From: Samuel Thibault <samuel.thibault@ens-lyon.org>
To: libc-alpha@sourceware.org
Cc: Thomas Schwinge <thomas@schwinge.name>
Subject: [hurd,commited] hurd: Add missing fcntl-internal.h
Date: Sun, 28 Jan 2018 18:15:00 -0000 [thread overview]
Message-ID: <20180128160729.22510-1-samuel.thibault@ens-lyon.org> (raw)
From: Thomas Schwinge <thomas@schwinge.name>
* hurd/fcntl-internal.h: New file.
---
ChangeLog | 4 ++++
hurd/fcntl-internal.h | 62 +++++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 66 insertions(+)
create mode 100644 hurd/fcntl-internal.h
diff --git a/ChangeLog b/ChangeLog
index 49bdd47601..434fef785d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -52,6 +52,10 @@
* sysdeps/mach/hurd/check_native.c: New file.
* sysdeps/mach/hurd/check_pf.c: New file.
+2008-12-18 Thomas Schwinge <tschwinge@gnu.org>
+
+ * hurd/fcntl-internal.h: New file.
+
2018-01-27 James Clarke <jrtc27@jrtc27.com>
* sysdeps/hppa/fpu/libm-test-ulps: Update.
diff --git a/hurd/fcntl-internal.h b/hurd/fcntl-internal.h
new file mode 100644
index 0000000000..d795e4089c
--- /dev/null
+++ b/hurd/fcntl-internal.h
@@ -0,0 +1,62 @@
+/* Helper functions for translating between O_* and SOCK_* flags.
+ Copyright (C) 2008-2018 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/>. */
+
+
+#include <fcntl.h>
+#include <sys/socket.h>
+
+/* Do some compile-time checks for the SOCK_* constants, which we rely on. */
+_Static_assert (SOCK_CLOEXEC == O_CLOEXEC,
+ "SOCK_CLOEXEC is assumed to be the same as O_CLOEXEC");
+_Static_assert (((SOCK_MAX - 1) | SOCK_TYPE_MASK) == SOCK_TYPE_MASK,
+ "SOCK_TYPE_MASK must contain SOCK_MAX - 1");
+_Static_assert ((SOCK_CLOEXEC & SOCK_TYPE_MASK) == 0,
+ "SOCK_TYPE_MASK must not contain SOCK_CLOEXEC");
+_Static_assert ((SOCK_NONBLOCK & SOCK_TYPE_MASK) == 0,
+ "SOCK_TYPE_MASK must not contain SOCK_NONBLOCK");
+
+
+/* Convert from SOCK_* flags to O_* flags. */
+__extern_always_inline
+int
+sock_to_o_flags (int in)
+{
+ int out = 0;
+
+ if (in & SOCK_NONBLOCK)
+ out |= O_NONBLOCK;
+ /* Others are passed through unfiltered. */
+ out |= in & ~(SOCK_NONBLOCK);
+
+ return out;
+}
+
+/* Convert from O_* flags to SOCK_* flags. */
+__extern_always_inline
+int
+o_to_sock_flags (int in)
+{
+ int out = 0;
+
+ if (in & O_NONBLOCK)
+ out |= SOCK_NONBLOCK;
+ /* Others are passed through unfiltered. */
+ out |= in & ~(O_NONBLOCK);
+
+ return out;
+}
--
2.15.1
next reply other threads:[~2018-01-28 16:07 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-28 18:15 Samuel Thibault [this message]
2018-01-29 15:30 ` Rafal Luzynski
2018-01-29 16:34 ` Samuel Thibault
2018-01-29 21:32 ` Joseph Myers
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