Function readAtLeast [src]

Use this function to increase their_end.

Prototype

pub fn readAtLeast(d: *Decoder, stream: *std.Io.Reader, their_amt: usize) !void

Parameters

d: *Decoderstream: *std.Io.Readertheir_amt: usize

Source

  pub fn readAtLeast(d: *Decoder, stream: *std.Io.Reader, their_amt: usize) !void {
    assert(!d.disable_reads);
    const existing_amt = d.cap - d.idx;
    d.their_end = d.idx + their_amt;
    if (their_amt <= existing_amt) return;
    const request_amt = their_amt - existing_amt;
    const dest = d.buf[d.cap..];
    if (request_amt > dest.len) return error.TlsRecordOverflow;
    stream.readSlice(dest[0..request_amt]) catch |err| switch (err) {
        error.EndOfStream => return error.TlsConnectionTruncated,
        error.ReadFailed => return error.ReadFailed,
    };
    d.cap += request_amt;
}  