update ci and deps

Author: Dirreke

.github/bors.toml

@@ -1,7 +1,9 @@
 on:
-  push:
-    branches: [ staging, trying, master ]
-  pull_request:
+  push: # Run CI for all branches except GitHub merge queue tmp branches
+    branches-ignore:
+    - "gh-readonly-queue/**"
+  pull_request: # Run CI for PRs on any branch
+  merge_group: # Run CI for the GitHub merge queue
 
 name: Build
 
@@ -16,24 +18,24 @@ jobs:
         rust: [stable]
         TARGET:
           - aarch64-unknown-linux-gnu
+          - aarch64-unknown-linux-musl
           - arm-unknown-linux-gnueabi
+          - arm-unknown-linux-gnueabihf
           - armv7-unknown-linux-gnueabihf
           - i686-unknown-linux-gnu
           - i686-unknown-linux-musl
-          - mips-unknown-linux-gnu
-          - mips64-unknown-linux-gnuabi64
-          - mips64el-unknown-linux-gnuabi64
-          - mipsel-unknown-linux-gnu
+          # - loongarch64-unknown-linux-gnu
           - powerpc-unknown-linux-gnu
           # - powerpc64-unknown-linux-gnu
           - powerpc64le-unknown-linux-gnu
+          - riscv64gc-unknown-linux-gnu
           - s390x-unknown-linux-gnu
           - x86_64-unknown-linux-gnu
           - x86_64-unknown-linux-musl
 
         include:
           # MSRV
-          - rust: 1.59.0
+          - rust: 1.65.0
             TARGET: x86_64-unknown-linux-gnu
 
           # Test nightly but don't fail
@@ -63,15 +65,13 @@ jobs:
           args: --target=${{ matrix.TARGET }} --all-features
 
       - name: Test
-        if: ${{ ! contains(matrix.TARGET, 'mips') }} # https://github.com/rust-lang/rust/issues/108835
         uses: actions-rs/cargo@v1
         with:
           use-cross: true
           command: test
           args: --target=${{ matrix.TARGET }}
 
       - name: Test all features
-        if: ${{ ! contains(matrix.TARGET, 'mips') }} # https://github.com/rust-lang/rust/issues/108835
         uses: actions-rs/cargo@v1
         with:
           use-cross: true
@@ -109,7 +109,7 @@ jobs:
       - uses: actions-rs/toolchain@v1
         with:
           profile: minimal
-          toolchain: 1.59.0
+          toolchain: 1.65.0
           components: clippy
 
       - uses: actions-rs/clippy-check@v1

.github/workflows/ci.yml

@@ -8,7 +8,9 @@ Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
 
-- MSRV is now 1.59.0.
+- Updated nix to version `0.27`.
+- Updated bitflags to version `2.4`.
+- MSRV is now 1.65.0.
 
 ## [v0.5.1] - 2021-11-22
 

CHANGELOG.md

@@ -20,9 +20,9 @@ name = "async_tokio"
 required-features = ["async-tokio"]
 
 [dependencies]
-bitflags = "1.3"
+bitflags = "2.4"
 libc = "0.2"
-nix = "0.23"
+nix = { version = "0.27", features = ["ioctl"] }
 tokio = { version = "1", features = ["io-std", "net"], optional = true }
 futures = { version = "0.3", optional = true }
 
@@ -31,6 +31,7 @@ quicli = "0.4"
 structopt = "0.3"
 anyhow = "1.0"
 tokio = { version = "1", features = ["io-std", "rt-multi-thread", "macros", "net"] }
+nix = { version = "0.27", features = ["ioctl", "poll"] }
 
 [package.metadata.docs.rs]
 # To build locally:

Cargo.toml

@@ -206,7 +206,7 @@ to be considered reliable.
 
 ## Minimum Supported Rust Version (MSRV)
 
-This crate is guaranteed to compile on stable Rust 1.59.0 and up. It *might*
+This crate is guaranteed to compile on stable Rust 1.65.0 and up. It *might*
 compile with older versions but that may change in any new patch release.
 
