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Don't use unnecessary RefCell wrappers for FnMut callbacks

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They don't add any safety as this is via unsafe code anyway and are not
needed to get mutable references in this context anyway, while adding a
bit of runtime overhead.
This commit is contained in:
Sebastian Dröge 2022-04-03 11:15:19 +03:00
parent 8908d4bc98
commit 73ab9054c4
5 changed files with 68 additions and 91 deletions
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71
gstreamer-app/src/app_sink.rs
View file

@ -4,7 +4,6 @@ use crate::AppSink;
use glib::ffi::gpointer; use glib::ffi::gpointer;
use glib::prelude::*; use glib::prelude::*;
use glib::translate::*; use glib::translate::*;
use std::cell::RefCell;
use std::mem; use std::mem;
use std::panic; use std::panic;
use std::ptr; use std::ptr;
@ -22,18 +21,14 @@ use {
#[allow(clippy::type_complexity)] #[allow(clippy::type_complexity)]
pub struct AppSinkCallbacks { pub struct AppSinkCallbacks {
eos: Option<RefCell<Box<dyn FnMut(&AppSink) + Send + 'static>>>, eos: Option<Box<dyn FnMut(&AppSink) + Send + 'static>>,
new_preroll: Option< new_preroll: Option<
RefCell<
Box<dyn FnMut(&AppSink) -> Result<gst::FlowSuccess, gst::FlowError> + Send + 'static>, Box<dyn FnMut(&AppSink) -> Result<gst::FlowSuccess, gst::FlowError> + Send + 'static>,
>, >,
>,
new_sample: Option< new_sample: Option<
RefCell<
Box<dyn FnMut(&AppSink) -> Result<gst::FlowSuccess, gst::FlowError> + Send + 'static>, Box<dyn FnMut(&AppSink) -> Result<gst::FlowSuccess, gst::FlowError> + Send + 'static>,
>, >,
>, new_event: Option<Box<dyn FnMut(&AppSink) -> bool + Send + 'static>>,
new_event: Option<RefCell<Box<dyn FnMut(&AppSink) -> bool + Send + 'static>>>,
panicked: AtomicBool, panicked: AtomicBool,
callbacks: ffi::GstAppSinkCallbacks, callbacks: ffi::GstAppSinkCallbacks,
} }
@ -56,24 +51,20 @@ impl AppSinkCallbacks {
#[allow(clippy::type_complexity)] #[allow(clippy::type_complexity)]
#[must_use = "The builder must be built to be used"] #[must_use = "The builder must be built to be used"]
pub struct AppSinkCallbacksBuilder { pub struct AppSinkCallbacksBuilder {
eos: Option<RefCell<Box<dyn FnMut(&AppSink) + Send + 'static>>>, eos: Option<Box<dyn FnMut(&AppSink) + Send + 'static>>,
new_preroll: Option< new_preroll: Option<
RefCell<
Box<dyn FnMut(&AppSink) -> Result<gst::FlowSuccess, gst::FlowError> + Send + 'static>, Box<dyn FnMut(&AppSink) -> Result<gst::FlowSuccess, gst::FlowError> + Send + 'static>,
>, >,
>,
new_sample: Option< new_sample: Option<
RefCell<
Box<dyn FnMut(&AppSink) -> Result<gst::FlowSuccess, gst::FlowError> + Send + 'static>, Box<dyn FnMut(&AppSink) -> Result<gst::FlowSuccess, gst::FlowError> + Send + 'static>,
>, >,
>, new_event: Option<Box<dyn FnMut(&AppSink) -> bool + Send + 'static>>,
new_event: Option<RefCell<Box<dyn FnMut(&AppSink) -> bool + Send + 'static>>>,
} }
impl AppSinkCallbacksBuilder { impl AppSinkCallbacksBuilder {
pub fn eos<F: FnMut(&AppSink) + Send + 'static>(self, eos: F) -> Self { pub fn eos<F: FnMut(&AppSink) + Send + 'static>(self, eos: F) -> Self {
Self { Self {
eos: Some(RefCell::new(Box::new(eos))), eos: Some(Box::new(eos)),
..self ..self
} }
} }
@ -85,7 +76,7 @@ impl AppSinkCallbacksBuilder {
