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/*
* This file and its contents are supplied under the terms of the
* Common Development and Distribution License ("CDDL"), version 1.0.
* You may only use this file in accordance with the terms of version
* 1.0 of the CDDL.
*
* A full copy of the text of the CDDL should have accompanied this
* source. A copy of the CDDL is also available via the Internet at
* http://www.illumos.org/license/CDDL.
*/
/*
* Copyright 2022 Oxide Computer Company
*/
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <fcntl.h>
#include <port.h>
#include <err.h>
#include <assert.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/param.h>
#include <sys/poll.h>
#include <stdbool.h>
static bool
has_event(int pfd)
{
port_event_t ev = { 0 };
timespec_t ts = { 0 };
/* Because of illumos 14912, more care needs to be taken here */
int res = port_get(pfd, &ev, &ts);
if (res != 0 || ev.portev_source == 0) {
return (false);
} else {
return (true);
}
}
int
main(int argc, char *argv[])
{
int res;
int pipes[2];
res = pipe2(pipes, 0);
assert(res == 0);
int pfd = port_create();
assert(pfd >= 0);
res = port_associate(pfd, PORT_SOURCE_FD, (uintptr_t)pipes[1], POLLIN,
NULL);
assert(res == 0);
if (has_event(pfd)) {
errx(EXIT_FAILURE, "FAIL - unexpected early event");
}
char port_path[MAXPATHLEN];
(void) sprintf(port_path, "/proc/%d/fd/%d", getpid(), pfd);
/* incur the procfs FDINFO access */
struct stat sbuf;
res = lstat(port_path, &sbuf);
assert(res == 0);
/* write a byte to wake up the pipe */
(void) write(pipes[0], port_path, 1);
/*
* Check to see that the FDINFO access did not detach our registration
* for the event port.
*/
if (!has_event(pfd)) {
errx(EXIT_FAILURE, "FAIL - no event found");
}
(void) printf("PASS\n");
return (EXIT_SUCCESS);
}
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