M-Labs/artiq-zynq
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runtime/rpc: Support new TArray layout (ndarrays)

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This is a port of the respective commit in the main ARTIQ
repository.
This commit is contained in:
David Nadlinger 2020-08-09 00:00:58 +01:00
parent 7342736124
commit 9f898dd2b8
1 changed files with 50 additions and 8 deletions
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58
src/runtime/src/rpc.rs
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@ -72,7 +72,7 @@ async unsafe fn recv_value<F>(stream: &TcpStream, tag: Tag<'async_recursion>, da
}
Ok(())
}
Tag::List(it) | Tag::Array(it) => {
Tag::List(it) => {
#[repr(C)]
struct List { elements: *mut (), length: u32 };
consume_value!(List, |ptr| {
@ -88,6 +88,25 @@ async unsafe fn recv_value<F>(stream: &TcpStream, tag: Tag<'async_recursion>, da
Ok(())
})
}
Tag::Array(it, num_dims) => {
consume_value!(*mut (), |buffer| {
let mut total_len: u32 = 1;
for _ in 0..num_dims {
let len = proto_async::read_i32(stream).await? as u32;
total_len *= len;
consume_value!(u32, |ptr| *ptr = len )
}
let elt_tag = it.clone().next().expect("truncated tag");
*buffer = alloc(elt_tag.size() * total_len as usize).await;
let mut data = *buffer;
for _ in 0..total_len {
recv_value(stream, elt_tag, &mut data, alloc).await?
}
Ok(())
})
}
Tag::Range(it) => {
let tag = it.clone().next().expect("truncated tag");
recv_value(stream, tag, data, alloc).await?;
@ -154,7 +173,7 @@ unsafe fn send_value<W>(writer: &mut W, tag: Tag, data: &mut *const ())
}
Ok(())
}
Tag::List(it) | Tag::Array(it) => {
Tag::List(it) => {
#[repr(C)]
struct List { elements: *const (), length: u32 };
consume_value!(List, |ptr| {
@ -167,6 +186,25 @@ unsafe fn send_value<W>(writer: &mut W, tag: Tag, data: &mut *const ())
Ok(())
})
}
Tag::Array(it, num_dims) => {
writer.write_u8(num_dims)?;
consume_value!(*const(), |buffer| {
let elt_tag = it.clone().next().expect("truncated tag");
let mut total_len = 1;
for _ in 0..num_dims {
consume_value!(u32, |len| {
writer.write_u32(*len)?;
total_len *= *len;
})
}
let mut data = *buffer;
for _ in 0..total_len as usize {
send_value(writer, elt_tag, &mut data)?;
}
Ok(())
})
}
Tag::Range(it) => {
let tag = it.clone().next().expect("truncated tag");
send_value(writer, tag, data)?;
@ -245,7 +283,7 @@ mod tag {
ByteArray,
Tuple(TagIterator<'a>, u8),
List(TagIterator<'a>),
Array(TagIterator<'a>),
Array(TagIterator<'a>, u8),
Range(TagIterator<'a>),
Keyword(TagIterator<'a>),
Object
@ -264,7 +302,7 @@ mod tag {
Tag::ByteArray => b'A',
Tag::Tuple(_, _) => b't',
Tag::List(_) => b'l',
Tag::Array(_) => b'a',
Tag::Array(_, _) => b'a',
Tag::Range(_) => b'r',
Tag::Keyword(_) => b'k',
Tag::Object => b'O',
@ -291,7 +329,7 @@ mod tag {
size
}
Tag::List(_) => 8,
Tag::Array(_) => 8,
Tag::Array(_, num_dims) => 4 * (1 + num_dims as usize),
Tag::Range(it) => {
let tag = it.clone().next().expect("truncated tag");
tag.size() * 3
@ -334,7 +372,11 @@ mod tag {
Tag::Tuple(self.sub(count), count)
}
b'l' => Tag::List(self.sub(1)),
b'a' => Tag::Array(self.sub(1)),
b'a' => {
let count = self.data[0];
self.data = &self.data[1..];
Tag::Array(self.sub(1), count)
}
b'r' => Tag::Range(self.sub(1)),
b'k' => Tag::Keyword(self.sub(1)),
b'O' => Tag::Object,
@ -389,10 +431,10 @@ mod tag {
it.fmt(f)?;
write!(f, ")")?;
}
Tag::Array(it) => {
Tag::Array(it, num_dims) => {
write!(f, "Array(")?;
it.fmt(f)?;
write!(f, ")")?;
write!(f, ", {})", num_dims)?;
}
Tag::Range(it) => {
write!(f, "Range(")?;