new_preroll: F, new_preroll: F,
) -> Self { ) -> Self {
Self { Self {
new_preroll: Some(RefCell::new(Box::new(new_preroll))), new_preroll: Some(Box::new(new_preroll)),
..self ..self
} }
} }
@ -97,7 +88,7 @@ impl AppSinkCallbacksBuilder {
new_sample: F, new_sample: F,
) -> Self { ) -> Self {
Self { Self {
new_sample: Some(RefCell::new(Box::new(new_sample))), new_sample: Some(Box::new(new_sample)),
..self ..self
} }
} }
@ -106,7 +97,7 @@ impl AppSinkCallbacksBuilder {
#[cfg_attr(feature = "dox", doc(cfg(feature = "v1_20")))] #[cfg_attr(feature = "dox", doc(cfg(feature = "v1_20")))]
pub fn new_event<F: FnMut(&AppSink) -> bool + Send + 'static>(self, new_event: F) -> Self { pub fn new_event<F: FnMut(&AppSink) -> bool + Send + 'static>(self, new_event: F) -> Self {
Self { Self {
new_event: Some(RefCell::new(Box::new(new_event))), new_event: Some(Box::new(new_event)),
..self ..self
} }
} }
@ -159,21 +150,21 @@ fn post_panic_error_message(element: &AppSink, err: &dyn std::any::Any) {
} }
unsafe extern "C" fn trampoline_eos(appsink: *mut ffi::GstAppSink, callbacks: gpointer) { unsafe extern "C" fn trampoline_eos(appsink: *mut ffi::GstAppSink, callbacks: gpointer) {
let callbacks = &*(callbacks as *const AppSinkCallbacks); let callbacks = callbacks as *mut AppSinkCallbacks;
let element: Borrowed<AppSink> = from_glib_borrow(appsink); let element: Borrowed<AppSink> = from_glib_borrow(appsink);
if callbacks.panicked.load(Ordering::Relaxed) { if (*callbacks).panicked.load(Ordering::Relaxed) {
let element: Borrowed<AppSink> = from_glib_borrow(appsink); let element: Borrowed<AppSink> = from_glib_borrow(appsink);
gst::element_error!(element, gst::LibraryError::Failed, ["Panicked"]); gst::element_error!(element, gst::LibraryError::Failed, ["Panicked"]);
return; return;
} }
if let Some(ref eos) = callbacks.eos { if let Some(ref mut eos) = (*callbacks).eos {
let result = panic::catch_unwind(panic::AssertUnwindSafe(|| (*eos.borrow_mut())(&element))); let result = panic::catch_unwind(panic::AssertUnwindSafe(|| eos(&element)));
match result { match result {
Ok(result) => result, Ok(result) => result,
Err(err) => { Err(err) => {
callbacks.panicked.store(true, Ordering::Relaxed); (*callbacks).panicked.store(true, Ordering::Relaxed);
post_panic_error_message(&element, &err); post_panic_error_message(&element, &err);
} }
} }
@ -184,23 +175,21 @@ unsafe extern "C" fn trampoline_new_preroll(
appsink: *mut ffi::GstAppSink, appsink: *mut ffi::GstAppSink,
callbacks: gpointer, callbacks: gpointer,
) -> gst::ffi::GstFlowReturn { ) -> gst::ffi::GstFlowReturn {
let callbacks = &*(callbacks as *const AppSinkCallbacks); let callbacks = callbacks as *mut AppSinkCallbacks;
let element: Borrowed<AppSink> = from_glib_borrow(appsink); let element: Borrowed<AppSink> = from_glib_borrow(appsink);
if callbacks.panicked.load(Ordering::Relaxed) { if (*callbacks).panicked.load(Ordering::Relaxed) {
let element: Borrowed<AppSink> = from_glib_borrow(appsink); let element: Borrowed<AppSink> = from_glib_borrow(appsink);
gst::element_error!(element, gst::LibraryError::Failed, ["Panicked"]); gst::element_error!(element, gst::LibraryError::Failed, ["Panicked"]);
return gst::FlowReturn::Error.into_glib(); return gst::FlowReturn::Error.into_glib();
