Provide the EV_SET macro and nevents_type

both to make working with kevent easier across BSD variants

libc-test/build.rs

@@ -348,6 +348,9 @@ fn main() {
             // sighandler_t is crazy across platforms
             "sighandler_t" => true,
 
+            // A helper type for kqueue platforms, not actually defined on the system
+            "nevents_type" => true,
+
             _ => false
         }
     });

src/unix/bsd/apple/mod.rs

@@ -23,6 +23,7 @@ pub type nl_item = ::c_int;
 pub type id_t = ::c_uint;
 pub type sem_t = ::c_int;
 pub type idtype_t = ::c_uint;
+pub type nevents_type = ::c_int;
 
 pub enum timezone {}
 
@@ -413,6 +414,21 @@ s! {
     }
 }
 
+#[macro_export]
+macro_rules! EV_SET {
+    ($ident:expr, $filter:expr, $flags:expr, $fflags:expr,
+        $data:expr, $udata:expr) => {
+        kevent {
+            ident: $ident as ::libc::uintptr_t,
+            filter: $filter as ::libc::int16_t,
+            flags: $flags as ::libc::uint16_t,
+            fflags: $fflags as ::libc::uint32_t,
+            data: $data as ::libc::intptr_t,
+            udata: $udata as *mut ::libc::c_void,
+        }
+    }
+}
+
 pub const _UTX_USERSIZE: usize = 256;
 pub const _UTX_LINESIZE: usize = 32;
 pub const _UTX_IDSIZE: usize = 4;

src/unix/bsd/freebsdlike/mod.rs

@@ -13,6 +13,7 @@ pub type tcflag_t = ::c_uint;
 pub type speed_t = ::c_uint;
 pub type nl_item = ::c_int;
 pub type id_t = i64;
+pub type nevents_type = ::c_int;
 
 pub enum timezone {}
 
@@ -161,6 +162,21 @@ s! {
     }
 }
 
+#[macro_export]
+macro_rules! EV_SET {
+    ($ident:expr, $filter:expr, $flags:expr, $fflags:expr,
+        $data:expr, $udata:expr) => {
+        kevent {
+            ident: $ident as ::libc::uintptr_t,
+            filter: $filter as ::libc::c_short,
+            flags: $flags as ::libc::c_ushort,
+            fflags: $fflags as ::libc::c_uint,
+            data: $data as ::libc::intptr_t,
+            udata: $udata as *mut ::libc::c_void,
+        }
+    }
+}
+
 pub const AIO_LISTIO_MAX: ::c_int = 16;
 pub const AIO_CANCELED: ::c_int = 1;
 pub const AIO_NOTCANCELED: ::c_int = 2;

src/unix/bsd/netbsdlike/netbsd/mod.rs

@@ -5,6 +5,7 @@ pub type blksize_t = ::int32_t;
 pub type fsblkcnt_t = ::uint64_t;
 pub type fsfilcnt_t = ::uint64_t;
 pub type idtype_t = ::c_int;
+pub type nevents_type = ::size_t;
 
 s! {
     pub struct aiocb {
@@ -283,6 +284,21 @@ s! {
     }
 }
 
+#[macro_export]
+macro_rules! EV_SET {
+    ($ident:expr, $filter:expr, $flags:expr, $fflags:expr,
+        $data:expr, $udata:expr) => {
+        kevent {
+            ident: $ident as ::libc::uintptr_t,
+            filter: $filter as ::libc::uint32_t,
+            flags: $flags as ::libc::uint32_t,
+            fflags: $fflags as ::libc::uint32_t,
+            data: $data as ::libc::int64_t,
+            udata: $udata as ::libc::intptr_t,
+        }
+    }
+}
+
 pub const AT_FDCWD: ::c_int = -100;
 pub const AT_EACCESS: ::c_int = 0x100;
 pub const AT_SYMLINK_NOFOLLOW: ::c_int = 0x200;

src/unix/bsd/netbsdlike/openbsdlike/mod.rs

@@ -14,6 +14,7 @@ pub type pthread_cond_t = *mut ::c_void;
 pub type pthread_condattr_t = *mut ::c_void;
 pub type pthread_rwlock_t = *mut ::c_void;
 pub type pthread_rwlockattr_t = *mut ::c_void;
+pub type nevents_type = ::c_int;
 
 s! {
     pub struct dirent {
@@ -178,6 +179,21 @@ s! {
     }
 }
 
+#[macro_export]
+macro_rules! EV_SET {
+    ($ident:expr, $filter:expr, $flags:expr, $fflags:expr,
+        $data:expr, $udata:expr) => {
+        kevent {
+            ident: $ident as ::libc::uintptr_t,
+            filter: $filter as ::libc::c_short,
+            flags: $flags as ::libc::c_ushort,
+            fflags: $fflags as ::libc::c_uint,
+            data: $data as ::libc::int64_t,
+            udata: $udata as *mut ::libc::c_void,
+        }
+    }
+}
+
 pub const UT_NAMESIZE: usize = 32;
 pub const UT_LINESIZE: usize = 8;
 pub const UT_HOSTSIZE: usize = 256;