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library: std: sys: pal: uefi: Add some comments #146964

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Sep 24, 2025
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library: std: sys: pal: uefi: Add some comments #146964

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4 changes: 4 additions & 0 deletions library/std/src/sys/pal/uefi/helpers.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -92,6 +92,9 @@ pub(crate) fn locate_handles(mut guid: Guid) -> io::Result<Vec<NonNull<crate::ff
///
/// Queries a handle to determine if it supports a specified protocol. If the protocol is
/// supported by the handle, it opens the protocol on behalf of the calling agent.
///
/// The protocol is opened with the attribute GET_PROTOCOL, which means the caller is not required
/// to close the protocol interface with `EFI_BOOT_SERVICES.CloseProtocol()`
pub(crate) fn open_protocol<T>(
handle: NonNull<crate::ffi::c_void>,
mut protocol_guid: Guid,
Expand Down Expand Up @@ -473,6 +476,7 @@ impl<'a> crate::fmt::Debug for DevicePathNode<'a> {
}
}

/// Protocols installed by Rust side on a handle.
pub(crate) struct OwnedProtocol<T> {
guid: r_efi::efi::Guid,
handle: NonNull<crate::ffi::c_void>,
Expand Down
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