 ## License

README.md

@@ -9,7 +9,7 @@
 use gpio_cdev::*;
 use nix::poll::*;
 use quicli::prelude::*;
-use std::os::unix::io::AsRawFd;
+use std::os::unix::io::{AsRawFd, FromRawFd, OwnedFd};
 use structopt::StructOpt;
 
 type PollEventFlags = nix::poll::PollFlags;
@@ -41,14 +41,13 @@ fn do_main(args: Cli) -> anyhow::Result<()> {
         .collect();
 
     // Create a vector of file descriptors for polling
-    let mut pollfds: Vec<PollFd> = evt_handles
+    let ownedfd: Vec<OwnedFd> = evt_handles
         .iter()
-        .map(|h| {
-            PollFd::new(
-                h.as_raw_fd(),
-                PollEventFlags::POLLIN | PollEventFlags::POLLPRI,
-            )
-        })
+        .map(|h| unsafe { OwnedFd::from_raw_fd(h.as_raw_fd()) })
+        .collect();
+    let mut pollfds: Vec<PollFd> = ownedfd
+        .iter()
+        .map(|fd| PollFd::new(fd, PollEventFlags::POLLIN | PollEventFlags::POLLPRI))
         .collect();
 
     loop {

examples/monitor.rs

@@ -97,6 +97,6 @@ impl Stream for AsyncLineEventHandle {
 
 impl AsRef<LineEventHandle> for AsyncLineEventHandle {
     fn as_ref(&self) -> &LineEventHandle {
-        &self.asyncfd.get_ref()
+        self.asyncfd.get_ref()
     }
 }

src/async_tokio.rs

@@ -95,7 +95,7 @@ use std::fs::{read_dir, File, ReadDir};
 use std::io::Read;
 use std::mem;
 use std::ops::Index;
-use std::os::unix::io::{AsRawFd, FromRawFd, RawFd};
+use std::os::unix::io::{AsFd, AsRawFd, BorrowedFd, FromRawFd, RawFd};
 use std::path::{Path, PathBuf};
 use std::ptr;
 use std::slice;
@@ -335,7 +335,7 @@ pub struct Line {
 /// Wraps kernel [`struct gpioline_info`].
 ///
 /// [`struct gpioline_info`]: https://elixir.bootlin.com/linux/v4.9.127/source/include/uapi/linux/gpio.h#L36
-#[derive(Debug, Clone)]
+#[derive(Debug)]
 pub struct LineInfo {
     line: Line,
     flags: LineFlags,
@@ -349,6 +349,7 @@ bitflags! {
     /// Maps to kernel [`GPIOHANDLE_REQUEST_*`] flags.
     ///
     /// [`GPIOHANDLE_REQUEST_*`]: https://elixir.bootlin.com/linux/v4.9.127/source/include/uapi/linux/gpio.h#L58
+    #[derive(Debug, Clone)]
     pub struct LineRequestFlags: u32 {
         const INPUT = (1 << 0);
         const OUTPUT = (1 << 1);
@@ -367,7 +368,7 @@ bitflags! {
     pub struct EventRequestFlags: u32 {
         const RISING_EDGE = (1 << 0);
         const FALLING_EDGE = (1 << 1);
-        const BOTH_EDGES = Self::RISING_EDGE.bits | Self::FALLING_EDGE.bits;
+        const BOTH_EDGES = Self::RISING_EDGE.bits() | Self::FALLING_EDGE.bits();
     }
 }
 
@@ -377,6 +378,7 @@ bitflags! {
     /// Maps to kernel [`GPIOLINE_FLAG_*`] flags.
     ///
     /// [`GPIOLINE_FLAG_*`]: https://elixir.bootlin.com/linux/v4.9.127/source/include/uapi/linux/gpio.h#L29
+    #[derive(Debug)]
     pub struct LineFlags: u32 {
         const KERNEL = (1 << 0);
         const IS_OUT = (1 << 1);
@@ -572,7 +574,7 @@ impl Line {
         consumer: &str,
     ) -> Result<AsyncLineEventHandle> {
         let events = self.events(handle_flags, event_flags, consumer)?;
-        Ok(AsyncLineEventHandle::new(events)?)
+        AsyncLineEventHandle::new(events)
     }
 }
 
@@ -693,7 +695,7 @@ impl LineHandle {
 
     /// Get the flags with which this handle was created
     pub fn flags(&self) -> LineRequestFlags {
-        self.flags
+        self.flags.clone()
     }
 }
 
@@ -985,6 +987,14 @@ impl LineEventHandle {
         &self.line
     }
 
+    pub fn file(&self) -> &File {
+        &self.file
+    }
+
+    pub fn file2(&mut self) -> &File {
+        &self.file
+    }
+
     /// Helper function which returns the line event if a complete event was read, Ok(None) if not
     /// enough data was read or the error returned by `read()`.
     pub(crate) fn read_event(&mut self) -> std::io::Result<Option<LineEvent>> {
@@ -1011,6 +1021,13 @@ impl AsRawFd for LineEventHandle {
     }
 }
 
+impl AsFd for LineEventHandle {
+    /// Gets the raw file descriptor for the `LineEventHandle`.
+    fn as_fd(&self) -> BorrowedFd<'_> {
+        self.file.as_fd()
+    }
+}
+
 impl Iterator for LineEventHandle {
     type Item = Result<LineEvent>;