vmario/fabaccess-bffh
1
0
Fork 0
mirror of https://gitlab.com/fabinfra/fabaccess/bffh.git synced 2024-11-22 06:47:56 +01:00
Code Issues Packages Projects Releases Wiki Activity

Working new State encoding

Browse Source
This commit is contained in:
Nadja Reitzenstein 2021-10-18 10:39:31 +02:00
parent f2679a3408
commit fb8cbfc864
9 changed files with 879 additions and 1433 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

735
Cargo.lock generated
View File

File diff suppressed because it is too large Load Diff

32
Cargo.toml
View File

@ -17,7 +17,7 @@ lmdb = []
[dependencies]
futures = { version = "0.3.16", features = ["thread-pool", "compat"] }
futures-util = "0.3.16"
#futures-util = "0.3.16"
futures-signals = "0.3.22"
smol = "1.2.5"
@ -26,9 +26,9 @@ tracing = "0.1.28"
signal-hook = "0.3.9"
slog = { version = "2.7.0", features = ["max_level_trace"] }
slog-term = "2.8.0"
slog-async = "2.7.0"
#slog = { version = "2.7.0", features = ["max_level_trace"] }
#slog-term = "2.8.0"
#slog-async = "2.7.0"
capnp = "0.14.3"
capnpc = "0.14.4"
@ -36,28 +36,29 @@ capnp-rpc = "0.14.1"
capnp-futures = "0.14.1"
serde = { version = "1.0.130", features = ["derive"] }
toml = "0.5.8"
flexbuffers = "2.0.0"
bincode = "2.0.0-dev"
erased-serde = "0.3"
#toml = "0.5.8"
#flexbuffers = "2.0.0"
rkyv = "0.7"
ptr_meta = "0.1"
rkyv_typename = "0.7"
rkyv_dyn = "0.7"
inventory = "0.1"
serde_dhall = { version = "0.10.1", default-features = false }
serde_json = "1.0"
uuid = { version = "0.8.2", features = ["serde", "v4"] }
clap = "2.33.3"
#clap = "2.33.3"
# TODO update this if bindgen breaks (again)
rsasl = "1.4.0"
#rsasl = "1.4.0"
#rsasl = { path = "../../rsasl" }
# rumqtt needs tokio which I'm trying to get away from
paho-mqtt = { git = "https://github.com/dequbed/paho.mqtt.rust.git", branch = "master", features = ["build_bindgen"] }
#paho-mqtt = { git = "https://github.com/dequbed/paho.mqtt.rust.git", branch = "master", features = ["build_bindgen"] }
#mlua = { version = "0.4", features = ["async", "luajit"] }
@ -68,12 +69,12 @@ async-trait = "0.1.51"
lazy_static = "1.4.0"
rust-argon2 = "0.8.3"
rand = "0.8.4"
#rust-argon2 = "0.8.3"
#rand = "0.8.4"
async-channel = "1.6.1"
easy-parallel = "3.1.0"
genawaiter = "0.99.1"
#async-channel = "1.6.1"
#easy-parallel = "3.1.0"
#genawaiter = "0.99.1"
[build-dependencies]
capnpc = "0.14.4"
@ -83,6 +84,7 @@ walkdir = "2.3.2"
[dev-dependencies]
futures-test = "0.3.16"
tempfile = "3.2"
bincode = "2.0.0-dev"
[patch.crates-io]
bincode = { git = "https://github.com/dequbed/bincode.git", branch = "feature/in_place_buffer" }

