56 lines
1.3 KiB
C
56 lines
1.3 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (c) 2024 Meta Platforms, Inc. and affiliates.
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* Copyright (c) 2024 David Vernet <dvernet@meta.com>
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*/
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#include <bpf/bpf.h>
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#include <sched.h>
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#include <scx/common.h>
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#include <sys/wait.h>
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#include <unistd.h>
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#include "exit.bpf.skel.h"
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#include "scx_test.h"
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#include "exit_test.h"
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static enum scx_test_status run(void *ctx)
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{
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enum exit_test_case tc;
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for (tc = 0; tc < NUM_EXITS; tc++) {
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struct exit *skel;
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struct bpf_link *link;
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char buf[16];
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skel = exit__open();
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skel->rodata->exit_point = tc;
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exit__load(skel);
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link = bpf_map__attach_struct_ops(skel->maps.exit_ops);
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if (!link) {
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SCX_ERR("Failed to attach scheduler");
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exit__destroy(skel);
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return SCX_TEST_FAIL;
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}
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/* Assumes uei.kind is written last */
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while (skel->data->uei.kind == EXIT_KIND(SCX_EXIT_NONE))
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sched_yield();
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SCX_EQ(skel->data->uei.kind, EXIT_KIND(SCX_EXIT_UNREG_BPF));
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SCX_EQ(skel->data->uei.exit_code, tc);
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sprintf(buf, "%d", tc);
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SCX_ASSERT(!strcmp(skel->data->uei.msg, buf));
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bpf_link__destroy(link);
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exit__destroy(skel);
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}
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return SCX_TEST_PASS;
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}
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struct scx_test exit_test = {
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.name = "exit",
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.description = "Verify we can cleanly exit a scheduler in multiple places",
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.run = run,
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};
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REGISTER_SCX_TEST(&exit_test)
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