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// SPDX-License-Identifier: GPL-2.0
#include <test_progs.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/mman.h>
#include <pthread.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include "test_send_signal_kern.skel.h"
static void sigusr1_handler(int signum)
{
}
#define THREAD_COUNT 100
static void *worker(void *p)
{
int i;
for ( i = 0; i < 1000; i++)
usleep(1);
return NULL;
}
void test_send_signal_sched_switch(void)
{
struct test_send_signal_kern *skel;
pthread_t threads[THREAD_COUNT];
u32 duration = 0;
int i, err;
signal(SIGUSR1, sigusr1_handler);
skel = test_send_signal_kern__open_and_load();
if (CHECK(!skel, "skel_open_and_load", "skeleton open_and_load failed\n"))
return;
skel->bss->pid = getpid();
skel->bss->sig = SIGUSR1;
err = test_send_signal_kern__attach(skel);
if (CHECK(err, "skel_attach", "skeleton attach failed\n"))
goto destroy_skel;
for (i = 0; i < THREAD_COUNT; i++) {
err = pthread_create(threads + i, NULL, worker, NULL);
if (CHECK(err, "pthread_create", "Error creating thread, %s\n",
strerror(errno)))
goto destroy_skel;
}
for (i = 0; i < THREAD_COUNT; i++)
pthread_join(threads[i], NULL);
destroy_skel:
test_send_signal_kern__destroy(skel);
}
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