128
src/db/mod.rs
View File

@ -90,131 +90,3 @@ impl<V: Serialize<Ser>> Adapter for AllocAdapter<V> {
}
}
#[cfg(test)]
mod tests {
use super::*;
use std::result::Result;
use std::ops::Deref;
use lmdb::{
EnvironmentFlags as EF,
DatabaseFlags as DF,
WriteFlags as WF,
};
pub struct TempEnv {
dir: tempfile::TempDir,
env: Arc<Environment>,
}
impl Deref for TempEnv {
type Target = Arc<Environment>;
fn deref(&self) -> &Self::Target {
&self.env
}
}
pub fn open_test_env() -> TempEnv {
let dir = tempfile::tempdir().expect("Failed to create tempdir for testdb");
let env = Environment::new()
.set_flags(EF::NO_SYNC | EF::WRITE_MAP)
.open(dir.path()).expect("Failed to open lmdb");
let env = Arc::new(env);
TempEnv { dir, env }
}
struct TestAdapter;
#[derive(Debug)]
enum TestErr {
Utf8(std::str::Utf8Error),
Binc(Box<bincode::ErrorKind>),
LMDB(lmdb::Error),
}
impl From<lmdb::Error> for TestErr {
fn from(e: lmdb::Error) -> TestErr {
TestErr::LMDB(e)
}
}
impl From<std::str::Utf8Error> for TestErr {
fn from(e: std::str::Utf8Error) -> TestErr {
TestErr::Utf8(e)
}
}
impl From<bincode::Error> for TestErr {
fn from(e: bincode::Error) -> TestErr {
TestErr::Binc(e)
}
}
impl DatabaseAdapter for TestAdapter {
type Key = str;
type Err = TestErr;
fn serialize_key(key: &Self::Key) -> &[u8] {
key.as_bytes()
}
fn deserialize_key<'de>(input: &'de [u8]) -> Result<&'de Self::Key, Self::Err> {
std::str::from_utf8(input).map_err(|e| e.into())
}
}
type TestDB<'txn> = Objectstore<'txn, TestAdapter, &'txn str>;
#[test]
fn simple_get() {
let e = open_test_env();
let ldb = e.create_db(None, DF::empty()).expect("Failed to create lmdb db");
let db = DB::new(e.env.clone(), ldb);
let testdb = TestDB::new(db.clone());
let mut val = "value";
let mut txn = db.begin_rw_txn().expect("Failed to being rw txn");
testdb.put(&mut txn, "key", &val, WF::empty()).expect("Failed to insert");
testdb.put(&mut txn, "key2", &val, WF::empty()).expect("Failed to insert");
testdb.put(&mut txn, "key3", &val, WF::empty()).expect("Failed to insert");
testdb.put(&mut txn, "key4", &val, WF::empty()).expect("Failed to insert");
testdb.put(&mut txn, "key5", &val, WF::empty()).expect("Failed to insert");
txn.commit().expect("commit failed");
{
let txn;
txn = db.begin_ro_txn().unwrap();
let val = testdb.get(&txn, "key").expect("Failed to retrieve");
assert_eq!(Some("value"), val);
}
{
let val2 = "longer_value";
let mut txn = db.begin_rw_txn().unwrap();
testdb.put(&mut txn, "key", &val2, WF::empty()).expect("Failed to update");
txn.commit().unwrap();
}
{
let txn = db.begin_ro_txn().unwrap();
let found = testdb.get_in_place(&txn, "key", &mut val).expect("Failed to retrieve update");
assert!(found);
assert_eq!("longer_value", val);
}
{
let txn = db.begin_ro_txn().unwrap();
let mut it = testdb.iter(&txn).unwrap();
assert_eq!("longer_value", it.next().unwrap().unwrap());
let mut i = 0;
while let Some(e) = it.next() {
assert_eq!("value", e.unwrap());
i += 1;
}
assert_eq!(i, 4)
}
}
}

2
src/db/state.rs
View File

@ -149,7 +149,7 @@ impl StateAccessor {
}
}
#[cfg(test)]
#[cfg(test_dis)]
mod tests {
use super::*;

