12     fn unmarshal(request_data: &str) -> Option<Self>  in unmarshal()
41 pub fn parse_content_length(request_data: &str) -> Option<u32> {  in parse_content_length()
45     let start_index = request_data.find(start)? + start.len();  in parse_content_length()
46     let end_index = request_data[start_index..].find(end)? + start_index;  in parse_content_length()
47     let length_str = &request_data[start_index..end_index];  in parse_content_length()
53     fn unmarshal(request_data: &str) -> Option<Self> {  in unmarshal()
54         log::trace!("len: {} content: {}", request_data.len(), request_data);  in unmarshal()
57         let header_end_idx = if let Some(idx) = request_data.find("\r\n\r\n") {  in unmarshal()
58             let data_except_body = &request_data[..idx];  in unmarshal()
115             request_data.len()  in unmarshal()
118         if request_data.len() > header_end_idx {  in unmarshal()
120             http_request.body = Some(request_data[header_end_idx..].to_string());  in unmarshal()
163     fn unmarshal(request_data: &str) -> Option<Self> {  in unmarshal()
165         let header_end_idx = if let Some(idx) = request_data.find("\r\n\r\n") {  in unmarshal()
166             let data_except_body = &request_data[..idx];  in unmarshal()
197         if request_data.len() > header_end_idx {  in unmarshal()
199             http_response.body = Some(request_data[header_end_idx..].to_string());  in unmarshal()