Use libc instead of own definitions

CHANGELOG.md

@@ -1,5 +1,11 @@
 # Changelog
 
+## [0.4.4] - 2025-01-15
+
+### Added
+
+ - added `NotifyState::MonotonicUsec`, for use with `Type=notify-reload`
+
 ## [0.4.3] - 2024-10-05
 
 ### Added

README.md

@@ -9,7 +9,7 @@
 [API docs]: https://docs.rs/sd-notify/badge.svg
 [docs.rs]: https://docs.rs/sd-notify/
 
-A lightweight (no dependencies) crate for sending `systemd` service state notifications.
+A lightweight crate for sending `systemd` service state notifications.
 
 ## Quick start
 

src/lib.rs

@@ -37,8 +37,6 @@ use std::str::FromStr;
 
 use libc::CLOCK_MONOTONIC;
 
-mod ffi;
-
 /// Daemon notification for the service manager.
 #[derive(Clone, Debug)]
 pub enum NotifyState<'a> {
@@ -111,13 +109,15 @@ impl Display for NotifyState<'_> {
 }
 
 impl NotifyState<'_> {
-    /// Create a new NotifyState::MonotonicUsec using the current system monotonic time.
+    /// Create a new [`NotifyState::MonotonicUsec`] using the current system monotonic time.
     ///
     /// # Example
     ///
-    /// ```no_run
+    /// ```
+    /// # use sd_notify::NotifyState;
+    /// #
     /// let _ = NotifyState::monotonic_usec_now()
-    ///     .expect("Failed to access monotonic time");
+    ///     .expect("Failed to read monotonic time");
     /// ```
     pub fn monotonic_usec_now() -> io::Result<Self> {
         monotonic_time_usec().map(NotifyState::MonotonicUsec)
@@ -404,14 +404,14 @@ impl Drop for UnsetEnvGuard {
 }
 
 fn fd_cloexec(fd: u32) -> io::Result<()> {
-    let fd = RawFd::try_from(fd).map_err(|_| io::Error::from_raw_os_error(ffi::EBADF))?;
-    let flags = unsafe { ffi::fcntl(fd, ffi::F_GETFD, 0) };
+    let fd = RawFd::try_from(fd).map_err(|_| io::Error::from_raw_os_error(libc::EBADF))?;
+    let flags = unsafe { libc::fcntl(fd, libc::F_GETFD, 0) };
     if flags < 0 {
         return Err(io::Error::last_os_error());
     }
-    let new_flags = flags | ffi::FD_CLOEXEC;
+    let new_flags = flags | libc::FD_CLOEXEC;
     if new_flags != flags {
-        let r = unsafe { ffi::fcntl(fd, ffi::F_SETFD, new_flags) };
+        let r = unsafe { libc::fcntl(fd, libc::F_SETFD, new_flags) };
         if r < 0 {
             return Err(io::Error::last_os_error());
         }