From 82b2252ca510a52997912715cf40ddeac561e141 Mon Sep 17 00:00:00 2001
From: Robert Sacks <robert@rmsacks.com>
Date: Thu, 23 Jul 2020 02:40:04 -0400
Subject: [PATCH] Replace usleep() usage with nanosleep()

usleep() was declared obsolete in POSIX.1-2001 and removed in
POSIX.1-2008. Replace its usage with nanosleep().
---
 hash_pthreads.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/hash_pthreads.c b/hash_pthreads.c
index 78000c9..ec1a686 100644
--- a/hash_pthreads.c
+++ b/hash_pthreads.c
@@ -27,6 +27,7 @@ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
 #include <unistd.h>       /* read(), close() */
 #include <inttypes.h>     /* PRId64 etc. */
 #include <pthread.h>
+#include <time.h>         /* nanosleep() */
 
 #ifdef USE_OPENSSL
 #include <openssl/sha.h>  /* SHA1() */
@@ -169,6 +170,10 @@ static void *print_progress(void *data)
 {
 	struct queue *q = data;
 	int err;
+	struct timespec t;
+
+	t.tv_sec = PROGRESS_PERIOD / 1000000;
+	t.tv_nsec = PROGRESS_PERIOD % 1000000 * 1000;
 
 	err = pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, NULL);
 	FATAL_IF(err, "cannot set thread cancel type: %s\n", strerror(err));
@@ -178,7 +183,7 @@ static void *print_progress(void *data)
 		printf("\rHashed %u of %u pieces.", q->pieces_hashed, q->pieces);
 		fflush(stdout);
 		/* now sleep for PROGRESS_PERIOD microseconds */
-		usleep(PROGRESS_PERIOD);
+		nanosleep(&t, NULL);
 	}
 
 	return NULL;