root/tools/lib/perf/tests/test-threadmap.c
// SPDX-License-Identifier: GPL-2.0
#include <stdarg.h>
#include <stdio.h>
#include <perf/threadmap.h>
#include <internal/tests.h>
#include "tests.h"

static int libperf_print(enum libperf_print_level level,
                         const char *fmt, va_list ap)
{
        return vfprintf(stderr, fmt, ap);
}

static int test_threadmap_array(int nr, pid_t *array)
{
        struct perf_thread_map *threads;
        int i;

        threads = perf_thread_map__new_array(nr, array);
        __T("Failed to allocate new thread map", threads);

        __T("Unexpected number of threads", perf_thread_map__nr(threads) == nr);

        for (i = 0; i < nr; i++) {
                __T("Unexpected initial value of thread",
                    perf_thread_map__pid(threads, i) == (array ? array[i] : -1));
        }

        for (i = 1; i < nr; i++)
                perf_thread_map__set_pid(threads, i, i * 100);

        __T("Unexpected value of thread 0",
            perf_thread_map__pid(threads, 0) == (array ? array[0] : -1));

        for (i = 1; i < nr; i++) {
                __T("Unexpected thread value",
                    perf_thread_map__pid(threads, i) == i * 100);
        }

        perf_thread_map__put(threads);

        return 0;
}

#define THREADS_NR      10
int test_threadmap(int argc, char **argv)
{
        struct perf_thread_map *threads;
        pid_t thr_array[THREADS_NR];
        int i;

        __T_START;

        libperf_init(libperf_print);

        threads = perf_thread_map__new_dummy();
        if (!threads)
                return -1;

        perf_thread_map__get(threads);
        perf_thread_map__put(threads);
        perf_thread_map__put(threads);

        test_threadmap_array(THREADS_NR, NULL);

        for (i = 0; i < THREADS_NR; i++)
                thr_array[i] = i + 100;

        test_threadmap_array(THREADS_NR, thr_array);

        __T_END;
        return tests_failed == 0 ? 0 : -1;
}