1 /*
2 * Copyright (C) 2013 The Android Open Source Project
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in
12 * the documentation and/or other materials provided with the
13 * distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29 #include <errno.h>
30 #include <sys/epoll.h>
31
32 #include "private/SigSetConverter.h"
33 #include "private/bionic_fdtrack.h"
34
35 extern "C" int __epoll_create1(int flags);
36 extern "C" int __epoll_pwait(int, epoll_event*, int, int, const sigset64_t*, size_t);
37
epoll_create(int size)38 int epoll_create(int size) {
39 if (size <= 0) {
40 errno = EINVAL;
41 return -1;
42 }
43 return FDTRACK_CREATE(__epoll_create1(0));
44 }
45
epoll_create1(int flags)46 int epoll_create1(int flags) {
47 return FDTRACK_CREATE(__epoll_create1(flags));
48 }
49
epoll_pwait(int fd,epoll_event * events,int max_events,int timeout,const sigset_t * ss)50 int epoll_pwait(int fd, epoll_event* events, int max_events, int timeout, const sigset_t* ss) {
51 SigSetConverter set;
52 sigset64_t* ss_ptr = nullptr;
53 if (ss != nullptr) {
54 set = {};
55 set.sigset = *ss;
56 ss_ptr = &set.sigset64;
57 }
58 return epoll_pwait64(fd, events, max_events, timeout, ss_ptr);
59 }
60
epoll_pwait64(int fd,epoll_event * events,int max_events,int timeout,const sigset64_t * ss)61 int epoll_pwait64(int fd, epoll_event* events, int max_events, int timeout, const sigset64_t* ss) {
62 return __epoll_pwait(fd, events, max_events, timeout, ss, sizeof(*ss));
63 }
64
epoll_wait(int fd,struct epoll_event * events,int max_events,int timeout)65 int epoll_wait(int fd, struct epoll_event* events, int max_events, int timeout) {
66 return epoll_pwait64(fd, events, max_events, timeout, nullptr);
67 }
68