1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48
use super::{read_marker, RmpRead, ValueReadError};
use crate::Marker;
/// Attempts to read exactly 5 bytes from the given reader and to decode them as `f32` value.
///
/// The first byte should be the marker and the others should represent the data itself.
///
/// # Errors
///
/// This function will return `ValueReadError` on any I/O error while reading either the marker or
/// the data.
///
/// It also returns `ValueReadError::TypeMismatch` if the actual type is not equal with the
/// expected one, indicating you with the actual type.
///
/// # Note
///
/// This function will silently retry on every EINTR received from the underlying `Read` until
/// successful read.
pub fn read_f32<R: RmpRead>(rd: &mut R) -> Result<f32, ValueReadError<R::Error>> {
match read_marker(rd)? {
Marker::F32 => Ok(rd.read_data_f32()?),
marker => Err(ValueReadError::TypeMismatch(marker)),
}
}
/// Attempts to read exactly 9 bytes from the given reader and to decode them as `f64` value.
///
/// The first byte should be the marker and the others should represent the data itself.
///
/// # Errors
///
/// This function will return `ValueReadError` on any I/O error while reading either the marker or
/// the data.
///
/// It also returns `ValueReadError::TypeMismatch` if the actual type is not equal with the
/// expected one, indicating you with the actual type.
///
/// # Note
///
/// This function will silently retry on every EINTR received from the underlying `Read` until
/// successful read.
pub fn read_f64<R: RmpRead>(rd: &mut R) -> Result<f64, ValueReadError<R::Error>> {
match read_marker(rd)? {
Marker::F64 => Ok(rd.read_data_f64()?),
marker => Err(ValueReadError::TypeMismatch(marker)),
}
}