1 /* memslab.c */
2
3 /*
4 * Copyright (c) 2020, Nordic Semiconductor ASA
5 *
6 * SPDX-License-Identifier: Apache-2.0
7 */
8
9 #include "syskernel.h"
10
11 #define MEM_SLAB_BLOCK_SIZE (8)
12 #define MEM_SLAB_BLOCK_CNT (NUMBER_OF_LOOPS)
13 #define MEM_SLAB_BLOCK_ALIGN (4)
14
15 K_MEM_SLAB_DEFINE_STATIC(my_slab,
16 MEM_SLAB_BLOCK_SIZE,
17 MEM_SLAB_BLOCK_CNT,
18 MEM_SLAB_BLOCK_ALIGN);
19
20 /* Array contains pointers to allocated regions. */
21 static void *slab_array[MEM_SLAB_BLOCK_CNT];
22
23 /**
24 *
25 * @brief Memslab allocation test function.
26 * This test allocates available memory space.
27 *
28 * @param no_of_loops Amount of loops to run.
29 * @param test_repeats Amount of test repeats per loop.
30 *
31 * @return NUmber of done loops.
32 */
mem_slab_alloc_test(int no_of_loops)33 static int mem_slab_alloc_test(int no_of_loops)
34 {
35 int i;
36
37 for (i = 0; i < no_of_loops; i++) {
38 if (k_mem_slab_alloc(&my_slab, &slab_array[i], K_NO_WAIT)
39 != 0) {
40 return i;
41 }
42 }
43
44 return i;
45 }
46
47 /**
48 *
49 * @brief Memslab free test function.
50 * This test frees memory previously allocated in
51 * @ref mem_slab_alloc_test.
52 *
53 * @param no_of_loops Amount of loops to run.
54 * @param test_repeats Amount of test repeats per loop.
55 *
56 * @return NUmber of done loops.
57 */
mem_slab_free_test(int no_of_loops)58 static int mem_slab_free_test(int no_of_loops)
59 {
60 int i;
61
62 for (i = 0; i < no_of_loops; i++) {
63 k_mem_slab_free(&my_slab, slab_array[i]);
64 }
65
66 return i;
67 }
68
mem_slab_test(void)69 int mem_slab_test(void)
70 {
71 uint32_t t;
72 int i = 0;
73 int return_value = 0;
74
75 /* Test k_mem_slab_alloc. */
76 fprintf(output_file, sz_test_case_fmt,
77 "Memslab #1");
78 fprintf(output_file, sz_description,
79 "\n\tk_mem_slab_alloc");
80 printf(sz_test_start_fmt);
81
82 t = BENCH_START();
83 i = mem_slab_alloc_test(number_of_loops);
84 t = TIME_STAMP_DELTA_GET(t);
85
86 return_value += check_result(i, t);
87
88 /* Test k_mem_slab_free. */
89 fprintf(output_file, sz_test_case_fmt,
90 "Memslab #2");
91 fprintf(output_file, sz_description,
92 "\n\tk_mem_slab_free");
93 printf(sz_test_start_fmt);
94
95 t = BENCH_START();
96 i = mem_slab_free_test(number_of_loops);
97 t = TIME_STAMP_DELTA_GET(t);
98
99 /* Check if all slabs were freed. */
100 if (k_mem_slab_num_used_get(&my_slab) != 0) {
101 i = 0;
102 }
103
104 return_value += check_result(i, t);
105
106 return return_value;
107 }
108
