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#include "../config-host.h"
/* SPDX-License-Identifier: MIT */
/*
* Description: test pollfree wakeups
*/
#include <fcntl.h>
#include <stdio.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/signalfd.h>
#include <unistd.h>
#include <stdlib.h>
#include "liburing.h"
#include "helpers.h"
static int no_signalfd;
static int child(int flags)
{
struct io_uring_sqe *sqe;
struct io_uring ring;
struct signalfd_siginfo si;
static unsigned long index;
sigset_t mask;
int ret, fd;
ret = io_uring_queue_init(4, &ring, flags);
if (ret) {
if (ret == -EINVAL)
return 0;
fprintf(stderr, "queue init failed %d\n", ret);
return ret;
}
sigemptyset(&mask);
sigaddset(&mask, SIGINT);
fd = signalfd(-1, &mask, SFD_NONBLOCK);
if (fd < 0) {
no_signalfd = 1;
perror("signalfd");
return 1;
}
sqe = io_uring_get_sqe(&ring);
io_uring_prep_read(sqe, fd, &si, sizeof(si), 0);
sqe->user_data = 1;
io_uring_submit(&ring);
sqe = io_uring_get_sqe(&ring);
io_uring_prep_read(sqe, fd, &si, sizeof(si), 0);
sqe->user_data = 2;
sqe->flags |= IOSQE_ASYNC;
io_uring_submit(&ring);
sqe = io_uring_get_sqe(&ring);
io_uring_prep_read(sqe, fd, &si, sizeof(si), 0);
sqe->user_data = 3;
io_uring_submit(&ring);
if (!(++index & 7))
usleep(100);
return 0;
}
static int run_test(int flags)
{
pid_t pid;
int ret;
pid = fork();
if (pid < 0) {
perror("fork");
return 1;
} else if (!pid) {
ret = child(flags);
_exit(ret);
} else {
int wstatus;
pid_t childpid;
do {
childpid = waitpid(pid, &wstatus, 0);
} while (childpid == (pid_t) -1 && (errno == EINTR));
if (errno == ECHILD)
wstatus = 0;
return wstatus;
}
}
static int test(int flags)
{
struct timeval start;
int ret;
gettimeofday(&start, NULL);
do {
ret = run_test(flags);
if (ret) {
fprintf(stderr, "test failed with flags %x\n", flags);
return 1;
}
if (no_signalfd)
break;
} while (mtime_since_now(&start) < 2500);
return 0;
}
int main(int argc, char *argv[])
{
int ret;
if (argc > 1)
return T_EXIT_SKIP;
ret = test(0);
if (ret) {
fprintf(stderr, "test 0 failed: %d\n", ret);
return ret;
}
if (no_signalfd)
return T_EXIT_SKIP;
ret = test(IORING_SETUP_SQPOLL);
if (ret) {
fprintf(stderr, "test SQPOLL failed: %d\n", ret);
return ret;
}
ret = test(IORING_SETUP_COOP_TASKRUN);
if (ret) {
fprintf(stderr, "test COOP failed: %d\n", ret);
return ret;
}
ret = test(IORING_SETUP_DEFER_TASKRUN|IORING_SETUP_SINGLE_ISSUER);
if (ret) {
fprintf(stderr, "test DEFER failed: %d\n", ret);
return ret;
}
return T_EXIT_PASS;
}
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