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|
//! L4Re-specific extensions to primitives in the [`std::fs`] module.
//!
//! [`std::fs`]: crate::fs
#![stable(feature = "metadata_ext", since = "1.1.0")]
use crate::fs::Metadata;
use crate::sys_common::AsInner;
#[allow(deprecated)]
use crate::os::l4re::raw;
/// OS-specific extensions to [`fs::Metadata`].
///
/// [`fs::Metadata`]: crate::fs::Metadata
#[stable(feature = "metadata_ext", since = "1.1.0")]
pub trait MetadataExt {
/// Gain a reference to the underlying `stat` structure which contains
/// the raw information returned by the OS.
///
/// The contents of the returned [`stat`] are **not** consistent across
/// Unix platforms. The `os::unix::fs::MetadataExt` trait contains the
/// cross-Unix abstractions contained within the raw stat.
///
/// [`stat`]: struct@crate::os::linux::raw::stat
///
/// # Examples
///
/// ```no_run
/// use std::fs;
/// use std::io;
/// use std::os::linux::fs::MetadataExt;
///
/// fn main() -> io::Result<()> {
/// let meta = fs::metadata("some_file")?;
/// let stat = meta.as_raw_stat();
/// Ok(())
/// }
/// ```
#[stable(feature = "metadata_ext", since = "1.1.0")]
#[deprecated(since = "1.8.0", note = "other methods of this trait are now preferred")]
#[allow(deprecated)]
fn as_raw_stat(&self) -> &raw::stat;
/// Returns the device ID on which this file resides.
///
/// # Examples
///
/// ```no_run
/// use std::fs;
/// use std::io;
/// use std::os::linux::fs::MetadataExt;
///
/// fn main() -> io::Result<()> {
/// let meta = fs::metadata("some_file")?;
/// println!("{}", meta.st_dev());
/// Ok(())
/// }
/// ```
#[stable(feature = "metadata_ext2", since = "1.8.0")]
fn st_dev(&self) -> u64;
/// Returns the inode number.
///
/// # Examples
///
/// ```no_run
/// use std::fs;
/// use std::io;
/// use std::os::linux::fs::MetadataExt;
///
/// fn main() -> io::Result<()> {
/// let meta = fs::metadata("some_file")?;
/// println!("{}", meta.st_ino());
/// Ok(())
/// }
/// ```
#[stable(feature = "metadata_ext2", since = "1.8.0")]
fn st_ino(&self) -> u64;
/// Returns the file type and mode.
///
/// # Examples
///
/// ```no_run
/// use std::fs;
/// use std::io;
/// use std::os::linux::fs::MetadataExt;
///
/// fn main() -> io::Result<()> {
/// let meta = fs::metadata("some_file")?;
/// println!("{}", meta.st_mode());
/// Ok(())
/// }
/// ```
#[stable(feature = "metadata_ext2", since = "1.8.0")]
fn st_mode(&self) -> u32;
/// Returns the number of hard links to file.
///
/// # Examples
///
/// ```no_run
/// use std::fs;
/// use std::io;
/// use std::os::linux::fs::MetadataExt;
///
/// fn main() -> io::Result<()> {
/// let meta = fs::metadata("some_file")?;
/// println!("{}", meta.st_nlink());
/// Ok(())
/// }
/// ```
#[stable(feature = "metadata_ext2", since = "1.8.0")]
fn st_nlink(&self) -> u64;
/// Returns the user ID of the file owner.
///
/// # Examples
///
/// ```no_run
/// use std::fs;
/// use std::io;
/// use std::os::linux::fs::MetadataExt;
///
/// fn main() -> io::Result<()> {
/// let meta = fs::metadata("some_file")?;
/// println!("{}", meta.st_uid());
/// Ok(())
/// }
/// ```
#[stable(feature = "metadata_ext2", since = "1.8.0")]
fn st_uid(&self) -> u32;
/// Returns the group ID of the file owner.
