NetBSD: Introduce types.rs, correct the definition of lwpid_t

This is currently defined as an `unsigned int` but should be `int32_t`.
Also move some related definitions `new`.

Link: https://github.com/NetBSD/src/blob/6ace5fed3bd010695a1b88ca6c1f8a5af7793ffb/sys/sys/types.h#L200

(backport <#4782>)
(cherry picked from commit 2946483)

Author: tgross35

src/new/mod.rs

@@ -185,6 +185,7 @@ cfg_if! {
     } else if #[cfg(target_os = "netbsd")] {
         pub use sys::ipc::*;
         pub use sys::statvfs::*;
+        pub use sys::types::*;
         pub use utmp_::*;
         pub use utmpx_::*;
     } else if #[cfg(target_os = "openbsd")] {

src/new/netbsd/sys/mod.rs

@@ -4,3 +4,4 @@
 
 pub(crate) mod ipc;
 pub(crate) mod statvfs;
+pub(crate) mod types;

src/new/netbsd/sys/types.rs

@@ -0,0 +1,16 @@
+//! Header: `sys/types.h`
+//!
+//! <https://github.com/NetBSD/src/blob/trunk/sys/sys/types.h>
+
+use crate::prelude::*;
+
+pub type dev_t = u64;
+
+pub type lwpid_t = i32;
+
+pub type mqd_t = c_int;
+pub type cpuid_t = c_ulong;
+
+pub type clock_t = c_uint;
+pub type timer_t = c_int;
+pub type suseconds_t = c_int;

src/unix/bsd/netbsdlike/mod.rs

@@ -704,7 +704,8 @@ extern "C" {
     pub fn getpriority(which: c_int, who: crate::id_t) -> c_int;
     pub fn setpriority(which: c_int, who: crate::id_t, prio: c_int) -> c_int;
 
-    pub fn mknodat(dirfd: c_int, pathname: *const c_char, mode: mode_t, dev: dev_t) -> c_int;
+    pub fn mknodat(dirfd: c_int, pathname: *const c_char, mode: mode_t, dev: crate::dev_t)
+        -> c_int;
     pub fn mkfifoat(dirfd: c_int, pathname: *const c_char, mode: mode_t) -> c_int;
     pub fn sem_timedwait(sem: *mut sem_t, abstime: *const crate::timespec) -> c_int;
     pub fn sem_getvalue(sem: *mut sem_t, sval: *mut c_int) -> c_int;

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

@@ -1,24 +1,19 @@
 use crate::prelude::*;
 use crate::{
     cmsghdr,
+    cpuid_t,
+    lwpid_t,
     off_t,
 };
 
-pub type clock_t = c_uint;
-pub type suseconds_t = c_int;
-pub type dev_t = u64;
 pub type blksize_t = i32;
 pub type fsblkcnt_t = u64;
 pub type fsfilcnt_t = u64;
 pub type idtype_t = c_int;
-pub type mqd_t = c_int;
 type __pthread_spin_t = __cpu_simple_lock_nv_t;
-pub type lwpid_t = c_uint;
 pub type shmatt_t = c_uint;
-pub type cpuid_t = c_ulong;
 pub type cpuset_t = _cpuset;
 pub type pthread_spin_t = c_uchar;
-pub type timer_t = c_int;
 
 // elf.h
 

src/unix/mod.rs

@@ -60,7 +60,7 @@ s! {
     pub struct timeval {
         pub tv_sec: time_t,
         #[cfg(not(gnu_time_bits64))]
-        pub tv_usec: suseconds_t,
+        pub tv_usec: crate::suseconds_t,
         // For 64 bit time on 32 bit linux glibc, suseconds_t is still
         // a 32 bit type.  Use __suseconds64_t instead
         #[cfg(gnu_time_bits64)]