Reorganize source tree to use single autotools instance

[vpp.git] / src / vppinfra / error_bootstrap.h

diff --git a/src/vppinfra/error_bootstrap.h b/src/vppinfra/error_bootstrap.h
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+/*
+ * Copyright (c) 2015 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/*
+  Copyright (c) 2001, 2002, 2003 Eliot Dresselhaus
+
+  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:
+
+  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.
+*/
+
+#ifndef included_error_bootstrap_h
+#define included_error_bootstrap_h
+
+/* Bootstrap include so that #include <vppinfra/mem.h> can include e.g.
+   <vppinfra/mheap.h> which depends on <vppinfra/vec.h>. */
+
+#include <vppinfra/clib.h>     /* for uword */
+
+enum
+{
+  CLIB_ERROR_FATAL = 1 << 0,
+  CLIB_ERROR_ABORT = 1 << 1,
+  CLIB_ERROR_WARNING = 1 << 2,
+  CLIB_ERROR_ERRNO_VALID = 1 << 16,
+  CLIB_ERROR_NO_RATE_LIMIT = 1 << 17,
+};
+
+/* Current function name.  Need (char *) cast to silence gcc4 pointer signedness warning. */
+#define clib_error_function ((char *) __FUNCTION__)
+
+#ifndef CLIB_ASSERT_ENABLE
+#define CLIB_ASSERT_ENABLE (CLIB_DEBUG > 0)
+#endif
+
+/* Low level error reporting function.
+   Code specifies whether to call exit, abort or nothing at
+   all (for non-fatal warnings). */
+extern void _clib_error (int code,
+                        char *function_name,
+                        uword line_number, char *format, ...);
+
+#define ASSERT(truth)                                  \
+do {                                                   \
+  if (CLIB_ASSERT_ENABLE && ! (truth))                 \
+    {                                                  \
+      _clib_error (CLIB_ERROR_ABORT, 0, 0,             \
+                  "%s:%d (%s) assertion `%s' fails",   \
+                  __FILE__,                            \
+                  (uword) __LINE__,                    \
+                  clib_error_function,                 \
+                  # truth);                            \
+    }                                                  \
+} while (0)
+
+#if defined(__clang__)
+#define STATIC_ASSERT(truth,...)
+#else
+#define STATIC_ASSERT(truth,...) _Static_assert(truth, __VA_ARGS__)
+#endif
+
+#define STATIC_ASSERT_SIZEOF(d, s) \
+  STATIC_ASSERT (sizeof (d) == s, "Size of " #d " must be " # s " bytes")
+
+/* Assert without allocating memory. */
+#define ASSERT_AND_PANIC(truth)                        \
+do {                                           \
+  if (CLIB_ASSERT_ENABLE && ! (truth))         \
+    os_panic ();                               \
+} while (0)
+
+#endif /* included_error_bootstrap_h */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */