From: Samuel Thibault <samuel.thibault@ens-lyon.org>
To: libc-alpha@sourceware.org
Cc: Samuel Thibault <samuel.thibault@ens-lyon.org>, commit-hurd@gnu.org
Subject: [hurd,commited 4/7] htl: Add futex-internal.h
Date: Wed, 16 Dec 2020 01:59:41 +0100 [thread overview]
Message-ID: <20201216005944.3091900-5-samuel.thibault@ens-lyon.org> (raw)
In-Reply-To: <20201216005944.3091900-1-samuel.thibault@ens-lyon.org>
That provides futex_supports_pshared
---
sysdeps/htl/futex-internal.h | 39 ++++++++++++++++++++++++++++++++++++
1 file changed, 39 insertions(+)
create mode 100644 sysdeps/htl/futex-internal.h
diff --git a/sysdeps/htl/futex-internal.h b/sysdeps/htl/futex-internal.h
new file mode 100644
index 0000000000..2b7a13aff0
--- /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 */
--
2.29.2
next prev parent reply other threads:[~2020-12-16 0:59 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-16 0:59 [hurd,commited 0/7] hurd: add pshared semaphore support Samuel Thibault
2020-12-16 0:59 ` [hurd, commited 1/7] hurd: Rename LLL_INITIALIZER to LLL_LOCK_INITIALIZER Samuel Thibault
2020-12-16 0:59 ` [hurd, commited 2/7] hurd: make lll_* take a variable instead of a ptr Samuel Thibault
2020-12-16 0:59 ` [hurd,commited 3/7] hurd: Add __lll_abstimed_wait_intr Samuel Thibault
2020-12-16 0:59 ` Samuel Thibault [this message]
2020-12-16 0:59 ` [hurd,commited 5/7] hurd: Add __libc_open and __libc_close Samuel Thibault
2020-12-16 0:59 ` [hurd,commited 6/7] hurd: Add LLL_PRIVATE and LLL_SHARED Samuel Thibault
2020-12-16 0:59 ` [hurd,commited 7/7] htl: Add pshared semaphore support Samuel Thibault
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