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