} }
let ret = if let Some(ref new_preroll) = callbacks.new_preroll { let ret = if let Some(ref mut new_preroll) = (*callbacks).new_preroll {
let result = panic::catch_unwind(panic::AssertUnwindSafe(|| { let result = panic::catch_unwind(panic::AssertUnwindSafe(|| new_preroll(&element).into()));
(*new_preroll.borrow_mut())(&element).into()
}));
match result { match result {
Ok(result) => result, Ok(result) => result,
Err(err) => { Err(err) => {
callbacks.panicked.store(true, Ordering::Relaxed); (*callbacks).panicked.store(true, Ordering::Relaxed);
post_panic_error_message(&element, &err); post_panic_error_message(&element, &err);
gst::FlowReturn::Error gst::FlowReturn::Error
@ -217,23 +206,21 @@ unsafe extern "C" fn trampoline_new_sample(
appsink: *mut ffi::GstAppSink, appsink: *mut ffi::GstAppSink,
callbacks: gpointer, callbacks: gpointer,
) -> gst::ffi::GstFlowReturn { ) -> gst::ffi::GstFlowReturn {
let callbacks = &*(callbacks as *const AppSinkCallbacks); let callbacks = callbacks as *mut AppSinkCallbacks;
let element: Borrowed<AppSink> = from_glib_borrow(appsink); let element: Borrowed<AppSink> = from_glib_borrow(appsink);
if callbacks.panicked.load(Ordering::Relaxed) { if (*callbacks).panicked.load(Ordering::Relaxed) {
let element: Borrowed<AppSink> = from_glib_borrow(appsink); let element: Borrowed<AppSink> = from_glib_borrow(appsink);
gst::element_error!(element, gst::LibraryError::Failed, ["Panicked"]); gst::element_error!(element, gst::LibraryError::Failed, ["Panicked"]);
return gst::FlowReturn::Error.into_glib(); return gst::FlowReturn::Error.into_glib();
} }
let ret = if let Some(ref new_sample) = callbacks.new_sample { let ret = if let Some(ref mut new_sample) = (*callbacks).new_sample {
let result = panic::catch_unwind(panic::AssertUnwindSafe(|| { let result = panic::catch_unwind(panic::AssertUnwindSafe(|| new_sample(&element).into()));
(*new_sample.borrow_mut())(&element).into()
}));
match result { match result {
Ok(result) => result, Ok(result) => result,
Err(err) => { Err(err) => {
callbacks.panicked.store(true, Ordering::Relaxed); (*callbacks).panicked.store(true, Ordering::Relaxed);
post_panic_error_message(&element, &err); post_panic_error_message(&element, &err);
gst::FlowReturn::Error gst::FlowReturn::Error
@ -250,23 +237,21 @@ unsafe extern "C" fn trampoline_new_event(
appsink: *mut ffi::GstAppSink, appsink: *mut ffi::GstAppSink,
callbacks: gpointer, callbacks: gpointer,
) -> glib::ffi::gboolean { ) -> glib::ffi::gboolean {
let callbacks = &*(callbacks as *const AppSinkCallbacks); let callbacks = callbacks as *mut AppSinkCallbacks;
let element: Borrowed<AppSink> = from_glib_borrow(appsink); let element: Borrowed<AppSink> = from_glib_borrow(appsink);
if callbacks.panicked.load(Ordering::Relaxed) { if (*callbacks).panicked.load(Ordering::Relaxed) {
let element: Borrowed<AppSink> = from_glib_borrow(appsink); let element: Borrowed<AppSink> = from_glib_borrow(appsink);
gst::element_error!(element, gst::LibraryError::Failed, ["Panicked"]); gst::element_error!(element, gst::LibraryError::Failed, ["Panicked"]);
return false.into_glib(); return false.into_glib();
} }
let ret = if let Some(ref new_event) = callbacks.new_event { let ret = if let Some(ref mut new_event) = (*callbacks).new_event {
