Function write_str_len

src/encode.rs:623–640

Encodes and attempts to write the most efficient string length implementation to the given write, returning the marker used. This function is useful when you want to get full control for writing the data itself, for example, when using non-blocking socket. # Errors This function will return `ValueWriteError` on any I/O error occurred while writing either the marker or the data, except the EINTR

(wr: &mut W, len: u32)

/// This function will return `ValueWriteError` on any I/O error occurred while writing either the
/// marker or the data, except the EINTR, which is handled internally.
pub fn write_str_len<W>(wr: &mut W, len: u32) -> Result<Marker, ValueWriteError>
    where W: Write
{
    if len < 32 {
        let marker = Marker::FixStr(len as u8);
        try!(write_fixval(wr, marker));
        Ok(marker)
    } else if len < 256 {
        try!(write_marker(wr, Marker::Str8));
        write_data_u8(wr, len as u8).and(Ok(Marker::Str8))
    } else if len < 65536 {
        try!(write_marker(wr, Marker::Str16));
        write_data_u16(wr, len as u16).and(Ok(Marker::Str16))
    } else {
        try!(write_marker(wr, Marker::Str32));
        write_data_u32(wr, len).and(Ok(Marker::Str32))
    }
}

/// Encodes and attempts to write the most efficient string implementation to the given `Write`.
///