tests/test-atomic.c

   1 /*
   2  * Copyright (c) 2013, 2014 Nicira, Inc.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at:
   7  *
   8  *     http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 #include <config.h>
  18
  19 #include "ovs-atomic.h"
  20 #include "util.h"
  21
  22 #define TEST_ATOMIC_TYPE(ATOMIC_TYPE, BASE_TYPE)        \
  23     {                                                   \
  24         ATOMIC_TYPE x = ATOMIC_VAR_INIT(1);             \
  25         BASE_TYPE value, orig;                          \
  26                                                         \
  27         atomic_read(&x, &value);                        \
  28         ovs_assert(value == 1);                         \
  29                                                         \
  30         atomic_store(&x, 2);                            \
  31         atomic_read(&x, &value);                        \
  32         ovs_assert(value == 2);                         \
  33                                                         \
  34         atomic_init(&x, 3);                             \
  35         atomic_read(&x, &value);                        \
  36         ovs_assert(value == 3);                         \
  37                                                         \
  38         atomic_add(&x, 1, &orig);                       \
  39         ovs_assert(orig == 3);                          \
  40         atomic_read(&x, &value);                        \
  41         ovs_assert(value == 4);                         \
  42                                                         \
  43         atomic_sub(&x, 2, &orig);                       \
  44         ovs_assert(orig == 4);                          \
  45         atomic_read(&x, &value);                        \
  46         ovs_assert(value == 2);                         \
  47                                                         \
  48         atomic_or(&x, 6, &orig);                        \
  49         ovs_assert(orig == 2);                          \
  50         atomic_read(&x, &value);                        \
  51         ovs_assert(value == 6);                         \
  52                                                         \
  53         atomic_and(&x, 10, &orig);                      \
  54         ovs_assert(orig == 6);                          \
  55         atomic_read(&x, &value);                        \
  56         ovs_assert(value == 2);                         \
  57                                                         \
  58         atomic_xor(&x, 10, &orig);                      \
  59         ovs_assert(orig == 2);                          \
  60         atomic_read(&x, &value);                        \
  61         ovs_assert(value == 8);                         \
  62     }
  63
  64 static void
  65 test_atomic_flag(void)
  66 {
  67     atomic_flag flag = ATOMIC_FLAG_INIT;
  68     ovs_assert(atomic_flag_test_and_set(&flag) == false);
  69     ovs_assert(atomic_flag_test_and_set(&flag) == true);
  70     atomic_flag_clear(&flag);
  71     ovs_assert(atomic_flag_test_and_set(&flag) == false);
  72 }
  73
  74 int
  75 main(void)
  76 {
  77     TEST_ATOMIC_TYPE(atomic_char, char);
  78     TEST_ATOMIC_TYPE(atomic_uchar, unsigned char);
  79     TEST_ATOMIC_TYPE(atomic_schar, signed char);
  80     TEST_ATOMIC_TYPE(atomic_short, short);
  81     TEST_ATOMIC_TYPE(atomic_ushort, unsigned short);
  82     TEST_ATOMIC_TYPE(atomic_int, int);
  83     TEST_ATOMIC_TYPE(atomic_uint, unsigned int);
  84     TEST_ATOMIC_TYPE(atomic_long, long int);
  85     TEST_ATOMIC_TYPE(atomic_ulong, unsigned long int);
  86     TEST_ATOMIC_TYPE(atomic_llong, long long int);
  87     TEST_ATOMIC_TYPE(atomic_ullong, unsigned long long int);
  88     TEST_ATOMIC_TYPE(atomic_size_t, size_t);
  89     TEST_ATOMIC_TYPE(atomic_ptrdiff_t, ptrdiff_t);
  90     TEST_ATOMIC_TYPE(atomic_intmax_t, intmax_t);
  91     TEST_ATOMIC_TYPE(atomic_uintmax_t, uintmax_t);
  92     TEST_ATOMIC_TYPE(atomic_intptr_t, intptr_t);
  93     TEST_ATOMIC_TYPE(atomic_uintptr_t, uintptr_t);
  94     TEST_ATOMIC_TYPE(atomic_uint8_t, uint8_t);
  95     TEST_ATOMIC_TYPE(atomic_int8_t, int8_t);
  96     TEST_ATOMIC_TYPE(atomic_uint16_t, uint16_t);
  97     TEST_ATOMIC_TYPE(atomic_int16_t, int16_t);
  98     TEST_ATOMIC_TYPE(atomic_uint32_t, uint32_t);
  99     TEST_ATOMIC_TYPE(atomic_int32_t, int32_t);
 100     TEST_ATOMIC_TYPE(atomic_uint64_t, uint64_t);
 101     TEST_ATOMIC_TYPE(atomic_int64_t, int64_t);
 102
 103     test_atomic_flag();
 104
 105     return 0;
 106 }