From 49cc01d4b5a126bc4eff1775a049e8e2d57bddc2 Mon Sep 17 00:00:00 2001
From: Chris Friedt <cfriedt@tenstorrent.com>
Date: Sun, 18 May 2025 10:58:33 -0400
Subject: [PATCH] libc: common: thrd: use sys_clock_nanosleep() instead of
 nanosleep()

Reduce the dependency on POSIX by taking advantage of the newly added
sys_clock_nanosleep().

Signed-off-by: Chris Friedt <cfriedt@tenstorrent.com>
---
 lib/libc/common/source/thrd/thrd.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/lib/libc/common/source/thrd/thrd.c b/lib/libc/common/source/thrd/thrd.c
index d811fe31ce6..ad2cb72b602 100644
--- a/lib/libc/common/source/thrd/thrd.c
+++ b/lib/libc/common/source/thrd/thrd.c
@@ -10,6 +10,7 @@
 #include <zephyr/kernel.h>
 #include <zephyr/posix/pthread.h>
 #include <zephyr/posix/sched.h>
+#include <zephyr/sys/clock.h>
 
 struct thrd_trampoline_arg {
 	thrd_start_t func;
@@ -44,7 +45,11 @@ thrd_t thrd_current(void)
 
 int thrd_sleep(const struct timespec *duration, struct timespec *remaining)
 {
-	return nanosleep(duration, remaining);
+	if (sys_clock_nanosleep(SYS_CLOCK_REALTIME, 0, duration, remaining) != 0) {
+		return thrd_error;
+	}
+
+	return thrd_success;
 }
 
 void thrd_yield(void)