655e430b28
The NDK no longer supports API levels earlier than 21. This *doesn't* include <ctype.h> because I have a separate change rewriting that (that's blocked on the upcoming libc++ update). Test: treehugger Change-Id: I53e915f27011dfc0513e0c78d8799377e183ceca
75 lines
2.9 KiB
C
75 lines
2.9 KiB
C
/*
|
|
* Copyright (C) 2008 The Android Open Source Project
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* * Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* * Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the
|
|
* distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
|
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
|
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
|
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
|
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
|
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
|
|
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
/**
|
|
* @file poll.h
|
|
* @brief Wait for events on a set of file descriptors.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
#include <linux/poll.h>
|
|
#include <signal.h> /* For sigset_t. */
|
|
#include <time.h> /* For timespec. */
|
|
|
|
__BEGIN_DECLS
|
|
|
|
/** The type of a file descriptor count, used by poll() and ppoll(). */
|
|
typedef unsigned int nfds_t;
|
|
|
|
/**
|
|
* [poll(3)](http://man7.org/linux/man-pages/man3/poll.3.html) waits on a set of file descriptors.
|
|
*
|
|
* Returns the number of ready file descriptors on success, 0 for timeout,
|
|
* and returns -1 and sets `errno` on failure.
|
|
*/
|
|
int poll(struct pollfd* _Nullable __fds, nfds_t __count, int __timeout_ms);
|
|
|
|
/**
|
|
* [ppoll(3)](http://man7.org/linux/man-pages/man3/ppoll.3.html) waits on a set of file descriptors
|
|
* or a signal. Set `__timeout` to null for no timeout. Set `__mask` to null to not set the signal
|
|
* mask.
|
|
*
|
|
* Returns the number of ready file descriptors on success, 0 for timeout,
|
|
* and returns -1 and sets `errno` on failure.
|
|
*/
|
|
int ppoll(struct pollfd* _Nullable __fds, nfds_t __count, const struct timespec* _Nullable __timeout, const sigset_t* _Nullable __mask);
|
|
|
|
/**
|
|
* Like ppoll() but allows setting a signal mask with RT signals even from a 32-bit process.
|
|
*/
|
|
int ppoll64(struct pollfd* _Nullable __fds, nfds_t __count, const struct timespec* _Nullable __timeout, const sigset64_t* _Nullable __mask) __INTRODUCED_IN(28);
|
|
|
|
#if defined(__BIONIC_INCLUDE_FORTIFY_HEADERS)
|
|
#define _POLL_H_
|
|
#include <bits/fortify/poll.h>
|
|
#undef _POLL_H_
|
|
#endif
|
|
|
|
__END_DECLS
|