Quelle  hash_large_key.c   Sprache: C

// SPDX-License-Identifier: GPL-2.0

#include <test_progs.h>
#include "test_hash_large_key.skel.h"

void test_hash_large_key(void)
{
 int err, value = 21, duration = 0, hash_map_fd;
 struct test_hash_large_key *skel;

 struct bigelement {
  int a;
  char b[4096];
  long long c;
 } key;
 bzero(&key, sizeof(key));

 skel = test_hash_large_key__open_and_load();
 if (CHECK(!skel, "skel_open_and_load", "skeleton open/load failed\n"))
  return;

 hash_map_fd = bpf_map__fd(skel->maps.hash_map);
 if (CHECK(hash_map_fd < 0, "bpf_map__fd", "failed\n"))
  goto cleanup;

 err = test_hash_large_key__attach(skel);
 if (CHECK(err, "attach_raw_tp", "err %d\n", err))
  goto cleanup;

 err = bpf_map_update_elem(hash_map_fd, &key, &value, BPF_ANY);
 if (CHECK(err, "bpf_map_update_elem", "errno=%d\n", errno))
  goto cleanup;

 key.c = 1;
 err = bpf_map_lookup_elem(hash_map_fd, &key, &value);
 if (CHECK(err, "bpf_map_lookup_elem", "errno=%d\n", errno))
  goto cleanup;

 CHECK_FAIL(value != 42);

cleanup:
 test_hash_large_key__destroy(skel);
}