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Let the memory allocator zero initialize the memory

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This commit is contained in:
Paolo Barbolini 2022-07-23 10:05:36 +02:00
parent f649c79656
commit f06533f943
3 changed files with 3 additions and 5 deletions
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2
fake-tcp/Cargo.toml
View File

@ -15,7 +15,7 @@ packet oriented tunneling with minimum overhead.
benchmark = []
[dependencies]
bytes = "1"
bytes = "1.2"
pnet = "0.31"
tokio = { version = "1.14", features = ["full"] }
rand = { version = "0.8", features = ["small_rng"] }

3
fake-tcp/src/lib.rs
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@ -436,8 +436,7 @@ impl Stack {
let mut tuples: HashMap<AddrTuple, flume::Sender<Bytes>> = HashMap::new();
loop {
let mut buf = BytesMut::with_capacity(MAX_PACKET_LEN);
buf.resize(MAX_PACKET_LEN, 0);
let mut buf = BytesMut::zeroed(MAX_PACKET_LEN);
tokio::select! {
size = tun.recv(&mut buf) => {

3
fake-tcp/src/packet.rs
View File

@ -47,8 +47,7 @@ pub fn build_tcp_packet(
let tcp_header_len = TCP_HEADER_LEN + if wscale { 4 } else { 0 }; // nop + wscale
let tcp_total_len = tcp_header_len + payload.map_or(0, |payload| payload.len());
let total_len = ip_header_len + tcp_total_len;
let mut buf = BytesMut::with_capacity(total_len);
buf.resize(total_len, 0);
let mut buf = BytesMut::zeroed(total_len);
let mut ip_buf = buf.split_to(ip_header_len);
let mut tcp_buf = buf.split_to(tcp_total_len);