Adding upstream version 2.4.2.upstream/2.4.2upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 72 insertions, 0 deletions

diff --git a/lib/replace/system/threads.h b/lib/replace/system/threads.h
new file mode 100644
index 0000000..d189ed6
--- /dev/null
+++ b/lib/replace/system/threads.h
@@ -0,0 +1,72 @@
+#ifndef _system_threads_h
+#define _system_threads_h
+/*
+   Unix SMB/CIFS implementation.
+
+   macros to go along with the lib/replace/ portability layer code
+
+   Copyright (C) Volker Lendecke 2012
+
+     ** NOTE! The following LGPL license applies to the replace
+     ** library. This does NOT imply that all of Samba is released
+     ** under the LGPL
+
+   This 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 3 of the License, or (at your option) any later version.
+
+   This 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 this library; if not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <pthread.h>
+
+#if defined(HAVE_PTHREAD_MUTEXATTR_SETROBUST_NP) && \
+	!defined(HAVE_PTHREAD_MUTEXATTR_SETROBUST)
+#define pthread_mutexattr_setrobust pthread_mutexattr_setrobust_np
+#endif
+
+#if defined(HAVE_DECL_PTHREAD_MUTEX_ROBUST_NP) && \
+	!defined(HAVE_DECL_PTHREAD_MUTEX_ROBUST)
+#define PTHREAD_MUTEX_ROBUST PTHREAD_MUTEX_ROBUST_NP
+#endif
+
+#if defined(HAVE_PTHREAD_MUTEX_CONSISTENT_NP) && \
+	!defined(HAVE_PTHREAD_MUTEX_CONSISTENT)
+#define pthread_mutex_consistent pthread_mutex_consistent_np
+#endif
+
+#ifdef HAVE_STDATOMIC_H
+#include <stdatomic.h>
+#endif
+
+#ifndef HAVE_ATOMIC_THREAD_FENCE
+#ifdef HAVE___ATOMIC_THREAD_FENCE
+#define atomic_thread_fence(__ignore_order) __atomic_thread_fence(__ATOMIC_SEQ_CST)
+#define HAVE_ATOMIC_THREAD_FENCE 1
+#endif /* HAVE___ATOMIC_THREAD_FENCE */
+#endif /* not HAVE_ATOMIC_THREAD_FENCE */
+
+#ifndef HAVE_ATOMIC_THREAD_FENCE
+#ifdef HAVE___SYNC_SYNCHRONIZE
+#define atomic_thread_fence(__ignore_order) __sync_synchronize()
+#define HAVE_ATOMIC_THREAD_FENCE 1
+#endif /* HAVE___SYNC_SYNCHRONIZE */
+#endif /* not HAVE_ATOMIC_THREAD_FENCE */
+
+#ifndef HAVE_ATOMIC_THREAD_FENCE
+#ifdef HAVE_ATOMIC_THREAD_FENCE_SUPPORT
+#error mismatch_error_between_configure_test_and_header
+#endif
+/* make sure the build fails if someone uses it without checking the define */
+#define atomic_thread_fence(__order) \
+        __function__atomic_thread_fence_not_available_on_this_platform__()
+#endif /* not HAVE_ATOMIC_THREAD_FENCE */
+
+#endif