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// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
#include <test_progs.h>
#include <sys/mman.h>
#include <network_helpers.h>
#include <sys/user.h>
#ifndef PAGE_SIZE /* on some archs it comes in sys/user.h */
#include <unistd.h>
#define PAGE_SIZE getpagesize()
#endif
#include "bpf_arena_list.h"
#include "arena_list.skel.h"
struct elem {
struct arena_list_node node;
__u64 value;
};
static int list_sum(struct arena_list_head *head)
{
struct elem __arena *n;
int sum = 0;
list_for_each_entry(n, head, node)
sum += n->value;
return sum;
}
static void test_arena_list_add_del(int cnt)
{
LIBBPF_OPTS(bpf_test_run_opts, opts);
struct arena_list *skel;
int expected_sum = (u64)cnt * (cnt - 1) / 2;
int ret, sum;
skel = arena_list__open_and_load();
if (!ASSERT_OK_PTR(skel, "arena_list__open_and_load"))
return;
skel->bss->cnt = cnt;
ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.arena_list_add), &opts);
ASSERT_OK(ret, "ret_add");
ASSERT_OK(opts.retval, "retval");
if (skel->bss->skip) {
printf("%s:SKIP:compiler doesn't support arena_cast\n", __func__);
test__skip();
goto out;
}
sum = list_sum(skel->bss->list_head);
ASSERT_EQ(sum, expected_sum, "sum of elems");
ASSERT_EQ(skel->arena->arena_sum, expected_sum, "__arena sum of elems");
ASSERT_EQ(skel->arena->test_val, cnt + 1, "num of elems");
ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.arena_list_del), &opts);
ASSERT_OK(ret, "ret_del");
sum = list_sum(skel->bss->list_head);
ASSERT_EQ(sum, 0, "sum of list elems after del");
ASSERT_EQ(skel->bss->list_sum, expected_sum, "sum of list elems computed by prog");
ASSERT_EQ(skel->arena->arena_sum, expected_sum, "__arena sum of elems");
out:
arena_list__destroy(skel);
}
void test_arena_list(void)
{
if (test__start_subtest("arena_list_1"))
test_arena_list_add_del(1);
if (test__start_subtest("arena_list_1000"))
test_arena_list_add_del(1000);
}
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