1 // SPDX-License-Identifier: GPL-2.0
5 //! Utilities for working with `struct poll_table`.
16 /// Creates a [`PollCondVar`] initialiser with the given name and a newly-created lock class.
51     pub unsafe fn from_ptr<'a>(ptr: *mut bindings::poll_table) -> &'a mut PollTable {  in from_ptr()
57     fn get_qproc(&self) -> bindings::poll_queue_proc {  in get_qproc()
58         let ptr = self.0.get();  in get_qproc()
66     pub fn register_wait(&mut self, file: &File, cv: &PollCondVar) {  in register_wait()  argument
67         if let Some(qproc) = self.get_qproc() {  in register_wait()
68             // SAFETY: The pointers to `file` and `self` need to be valid for the duration of this  in register_wait()
76             unsafe { qproc(file.as_ptr() as _, cv.wait_queue_head.get(), self.0.get()) };  in register_wait()
92     pub fn new(name: &'static CStr, key: &'static LockClassKey) -> impl PinInit<Self> {  in new()  argument
93         pin_init!(Self {  in new()
94             inner <- CondVar::new(name, key),  in new()
103     fn deref(&self) -> &CondVar {  in deref()
104         &self.inner  in deref()
110     fn drop(self: Pin<&mut Self>) {  in drop()  argument
114         unsafe { bindings::__wake_up_pollfree(self.inner.wait_queue_head.get()) };  in drop()