1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
|
//===----------------------------------------------------------------------===//
//
// This source file is part of the SwiftNIO open source project
//
// Copyright (c) 2017-2021 Apple Inc. and the SwiftNIO project authors
// Licensed under Apache License v2.0
//
// See LICENSE.txt for license information
// See CONTRIBUTORS.txt for the list of SwiftNIO project authors
//
// SPDX-License-Identifier: Apache-2.0
//
//===----------------------------------------------------------------------===//
// This is a companion to System.swift that provides only Linux specials: either things that exist
// only on Linux, or things that have Linux-specific extensions.
#if os(Linux) || os(Android)
import CNIOLinux
internal enum TimerFd {
internal static let TFD_CLOEXEC = CNIOLinux.TFD_CLOEXEC
internal static let TFD_NONBLOCK = CNIOLinux.TFD_NONBLOCK
@inline(never)
internal static func timerfd_settime(fd: CInt, flags: CInt, newValue: UnsafePointer<itimerspec>, oldValue: UnsafeMutablePointer<itimerspec>?) throws {
_ = try syscall(blocking: false) {
CNIOLinux.timerfd_settime(fd, flags, newValue, oldValue)
}
}
@inline(never)
internal static func timerfd_create(clockId: CInt, flags: CInt) throws -> CInt {
return try syscall(blocking: false) {
CNIOLinux.timerfd_create(clockId, flags)
}.result
}
}
internal enum EventFd {
internal static let EFD_CLOEXEC = CNIOLinux.EFD_CLOEXEC
internal static let EFD_NONBLOCK = CNIOLinux.EFD_NONBLOCK
internal typealias eventfd_t = CNIOLinux.eventfd_t
@inline(never)
internal static func eventfd_write(fd: CInt, value: UInt64) throws -> CInt {
return try syscall(blocking: false) {
CNIOLinux.eventfd_write(fd, value)
}.result
}
@inline(never)
internal static func eventfd_read(fd: CInt, value: UnsafeMutablePointer<UInt64>) throws -> CInt {
return try syscall(blocking: false) {
CNIOLinux.eventfd_read(fd, value)
}.result
}
@inline(never)
internal static func eventfd(initval: CUnsignedInt, flags: CInt) throws -> CInt {
return try syscall(blocking: false) {
// Note: Please do _not_ remove the `numericCast`, this is to allow compilation in Ubuntu 14.04 and
// other Linux distros which ship a glibc from before this commit:
// https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=69eb9a183c19e8739065e430758e4d3a2c5e4f1a
// which changes the first argument from `CInt` to `CUnsignedInt` (from Sat, 20 Sep 2014).
CNIOLinux.eventfd(numericCast(initval), flags)
}.result
}
}
internal enum Epoll {
internal typealias epoll_event = CNIOLinux.epoll_event
internal static let EPOLL_CTL_ADD: CInt = numericCast(CNIOLinux.EPOLL_CTL_ADD)
internal static let EPOLL_CTL_MOD: CInt = numericCast(CNIOLinux.EPOLL_CTL_MOD)
internal static let EPOLL_CTL_DEL: CInt = numericCast(CNIOLinux.EPOLL_CTL_DEL)
#if os(Android)
internal static let EPOLLIN: CUnsignedInt = 1 //numericCast(CNIOLinux.EPOLLIN)
internal static let EPOLLOUT: CUnsignedInt = 4 //numericCast(CNIOLinux.EPOLLOUT)
internal static let EPOLLERR: CUnsignedInt = 8 // numericCast(CNIOLinux.EPOLLERR)
internal static let EPOLLRDHUP: CUnsignedInt = 8192 //numericCast(CNIOLinux.EPOLLRDHUP)
internal static let EPOLLHUP: CUnsignedInt = 16 //numericCast(CNIOLinux.EPOLLHUP)
internal static let EPOLLET: CUnsignedInt = 2147483648 //numericCast(CNIOLinux.EPOLLET)
#elseif canImport(Musl)
internal static let EPOLLIN: CUnsignedInt = numericCast(CNIOLinux.EPOLLIN)
internal static let EPOLLOUT: CUnsignedInt = numericCast(CNIOLinux.EPOLLOUT)
internal static let EPOLLERR: CUnsignedInt = numericCast(CNIOLinux.EPOLLERR)
internal static let EPOLLRDHUP: CUnsignedInt = numericCast(CNIOLinux.EPOLLRDHUP)
internal static let EPOLLHUP: CUnsignedInt = numericCast(CNIOLinux.EPOLLHUP)
internal static let EPOLLET: CUnsignedInt = numericCast(CNIOLinux.EPOLLET)
#else
internal static let EPOLLIN: CUnsignedInt = numericCast(CNIOLinux.EPOLLIN.rawValue)
internal static let EPOLLOUT: CUnsignedInt = numericCast(CNIOLinux.EPOLLOUT.rawValue)
internal static let EPOLLERR: CUnsignedInt = numericCast(CNIOLinux.EPOLLERR.rawValue)
internal static let EPOLLRDHUP: CUnsignedInt = numericCast(CNIOLinux.EPOLLRDHUP.rawValue)
internal static let EPOLLHUP: CUnsignedInt = numericCast(CNIOLinux.EPOLLHUP.rawValue)
internal static let EPOLLET: CUnsignedInt = numericCast(CNIOLinux.EPOLLET.rawValue)
#endif
internal static let ENOENT: CUnsignedInt = numericCast(CNIOLinux.ENOENT)
@inline(never)
internal static func epoll_create(size: CInt) throws -> CInt {
return try syscall(blocking: false) {
CNIOLinux.epoll_create(size)
}.result
}
@inline(never)
@discardableResult
internal static func epoll_ctl(epfd: CInt, op: CInt, fd: CInt, event: UnsafeMutablePointer<epoll_event>) throws -> CInt {
return try syscall(blocking: false) {
CNIOLinux.epoll_ctl(epfd, op, fd, event)
}.result
}
@inline(never)
internal static func epoll_wait(epfd: CInt, events: UnsafeMutablePointer<epoll_event>, maxevents: CInt, timeout: CInt) throws -> CInt {
return try syscall(blocking: false) {
CNIOLinux.epoll_wait(epfd, events, maxevents, timeout)
}.result
}
}
internal enum Linux {
#if os(Android)
static let SOCK_CLOEXEC = Glibc.SOCK_CLOEXEC
static let SOCK_NONBLOCK = Glibc.SOCK_NONBLOCK
#elseif canImport(Musl)
static let SOCK_CLOEXEC = Musl.SOCK_CLOEXEC
static let SOCK_NONBLOCK = Musl.SOCK_NONBLOCK
#else
static let SOCK_CLOEXEC = CInt(bitPattern: Glibc.SOCK_CLOEXEC.rawValue)
static let SOCK_NONBLOCK = CInt(bitPattern: Glibc.SOCK_NONBLOCK.rawValue)
#endif
@inline(never)
internal static func accept4(descriptor: CInt,
addr: UnsafeMutablePointer<sockaddr>?,
len: UnsafeMutablePointer<socklen_t>?,
flags: CInt) throws -> CInt? {
guard case let .processed(fd) = try syscall(blocking: true, {
CNIOLinux.CNIOLinux_accept4(descriptor, addr, len, flags)
}) else {
return nil
}
return fd
}
}
#endif
|
