[redis.git] / deps / jemalloc / test / thread_arena.c

#define JEMALLOC_MANGLE
#include "jemalloc_test.h"

#define NTHREADS 10

void *
je_thread_start(void *arg)
{
        unsigned main_arena_ind = *(unsigned *)arg;
        void *p;
        unsigned arena_ind;
        size_t size;
        int err;

        p = malloc(1);
        if (p == NULL) {
                malloc_printf("%s(): Error in malloc()\n", __func__);
                return (void *)1;
        }

        size = sizeof(arena_ind);
        if ((err = mallctl("thread.arena", &arena_ind, &size, &main_arena_ind,
            sizeof(main_arena_ind)))) {
                malloc_printf("%s(): Error in mallctl(): %s\n", __func__,
                    strerror(err));
                return (void *)1;
        }

        size = sizeof(arena_ind);
        if ((err = mallctl("thread.arena", &arena_ind, &size, NULL,
            0))) {
                malloc_printf("%s(): Error in mallctl(): %s\n", __func__,
                    strerror(err));
                return (void *)1;
        }
        assert(arena_ind == main_arena_ind);

        return (NULL);
}

int
main(void)
{
        int ret = 0;
        void *p;
        unsigned arena_ind;
        size_t size;
        int err;
        je_thread_t threads[NTHREADS];
        unsigned i;

        malloc_printf("Test begin\n");

        p = malloc(1);
        if (p == NULL) {
                malloc_printf("%s(): Error in malloc()\n", __func__);
                ret = 1;
                goto label_return;
        }

        size = sizeof(arena_ind);
        if ((err = mallctl("thread.arena", &arena_ind, &size, NULL, 0))) {
                malloc_printf("%s(): Error in mallctl(): %s\n", __func__,
                    strerror(err));
                ret = 1;
                goto label_return;
        }

        for (i = 0; i < NTHREADS; i++) {
                je_thread_create(&threads[i], je_thread_start,
                    (void *)&arena_ind);
        }

        for (i = 0; i < NTHREADS; i++)
                je_thread_join(threads[i], (void *)&ret);

label_return:
        malloc_printf("Test end\n");
        return (ret);
}