tuxmain/w5100-rs
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chore: PR review comments

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Signed-off-by: Lachezar Lechev <elpiel93@gmail.com>
This commit is contained in:
Lachezar Lechev 2023-07-25 16:04:06 +03:00
commit a606fb0980
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GPG key ID: B2D641D6A2C8E742
1 changed files with 15 additions and 25 deletions
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38
src/udp.rs
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@ -117,13 +117,14 @@ impl UdpSocket {
// We set this variable to true when:
/// - We have the same Socket address already set
/// - We don't have any previous destination set
let is_same = self
.destination
.filter(|set_destination| set_destination == &remote)
.is_some();
///
// either no previous destination is set or a new one
if !is_same {
if self
.destination
.as_ref()
.map(|dest| dest != &remote)
.unwrap_or(true)
{
self.socket.set_destination_ip(bus, *remote.ip())?;
self.socket.set_destination_port(bus, remote.port())?;
@ -272,7 +273,9 @@ impl UdpSocket {
.reset_interrupt(bus, socketn::Interrupt::SendOk)?;
return Ok(());
} else if self
}
if self
.socket
.has_interrupt(bus, socketn::Interrupt::Timeout)?
{
@ -313,18 +316,9 @@ impl UdpSocket {
/// Note that the header is part of the internal RX buffer so `receive_buffer` can be smaller
/// in size by 8 bytes.
///
/// If the packet len is larger than the internal RX buffer, the data will be truncated.
/// If the packet len is larger than the provided RX buffer, the data will be truncated.
///
/// If [`Interrupt::Receive`] is not set, it will always return [`NbError::WouldBlock`].
///
///
/// Packet frame, as described in W5200 docs section 5.2.2.1:
///
/// ```text
/// |<-- read_pointer read_pointer + received_size -->|
/// | Destination IP Address | Destination Port | Byte Size of DATA | Actual DATA ... |
/// | --- 4 Bytes --- | --- 2 Bytes --- | --- 2 Bytes --- | .... |
/// ```
fn socket_receive<SpiBus: Bus>(
&mut self,
bus: &mut SpiBus,
@ -369,14 +363,10 @@ impl UdpSocket {
// we have to exclude the header's bytes when reading the data we put in the buffer.
let data_read_pointer = read_pointer.wrapping_add(8);
// if the packet is smaller than the maximum amount of bytes we can read
let read_length = if read_max_size > udp_header.len {
// read to either the max RX Buffer length or passed buffer length.
// just read to the end the packet
udp_header.len
} else {
// else read to either the max RX Buffer length or passed buffer length.
read_max_size
};
let read_length = read_max_size.max(udp_header.len);
/// the maximum amount of bytes we can read based on the smallest value of either:
/// - the RX size of the socket
/// - Buffer size