2 * SPDX-License-Identifier: MIT
4 * Copyright (c) 2005-2020 Rich Felker, et al.
5 * Copyright (c) 2020 Greg V
7 * Permission is hereby granted, free of charge, to any person obtaining
8 * a copy of this software and associated documentation files (the
9 * "Software"), to deal in the Software without restriction, including
10 * without limitation the rights to use, copy, modify, merge, publish,
11 * distribute, sublicense, and/or sell copies of the Software, and to
12 * permit persons to whom the Software is furnished to do so, subject to
13 * the following conditions:
15 * The above copyright notice and this permission notice shall be
16 * included in all copies or substantial portions of the Software.
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
19 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
21 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
22 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
30 #include "namespace.h"
31 #include <sys/eventfd.h>
32 #include <sys/specialfd.h>
34 #include "un-namespace.h"
35 #include "libc_private.h"
37 int eventfd(unsigned int initval, int flags)
39 struct specialfd_eventfd args;
41 args.initval = initval;
43 return (__sys___specialfd(SPECIALFD_EVENTFD, &args, sizeof(args)));
46 int eventfd_read(int fd, eventfd_t *value)
48 return (sizeof(*value) == _read(fd, value, sizeof(*value)) ? 0 : -1);
51 int eventfd_write(int fd, eventfd_t value)
53 return (sizeof(value) == _write(fd, &value, sizeof(value)) ? 0 : -1);