Vendor things

third-party/vendor/kqueue-sys/src/lib.rs

@@ -0,0 +1,136 @@
+#![no_std]
+#[allow(unused_imports)]
+use libc::{c_int, c_short, c_uint, c_ushort, c_void, intptr_t, size_t, timespec, uintptr_t};
+
+#[cfg(not(target_os = "netbsd"))]
+use core::ptr;
+
+pub mod constants;
+
+pub use self::constants::*;
+
+#[cfg(not(target_os = "netbsd"))]
+pub type EventListSize = c_int;
+
+#[cfg(target_os = "netbsd")]
+pub type EventListSize = size_t;
+
+#[cfg(all(not(target_os = "netbsd"), not(target_os = "freebsd")))]
+#[derive(Clone, Copy, Debug)]
+#[repr(C)]
+pub struct kevent {
+    pub ident: uintptr_t,
+    pub filter: EventFilter,
+    pub flags: EventFlag,
+    pub fflags: FilterFlag,
+    pub data: i64,
+    pub udata: *mut c_void,
+}
+
+#[cfg(target_os = "netbsd")]
+#[derive(Clone, Copy, Debug)]
+#[repr(C)]
+pub struct kevent {
+    pub ident: uintptr_t,
+    pub filter: EventFilter,
+    pub flags: EventFlag,
+    pub fflags: FilterFlag,
+    pub data: i64,
+    pub udata: intptr_t,
+}
+
+#[cfg(target_os = "freebsd")]
+#[derive(Clone, Copy, Debug)]
+#[repr(C)]
+pub struct kevent {
+    pub ident: uintptr_t,
+    pub filter: EventFilter,
+    pub flags: EventFlag,
+    pub fflags: FilterFlag,
+    pub data: i64,
+    pub udata: *mut c_void,
+    pub ext: [i64; 4],
+}
+
+impl kevent {
+    #[cfg(all(not(target_os = "netbsd"), not(target_os = "freebsd")))]
+    pub fn new(
+        ident: uintptr_t,
+        filter: EventFilter,
+        flags: EventFlag,
+        fflags: FilterFlag,
+    ) -> kevent {
+        kevent {
+            ident,
+            filter,
+            flags,
+            fflags,
+            data: 0,
+            udata: ptr::null_mut(),
+        }
+    }
+
+    #[cfg(target_os = "netbsd")]
+    pub fn new(
+        ident: uintptr_t,
+        filter: EventFilter,
+        flags: EventFlag,
+        fflags: FilterFlag,
+    ) -> kevent {
+        kevent {
+            ident,
+            filter,
+            flags,
+            fflags,
+            data: 0,
+            udata: 0,
+        }
+    }
+
+    #[cfg(target_os = "freebsd")]
+    pub fn new(
+        ident: uintptr_t,
+        filter: EventFilter,
+        flags: EventFlag,
+        fflags: FilterFlag,
+    ) -> kevent {
+        kevent {
+            ident,
+            filter,
+            flags,
+            fflags,
+            data: 0,
+            udata: ptr::null_mut(),
+            ext: [0; 4],
+        }
+    }
+}
+
+#[allow(improper_ctypes)]
+extern "C" {
+    pub fn kqueue() -> c_int;
+
+    pub fn kevent(
+        kq: c_int,
+        changelist: *const kevent,
+        nchanges: EventListSize,
+        eventlist: *mut kevent,
+        nevents: EventListSize,
+        timeout: *const timespec,
+    ) -> c_int;
+
+    #[cfg(target_os = "netbsd")]
+    pub fn kqueue1(flags: c_int) -> c_int;
+}
+
+#[cfg(test)]
+mod test {
+    use super::kqueue;
+
+    #[test]
+    fn test_kqueue() {
+        unsafe {
+            assert!(kqueue() > 0);
+        }
+    }
+}