libbinder_rs: PartialEq for ParcelFileDescriptor
NDK's ScopedFileDescriptor can be checked for equality. Add impl for
PartialEq for ParcelFileDescriptor.
With this, @RustDerive(PartialEq=true) works when the parcelable has
a ParcelFileDescriptor field.
Bug: n/a
Test: aidl_integration_test
Change-Id: I94d064db46f3e1bf43180e4fee9cf2a0487980e7
diff --git a/libs/binder/rust/src/parcel/file_descriptor.rs b/libs/binder/rust/src/parcel/file_descriptor.rs
index b0dea94..4d3d59a 100644
--- a/libs/binder/rust/src/parcel/file_descriptor.rs
+++ b/libs/binder/rust/src/parcel/file_descriptor.rs
@@ -60,6 +60,16 @@
}
}
+impl PartialEq for ParcelFileDescriptor {
+ // Since ParcelFileDescriptors own the FD, if this function ever returns true (and it is used to
+ // compare two different objects), then it would imply that an FD is double-owned.
+ fn eq(&self, other: &Self) -> bool {
+ self.as_raw_fd() == other.as_raw_fd()
+ }
+}
+
+impl Eq for ParcelFileDescriptor {}
+
impl Serialize for ParcelFileDescriptor {
fn serialize(&self, parcel: &mut BorrowedParcel<'_>) -> Result<()> {
let fd = self.0.as_raw_fd();