let result = panic::catch_unwind(panic::AssertUnwindSafe(|| { let result = panic::catch_unwind(panic::AssertUnwindSafe(|| new_event(&element)));
(*new_event.borrow_mut())(&element)
}));
match result { match result {
Ok(result) => result, Ok(result) => result,
Err(err) => { Err(err) => {
callbacks.panicked.store(true, Ordering::Relaxed); (*callbacks).panicked.store(true, Ordering::Relaxed);
post_panic_error_message(&element, &err); post_panic_error_message(&element, &err);
false false

40
gstreamer-app/src/app_src.rs
View file

@ -6,7 +6,6 @@ use glib::prelude::*;
use glib::translate::*; use glib::translate::*;
use crate::AppSrc; use crate::AppSrc;
use std::cell::RefCell;
use std::mem; use std::mem;
use std::panic; use std::panic;
use std::pin::Pin; use std::pin::Pin;
@ -17,7 +16,7 @@ use std::task::{Context, Poll, Waker};
#[allow(clippy::type_complexity)] #[allow(clippy::type_complexity)]
pub struct AppSrcCallbacks { pub struct AppSrcCallbacks {
need_data: Option<RefCell<Box<dyn FnMut(&AppSrc, u32) + Send + 'static>>>, need_data: Option<Box<dyn FnMut(&AppSrc, u32) + Send + 'static>>,
enough_data: Option<Box<dyn Fn(&AppSrc) + Send + Sync + 'static>>, enough_data: Option<Box<dyn Fn(&AppSrc) + Send + Sync + 'static>>,
seek_data: Option<Box<dyn Fn(&AppSrc, u64) -> bool + Send + Sync + 'static>>, seek_data: Option<Box<dyn Fn(&AppSrc, u64) -> bool + Send + Sync + 'static>>,
panicked: AtomicBool, panicked: AtomicBool,
@ -42,7 +41,7 @@ impl AppSrcCallbacks {
#[allow(clippy::type_complexity)] #[allow(clippy::type_complexity)]
#[must_use = "The builder must be built to be used"] #[must_use = "The builder must be built to be used"]
pub struct AppSrcCallbacksBuilder { pub struct AppSrcCallbacksBuilder {
need_data: Option<RefCell<Box<dyn FnMut(&AppSrc, u32) + Send + 'static>>>, need_data: Option<Box<dyn FnMut(&AppSrc, u32) + Send + 'static>>,
enough_data: Option<Box<dyn Fn(&AppSrc) + Send + Sync + 'static>>, enough_data: Option<Box<dyn Fn(&AppSrc) + Send + Sync + 'static>>,
seek_data: Option<Box<dyn Fn(&AppSrc, u64) -> bool + Send + Sync + 'static>>, seek_data: Option<Box<dyn Fn(&AppSrc, u64) -> bool + Send + Sync + 'static>>,
} }
@ -50,7 +49,7 @@ pub struct AppSrcCallbacksBuilder {
impl AppSrcCallbacksBuilder { impl AppSrcCallbacksBuilder {
pub fn need_data<F: FnMut(&AppSrc, u32) + Send + 'static>(self, need_data: F) -> Self { pub fn need_data<F: FnMut(&AppSrc, u32) + Send + 'static>(self, need_data: F) -> Self {
Self { Self {
need_data: Some(RefCell::new(Box::new(need_data))), need_data: Some(Box::new(need_data)),
..self ..self
} }
} }
@ -126,23 +125,21 @@ unsafe extern "C" fn trampoline_need_data(
length: u32, length: u32,
callbacks: gpointer, callbacks: gpointer,
) { ) {
let callbacks = &*(callbacks as *const AppSrcCallbacks); let callbacks = callbacks as *mut AppSrcCallbacks;
let element: Borrowed<AppSrc> = from_glib_borrow(appsrc); let element: Borrowed<AppSrc> = from_glib_borrow(appsrc);
if callbacks.panicked.load(Ordering::Relaxed) { if (*callbacks).panicked.load(Ordering::Relaxed) {
let element: Borrowed<AppSrc> = from_glib_borrow(appsrc); let element: Borrowed<AppSrc> = from_glib_borrow(appsrc);
gst::element_error!(element, gst::LibraryError::Failed, ["Panicked"]); gst::element_error!(element, gst::LibraryError::Failed, ["Panicked"]);