///
/// # Examples
///
/// ```no_run
/// use std::fs;
/// use std::io;
/// use std::os::linux::fs::MetadataExt;
///
/// fn main() -> io::Result<()> {
/// let meta = fs::metadata("some_file")?;
/// println!("{}", meta.st_gid());
/// Ok(())
/// }
/// ```
#[stable(feature = "metadata_ext2", since = "1.8.0")]
fn st_gid(&self) -> u32;
/// Returns the device ID that this file represents. Only relevant for special file.
///
/// # Examples
///
/// ```no_run
/// use std::fs;
/// use std::io;
/// use std::os::linux::fs::MetadataExt;
///
/// fn main() -> io::Result<()> {
/// let meta = fs::metadata("some_file")?;
/// println!("{}", meta.st_rdev());
/// Ok(())
/// }
/// ```
#[stable(feature = "metadata_ext2", since = "1.8.0")]
fn st_rdev(&self) -> u64;
/// Returns the size of the file (if it is a regular file or a symbolic link) in bytes.
///
/// The size of a symbolic link is the length of the pathname it contains,
/// without a terminating null byte.
///
/// # Examples
///
/// ```no_run
/// use std::fs;
/// use std::io;
/// use std::os::linux::fs::MetadataExt;
///
/// fn main() -> io::Result<()> {
/// let meta = fs::metadata("some_file")?;
/// println!("{}", meta.st_size());
/// Ok(())
/// }
/// ```
#[stable(feature = "metadata_ext2", since = "1.8.0")]
fn st_size(&self) -> u64;
/// Returns the last access time of the file, in seconds since Unix Epoch.
///
/// # Examples
///
/// ```no_run
/// use std::fs;
/// use std::io;
/// use std::os::linux::fs::MetadataExt;
///
/// fn main() -> io::Result<()> {
/// let meta = fs::metadata("some_file")?;
/// println!("{}", meta.st_atime());
/// Ok(())
/// }
/// ```
#[stable(feature = "metadata_ext2", since = "1.8.0")]
fn st_atime(&self) -> i64;
/// Returns the last access time of the file, in nanoseconds since [`st_atime`].
///
/// [`st_atime`]: Self::st_atime
///
/// # Examples
///
/// ```no_run
/// use std::fs;
/// use std::io;
/// use std::os::linux::fs::MetadataExt;
///
/// fn main() -> io::Result<()> {
/// let meta = fs::metadata("some_file")?;
/// println!("{}", meta.st_atime_nsec());
/// Ok(())
/// }
/// ```
#[stable(feature = "metadata_ext2", since = "1.8.0")]
fn st_atime_nsec(&self) -> i64;
/// Returns the last modification time of the file, in seconds since Unix Epoch.
///
/// # Examples
///
/// ```no_run
/// use std::fs;
/// use std::io;
/// use std::os::linux::fs::MetadataExt;
///
/// fn main() -> io::Result<()> {
/// let meta = fs::metadata("some_file")?;
/// println!("{}", meta.st_mtime());
/// Ok(())
/// }
/// ```
#[stable(feature = "metadata_ext2", since = "1.8.0")]
fn st_mtime(&self) -> i64;
/// Returns the last modification time of the file, in nanoseconds since [`st_mtime`].
///
/// [`st_mtime`]: Self::st_mtime
///
/// # Examples
///
/// ```no_run
/// use std::fs;
/// use std::io;
/// use std::os::linux::fs::MetadataExt;
///
/// fn main() -> io::Result<()> {
/// let meta = fs::metadata("some_file")?;
/// println!("{}", meta.st_mtime_nsec());
/// Ok(())
/// }
/// ```
#[stable(feature = "metadata_ext2", since = "1.8.0")]
fn st_mtime_nsec(&self) -> i64;
/// Returns the last status change time of the file, in seconds since Unix Epoch.
