Merge #1596 #1621

1596: Add NetBSD configuration for supported process resources r=asomers a=schctl

In addition to existing resources, NetBSD supports `RLIMIT_MEMLOCK`, `RLIMIT_NPROC` and `RLIMIT_RSS`.

https://man.netbsd.org/setrlimit.2

`RLIMIT_AS` is also supported, but it looks like it was added [after version 5.0](https://mail-index.netbsd.org/tech-kern/2009/03/28/msg004702.html), so I'm not sure if that should be enabled.

1621: Add posix_fallocate on DragonFly r=asomers a=rtzoeller

Enable the existing `posix_fallocate()` tests as they are passing locally.

Co-authored-by: Sachin Cherian <sachinctl@protonmail.com>
Co-authored-by: Ryan Zoeller <rtzoeller@rtzoeller.com>

CHANGELOG.md

@@ -19,6 +19,8 @@ This project adheres to [Semantic Versioning](https://semver.org/).
   (#[1581](https://github.com/nix-rust/nix/pull/1581))
 - Added `sched_setaffinity` and `sched_getaffinity` on DragonFly.
   (#[1537](https://github.com/nix-rust/nix/pull/1537))
+- Added `posix_fallocate` on DragonFly.
+  (#[1621](https://github.com/nix-rust/nix/pull/1621))
 - Added the `SO_TIMESTAMPING` support
   (#[1547](https://github.com/nix-rust/nix/pull/1547))
 

src/fcntl.rs

@@ -749,6 +749,7 @@ mod posix_fadvise {
 #[cfg(any(
     target_os = "linux",
     target_os = "android",
+    target_os = "dragonfly",
     target_os = "emscripten",
     target_os = "fuchsia",
     any(target_os = "wasi", target_env = "wasi"),

src/sys/resource.rs

@@ -24,12 +24,15 @@ cfg_if! {
 }
 
 libc_enum! {
+    /// Types of process resources.
+    ///
     /// The Resource enum is platform dependent. Check different platform
-    /// manuals for more details. Some platform links has been provided for
-    /// earier reference (non-exhaustive).
+    /// manuals for more details. Some platform links have been provided for
+    /// easier reference (non-exhaustive).
     ///
     /// * [Linux](https://man7.org/linux/man-pages/man2/getrlimit.2.html)
     /// * [FreeBSD](https://www.freebsd.org/cgi/man.cgi?query=setrlimit)
+    /// * [NetBSD](https://man.netbsd.org/setrlimit.2)
 
     // linux-gnu uses u_int as resource enum, which is implemented in libc as
     // well.
@@ -49,11 +52,7 @@ libc_enum! {
         ), repr(i32))]
     #[non_exhaustive]
     pub enum Resource {
-        #[cfg(not(any(
-                    target_os = "freebsd",
-                    target_os = "netbsd",
-                    target_os = "openbsd"
-        )))]
+        #[cfg(not(any(target_os = "freebsd", target_os = "netbsd", target_os = "openbsd")))]
         #[cfg_attr(docsrs, doc(cfg(all())))]
         /// The maximum amount (in bytes) of virtual memory the process is
         /// allowed to map.
@@ -83,7 +82,13 @@ libc_enum! {
         /// this process may establish.
         RLIMIT_LOCKS,
 
-        #[cfg(any(target_os = "android", target_os = "freebsd", target_os = "openbsd", target_os = "linux"))]
+        #[cfg(any(
+            target_os = "android",
+            target_os = "freebsd",
+            target_os = "openbsd",
+            target_os = "linux",
+            target_os = "netbsd"
+        ))]
         #[cfg_attr(docsrs, doc(cfg(all())))]
         /// The maximum size (in bytes) which a process may lock into memory
         /// using the mlock(2) system call.
@@ -101,7 +106,13 @@ libc_enum! {
         /// setpriority or nice.
         RLIMIT_NICE,
 
-        #[cfg(any(target_os = "android", target_os = "freebsd", target_os = "openbsd", target_os = "linux"))]
+        #[cfg(any(
+            target_os = "android",
+            target_os = "freebsd",
+            target_os = "netbsd",
+            target_os = "openbsd",
+            target_os = "linux",
+        ))]
         #[cfg_attr(docsrs, doc(cfg(all())))]
         /// The maximum number of simultaneous processes for this user id.
         RLIMIT_NPROC,
@@ -112,7 +123,12 @@ libc_enum! {
         /// create.
         RLIMIT_NPTS,
 
-        #[cfg(any(target_os = "android", target_os = "freebsd", target_os = "openbsd", target_os = "linux"))]
+        #[cfg(any(target_os = "android",
+            target_os = "freebsd",
+            target_os = "netbsd",
+            target_os = "openbsd",
+            target_os = "linux",
+        ))]
         #[cfg_attr(docsrs, doc(cfg(all())))]
         /// When there is memory pressure and swap is available, prioritize
         /// eviction of a process' resident pages beyond this amount (in bytes).

test/test_fcntl.rs

@@ -488,6 +488,7 @@ mod test_posix_fadvise {
 
 #[cfg(any(target_os = "linux",
           target_os = "android",
+          target_os = "dragonfly",
           target_os = "emscripten",
           target_os = "fuchsia",
           any(target_os = "wasi", target_env = "wasi"),