bitmap.c

Go to the documentation of this file.

// SPDX-License-Identifier: GPL-2.0
#include <linux/compiler.h>
#include <linux/bitmap.h>
#include "tests.h"
#include "cpumap.h"
#include "debug.h"

#define NBITS 100

static unsigned long *get_bitmap(const char *str, int nbits)
{
    struct cpu_map *map = cpu_map__new(str);
    unsigned long *bm = NULL;
    int i;

    bm = bitmap_alloc(nbits);

    if (map && bm) {
        bitmap_zero(bm, nbits);

        for (i = 0; i < map->nr; i++)
            set_bit(map->map[i], bm);
    }

    if (map)
        cpu_map__put(map);
    return bm;
}

static int test_bitmap(const char *str)
{
    unsigned long *bm = get_bitmap(str, NBITS);
    char buf[100];
    int ret;

    bitmap_scnprintf(bm, NBITS, buf, sizeof(buf));
    pr_debug("bitmap: %s\n", buf);

    ret = !strcmp(buf, str);
    free(bm);
    return ret;
}

int test__bitmap_print(struct test *test __maybe_unused, int subtest __maybe_unused)
{
    TEST_ASSERT_VAL("failed to convert map", test_bitmap("1"));
    TEST_ASSERT_VAL("failed to convert map", test_bitmap("1,5"));
    TEST_ASSERT_VAL("failed to convert map", test_bitmap("1,3,5,7,9,11,13,15,17,19,21-40"));
    TEST_ASSERT_VAL("failed to convert map", test_bitmap("2-5"));
    TEST_ASSERT_VAL("failed to convert map", test_bitmap("1,3-6,8-10,24,35-37"));
    TEST_ASSERT_VAL("failed to convert map", test_bitmap("1,3-6,8-10,24,35-37"));
    TEST_ASSERT_VAL("failed to convert map", test_bitmap("1-10,12-20,22-30,32-40"));
    return 0;
}