Function rmp::decode::read_str_len
[−]
[src]
pub fn read_str_len<R: Read>(rd: &mut R) -> Result<u32, ValueReadError>
Attempts to read up to 9 bytes from the given reader and to decode them as a string u32
size
value.
According to the MessagePack specification, the string format family stores an byte array in 1, 2, 3, or 5 bytes of extra bytes in addition to the size of the byte array.
Errors
This function will return ValueReadError
on any I/O error while reading either the marker or
the data, except the EINTR, which is handled internally.
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.