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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (c) 2024 Meta Platforms, Inc. and affiliates.
* Copyright (c) 2024 David Vernet <dvernet@meta.com>
* Copyright (c) 2024 Tejun Heo <tj@kernel.org>
*/
#include <bpf/bpf.h>
#include <scx/common.h>
#include <sys/wait.h>
#include <unistd.h>
#include "select_cpu_vtime.bpf.skel.h"
#include "scx_test.h"
static enum scx_test_status setup(void **ctx)
{
struct select_cpu_vtime *skel;
skel = select_cpu_vtime__open_and_load();
SCX_FAIL_IF(!skel, "Failed to open and load skel");
*ctx = skel;
return SCX_TEST_PASS;
}
static enum scx_test_status run(void *ctx)
{
struct select_cpu_vtime *skel = ctx;
struct bpf_link *link;
SCX_ASSERT(!skel->bss->consumed);
link = bpf_map__attach_struct_ops(skel->maps.select_cpu_vtime_ops);
SCX_FAIL_IF(!link, "Failed to attach scheduler");
sleep(1);
SCX_ASSERT(skel->bss->consumed);
bpf_link__destroy(link);
return SCX_TEST_PASS;
}
static void cleanup(void *ctx)
{
struct select_cpu_vtime *skel = ctx;
select_cpu_vtime__destroy(skel);
}
struct scx_test select_cpu_vtime = {
.name = "select_cpu_vtime",
.description = "Test doing direct vtime-dispatching from "
"ops.select_cpu(), to a non-built-in DSQ",
.setup = setup,
.run = run,
.cleanup = cleanup,
};
REGISTER_SCX_TEST(&select_cpu_vtime)
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