fn add_indexing_worker(&mut self) -> Result<()> {
        let document_receiver_clone = self.operation_receiver.clone();
        let mut segment_updater = self.segment_updater.clone();

        let mut delete_cursor = self.delete_queue.cursor();

        let mem_budget = self.heap_size_in_bytes_per_thread;
        let index = self.index.clone();
        let join_handle: JoinHandle<Result<()>> = thread::Builder::new()
            .name(format!("thrd-tantivy-index{}", self.worker_id))
            .spawn(move || {
                loop {
                    let mut document_iterator =
                        document_receiver_clone.clone().into_iter().peekable();

                    // the peeking here is to avoid
                    // creating a new segment's files
                    // if no document are available.
                    //
                    // this is a valid guarantee as the
                    // peeked document now belongs to
                    // our local iterator.
                    if let Some(operations) = document_iterator.peek() {
                        if let Some(first) = operations.first() {
                            delete_cursor.skip_to(first.opstamp);
                        } else {
                            return Ok(());
                        }
                    } else {
                        // No more documents.
                        // Happens when there is a commit, or if the `IndexWriter`
                        // was dropped.
                        return Ok(());
                    }
                    let segment = index.new_segment();
                    index_documents(
                        mem_budget,
                        &segment,
                        &mut document_iterator,
                        &mut segment_updater,
                        delete_cursor.clone(),
                    )?;
                }
            })?;
        self.worker_id += 1;
        self.workers_join_handle.push(join_handle);
        Ok(())
    }
/// Spawns a new worker thread for indexing.
/// The thread consumes documents from the pipeline.
Spawns a new worker thread for indexing.
The thread consumes documents from the pipeline.
Spawns a new worker thread for indexing . The thread consumes documents from the pipeline .
fn add_indexing_worker(&mut self) -> Result<()> {
        let document_receiver_clone = self.operation_receiver.clone();
        let mut segment_updater = self.segment_updater.clone();
        let mut delete_cursor = self.delete_queue.cursor();
        let mem_budget = self.heap_size_in_bytes_per_thread;
        let index = self.index.clone();
        let join_handle: JoinHandle<Result<()>> = thread::Builder::new()
            .name(format!("thrd-tantivy-index{}", self.worker_id))
            .spawn(move || {
                loop {
                    let mut document_iterator =
                        document_receiver_clone.clone().into_iter().peekable();
                    // the peeking here is to avoid
                    // creating a new segment's files
                    // if no document are available.
                    //
                    // this is a valid guarantee as the
                    // peeked document now belongs to
                    // our local iterator.
                    if let Some(operations) = document_iterator.peek() {
                        if let Some(first) = operations.first() {
                            delete_cursor.skip_to(first.opstamp);
                        } else {
                            return Ok(());
                        }
                    } else {
                        // No more documents.
                        // Happens when there is a commit, or if the `IndexWriter`
                        // was dropped.
                        return Ok(());
                    }
                    let segment = index.new_segment();
                    index_documents(
                        mem_budget,
                        &segment,
                        &mut document_iterator,
                        &mut segment_updater,
                        delete_cursor.clone(),
                    )?;
                }
            })?;
        self.worker_id += 1;
        self.workers_join_handle.push(join_handle);
        Ok(())
    }
fn add_indexing_worker ( & mut self ) -> Result < ( ) > { let document_receiver_clone = self . operation_receiver . clone ( ) ; let mut segment_updater = self . segment_updater . clone ( ) ; let mut delete_cursor = self . delete_queue . cursor ( ) ; let mem_budget = self . heap_size_in_bytes_per_thread ; let index = self . index . clone ( ) ; let join_handle : JoinHandle < Result < ( ) > > = thread :: Builder :: new ( ) . name ( format ! ( " " self worker_id ) ) . spawn ( move | | { loop { let mut document_iterator = document_receiver_clone . clone ( ) . into_iter ( ) . peekable ( ) ; // the peeking here is to avoid // creating a new segment's files // if no document are available. // // this is a valid guarantee as the // peeked document now belongs to // our local iterator. if let Some ( operations ) = document_iterator . peek ( ) { if let Some ( first ) = operations . first ( ) { delete_cursor . skip_to ( first . opstamp ) ; } else { return Ok ( ( ) ) ; } } else { // No more documents. // Happens when there is a commit, or if the `IndexWriter` // was dropped. return Ok ( ( ) ) ; } let segment = index . new_segment ( ) ; index_documents ( mem_budget , & segment , & mut document_iterator , & mut segment_updater , delete_cursor . clone ( ) , ) ? ; } } ) ? ; self . worker_id += 1 ; self . workers_join_handle . push ( join_handle ) ; Ok ( ( ) ) }
Spawns a new worker thread for indexing.
Spawns a new worker thread for indexing .
&mut self
&mut self