Struct iostream::io::stream_rw::stream_reader::StreamReader

pub struct StreamReader<'a> {
    pub base_stream: &'a mut dyn Stream,
    // some fields omitted
}

reader stream struct

Fields

base_stream: &'a mut dyn Stream

Methods

impl<'a> StreamReader<'a>

pub fn from(stream: &'a mut dyn Stream) -> Result<StreamReader<'a>, String>

from stream use LittleEndian reader integer

Examples

 use iostream::io::*;
 let mut ms=MemoryStream::new();
 //...write data to ms
 let mut ws: StreamReader = StreamReader::from(&mut ms).unwrap();

pub fn from_big_endian(
    stream: &'a mut dyn Stream
) -> Result<StreamReader<'a>, String>

from stream use BigEndian reader integer

Examples

 use iostream::io::*;
 let mut ms=MemoryStream::new();
 //...write data to ms
 let mut ws: StreamReader = StreamReader::from_big_endian(&mut ms).unwrap();

pub fn peek(&mut self) -> Result<u8, StreamError>

peek the current stream next byte

pub fn read_byte(&mut self) -> Result<u8, StreamError>

read u8 from stream

pub fn read_all(&mut self, buf: &mut Vec<u8>) -> Result<usize, StreamError>

read vec from stream,return read length

pub fn read(
    &mut self,
    buf: &mut [u8],
    offset: usize,
    count: usize
) -> Result<usize, StreamError>

read u8 from stream,can use offset and count buff position,return read len

pub fn read_i16(&mut self) -> Result<i16, StreamError>

read i16 from stream,return it value

pub fn read_u16(&mut self) -> Result<u16, StreamError>

read u16 from stream,return it value

pub fn read_u32(&mut self) -> Result<u32, StreamError>

read u32 from stream,return it value

pub fn read_i32(&mut self) -> Result<i32, StreamError>

read i32 from stream,return it value

pub fn read_i64(&mut self) -> Result<i64, StreamError>

read i64 from stream,return it value

pub fn read_u64(&mut self) -> Result<u64, StreamError>

read u64 from stream,return it value

pub fn read_single(&mut self) -> Result<f32, StreamError>

read f32 from stream,return it value

pub fn read_double(&mut self) -> Result<f64, StreamError>

read f64 from stream,return it value

pub fn read_u8_array(&mut self, len: u32) -> Result<Vec<u8>, StreamError>

read vec from the current stream,can specify need read length to buffer

Examples

    use iostream::io::*;
    let mut ms=MemoryStream::new();
    let data:[u8;1024]=[5;1024];
    ms.write_all(&data).unwrap();

    ms.set_position(0).unwrap();

    let mut rs=StreamReader::from(&mut ms).unwrap();
    let rt= rs.read_u8_array(1024).unwrap();
    assert_eq!(data[..],rt[..] );

pub fn read_string(&mut self) -> Result<String, Box<dyn Error>>

read string to current stream

pub fn read_line(&mut self) -> Result<String, Box<dyn Error>>

read str line from current stream

pub fn read_all_lines(&mut self) -> Result<Vec<String>, Box<dyn Error>>

read all str line from current stream

pub fn read_all_text(&mut self) -> Result<String, Box<dyn Error>>

read all data to string