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allocate enough space

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This commit is contained in:
Nikolay Kim 2019-03-31 17:05:02 -07:00
parent ce8294740e
commit e4b3f79458
1 changed files with 4 additions and 3 deletions
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7
actix-http/src/ws/frame.rs
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@ -172,13 +172,14 @@ impl Parser {
};
if payload_len < 126 {
dst.reserve(p_len + 2 + if mask { 4 } else { 0 });
dst.put_slice(&[one, two | payload_len as u8]);
} else if payload_len <= 65_535 {
dst.reserve(p_len + 4);
dst.reserve(p_len + 4 + if mask { 4 } else { 0 });
dst.put_slice(&[one, two | 126]);
dst.put_u16_be(payload_len as u16);
} else {
dst.reserve(p_len + 10);
dst.reserve(p_len + 10 + if mask { 4 } else { 0 });
dst.put_slice(&[one, two | 127]);
dst.put_u64_be(payload_len as u64);
};
@ -186,7 +187,7 @@ impl Parser {
if mask {
let mask = rand::random::<u32>();
dst.put_u32_le(mask);
dst.extend_from_slice(payload.as_ref());
dst.put_slice(payload.as_ref());
let pos = dst.len() - payload_len;
apply_mask(&mut dst[pos..], mask);
} else {