mio/
macros.rs

1//! Macros to ease conditional code based on enabled features.
2
3// Depending on the features not all macros are used.
4#![allow(unused_macros)]
5
6/// The `os-poll` feature is enabled.
7macro_rules! cfg_os_poll {
8    ($($item:item)*) => {
9        $(
10            #[cfg(feature = "os-poll")]
11            #[cfg_attr(docsrs, doc(cfg(feature = "os-poll")))]
12            $item
13        )*
14    }
15}
16
17/// The `os-poll` feature is disabled.
18macro_rules! cfg_not_os_poll {
19    ($($item:item)*) => {
20        $(
21            #[cfg(not(feature = "os-poll"))]
22            $item
23        )*
24    }
25}
26
27/// The `os-ext` feature is enabled.
28macro_rules! cfg_os_ext {
29    ($($item:item)*) => {
30        $(
31            #[cfg(feature = "os-ext")]
32            #[cfg_attr(docsrs, doc(cfg(feature = "os-ext")))]
33            $item
34        )*
35    }
36}
37
38/// The `net` feature is enabled.
39macro_rules! cfg_net {
40    ($($item:item)*) => {
41        $(
42            #[cfg(feature = "net")]
43            #[cfg_attr(docsrs, doc(cfg(feature = "net")))]
44            $item
45        )*
46    }
47}
48
49/// One of the features enabled that needs `IoSource`. That is `net` or `os-ext`
50/// on Unix (for `pipe`).
51macro_rules! cfg_io_source {
52    ($($item:item)*) => {
53        $(
54            #[cfg(any(feature = "net", all(unix, feature = "os-ext")))]
55            #[cfg_attr(docsrs, doc(cfg(any(feature = "net", all(unix, feature = "os-ext")))))]
56            $item
57        )*
58    }
59}
60
61/// The `os-ext` feature is enabled, or one of the features that need `os-ext`.
62macro_rules! cfg_any_os_ext {
63    ($($item:item)*) => {
64        $(
65            #[cfg(any(feature = "os-ext", feature = "net"))]
66            #[cfg_attr(docsrs, doc(cfg(any(feature = "os-ext", feature = "net"))))]
67            $item
68        )*
69    }
70}
71
72macro_rules! trace {
73    ($($t:tt)*) => {
74        log!(trace, $($t)*)
75    }
76}
77
78macro_rules! warn {
79    ($($t:tt)*) => {
80        log!(warn, $($t)*)
81    }
82}
83
84macro_rules! error {
85    ($($t:tt)*) => {
86        log!(error, $($t)*)
87    }
88}
89
90macro_rules! log {
91    ($level: ident, $($t:tt)*) => {
92        #[cfg(feature = "log")]
93        { log::$level!($($t)*) }
94        // Silence unused variables warnings.
95        #[cfg(not(feature = "log"))]
96        { if false { let _ = ( $($t)* ); } }
97    }
98}
mio/macros.rs

mio/
macros.rs
