qemu-api/src/chardev.rs

3 // SPDX-License-Identifier: GPL-2.0-or-later
14     fmt::{self, Debug},
37 /// back-end that is used for example by a device.  Compared to the
39 /// because the QOM object ([`bindings::Chardev`]) contains a pointer to
47     fn flush(&mut self) -> io::Result<()> {  in flush()
51     fn write(&mut self, buf: &[u8]) -> io::Result<usize> {  in write()
59     fn write_all(&mut self, buf: &[u8]) -> io::Result<()> {  in write_all()
74 impl Debug for CharBackend {
75     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {  in fmt()
78         Debug::fmt(unsafe { &*chr }, f)  in fmt()
90     /// Enable the front-end's character device handlers, if there is an
111         ) -> c_int {  in enable_handlers()
114             let owner: &T = unsafe { &*(opaque.cast::<T>()) };  in enable_handlers()
126             let owner: &T = unsafe { &*(opaque.cast::<T>()) };  in enable_handlers()
137             let owner: &T = unsafe { &*(opaque.cast::<T>()) };  in enable_handlers()
163                 (owner as *const T).cast_mut().cast::<c_void>(),  in enable_handlers()
170     /// Disable the front-end's character device handlers.
199     pub fn borrow_mut(&self) -> impl Write + '_ {  in borrow_mut()
205     pub fn send_break(&self, long: bool) -> io::Result<()> {  in send_break()
213                 addr_of_mut!(duration).cast::<c_void>(),  in send_break()
227     pub fn write(&self, buf: &[u8]) -> io::Result<usize> {  in write()
229         // SAFETY: qemu_chr_fe_write is thread-safe  in write()
241     pub fn write_all(&self, buf: &[u8]) -> io::Result<()> {  in write_all()
243         // SAFETY: qemu_chr_fe_write_all is thread-safe  in write_all()