forked from M-Labs/artiq
libdrtioaux: always inline read/write helpers.
This shrinks Packet::{read_from,write_to} by 1K.
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32522be413
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aa42a69849
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@ -6,17 +6,20 @@ use std::string::String;
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use byteorder::{ByteOrder, NetworkEndian};
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// FIXME: replace these with byteorder core io traits once those are in
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#[inline(always)]
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pub fn read_u8(reader: &mut Read) -> io::Result<u8> {
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let mut bytes = [0; 1];
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reader.read_exact(&mut bytes)?;
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Ok(bytes[0])
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}
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#[inline(always)]
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pub fn write_u8(writer: &mut Write, value: u8) -> io::Result<()> {
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let bytes = [value; 1];
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writer.write_all(&bytes)
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}
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#[inline(always)]
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pub fn read_bool(reader: &mut Read) -> io::Result<bool> {
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if read_u8(reader)? == 0 {
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Ok(false)
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@ -25,6 +28,7 @@ pub fn read_bool(reader: &mut Read) -> io::Result<bool> {
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}
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}
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#[inline(always)]
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pub fn write_bool(writer: &mut Write, value: bool) -> io::Result<()> {
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if value {
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write_u8(writer, 1)
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@ -33,42 +37,49 @@ pub fn write_bool(writer: &mut Write, value: bool) -> io::Result<()> {
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}
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}
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#[inline(always)]
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pub fn read_u16(reader: &mut Read) -> io::Result<u16> {
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let mut bytes = [0; 2];
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reader.read_exact(&mut bytes)?;
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Ok(NetworkEndian::read_u16(&bytes))
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}
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#[inline(always)]
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pub fn write_u16(writer: &mut Write, value: u16) -> io::Result<()> {
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let mut bytes = [0; 2];
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NetworkEndian::write_u16(&mut bytes, value);
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writer.write_all(&bytes)
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}
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#[inline(always)]
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pub fn read_u32(reader: &mut Read) -> io::Result<u32> {
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let mut bytes = [0; 4];
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reader.read_exact(&mut bytes)?;
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Ok(NetworkEndian::read_u32(&bytes))
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}
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#[inline(always)]
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pub fn write_u32(writer: &mut Write, value: u32) -> io::Result<()> {
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let mut bytes = [0; 4];
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NetworkEndian::write_u32(&mut bytes, value);
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writer.write_all(&bytes)
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}
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#[inline(always)]
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pub fn read_u64(reader: &mut Read) -> io::Result<u64> {
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let mut bytes = [0; 8];
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reader.read_exact(&mut bytes)?;
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Ok(NetworkEndian::read_u64(&bytes))
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}
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#[inline(always)]
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pub fn write_u64(writer: &mut Write, value: u64) -> io::Result<()> {
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let mut bytes = [0; 8];
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NetworkEndian::write_u64(&mut bytes, value);
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writer.write_all(&bytes)
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}
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#[inline(always)]
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pub fn read_bytes(reader: &mut Read) -> io::Result<Vec<u8>> {
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let length = read_u32(reader)?;
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let mut value = vec![0; length as usize];
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@ -76,17 +87,20 @@ pub fn read_bytes(reader: &mut Read) -> io::Result<Vec<u8>> {
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Ok(value)
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}
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#[inline(always)]
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pub fn write_bytes(writer: &mut Write, value: &[u8]) -> io::Result<()> {
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write_u32(writer, value.len() as u32)?;
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writer.write_all(value)
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}
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#[inline(always)]
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pub fn read_string(reader: &mut Read) -> io::Result<String> {
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let bytes = read_bytes(reader)?;
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String::from_utf8(bytes)
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.map_err(|_| io::Error::new(io::ErrorKind::InvalidData, "invalid UTF-8"))
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}
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#[inline(always)]
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pub fn write_string(writer: &mut Write, value: &str) -> io::Result<()> {
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write_bytes(writer, value.as_bytes())
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}
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