From: GNU Libc Maintainers <debian-glibc@lists.debian.org>
Date: Thu, 15 Feb 2024 22:29:51 +0000 (+0000)
Subject: git-futex-internal
X-Git-Tag: archive/raspbian/2.31-13+rpi1+deb11u10~68
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=5ef78fd9e020716427c56b5bec4ce678e0225b56;p=glibc.git

git-futex-internal

Commited for 2.33

commit 65e43d5ad22ff527fd534679d357245f515bf308
Author: Samuel Thibault <samuel.thibault@ens-lyon.org>
Date:   Sun Dec 13 11:06:27 2020 +0000

    htl: Add futex-internal.h

    That provides futex_supports_pshared


Gbp-Pq: Topic hurd-i386
Gbp-Pq: Name git-futex-internal.diff
---

diff --git a/sysdeps/htl/futex-internal.h b/sysdeps/htl/futex-internal.h
new file mode 100644
index 000000000..2b7a13aff
--- /dev/null
+++ b/sysdeps/htl/futex-internal.h
@@ -0,0 +1,39 @@
+/* futex operations for glibc-internal use.  Stub version; do not include
+   this file directly.
+   Copyright (C) 2014-2020 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <https://www.gnu.org/licenses/>.  */
+
+#ifndef STUB_FUTEX_INTERNAL_H
+#define STUB_FUTEX_INTERNAL_H
+
+#include <pthread.h>
+
+/* Returns EINVAL if PSHARED is neither PTHREAD_PROCESS_PRIVATE nor
+   PTHREAD_PROCESS_SHARED; otherwise, returns 0 if PSHARED is supported, and
+   ENOTSUP if not.  */
+static __always_inline int
+futex_supports_pshared (int pshared)
+{
+  if (__glibc_likely (pshared == PTHREAD_PROCESS_PRIVATE))
+    return 0;
+  else if (pshared == PTHREAD_PROCESS_SHARED)
+    return 0;
+  else
+    return EINVAL;
+}
+
+#endif  /* futex-internal.h */