126 pub enum MessageWriteError {  enum
133 impl std::error::Error for MessageWriteError {}  implementation
135 impl std::fmt::Display for MessageWriteError {  implementation
138             MessageWriteError::BufferTooSmall => {  in fmt()
141             MessageWriteError::DupFdFailed(_) => {  in fmt()
187     ) -> Result<(usize, usize), MessageWriteError> {  in write_to_buffers()  argument
191         fn write_buf<T>(u: T, payload: &mut [T]) -> Result<&mut [T], MessageWriteError> {  in write_to_buffers()  argument
196                 Err(MessageWriteError::BufferTooSmall)  in write_to_buffers()
204         ) -> Result<&'a mut [u32], MessageWriteError> {  in write_to_buffers()  argument
209                 return Err(MessageWriteError::BufferTooSmall);  in write_to_buffers()
222             return Err(MessageWriteError::BufferTooSmall);  in write_to_buffers()
249                     let dup_fd = dup_fd_cloexec(fd).map_err(MessageWriteError::DupFdFailed)?;  in write_to_buffers()