| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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. |
| */ |
| |
| #include "core/conf.h" |
| #include "test/test.h" |
| #include "util/log.h" |
| #include "util/rand.h" |
| |
| #include <inttypes.h> |
| #include <stdint.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| |
| struct htrace_log *g_rand_unit_lg; |
| |
| #define ARRAY_SIZE 128 |
| |
| static int compare_u32(const void *v1, const void *v2) |
| { |
| uint32_t a = *(uint32_t *)v1; |
| uint32_t b = *(uint32_t *)v2; |
| |
| if (a < b) { |
| return -1; |
| } else if (b < a) { |
| return 1; |
| } else { |
| return 0; |
| } |
| } |
| |
| /** |
| * Test that we can generate an array of unique uint32_t objects. |
| */ |
| static int test_u32_uniqueness(void) |
| { |
| struct random_src *rnd = random_src_alloc(g_rand_unit_lg); |
| uint32_t prev, *arr; |
| int i, duplicate; |
| |
| do { |
| arr = calloc(ARRAY_SIZE, sizeof(uint32_t)); |
| EXPECT_NONNULL(arr); |
| for (i = 0; i < ARRAY_SIZE; i++) { |
| arr[i] = random_u32(rnd); |
| } |
| qsort(arr, ARRAY_SIZE, sizeof(arr[0]), compare_u32); |
| prev = 0; |
| duplicate = 0; |
| for (i = 0; i < ARRAY_SIZE; i++) { |
| if (arr[i] == prev) { |
| duplicate = 1; |
| } |
| prev = arr[i]; |
| } |
| } while (duplicate); |
| random_src_free(rnd); |
| free(arr); |
| return EXIT_SUCCESS; |
| } |
| |
| int main(void) |
| { |
| struct htrace_conf *conf; |
| |
| conf = htrace_conf_from_strs("", ""); |
| EXPECT_NONNULL(conf); |
| g_rand_unit_lg = htrace_log_alloc(conf); |
| EXPECT_NONNULL(g_rand_unit_lg); |
| EXPECT_INT_ZERO(test_u32_uniqueness()); |
| htrace_log_free(g_rand_unit_lg); |
| htrace_conf_free(conf); |
| |
| return EXIT_SUCCESS; |
| } |
| |
| // vim: ts=4:sw=4:tw=79:et |