| Josh Gao | 3de1915 | 2021-02-22 18:09:48 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2021 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 | #pragma once |
| 29 | |
| 30 | /** |
| 31 | * @file sys/pidfd.h |
| 32 | * @brief File descriptors representing processes. |
| 33 | */ |
| 34 | |
| 35 | #include <sys/cdefs.h> |
| 36 | #include <sys/types.h> |
| 37 | |
| 38 | #include <bits/signal_types.h> |
| 39 | |
| 40 | __BEGIN_DECLS |
| 41 | |
| 42 | /** |
| 43 | * [pidfd_open(2)](https://man7.org/linux/man-pages/man2/pidfd_open.2.html) |
| 44 | * opens a file descriptor that refers to a process. This file descriptor will |
| 45 | * have the close-on-exec flag set by default. |
| 46 | * |
| 47 | * Returns a new file descriptor on success and returns -1 and sets `errno` on |
| 48 | * failure. |
| 49 | * |
| 50 | * Available since API level 31. |
| 51 | */ |
| 52 | int pidfd_open(pid_t __pid, unsigned int __flags) __INTRODUCED_IN(31); |
| 53 | |
| 54 | /** |
| 55 | * [pidfd_getfd(2)](https://man7.org/linux/man-pages/man2/pidfd_open.2.html) |
| 56 | * dups a file descriptor from another process. This file descriptor will have |
| 57 | * the close-on-exec flag set by default. |
| 58 | * |
| 59 | * Returns a new file descriptor on success and returns -1 and sets `errno` on |
| 60 | * failure. |
| 61 | * |
| 62 | * Available since API level 31. |
| 63 | */ |
| 64 | int pidfd_getfd(int __pidfd, int __targetfd, unsigned int __flags) __INTRODUCED_IN(31); |
| 65 | |
| 66 | /** |
| 67 | * [pidfd_send_signal(2)](https://man7.org/linux/man-pages/man2/pidfd_send_signal.2.html) |
| 68 | * sends a signal to another process. |
| 69 | * |
| 70 | * Returns 0 on success and returns -1 and sets `errno` on failure. |
| 71 | * |
| 72 | * Available since API level 31. |
| 73 | */ |
| 74 | int pidfd_send_signal(int __pidfd, int __sig, siginfo_t *__info, unsigned int __flags) __INTRODUCED_IN(31); |
| 75 | |
| 76 | __END_DECLS |