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77 lines
2.7 KiB
77 lines
2.7 KiB
/*
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* Copyright (C) 2021 The Android Open Source Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#pragma once
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/**
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* @file sys/pidfd.h
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* @brief File descriptors representing processes.
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*/
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#include <sys/cdefs.h>
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#include <sys/types.h>
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#include <bits/signal_types.h>
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__BEGIN_DECLS
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/**
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* [pidfd_open(2)](https://man7.org/linux/man-pages/man2/pidfd_open.2.html)
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* opens a file descriptor that refers to a process. This file descriptor will
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* have the close-on-exec flag set by default.
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*
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* Returns a new file descriptor on success and returns -1 and sets `errno` on
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* failure.
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*
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* Available since API level 31.
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*/
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int pidfd_open(pid_t __pid, unsigned int __flags) __INTRODUCED_IN(31);
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/**
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* [pidfd_getfd(2)](https://man7.org/linux/man-pages/man2/pidfd_open.2.html)
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* dups a file descriptor from another process. This file descriptor will have
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* the close-on-exec flag set by default.
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*
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* Returns a new file descriptor on success and returns -1 and sets `errno` on
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* failure.
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*
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* Available since API level 31.
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*/
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int pidfd_getfd(int __pidfd, int __targetfd, unsigned int __flags) __INTRODUCED_IN(31);
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/**
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* [pidfd_send_signal(2)](https://man7.org/linux/man-pages/man2/pidfd_send_signal.2.html)
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* sends a signal to another process.
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*
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* Returns 0 on success and returns -1 and sets `errno` on failure.
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*
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* Available since API level 31.
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*/
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int pidfd_send_signal(int __pidfd, int __sig, siginfo_t *__info, unsigned int __flags) __INTRODUCED_IN(31);
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__END_DECLS
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