return; return;
} }
if let Some(ref need_data) = callbacks.need_data { if let Some(ref mut need_data) = (*callbacks).need_data {
let result = panic::catch_unwind(panic::AssertUnwindSafe(|| { let result = panic::catch_unwind(panic::AssertUnwindSafe(|| need_data(&element, length)));
(*need_data.borrow_mut())(&element, length)
}));
match result { match result {
Ok(result) => result, Ok(result) => result,
Err(err) => { Err(err) => {
callbacks.panicked.store(true, Ordering::Relaxed); (*callbacks).panicked.store(true, Ordering::Relaxed);
post_panic_error_message(&element, &err); post_panic_error_message(&element, &err);
} }
} }
@ -150,21 +147,21 @@ unsafe extern "C" fn trampoline_need_data(
} }
unsafe extern "C" fn trampoline_enough_data(appsrc: *mut ffi::GstAppSrc, callbacks: gpointer) { unsafe extern "C" fn trampoline_enough_data(appsrc: *mut ffi::GstAppSrc, callbacks: gpointer) {
let callbacks = &*(callbacks as *const AppSrcCallbacks); let callbacks = callbacks as *const AppSrcCallbacks;
let element: Borrowed<AppSrc> = from_glib_borrow(appsrc); let element: Borrowed<AppSrc> = from_glib_borrow(appsrc);
if callbacks.panicked.load(Ordering::Relaxed) { if (*callbacks).panicked.load(Ordering::Relaxed) {
let element: Borrowed<AppSrc> = from_glib_borrow(appsrc); let element: Borrowed<AppSrc> = from_glib_borrow(appsrc);
gst::element_error!(element, gst::LibraryError::Failed, ["Panicked"]); gst::element_error!(element, gst::LibraryError::Failed, ["Panicked"]);
return; return;
} }
if let Some(ref enough_data) = callbacks.enough_data { if let Some(ref enough_data) = (*callbacks).enough_data {
let result = panic::catch_unwind(panic::AssertUnwindSafe(|| (*enough_data)(&element))); let result = panic::catch_unwind(panic::AssertUnwindSafe(|| enough_data(&element)));
match result { match result {
Ok(result) => result, Ok(result) => result,
Err(err) => { Err(err) => {
callbacks.panicked.store(true, Ordering::Relaxed); (*callbacks).panicked.store(true, Ordering::Relaxed);
post_panic_error_message(&element, &err); post_panic_error_message(&element, &err);
} }
} }
@ -176,22 +173,21 @@ unsafe extern "C" fn trampoline_seek_data(
offset: u64, offset: u64,
callbacks: gpointer, callbacks: gpointer,
) -> gboolean { ) -> gboolean {
let callbacks = &*(callbacks as *const AppSrcCallbacks); let callbacks = callbacks as *const AppSrcCallbacks;
let element: Borrowed<AppSrc> = from_glib_borrow(appsrc); let element: Borrowed<AppSrc> = from_glib_borrow(appsrc);
if callbacks.panicked.load(Ordering::Relaxed) { if (*callbacks).panicked.load(Ordering::Relaxed) {
let element: Borrowed<AppSrc> = from_glib_borrow(appsrc); let element: Borrowed<AppSrc> = from_glib_borrow(appsrc);
gst::element_error!(element, gst::LibraryError::Failed, ["Panicked"]); gst::element_error!(element, gst::LibraryError::Failed, ["Panicked"]);
return false.into_glib(); return false.into_glib();
} }
let ret = if let Some(ref seek_data) = callbacks.seek_data { let ret = if let Some(ref seek_data) = (*callbacks).seek_data {
let result = let result = panic::catch_unwind(panic::AssertUnwindSafe(|| seek_data(&element, offset)));
panic::catch_unwind(panic::AssertUnwindSafe(|| (*seek_data)(&element, offset)));
