forked from mirrors/gstreamer-rs
gstreamer: Only use a single temporary Vec
for [T]::to_glib_none()
for miniobjects
The value itself is already kept alive via the stash and we only need a temporary `Vec` to be able to append the terminating `NULL` pointer. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer-rs/-/merge_requests/1171>
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parent
e70536f6b2
commit
f166e80a79
1 changed files with 9 additions and 10 deletions
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@ -187,35 +187,34 @@ macro_rules! mini_object_wrapper (
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impl<'a> $crate::glib::translate::ToGlibContainerFromSlice<'a, *mut *mut $ffi_name> for $name {
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#[allow(clippy::type_complexity)]
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type Storage = (
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Vec<$crate::glib::translate::Stash<'a, *mut $ffi_name, Self>>,
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std::marker::PhantomData<&'a [$name]>,
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Option<Vec<*mut $ffi_name>>,
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);
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fn to_glib_none_from_slice(t: &'a [$name]) -> (*mut *mut $ffi_name, Self::Storage) {
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skip_assert_initialized!();
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let v: Vec<_> = t.iter().map(|s| $crate::glib::translate::ToGlibPtr::to_glib_none(s)).collect();
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let mut v_ptr: Vec<_> = v.iter().map(|s| s.0).collect();
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v_ptr.push(std::ptr::null_mut() as *mut $ffi_name);
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let mut v_ptr = Vec::with_capacity(t.len() + 1);
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v_ptr.extend(t.iter().map(|t| t.as_mut_ptr()));
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v_ptr.push(std::ptr::null_mut());
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(v_ptr.as_ptr() as *mut *mut $ffi_name, (v, Some(v_ptr)))
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(v_ptr.as_ptr() as *mut *mut $ffi_name, (std::marker::PhantomData, Some(v_ptr)))
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}
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fn to_glib_container_from_slice(t: &'a [$name]) -> (*mut *mut $ffi_name, Self::Storage) {
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skip_assert_initialized!();
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let v: Vec<_> = t.iter().map(|s| $crate::glib::translate::ToGlibPtr::to_glib_none(s)).collect();
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let v_ptr = unsafe {
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let v_ptr = $crate::glib::ffi::g_malloc0(std::mem::size_of::<*mut $ffi_name>() * t.len() + 1)
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as *mut *mut $ffi_name;
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for (i, s) in v.iter().enumerate() {
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std::ptr::write(v_ptr.add(i), s.0);
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for (i, t) in t.iter().enumerate() {
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std::ptr::write(v_ptr.add(i), t.as_mut_ptr());
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}
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v_ptr
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};
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(v_ptr, (v, None))
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(v_ptr, (std::marker::PhantomData, None))
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}
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fn to_glib_full_from_slice(t: &[$name]) -> *mut *mut $ffi_name {
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@ -238,7 +237,7 @@ macro_rules! mini_object_wrapper (
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{
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#[allow(clippy::type_complexity)]
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type Storage = (
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Vec<$crate::glib::translate::Stash<'a, *mut $ffi_name, $name>>,
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std::marker::PhantomData<&'a [$name]>,
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Option<Vec<*mut $ffi_name>>,
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);
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