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refactor(h1): un-split record_header_indicies for ARM

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This commit is contained in:
Sean McArthur
2019-12-04 16:46:59 -08:00
parent a738d03fd3
commit aa66de4f27
1 changed files with 10 additions and 37 deletions
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47
src/proto/h1/role.rs
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@@ -948,44 +948,17 @@ fn record_header_indices(
) -> Result<(), crate::error::Parse> {
let bytes_ptr = bytes.as_ptr() as usize;
// FIXME: This should be a single plain `for` loop.
// Splitting it is a work-around for https://github.com/rust-lang/rust/issues/55105
macro_rules! split_loops_if {
(
cfg($($cfg: tt)+)
for $i: pat in ($iter: expr) {
$body1: block
$body2: block
}
) => {
for $i in $iter {
$body1
#[cfg(not($($cfg)+))] $body2
}
#[cfg($($cfg)+)]
for $i in $iter {
$body2
}
}
}
split_loops_if! {
cfg(all(target_arch = "arm", target_feature = "v7", target_feature = "neon"))
for (header, indices) in (headers.iter().zip(indices.iter_mut())) {
{
if header.name.len() >= (1 << 16) {
debug!("header name larger than 64kb: {:?}", header.name);
return Err(crate::error::Parse::TooLarge);
}
let name_start = header.name.as_ptr() as usize - bytes_ptr;
let name_end = name_start + header.name.len();
indices.name = (name_start, name_end);
}
{
let value_start = header.value.as_ptr() as usize - bytes_ptr;
let value_end = value_start + header.value.len();
indices.value = (value_start, value_end);
}
for (header, indices) in headers.iter().zip(indices.iter_mut()) {
if header.name.len() >= (1 << 16) {
debug!("header name larger than 64kb: {:?}", header.name);
return Err(crate::error::Parse::TooLarge);
}
let name_start = header.name.as_ptr() as usize - bytes_ptr;
let name_end = name_start + header.name.len();
indices.name = (name_start, name_end);
let value_start = header.value.as_ptr() as usize - bytes_ptr;
let value_end = value_start + header.value.len();
indices.value = (value_start, value_end);
}
Ok(())