1 // SPDX-License-Identifier: GPL-2.0
35     const unsafe fn new(operations: bindings::file_operations, mode: u16) -> Self {  in new()
46     pub(crate) const fn mode(&self) -> u16 {  in mode()
52     pub(super) const fn adapt(&self) -> &FileOps<T::Inner> {  in adapt()
62     fn deref(&self) -> &Self::Target {  in deref()
70     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {  in fmt()
81 /// * `file` must point to a live, not-yet-initialized file object.
82 unsafe extern "C" fn writer_open<T: Writer + Sync>(  in writer_open()
85 ) -> c_int {  in writer_open()
103 unsafe extern "C" fn writer_act<T: Writer + Sync>(  in writer_act()
106 ) -> c_int {  in writer_act()
122 impl<T: Writer + Sync> ReadFile<T> for T {
125             read: Some(bindings::seq_read),
140 fn read<T: Reader + Sync>(data: &T, buf: *const c_char, count: usize) -> isize {  in read()  function
155 /// `buf` must be a valid user-space buffer.
156 pub(crate) unsafe extern "C" fn write<T: Reader + Sync>(  in write()
161 ) -> isize {  in write()
166     read(data, buf, count)  in write()
174 impl<T: Writer + Reader + Sync> ReadWriteFile<T> for T {
178             read: Some(bindings::seq_read),
204 ) -> c_int {  in write_only_open()
215 /// * `buf` must be a valid user-space buffer.
216 pub(crate) unsafe extern "C" fn write_only_write<T: Reader + Sync>(  in write_only_write()
221 ) -> isize {  in write_only_write()
225     read(data, buf, count)  in write_only_write()
232 impl<T: Reader + Sync> WriteFile<T> for T {
255 ) -> isize {  in blob_read()
257     // - `file` is a valid pointer to a `struct file`.  in blob_read()
258     // - The type invariant of `FileOps` guarantees that `private_data` points to a valid `T`.  in blob_read()
262     // - `ppos` is a valid `file::Offset` pointer.  in blob_read()
263     // - We have exclusive access to `ppos`.  in blob_read()
268     let ret = || -> Result<isize> {  in blob_read()
280 /// Representation of [`FileOps`] for read only binary files.
285 impl<T: BinaryWriter + Sync> BinaryReadFile<T> for T {
288             read: Some(blob_read::<T>),
296         // - The private data of `struct inode` does always contain a pointer to a valid `T`.
297         // - `simple_open()` stores the `struct inode`'s private data in the private data of the
299         // - `blob_read()` re-creates a reference to `T` from the `struct file`'s private data.
300         // - `default_llseek()` does not access the `struct file`'s private data.
310 ) -> isize {  in blob_write()
312     // - `file` is a valid pointer to a `struct file`.  in blob_write()
313     // - The type invariant of `FileOps` guarantees that `private_data` points to a valid `T`.  in blob_write()
317     // - `ppos` is a valid `file::Offset` pointer.  in blob_write()
318     // - We have exclusive access to `ppos`.  in blob_write()
323     let ret = || -> Result<isize> {  in blob_write()
324         let read = this.read_from_slice(&mut reader, pos)?;  in blob_write()  localVariable
326         Ok(read.try_into()?)  in blob_write()
340 impl<T: BinaryReader + Sync> BinaryWriteFile<T> for T {
351         // - The private data of `struct inode` does always contain a pointer to a valid `T`.
352         // - `simple_open()` stores the `struct inode`'s private data in the private data of the
354         // - `blob_write()` re-creates a reference to `T` from the `struct file`'s private data.
355         // - `default_llseek()` does not access the `struct file`'s private data.
360 /// Representation of [`FileOps`] for read/write binary files.
365 impl<T: BinaryWriter + BinaryReader + Sync> BinaryReadWriteFile<T> for T {
368             read: Some(blob_read::<T>),
377         // - The private data of `struct inode` does always contain a pointer to a valid `T`.
378         // - `simple_open()` stores the `struct inode`'s private data in the private data of the
380         // - `blob_read()` re-creates a reference to `T` from the `struct file`'s private data.
381         // - `blob_write()` re-creates a reference to `T` from the `struct file`'s private data.
382         // - `default_llseek()` does not access the `struct file`'s private data.