examples: replace usleep() with nanosleep()

Accessing usleep() requires _BSD_SOURCE feature test macro to be
set. However, _SVID_SOURCE is set as well, what will cause deprecation
warnings when building with glibc >= 2.20. The patch replaced usleep()
with nanosleep() to avoid these problems.

1 files changed, 5 insertions, 5 deletions

diff --git a/examples/unix/platform_utils.c b/examples/unix/platform_utils.c
index 777d56b..1f3ff43 100644
--- a/examples/unix/platform_utils.c
+++ b/examples/unix/platform_utils.c
@@ -34,11 +34,8 @@
  * ***** END LICENSE BLOCK *****
  */
 
-/* For usleep */
-#define _BSD_SOURCE
-
 #include <stdint.h>
-
+#include <time.h>
 #include <sys/time.h>
 #include <unistd.h>
 
@@ -51,5 +48,8 @@ uint64_t now_microseconds(void)
 
 void microsleep(int usec)
 {
-  usleep(usec);
+  struct timespec req;
+  req.tv_sec = 0;
+  req.tv_nsec = 1000 * usec;
+  nanosleep(&req, NULL);
 }