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Some fixes

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This commit is contained in:
Dominik Werder
2021-04-30 19:44:44 +02:00
parent 40c27450c4
commit 168e532974
4 changed files with 110 additions and 37 deletions
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75
disk/src/frame/inmem.rs
View File

@@ -1,4 +1,4 @@
use crate::frame::makeframe::{INMEM_FRAME_HEAD, INMEM_FRAME_MAGIC};
use crate::frame::makeframe::{INMEM_FRAME_FOOT, INMEM_FRAME_HEAD, INMEM_FRAME_MAGIC};
use bytes::{BufMut, Bytes, BytesMut};
use err::Error;
use futures_core::Stream;
@@ -108,10 +108,9 @@ where
buf.len(),
wp
);
const HEAD: usize = INMEM_FRAME_HEAD;
let mut buf = buf;
let nb = wp;
if nb >= HEAD {
if nb >= INMEM_FRAME_HEAD {
let magic = u32::from_le_bytes(*arrayref::array_ref![buf, 0, 4]);
let encid = u32::from_le_bytes(*arrayref::array_ref![buf, 4, 4]);
let tyid = u32::from_le_bytes(*arrayref::array_ref![buf, 8, 4]);
@@ -129,22 +128,12 @@ where
}
trace!("tryparse len {}", len);
if len == 0 {
if nb != HEAD {
return (
Some(Some(Err(Error::with_msg(format!(
"InMemoryFrameAsyncReadStream tryparse unexpected amount left {}",
nb
))))),
buf,
wp,
);
}
info!("stop-frame with nb {}", nb);
(Some(None), buf, wp)
} else {
if len > 1024 * 32 {
warn!("InMemoryFrameAsyncReadStream big len received {}", len);
}
if len > 1024 * 1024 * 2 {
} else if len > 1024 * 1024 * 2 {
error!("InMemoryFrameAsyncReadStream too long len {}", len);
return (
Some(Some(Err(Error::with_msg(format!(
@@ -155,27 +144,55 @@ where
wp,
);
}
if len == 0 && len > 1024 * 512 {
return (
Some(Some(Err(Error::with_msg(format!(
"InMemoryFrameAsyncReadStream tryparse len {} self.inp_bytes_consumed {}",
len, self.inp_bytes_consumed
))))),
buf,
wp,
);
}
let nl = len as usize + HEAD;
let nl = len as usize + INMEM_FRAME_HEAD + INMEM_FRAME_FOOT;
if self.bufcap < nl {
// TODO count cases in production
let n = 2 * nl;
warn!("Adjust bufcap old {} new {}", self.bufcap, n);
self.bufcap = n;
}
if nb >= nl {
if nb < nl {
(None, buf, wp)
} else {
use bytes::Buf;
let mut h = crc32fast::Hasher::new();
h.update(&buf[..(nl - INMEM_FRAME_FOOT)]);
let frame_crc = h.finalize();
let mut h = crc32fast::Hasher::new();
h.update(&buf[INMEM_FRAME_HEAD..(nl - INMEM_FRAME_FOOT)]);
let payload_crc = h.finalize();
let frame_crc_ind =
u32::from_le_bytes(*arrayref::array_ref![buf, INMEM_FRAME_HEAD + len as usize, 4]);
let payload_crc_ind = u32::from_le_bytes(*arrayref::array_ref![buf, 16, 4]);
let payload_crc_match = payload_crc_ind == payload_crc;
let frame_crc_match = frame_crc_ind == frame_crc;
if !payload_crc_match || !frame_crc_match {
return (
Some(Some(Err(Error::with_msg(format!(
"InMemoryFrameAsyncReadStream tryparse crc mismatch {} {}",
payload_crc_match, frame_crc_match,
))))),
buf,
wp,
);
}
let mut buf3 = buf.split_to(nl);
buf3.advance(HEAD);
buf3.advance(INMEM_FRAME_HEAD);
buf3.truncate(len as usize);
let mut h = crc32fast::Hasher::new();
h.update(&buf3);
let payload_crc_2 = h.finalize();
let payload_crc_2_match = payload_crc_2 == payload_crc_ind;
if !payload_crc_2_match {
return (
Some(Some(Err(Error::with_msg(format!(
"InMemoryFrameAsyncReadStream tryparse crc mismatch {} {} {}",
payload_crc_match, frame_crc_match, payload_crc_2_match,
))))),
buf,
wp,
);
}
self.inp_bytes_consumed += nl as u64;
let ret = InMemoryFrame {
len,
@@ -184,8 +201,6 @@ where
buf: buf3.freeze(),
};
(Some(Some(Ok(ret))), buf, wp - nl)
} else {
(None, buf, wp)
}
}
} else {

19
disk/src/frame/makeframe.rs
View File

@@ -6,7 +6,8 @@ use bytes::{BufMut, BytesMut};
use err::Error;
use serde::{Deserialize, Serialize};
pub const INMEM_FRAME_HEAD: usize = 16;
pub const INMEM_FRAME_HEAD: usize = 20;
pub const INMEM_FRAME_FOOT: usize = 4;
pub const INMEM_FRAME_MAGIC: u32 = 0xc6c3b73d;
pub trait FrameType {
@@ -34,13 +35,21 @@ where
if enc.len() > u32::MAX as usize {
return Err(Error::with_msg(format!("too long payload {}", enc.len())));
}
let mut h = crc32fast::Hasher::new();
h.update(&enc);
let payload_crc = h.finalize();
let encid = 0x12121212;
let mut buf = BytesMut::with_capacity(enc.len() + INMEM_FRAME_HEAD);
buf.put_u32_le(INMEM_FRAME_MAGIC);
buf.put_u32_le(encid);
buf.put_u32_le(FT::FRAME_TYPE_ID);
buf.put_u32_le(enc.len() as u32);
buf.put_u32_le(payload_crc);
buf.put(enc.as_ref());
let mut h = crc32fast::Hasher::new();
h.update(&buf);
let frame_crc = h.finalize();
buf.put_u32_le(frame_crc);
Ok(buf)
}
Err(e) => Err(e)?,
@@ -48,12 +57,20 @@ where
}
pub fn make_term_frame() -> BytesMut {
let mut h = crc32fast::Hasher::new();
h.update(&[]);
let payload_crc = h.finalize();
let encid = 0x12121313;
let mut buf = BytesMut::with_capacity(INMEM_FRAME_HEAD);
buf.put_u32_le(INMEM_FRAME_MAGIC);
buf.put_u32_le(encid);
buf.put_u32_le(0x01);
buf.put_u32_le(0);
buf.put_u32_le(payload_crc);
let mut h = crc32fast::Hasher::new();
h.update(&buf);
let frame_crc = h.finalize();
buf.put_u32_le(frame_crc);
buf
}