// SPDX-License-Identifier: GPL-2.0
#include <test_progs.h>
#include "stacktrace_map_skip.skel.h"

#define TEST_STACK_DEPTH  2

void test_stacktrace_map_skip(void)
{
        struct stacktrace_map_skip *skel;
        int stackid_hmap_fd, stackmap_fd, stack_amap_fd;
        int err, stack_trace_len;

        skel = stacktrace_map_skip__open_and_load();
        if (!ASSERT_OK_PTR(skel, "skel_open_and_load"))
                return;

        /* find map fds */
        stackid_hmap_fd = bpf_map__fd(skel->maps.stackid_hmap);
        if (!ASSERT_GE(stackid_hmap_fd, 0, "stackid_hmap fd"))
                goto out;

        stackmap_fd = bpf_map__fd(skel->maps.stackmap);
        if (!ASSERT_GE(stackmap_fd, 0, "stackmap fd"))
                goto out;

        stack_amap_fd = bpf_map__fd(skel->maps.stack_amap);
        if (!ASSERT_GE(stack_amap_fd, 0, "stack_amap fd"))
                goto out;

        skel->bss->pid = getpid();

        err = stacktrace_map_skip__attach(skel);
        if (!ASSERT_OK(err, "skel_attach"))
                goto out;

        /* give some time for bpf program run */
        sleep(1);

        /* disable stack trace collection */
        skel->bss->control = 1;

        /* for every element in stackid_hmap, we can find a corresponding one
         * in stackmap, and vice versa.
         */
        err = compare_map_keys(stackid_hmap_fd, stackmap_fd);
        if (!ASSERT_OK(err, "compare_map_keys stackid_hmap vs. stackmap"))
                goto out;

        err = compare_map_keys(stackmap_fd, stackid_hmap_fd);
        if (!ASSERT_OK(err, "compare_map_keys stackmap vs. stackid_hmap"))
                goto out;

        stack_trace_len = TEST_STACK_DEPTH * sizeof(__u64);
        err = compare_stack_ips(stackmap_fd, stack_amap_fd, stack_trace_len);
        if (!ASSERT_OK(err, "compare_stack_ips stackmap vs. stack_amap"))
                goto out;

        if (!ASSERT_EQ(skel->bss->failed, 0, "skip_failed"))
                goto out;

out:
        stacktrace_map_skip__destroy(skel);
}