///
/// # Examples
///
/// ```no_run
/// use std::fs;
/// use std::io;
/// use std::os::linux::fs::MetadataExt;
///
/// fn main() -> io::Result<()> {
/// let meta = fs::metadata("some_file")?;
/// println!("{}", meta.st_ctime());
/// Ok(())
/// }
/// ```
#[stable(feature = "metadata_ext2", since = "1.8.0")]
fn st_ctime(&self) -> i64;
/// Returns the last status change time of the file, in nanoseconds since [`st_ctime`].
///
/// [`st_ctime`]: Self::st_ctime
///
/// # Examples
///
/// ```no_run
/// use std::fs;
/// use std::io;
/// use std::os::linux::fs::MetadataExt;
///
/// fn main() -> io::Result<()> {
/// let meta = fs::metadata("some_file")?;
/// println!("{}", meta.st_ctime_nsec());
/// Ok(())
/// }
/// ```
#[stable(feature = "metadata_ext2", since = "1.8.0")]
fn st_ctime_nsec(&self) -> i64;
/// Returns the "preferred" block size for efficient filesystem I/O.
///
/// # Examples
///
/// ```no_run
/// use std::fs;
/// use std::io;
/// use std::os::linux::fs::MetadataExt;
///
/// fn main() -> io::Result<()> {
/// let meta = fs::metadata("some_file")?;
/// println!("{}", meta.st_blksize());
/// Ok(())
/// }
/// ```
#[stable(feature = "metadata_ext2", since = "1.8.0")]
fn st_blksize(&self) -> u64;
/// Returns the number of blocks allocated to the file, 512-byte units.
///
/// # Examples
///
/// ```no_run
/// use std::fs;
/// use std::io;
/// use std::os::linux::fs::MetadataExt;
///
/// fn main() -> io::Result<()> {
/// let meta = fs::metadata("some_file")?;
/// println!("{}", meta.st_blocks());
/// Ok(())
/// }
/// ```
#[stable(feature = "metadata_ext2", since = "1.8.0")]
fn st_blocks(&self) -> u64;
}
#[stable(feature = "metadata_ext", since = "1.1.0")]
impl MetadataExt for Metadata {
#[allow(deprecated)]
fn as_raw_stat(&self) -> &raw::stat {
unsafe { &*(self.as_inner().as_inner() as *const libc::stat64 as *const raw::stat) }
}
fn st_dev(&self) -> u64 {
self.as_inner().as_inner().st_dev as u64
}
fn st_ino(&self) -> u64 {
self.as_inner().as_inner().st_ino as u64
}
fn st_mode(&self) -> u32 {
self.as_inner().as_inner().st_mode as u32
}
fn st_nlink(&self) -> u64 {
self.as_inner().as_inner().st_nlink as u64
}
fn st_uid(&self) -> u32 {
self.as_inner().as_inner().st_uid as u32
}
fn st_gid(&self) -> u32 {
self.as_inner().as_inner().st_gid as u32
}
fn st_rdev(&self) -> u64 {
self.as_inner().as_inner().st_rdev as u64
}
fn st_size(&self) -> u64 {
self.as_inner().as_inner().st_size as u64
}
fn st_atime(&self) -> i64 {
self.as_inner().as_inner().st_atime as i64
}
fn st_atime_nsec(&self) -> i64 {
self.as_inner().as_inner().st_atime_nsec as i64
}
fn st_mtime(&self) -> i64 {
self.as_inner().as_inner().st_mtime as i64
}
fn st_mtime_nsec(&self) -> i64 {
self.as_inner().as_inner().st_mtime_nsec as i64
}
fn st_ctime(&self) -> i64 {
self.as_inner().as_inner().st_ctime as i64
}
fn st_ctime_nsec(&self) -> i64 {
self.as_inner().as_inner().st_ctime_nsec as i64
}
fn st_blksize(&self) -> u64 {
self.as_inner().as_inner().st_blksize as u64
}
fn st_blocks(&self) -> u64 {
self.as_inner().as_inner().st_blocks as u64
}
}
|
