+bool Curl_pipeline_checkget_write(struct SessionHandle *data,
+ struct connectdata *conn);
+bool Curl_pipeline_checkget_read(struct SessionHandle *data,
+ struct connectdata *conn);
+void Curl_pipeline_leave_write(struct connectdata *conn);
+void Curl_pipeline_leave_read(struct connectdata *conn);
+bool Curl_recvpipe_head(struct SessionHandle *data,
+ struct connectdata *conn);
+bool Curl_sendpipe_head(struct SessionHandle *data,
+ struct connectdata *conn);
+