Move to kernel style SPDX license identifiers

[lttng-ust.git] / include / lttng / ust-tracer.h

diff --git a/include/lttng/ust-tracer.h b/include/lttng/ust-tracer.h
index ec30db7446a52608b6d5b0a9267f3184f33b516f..9593609db348b845242e06dcf27648072175ac32 100644 (file)
--- a/include/lttng/ust-tracer.h
+++ b/include/lttng/ust-tracer.h
@@ -1,32 +1,21 @@
-#ifndef _LTTNG_UST_TRACER_H
-#define _LTTNG_UST_TRACER_H
-
 /*
- * Copyright (C) 2005-2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- *
- * This contains the core definitions for the Linux Trace Toolkit.
- *
- * Copyright 2011-2012 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ * SPDX-License-Identifier: MIT
  *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
+ * Copyright (C) 2005-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
  *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
+ * This contains the core definitions for the Linux Trace Toolkit.
  */
 
+#ifndef _LTTNG_UST_TRACER_H
+#define _LTTNG_UST_TRACER_H
+
+#include <limits.h>
+
+#if defined (__cplusplus)
+#include <type_traits>
+#endif
+
+#include <lttng/ust-compiler.h>
 #include <lttng/ust-config.h>
 #include <lttng/ust-version.h>
 
@@ -47,4 +36,30 @@
 
 #define lttng_is_signed_type(type)           ((type) -1 < (type) 0)
 
+/*
+ * This macro adds a compilation assertion that CTF arrays and sequences
+ * declared by the users are of an integral type.
+ */
+
+#if defined(__cplusplus)
+#define _lttng_is_integer(type) (std::is_integral<type>::value)
+#else
+#define _lttng_is_integer(type) (__builtin_types_compatible_p(type, _Bool) || \
+               __builtin_types_compatible_p(type, char) || \
+               __builtin_types_compatible_p(type, unsigned char) || \
+               __builtin_types_compatible_p(type, short) || \
+               __builtin_types_compatible_p(type, unsigned short) || \
+               __builtin_types_compatible_p(type, int) || \
+               __builtin_types_compatible_p(type, unsigned int) || \
+               __builtin_types_compatible_p(type, long) || \
+               __builtin_types_compatible_p(type, unsigned long) || \
+               __builtin_types_compatible_p(type, long long) || \
+               __builtin_types_compatible_p(type, unsigned long long))
+#endif
+
+#define _lttng_array_element_type_is_supported(_type, _item) \
+               lttng_static_assert(_lttng_is_integer(_type), \
+                       "Non-integer type `" #_item "` not supported as element of CTF_ARRAY or CTF_SEQUENCE", \
+                       Non_integer_type__##_item##__not_supported_as_element_of_CTF_ARRAY_or_CTF_SEQUENCE);
+
 #endif /* _LTTNG_UST_TRACER_H */