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Lookup-time passthrough initialization #689

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Lookup-time passthrough initialization #689

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16 changes: 16 additions & 0 deletions src/reply.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -270,6 +270,14 @@ impl ReplyEntry {
));
}

/// Registers a fd for passthrough, returning a `BackingId`. Once you have the backing ID, you can pass it as an argument in [`ReplyOpen::opened_passthrough`] or [`ReplyCreate::created_passthrough`].
///
/// This method is ideal for registering a backing ID for an inode at first lookup. This method should only be called once per inode lifecycle.
pub fn open_backing(&self, fd: impl std::os::fd::AsFd) -> std::io::Result<BackingId> {
// TODO: assert passthrough capability is enabled.
self.reply.sender.as_ref().unwrap().open_backing(fd.as_fd())
}

/// Reply to a request with the given error code
pub fn error(self, err: Errno) {
self.reply.error(err);
Expand Down Expand Up @@ -781,6 +789,14 @@ impl ReplyDirectoryPlus {
))
}

/// Registers a fd for passthrough, returning a `BackingId`. Once you have the backing ID, you can pass it as an argument in [`ReplyOpen::opened_passthrough`] or [`ReplyCreate::created_passthrough`].
///
/// This method is ideal for registering a backing ID for an inode at first lookup. This method should only be called once per inode lifecycle.
pub fn open_backing(&self, fd: impl std::os::fd::AsFd) -> std::io::Result<BackingId> {
// TODO: assert passthrough capability is enabled.
self.reply.sender.as_ref().unwrap().open_backing(fd.as_fd())
}

/// Reply to a request with the filled directory buffer
pub fn ok(self) {
let response: ll::ResponseData = self.buf.into();
Expand Down
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