From: Guus Sliepen <guus@tinc-vpn.org>
Date: Thu, 14 Apr 2016 15:20:36 +0000 (+0200)
Subject: Replace usleep() with nanosleep().
X-Git-Tag: release-1.1pre12~37
X-Git-Url: https://tinc-vpn.org/git/browse?p=tinc;a=commitdiff_plain;h=b5b04910b928c63a31a0859f04bf067ca9bd1cc2

Replace usleep() with nanosleep().
---

diff --git a/configure.ac b/configure.ac
index d43bfa02..9691fd5b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -199,7 +199,7 @@ AC_CHECK_TYPES([socklen_t, struct ether_header, struct arphdr, struct ether_arp,
 
 dnl Checks for library functions.
 AC_TYPE_SIGNAL
-AC_CHECK_FUNCS([asprintf daemon fchmod flock ftime fork get_current_dir_name gettimeofday mlockall putenv random recvmmsg select strdup strsignal usleep unsetenv vsyslog devname fdevname],
+AC_CHECK_FUNCS([asprintf daemon fchmod flock ftime fork get_current_dir_name gettimeofday mlockall putenv random recvmmsg select strdup strsignal nanosleep unsetenv vsyslog devname fdevname],
   [], [], [#include "$srcdir/src/have.h"]
 )
 
diff --git a/src/dropin.c b/src/dropin.c
index 6d408507..a2297557 100644
--- a/src/dropin.c
+++ b/src/dropin.c
@@ -1,7 +1,7 @@
 /*
     dropin.c -- a set of drop-in replacements for libc functions
     Copyright (C) 2000-2005 Ivo Timmermans,
-                  2000-2013 Guus Sliepen <guus@tinc-vpn.org>
+                  2000-2016 Guus Sliepen <guus@tinc-vpn.org>
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -174,10 +174,9 @@ int gettimeofday(struct timeval *tv, void *tz) {
 }
 #endif
 
-#ifndef HAVE_USLEEP
-int usleep(long long usec) {
-	struct timeval tv = {usec / 1000000, (usec / 1000) % 1000};
-	select(0, NULL, NULL, NULL, &tv);
-	return 0;
+#ifndef HAVE_NANOSLEEP
+int nanosleep(const struct timespec *req, struct timespec *rem) {
+	struct timeval tv = {req->tv_sec, req->tv_nsec / 1000};
+	return select(0, NULL, NULL, NULL, &tv);
 }
 #endif
diff --git a/src/dropin.h b/src/dropin.h
index 5601a312..fff2d413 100644
--- a/src/dropin.h
+++ b/src/dropin.h
@@ -41,8 +41,8 @@ extern int vasprintf(char **, const char *, va_list ap);
 extern int gettimeofday(struct timeval *, void *);
 #endif
 
-#ifndef HAVE_USLEEP
-extern int usleep(long long usec);
+#ifndef HAVE_NANOSLEEP
+extern int nanosleep(const struct timespec *req, struct timespec *rem);
 #endif
 
 #ifndef timeradd
diff --git a/src/net.c b/src/net.c
index a5394256..9094d61d 100644
--- a/src/net.c
+++ b/src/net.c
@@ -181,7 +181,7 @@ static void periodic_handler(void *data) {
 
 	if(contradicting_del_edge > 100 && contradicting_add_edge > 100) {
 		logger(DEBUG_ALWAYS, LOG_WARNING, "Possible node with same Name as us! Sleeping %d seconds.", sleeptime);
-		usleep(sleeptime * 1000000LL);
+		nanosleep(&(struct timespec){sleeptime, 0}, NULL);
 		sleeptime *= 2;
 		if(sleeptime < 0)
 			sleeptime = 3600;