Rename crates from jinux-* to aster-*

services/libs/aster-std/src/device/pty/mod.rs

@@ -0,0 +1,39 @@
+use crate::fs::devpts::DevPts;
+use crate::fs::fs_resolver::{FsPath, FsResolver};
+use crate::fs::utils::{Dentry, Inode, InodeMode, InodeType};
+use crate::prelude::*;
+
+#[allow(clippy::module_inception)]
+mod pty;
+
+pub use pty::{PtyMaster, PtySlave};
+use spin::Once;
+
+static DEV_PTS: Once<Arc<Dentry>> = Once::new();
+
+pub fn init() -> Result<()> {
+    let fs = FsResolver::new();
+
+    let dev = fs.lookup(&FsPath::try_from("/dev")?)?;
+    // Create the "pts" directory and mount devpts on it.
+    let devpts = dev.create("pts", InodeType::Dir, InodeMode::from_bits_truncate(0o755))?;
+    devpts.mount(DevPts::new())?;
+
+    DEV_PTS.call_once(|| devpts);
+
+    // Create the "ptmx" symlink.
+    let ptmx = dev.create(
+        "ptmx",
+        InodeType::SymLink,
+        InodeMode::from_bits_truncate(0o777),
+    )?;
+    ptmx.inode().write_link("pts/ptmx")?;
+    Ok(())
+}
+
+pub fn new_pty_pair(index: u32, ptmx: Arc<dyn Inode>) -> Result<(Arc<PtyMaster>, Arc<PtySlave>)> {
+    debug!("pty index = {}", index);
+    let master = PtyMaster::new(ptmx, index);
+    let slave = PtySlave::new(&master);
+    Ok((master, slave))
+}