diff -r e79a60b3a7cb -r 7c3ff86ee9d4 ucx/cx/common.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ucx/cx/common.h	Tue May 23 11:11:28 2023 +0200
@@ -0,0 +1,141 @@
+/*
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
+ *
+ * Copyright 2021 Mike Becker, Olaf Wintermann All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *   1. Redistributions of source code must retain the above copyright
+ *      notice, this list of conditions and the following disclaimer.
+ *
+ *   2. Redistributions in binary form must reproduce the above copyright
+ *      notice, this list of conditions and the following disclaimer in the
+ *      documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/**
+ * \file common.h
+ *
+ * \brief Common definitions and feature checks.
+ *
+ * \author Mike Becker
+ * \author Olaf Wintermann
+ * \version 3.0
+ * \copyright 2-Clause BSD License
+ *
+ * \mainpage UAP Common Extensions
+ * Library with common and useful functions, macros and data structures.
+ * <p>
+ * Latest available source:<br>
+ * <a href="https://sourceforge.net/projects/ucx/files/">https://sourceforge.net/projects/ucx/files/</a>
+ * </p>
+ *
+ * <p>
+ * Repositories:<br>
+ * <a href="https://sourceforge.net/p/ucx/code">https://sourceforge.net/p/ucx/code</a>
+ * -&nbsp;or&nbsp;-
+ * <a href="https://develop.uap-core.de/hg/ucx">https://develop.uap-core.de/hg/ucx</a>
+ * </p>
+ *
+ * <h2>LICENCE</h2>
+ *
+ * Copyright 2021 Mike Becker, Olaf Wintermann All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *   1. Redistributions of source code must retain the above copyright
+ *      notice, this list of conditions and the following disclaimer.
+ *
+ *   2. Redistributions in binary form must reproduce the above copyright
+ *      notice, this list of conditions and the following disclaimer in the
+ *      documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef UCX_COMMON_H
+#define UCX_COMMON_H
+
+/** Major UCX version as integer constant. */
+#define UCX_VERSION_MAJOR   3
+
+/** Minor UCX version as integer constant. */
+#define UCX_VERSION_MINOR   0
+
+/** Version constant which ensures to increase monotonically. */
+#define UCX_VERSION (((UCX_VERSION_MAJOR)<<16)|UCX_VERSION_MINOR)
+
+// Common Includes
+
+#include <stdlib.h>
+#include <stddef.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <sys/types.h>
+
+/**
+ * Function pointer compatible with fwrite-like functions.
+ */
+typedef size_t (*cx_write_func)(
+        void const *,
+        size_t,
+        size_t,
+        void *
+);
+
+/**
+ * Function pointer compatible with fread-like functions.
+ */
+typedef size_t (*cx_read_func)(
+        void *,
+        size_t,
+        size_t,
+        void *
+);
+
+
+// Compiler specific stuff
+
+#ifndef __GNUC__
+/**
+ * Removes GNU C attributes where they are not supported.
+ */
+#define __attribute__(x)
+#endif
+
+#ifdef _MSC_VER
+
+// fix missing ssize_t definition
+#include <BaseTsd.h>
+typedef SSIZE_T ssize_t;
+
+// fix missing _Thread_local support
+#define _Thread_local __declspec(thread)
+
+#endif
+
+#endif // UCX_COMMON_H