Fix memory leak about hyperblow

[rishadbaniya]

A debug build showed much more details :

[rishadbaniya]

All i found out was the loop where i used getMessage is causing a lot of allocations, a lot in a loop

[rishadbaniya]

Found out that in getMessage(), the KEEP_ALIVE message was getting constantly allocated on the heap as messages.push(msg)

[rishadbaniya]

Not clearing the buffer before returning Message::KEEP_ALIVE as causing Message::KEEP_ALIVE to be pushed continously,

    if bytes.len() == 0 {
        // If the buffer is empty then it means there is no message
        None
    } else if bytes.len() == 4 {
        // TODO : Check if the length is (0_u32) as well
        Some(Ok(Message::KEEP_ALIVE))
    } else {
        let pstr_len = bytes[0];

        if pstr_len == 19u8 {

clearing the buffer before returning Message::KEEP_ALIVE can fix this issue

[rishadbaniya]

f29ef8a fixes the memory allocation