match result { match result {
Ok(result) => result, Ok(result) => result,
Err(err) => { Err(err) => {
callbacks.panicked.store(true, Ordering::Relaxed); (*callbacks).panicked.store(true, Ordering::Relaxed);
post_panic_error_message(&element, &err); post_panic_error_message(&element, &err);
false false

9
gstreamer-rtsp-server/src/rtsp_session_pool.rs
View file

@ -5,15 +5,14 @@ use glib::ffi::{gboolean, gpointer};
use glib::prelude::*; use glib::prelude::*;
use glib::source::{Continue, Priority}; use glib::source::{Continue, Priority};
use glib::translate::*; use glib::translate::*;
use std::cell::RefCell;
use std::mem::transmute; use std::mem::transmute;
unsafe extern "C" fn trampoline_watch<F: FnMut(&RTSPSessionPool) -> Continue + Send + 'static>( unsafe extern "C" fn trampoline_watch<F: FnMut(&RTSPSessionPool) -> Continue + Send + 'static>(
pool: *mut ffi::GstRTSPSessionPool, pool: *mut ffi::GstRTSPSessionPool,
func: gpointer, func: gpointer,
) -> gboolean { ) -> gboolean {
let func: &RefCell<F> = &*(func as *const RefCell<F>); let func: &mut F = &mut *(func as *mut F);
(*func.borrow_mut())(&from_glib_borrow(pool)).into_glib() func(&from_glib_borrow(pool)).into_glib()
} }
unsafe extern "C" fn destroy_closure_watch< unsafe extern "C" fn destroy_closure_watch<
@ -21,12 +20,12 @@ unsafe extern "C" fn destroy_closure_watch<
>( >(
ptr: gpointer, ptr: gpointer,
) { ) {
Box::<RefCell<F>>::from_raw(ptr as *mut _); Box::<F>::from_raw(ptr as *mut _);
} }
fn into_raw_watch<F: FnMut(&RTSPSessionPool) -> Continue + Send + 'static>(func: F) -> gpointer { fn into_raw_watch<F: FnMut(&RTSPSessionPool) -> Continue + Send + 'static>(func: F) -> gpointer {
#[allow(clippy::type_complexity)] #[allow(clippy::type_complexity)]
let func: Box<RefCell<F>> = Box::new(RefCell::new(func)); let func: Box<F> = Box::new(func);
Box::into_raw(func) as gpointer Box::into_raw(func) as gpointer
} }

22
gstreamer/src/bus.rs
View file

@ -7,7 +7,6 @@ use glib::ffi::{gboolean, gpointer};
use glib::prelude::*; use glib::prelude::*;
use glib::source::{Continue, Priority, SourceId}; use glib::source::{Continue, Priority, SourceId};
use glib::translate::*; use glib::translate::*;
use std::cell::RefCell;
use std::future; use std::future;
use std::mem::transmute; use std::mem::transmute;
use std::pin::Pin; use std::pin::Pin;
@ -23,8 +22,8 @@ unsafe extern "C" fn trampoline_watch<F: FnMut(&Bus, &Message) -> Continue + Sen
msg: *mut ffi::GstMessage, msg: *mut ffi::GstMessage,
func: gpointer, func: gpointer,
) -> gboolean { ) -> gboolean {
let func: &RefCell<F> = &*(func as *const RefCell<F>); let func: &mut F = &mut *(func as *mut F);
(*func.borrow_mut())(&from_glib_borrow(bus), &Message::from_glib_borrow(msg)).into_glib() func(&from_glib_borrow(bus), &Message::from_glib_borrow(msg)).into_glib()
} }
unsafe extern "C" fn destroy_closure_watch< unsafe extern "C" fn destroy_closure_watch<
@ -32,12 +31,12 @@ unsafe extern "C" fn destroy_closure_watch<
>( >(
ptr: gpointer, ptr: gpointer,
) { ) {
Box::<RefCell<F>>::from_raw(ptr as *mut _); Box::<F>::from_raw(ptr as *mut _);
} }
fn into_raw_watch<F: FnMut(&Bus, &Message) -> Continue + Send + 'static>(func: F) -> gpointer { fn into_raw_watch<F: FnMut(&Bus, &Message) -> Continue + Send + 'static>(func: F) -> gpointer {
