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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_test_vec_h
+#define included_test_vec_h
+
+
+#include <vppinfra/clib.h>
+#include <vppinfra/mem.h>
+#include <vppinfra/format.h>
+#include <vppinfra/error.h>
+
+
+extern uword g_verbose;
+extern u32 g_seed;
+
+always_inline u8 * format_u32_binary (u8 * s, va_list * va)
+{
+ u32 val = va_arg (*va, u32);
+ word i = 0;
+
+ for (i = BITS (val) - 1; i >= 0; i--)
+ {
+ if (val & (1 << i))
+ s = format (s, "1");
+ else
+ s = format (s, "0");
+ }
+
+ return s;
+}
+
+#define VERBOSE1(fmt, args...) \
+do { \
+ if (g_verbose >= 1) \
+ fformat (stdout, fmt, ## args); \
+} while (0)
+
+#define VERBOSE2(fmt, args...) \
+do { \
+ if (g_verbose >= 2) \
+ fformat (stdout, fmt, ## args); \
+} while (0)
+
+#define VERBOSE3(fmt, args...) \
+do { \
+ if (g_verbose >= 3) \
+ fformat (stdout, fmt, ## args); \
+} while (0)
+
+#define clib_mem_free_safe(p) \
+do { \
+ if (p) \
+ { \
+ clib_mem_free (p); \
+ (p) = NULL; \
+ } \
+} while (0)
+
+/* XXX - I get undefined symbol trying to call random_u32() <vppinfra/random.h> */
+/* Simple random number generator with period 2^31 - 1. */
+static u32 my_random_u32 (u32 * seed_return)
+{
+ /* Unlikely mask value to XOR into seed.
+ Otherwise small seed values would give
+ non-random seeming smallish numbers. */
+ const u32 mask = 0x12345678;
+ u32 seed, a, b, result;
+
+ seed = *seed_return;
+ seed ^= mask;
+
+ a = seed / 127773;
+ b = seed % 127773;
+ seed = 16807 * b - 2836 * a;
+
+ if ((i32) seed < 0)
+ seed += ((u32) 1 << 31) - 1;
+
+ result = seed;
+
+ *seed_return = seed ^ mask;
+
+ return result;
+}
+
+static u32 bounded_random_u32 (u32 * seed, uword lo, uword hi)
+{
+ if (lo == hi)
+ return lo;
+
+ ASSERT (lo < hi);
+
+ return ((my_random_u32 (seed) % (hi - lo + ((hi != ~0) ? (1) : (0)))) + lo);
+}
+
+#define fill_with_random_data(ptr, bytes, seed) \
+do { \
+ u8 * _v(p) = (u8 *) (ptr); \
+ uword _v(b) = (bytes); \
+ uword _v(i); \
+ \
+ for (_v(i) = 0; _v(i) < _v(b); _v(i)++) \
+ _v(p)[_v(i)] = (u8) bounded_random_u32 (&(seed), 0, 255); \
+ \
+} while (0)
+
+#define compute_mem_hash(hash, ptr, bytes) \
+({ \
+ u8 * _v(p) = (u8 *) (ptr); \
+ uword _v(b) = (uword) (bytes); \
+ uword _v(i); \
+ uword _v(h) = (u8) (hash); \
+ \
+ if (_v(p) && _v(b) > 0) \
+ { \
+ for (_v(i) = 0; _v(i) < _v(b); _v(i)++) \
+ _v(h) ^= _v(p)[_v(i)]; \
+ } \
+ \
+ _v(h); \
+})
+
+#define log2_align_down(value, align) \
+({ \
+ uword _v = (uword) (value); \
+ uword _a = (uword) (align); \
+ uword _m = (1 << _a) - 1; \
+ \
+ _v = _v & ~_m; \
+})
+
+#define log2_align_up(value, align) \
+({ \
+ uword _v = (uword) (value); \
+ uword _a = (uword) (align); \
+ uword _m = (1 << _a) - 1; \
+ \
+ _v = (_v + _m) & ~_m; \
+})
+
+#define log2_align_ptr_down(ptr, align) \
+uword_to_pointer (log2_align_down (pointer_to_uword (ptr), align), void *)
+
+#define log2_align_ptr_up(ptr, align) \
+uword_to_pointer (log2_align_up (pointer_to_uword (ptr), align), void *)
+
+#define MAX_LOG2_ALIGN 6
+#define MAX_UNALIGN_OFFSET ((1 << MAX_LOG2_ALIGN) - 1)
+
+/* Allocates pointer to memory whose address is:
+ addr = <log2_align>-aligned address */
+always_inline void * alloc_aligned (uword size, uword log2_align, void ** ptr_to_free)
+{
+ void * p;
+
+ if (size <= 0)
+ return NULL;
+
+ p = (void *) clib_mem_alloc (size + (1 << log2_align) - 1);
+
+ if (ptr_to_free)
+ *ptr_to_free = p;
+
+ return (p) ? log2_align_ptr_up (p, log2_align) : (NULL);
+}
+
+/* Allocates pointer to memory whose address is:
+ addr = MAX_LOG2_ALIGN-aligned address + <offset> */
+always_inline void * alloc_unaligned (uword size, uword offset, void ** ptr_to_free)
+{
+ void * p;
+
+ if (size <= 0)
+ return NULL;
+
+ ASSERT (offset <= MAX_UNALIGN_OFFSET);
+
+ p = alloc_aligned (size + (1 << MAX_LOG2_ALIGN), MAX_LOG2_ALIGN, ptr_to_free);
+
+ if (! p)
+ return NULL;
+
+ return (void *) ((u8 *) p + (offset % MAX_UNALIGN_OFFSET));
+}
+
+#define memory_snap() \
+do { \
+ clib_mem_usage_t _usage = { 0 }; \
+ clib_mem_usage (&_usage); \
+ fformat (stdout, "%U\n", format_clib_mem_usage, _usage, 0); \
+} while (0)
+
+
+#endif /* included_test_vec_h */