From f58b2548dc702ebc64a1b6e63f0eb1f99dc7851b Mon Sep 17 00:00:00 2001
From: Jorge Aparicio <jorge.aparicio@ferrous-systems.com>
Date: Fri, 18 Aug 2023 14:47:12 +0200
Subject: [PATCH] QNX: pass a truncated thread name to the OS

The maximum length the thread name can have is `_NTO_THREAD_NAME_MAX`
---
 library/std/src/sys/unix/thread.rs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/library/std/src/sys/unix/thread.rs b/library/std/src/sys/unix/thread.rs
index 4f2d9cf3655..7c242d4d334 100644
--- a/library/std/src/sys/unix/thread.rs
+++ b/library/std/src/sys/unix/thread.rs
@@ -182,6 +182,9 @@ impl Thread {
         }
 
         if let Some(f) = pthread_setname_np.get() {
+            #[cfg(target_os = "nto")]
+            let name = truncate_cstr::<{ libc::_NTO_THREAD_NAME_MAX as usize }>(name);
+
             let res = unsafe { f(libc::pthread_self(), name.as_ptr()) };
             debug_assert_eq!(res, 0);
         }
@@ -290,6 +293,7 @@ impl Drop for Thread {
     target_os = "ios",
     target_os = "tvos",
     target_os = "watchos",
+    target_os = "nto",
 ))]
 fn truncate_cstr<const MAX_WITH_NUL: usize>(cstr: &CStr) -> [libc::c_char; MAX_WITH_NUL] {
     let mut result = [0; MAX_WITH_NUL];