From c62c8cb82d18ee36bc47e12e5722d51cc011f133 Mon Sep 17 00:00:00 2001
From: Mara Bos <m-ou.se@m-ou.se>
Date: Wed, 6 Apr 2022 12:49:46 +0200
Subject: [PATCH] Add current_thread_unique_ptr() in std::sys_common.

---
 library/std/src/sys_common/thread_info.rs | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/library/std/src/sys_common/thread_info.rs b/library/std/src/sys_common/thread_info.rs
index 38c9e50009a..cd570dca0ff 100644
--- a/library/std/src/sys_common/thread_info.rs
+++ b/library/std/src/sys_common/thread_info.rs
@@ -30,6 +30,13 @@ impl ThreadInfo {
     }
 }
 
+/// Get an address that is unique per running thread.
+///
+/// This can be used as a non-null usize-sized ID.
+pub fn current_thread_unique_ptr() -> usize {
+    THREAD_INFO.with(|info| <*const _>::addr(info))
+}
+
 pub fn current_thread() -> Option<Thread> {
     ThreadInfo::with(|info| info.thread.clone())
 }