1/// Helper macro to execute a system call that returns an `io::Result`.
2//
3// Macro must be defined before any modules that uses them.
4#[allow(unused_macros)]
5macro_rules! syscall {
6 ($fn: ident ( $($arg: expr),* $(,)* ) ) => {{
7 #[allow(unused_unsafe)]
8 let res = unsafe { libc::$fn($($arg, )*) };
9 if res < 0 {
10 Err(std::io::Error::last_os_error())
11 } else {
12 Ok(res)
13 }
14 }};
15}
16
17cfg_os_poll! {
18 #[cfg_attr(all(
19 not(mio_unsupported_force_poll_poll),
20 any(
21 target_os = "android",
22 target_os = "illumos",
23 target_os = "linux",
24 target_os = "redox",
25 )
26 ), path = "selector/epoll.rs")]
27 #[cfg_attr(all(
28 not(mio_unsupported_force_poll_poll),
29 any(
30 target_os = "dragonfly",
31 target_os = "freebsd",
32 target_os = "ios",
33 target_os = "macos",
34 target_os = "netbsd",
35 target_os = "openbsd",
36 target_os = "tvos",
37 target_os = "visionos",
38 target_os = "watchos",
39 )
40 ), path = "selector/kqueue.rs")]
41 #[cfg_attr(any(
42 mio_unsupported_force_poll_poll,
43 target_os = "aix",
44 target_os = "espidf",
45 target_os = "fuchsia",
46 target_os = "haiku",
47 target_os = "hermit",
48 target_os = "hurd",
49 target_os = "nto",
50 target_os = "solaris",
51 target_os = "vita",
52 ), path = "selector/poll.rs")]
53 mod selector;
54 pub(crate) use self::selector::*;
55
56 #[cfg_attr(all(
57 not(mio_unsupported_force_waker_pipe),
58 any(
59 target_os = "android",
60 target_os = "espidf",
61 target_os = "fuchsia",
62 target_os = "hermit",
63 target_os = "illumos",
64 target_os = "linux",
65 )
66 ), path = "waker/eventfd.rs")]
67 #[cfg_attr(all(
68 not(mio_unsupported_force_waker_pipe),
69 not(mio_unsupported_force_poll_poll), // `kqueue(2)` based waker doesn't work with `poll(2)`.
70 any(
71 target_os = "freebsd",
72 target_os = "ios",
73 target_os = "macos",
74 target_os = "tvos",
75 target_os = "visionos",
76 target_os = "watchos",
77 )
78 ), path = "waker/kqueue.rs")]
79 #[cfg_attr(any(
80 // NOTE: also add to the list list for the `pipe` module below.
81 mio_unsupported_force_waker_pipe,
82 all(
83 // `kqueue(2)` based waker doesn't work with `poll(2)`.
84 mio_unsupported_force_poll_poll,
85 any(
86 target_os = "freebsd",
87 target_os = "ios",
88 target_os = "macos",
89 target_os = "tvos",
90 target_os = "visionos",
91 target_os = "watchos",
92 ),
93 ),
94 target_os = "aix",
95 target_os = "dragonfly",
96 target_os = "haiku",
97 target_os = "hurd",
98 target_os = "netbsd",
99 target_os = "nto",
100 target_os = "openbsd",
101 target_os = "redox",
102 target_os = "solaris",
103 target_os = "vita",
104 ), path = "waker/pipe.rs")]
105 mod waker;
106 // NOTE: the `Waker` type is expected in the selector module as the
107 // `poll(2)` implementation needs to do some special stuff.
108
109 mod sourcefd;
110 #[cfg(feature = "os-ext")]
111 pub use self::sourcefd::SourceFd;
112
113 cfg_net! {
114 mod net;
115
116 pub(crate) mod tcp;
117 pub(crate) mod udp;
118 #[cfg(not(target_os = "hermit"))]
119 pub(crate) mod uds;
120 }
121
122 #[cfg(all(
123 any(
124 // For the public `pipe` module, must match `cfg_os_ext` macro.
125 feature = "os-ext",
126 // For the `Waker` type based on a pipe.
127 mio_unsupported_force_waker_pipe,
128 all(
129 // `kqueue(2)` based waker doesn't work with `poll(2)`.
130 mio_unsupported_force_poll_poll,
131 any(
132 target_os = "freebsd",
133 target_os = "ios",
134 target_os = "macos",
135 target_os = "tvos",
136 target_os = "visionos",
137 target_os = "watchos",
138 ),
139 ),
140 // NOTE: also add to the list list for the `pipe` module below.
141 target_os = "aix",
142 target_os = "dragonfly",
143 target_os = "haiku",
144 target_os = "hurd",
145 target_os = "netbsd",
146 target_os = "nto",
147 target_os = "openbsd",
148 target_os = "redox",
149 target_os = "solaris",
150 target_os = "vita",
151 ),
152 // Hermit doesn't support pipes.
153 not(target_os = "hermit"),
154 ))]
155 pub(crate) mod pipe;
156}
157
158cfg_not_os_poll! {
159 cfg_any_os_ext! {
160 mod sourcefd;
161 #[cfg(feature = "os-ext")]
162 pub use self::sourcefd::SourceFd;
163 }
164}
165