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gst: BufferList::foreach{_mut} discard bool result

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If we really wanted to return a value, we would use `ControlFlow`. In Rust, if
we need to inform the caller that processing has stopped, we'd rather do this by
updating a variable from within the `func`.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer-rs/-/merge_requests/1584>
This commit is contained in:
François Laignel 2024-11-06 16:01:39 +01:00
parent 33781c5e65
commit 3f969485b7
1 changed files with 6 additions and 6 deletions
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12
gstreamer/src/bufferlist.rs
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@ -136,7 +136,7 @@ impl BufferListRef {
} }
#[doc(alias = "gst_buffer_list_foreach")] #[doc(alias = "gst_buffer_list_foreach")]
pub fn foreach<F: FnMut(&Buffer, usize) -> ControlFlow<(), ()>>(&self, func: F) -> bool { pub fn foreach<F: FnMut(&Buffer, usize) -> ControlFlow<(), ()>>(&self, func: F) {
unsafe extern "C" fn trampoline<F: FnMut(&Buffer, usize) -> ControlFlow<(), ()>>( unsafe extern "C" fn trampoline<F: FnMut(&Buffer, usize) -> ControlFlow<(), ()>>(
buffer: *mut *mut ffi::GstBuffer, buffer: *mut *mut ffi::GstBuffer,
idx: u32, idx: u32,
@ -152,11 +152,11 @@ impl BufferListRef {
let mut func = func; let mut func = func;
let func_ptr: &mut F = &mut func; let func_ptr: &mut F = &mut func;
from_glib(ffi::gst_buffer_list_foreach( let _ = ffi::gst_buffer_list_foreach(
self.as_ptr() as *mut _, self.as_ptr() as *mut _,
Some(trampoline::<F>), Some(trampoline::<F>),
func_ptr as *mut _ as *mut _, func_ptr as *mut _ as *mut _,
)) );
} }
} }
@ -164,7 +164,7 @@ impl BufferListRef {
pub fn foreach_mut<F: FnMut(Buffer, usize) -> ControlFlow<Option<Buffer>, Option<Buffer>>>( pub fn foreach_mut<F: FnMut(Buffer, usize) -> ControlFlow<Option<Buffer>, Option<Buffer>>>(
&mut self, &mut self,
func: F, func: F,
) -> bool { ) {
unsafe extern "C" fn trampoline< unsafe extern "C" fn trampoline<
F: FnMut(Buffer, usize) -> ControlFlow<Option<Buffer>, Option<Buffer>>, F: FnMut(Buffer, usize) -> ControlFlow<Option<Buffer>, Option<Buffer>>,
>( >(
@ -202,11 +202,11 @@ impl BufferListRef {
let mut func = func; let mut func = func;
let func_ptr: &mut F = &mut func; let func_ptr: &mut F = &mut func;
from_glib(ffi::gst_buffer_list_foreach( let _ = ffi::gst_buffer_list_foreach(
self.as_ptr() as *mut _, self.as_ptr() as *mut _,
Some(trampoline::<F>), Some(trampoline::<F>),
func_ptr as *mut _ as *mut _, func_ptr as *mut _ as *mut _,
)) );
} }
} }
} }