#[allow(clippy::type_complexity)] #[allow(clippy::type_complexity)]
let func: Box<RefCell<F>> = Box::new(RefCell::new(func)); let func: Box<F> = Box::new(func);
Box::into_raw(func) as gpointer Box::into_raw(func) as gpointer
} }
@ -46,22 +45,21 @@ unsafe extern "C" fn trampoline_watch_local<F: FnMut(&Bus, &Message) -> Continue
msg: *mut ffi::GstMessage, msg: *mut ffi::GstMessage,
func: gpointer, func: gpointer,
) -> gboolean { ) -> gboolean {
let func: &glib::thread_guard::ThreadGuard<RefCell<F>> = let func: &mut glib::thread_guard::ThreadGuard<F> =
&*(func as *const glib::thread_guard::ThreadGuard<RefCell<F>>); &mut *(func as *mut glib::thread_guard::ThreadGuard<F>);
(*func.get_ref().borrow_mut())(&from_glib_borrow(bus), &Message::from_glib_borrow(msg)) (func.get_mut())(&from_glib_borrow(bus), &Message::from_glib_borrow(msg)).into_glib()
.into_glib()
} }
unsafe extern "C" fn destroy_closure_watch_local<F: FnMut(&Bus, &Message) -> Continue + 'static>( unsafe extern "C" fn destroy_closure_watch_local<F: FnMut(&Bus, &Message) -> Continue + 'static>(
ptr: gpointer, ptr: gpointer,
) { ) {
Box::<glib::thread_guard::ThreadGuard<RefCell<F>>>::from_raw(ptr as *mut _); Box::<glib::thread_guard::ThreadGuard<F>>::from_raw(ptr as *mut _);
} }
fn into_raw_watch_local<F: FnMut(&Bus, &Message) -> Continue + 'static>(func: F) -> gpointer { fn into_raw_watch_local<F: FnMut(&Bus, &Message) -> Continue + 'static>(func: F) -> gpointer {
#[allow(clippy::type_complexity)] #[allow(clippy::type_complexity)]
let func: Box<glib::thread_guard::ThreadGuard<RefCell<F>>> = let func: Box<glib::thread_guard::ThreadGuard<F>> =
Box::new(glib::thread_guard::ThreadGuard::new(RefCell::new(func))); Box::new(glib::thread_guard::ThreadGuard::new(func));
Box::into_raw(func) as gpointer Box::into_raw(func) as gpointer
} }

9
gstreamer/src/pad.rs
View file

@ -19,7 +19,6 @@ use crate::QueryRef;
use crate::StaticPadTemplate; use crate::StaticPadTemplate;
use crate::{SpecificFormattedValue, SpecificFormattedValueIntrinsic}; use crate::{SpecificFormattedValue, SpecificFormattedValueIntrinsic};
use std::cell::RefCell;
use std::mem; use std::mem;
use std::num::NonZeroU64; use std::num::NonZeroU64;
use std::ops::ControlFlow; use std::ops::ControlFlow;
@ -1597,18 +1596,18 @@ unsafe extern "C" fn destroy_closure<F>(ptr: gpointer) {
} }
unsafe extern "C" fn trampoline_pad_task<F: FnMut() + Send + 'static>(func: gpointer) { unsafe extern "C" fn trampoline_pad_task<F: FnMut() + Send + 'static>(func: gpointer) {
let func: &RefCell<F> = &*(func as *const RefCell<F>); let func: &mut F = &mut *(func as *mut F);
(*func.borrow_mut())() func()
} }
fn into_raw_pad_task<F: FnMut() + Send + 'static>(func: F) -> gpointer { fn into_raw_pad_task<F: FnMut() + Send + 'static>(func: F) -> gpointer {
#[allow(clippy::type_complexity)] #[allow(clippy::type_complexity)]
let func: Box<RefCell<F>> = Box::new(RefCell::new(func)); let func: Box<F> = Box::new(func);
Box::into_raw(func) as gpointer Box::into_raw(func) as gpointer
} }
unsafe extern "C" fn destroy_closure_pad_task<F>(ptr: gpointer) { unsafe extern "C" fn destroy_closure_pad_task<F>(ptr: gpointer) {
Box::<RefCell<F>>::from_raw(ptr as *mut _); Box::<F>::from_raw(ptr as *mut _);
} }
impl Pad { impl Pad {