsec/ntpsec/commit/1acddc55a938784440184fea912db51f38963f15

-- 
View it on GitLab: https://gitlab.com/NTPsec/ntpsec/commit/1acddc55a938784440184fea912db51f38963f15
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