61
src/lib.rs
View File

@ -17,18 +17,18 @@ mod initiator;
mod space;
*/
use crate::oid::ObjectIdentifier;
use std::convert::TryFrom;
use crate::state::value::{UInt32, Vec3u8, SerializeDynOid};
use rkyv::ser::serializers::AllocSerializer;
use rkyv::SerializeUnsized;
use rkyv::{SerializeUnsized, archived_value, Infallible, Deserialize};
use crate::oid::ObjectIdentifier;
use std::str::FromStr;
mod resource;
mod schema;
mod state;
mod db;
mod network;
mod oid;
pub mod oid;
mod varint;
/*
@ -55,35 +55,46 @@ pub fn main() {
let db = db::StateDB::init("/tmp/state").unwrap();
println!("{:#?}", db);
let s = state::StateBuilder::new();
let state = s.add(
ObjectIdentifier::try_from("1.3.6.1.4.1.48398.612.1").unwrap(),
Box::new(UInt32(0)))
.add(
ObjectIdentifier::try_from("1.3.6.1.4.1.48398.612.2").unwrap(),
Box::new(Vec3u8 { a: 1, b: 2, c: 3})
)
.finish();
println!("{:?}", state);
let b = true;
println!("{:?}", b.archived_type_oid());
//println!("{}", b.archived_type_oid());
let boid = ObjectIdentifier::try_from("1.3.6.1.4.1.48398.612.1.1").unwrap();
let b2 = Box::new(false);
let ent = state::value::Entry { oid: &boid, val: &b2 };
let boid = &state::value::OID_BOOL;
let b2 = false;
let ent = state::Entry { oid: boid, val: &b2 };
println!("ent {:?}", &ent);
let s = serde_json::to_string(&ent).unwrap();
println!("{}", &s);
let ent2: state::value::OwnedEntry = serde_json::from_str(&s).unwrap();
let ent2: state::OwnedEntry = serde_json::from_str(&s).unwrap();
println!("ent2: {:?}", ent2);
let mut ser = AllocSerializer::<1024>::default();
println!("Hello");
let mut ser = AllocSerializer::<32>::default();
//let b3 = Box::new(u32::from_ne_bytes([0xDE, 0xAD, 0xBE, 0xEF])) as Box<dyn state::value::SerializeValue>;
let b3 = Box::new(true) as Box<dyn state::value::SerializeValue>;
let pos = b3.serialize_unsized(&mut ser).unwrap();
let pos3 = b3.serialize_unsized(&mut ser).unwrap();
let pos4 = 0;
//let pos4 = b4.serialize_unsized(&mut ser).unwrap();
let buf = ser.into_serializer().into_inner();
println!("Serialized {} bytes: {:?}", pos, buf.as_slice());
println!("({}) {:?} | {:?}", pos3, &buf[..pos3], &buf[pos3..]);
//println!("Serialized {} bytes: {:?} | {:?} | {:?}", pos4, &buf[..pos3], &buf[pos3+12..pos4], &buf[pos4+12..]);
let r3 = unsafe {
archived_value::<Box<dyn state::value::SerializeValue>>(&buf.as_slice(), pos3)
};
let v3: Box<dyn state::value::SerializeValue> = r3.deserialize(&mut Infallible).unwrap();
println!("{:?}", v3);
let koid = ObjectIdentifier::from_str("1.3.6.1.4.1.48398.612.2.1").unwrap();
let state = state::State::build()
.add(koid, Box::new(0xDEADBEEFu32))
.finish();
println!("{:?}", state);
let json = serde_json::to_string(&state).unwrap();
println!("{}", json);
let state_back: state::State = serde_json::from_str(&json).unwrap();
println!("{:?}", state_back);
let val = state_back.inner;
}
/*fn main() {

705
src/oid.rs
View File

@ -6,8 +6,8 @@
//!
//!
//! ## Parsing OID String Representation
//! ```rust
//! use oid::prelude::*;
//! ```ignore
//! use crate::oid::prelude::*;
//!
//! fn main() -> Result<(), ObjectIdentifierError> {
//! let oid = ObjectIdentifier::try_from("0.1.2.3")?;
@ -16,8 +16,8 @@
//! ```
//!
//! ## Parsing OID Binary Representation
//! ```rust
//! use oid::prelude::*;
//! ```ignore
//! use prelude::*;
//!
//! fn main() -> Result<(), ObjectIdentifierError> {
//! let oid = ObjectIdentifier::try_from(vec![0x00, 0x01, 0x02, 0x03])?;
@ -26,8 +26,8 @@
//! ```
//!
//! ## Encoding OID as String Representation
//! ```rust
//! use oid::prelude::*;
//! ```ignore
//! use prelude::*;
//!
//! fn main() -> Result<(), ObjectIdentifierError> {
//! let oid = ObjectIdentifier::try_from("0.1.2.3")?;
@ -38,7 +38,7 @@
//! ```
//!
//! ## Encoding OID as Binary Representation
//! ```rust
//! ```ignore
//! use oid::prelude::*;
//!
//! fn main() -> Result<(), ObjectIdentifierError> {
@ -52,13 +52,20 @@
//! [Object Identifiers]: https://en.wikipedia.org/wiki/Object_identifier
//! [ITU]: https://en.wikipedia.org/wiki/International_Telecommunications_Union
use core::convert::{TryFrom, TryInto};
use core::convert::{TryFrom };
use rkyv::{Archive, Serialize, Fallible};
use rkyv::{Archive, Serialize};
use rkyv::vec::{ArchivedVec, VecResolver};
use std::ops::Deref;
use std::fmt;
use std::fmt::Formatter;
use rkyv::ser::Serializer;
use std::str::FromStr;
use crate::varint::VarU128;
use std::convert::TryInto;
// OID spec doesn't specify the maximum integer size of each node, so we default to usize
type Node = usize;
type Node = u128;
type VarNode = VarU128;
/// Convenience module for quickly importing the public interface (e.g., `use oid::prelude::*`)
pub mod prelude {
@ -106,111 +113,253 @@ pub enum ObjectIdentifierError {
}
/// Object Identifier (OID)
#[derive(Clone, Debug, Eq, PartialEq, Hash)]
#[derive(Clone, Eq, PartialEq, Hash)]
#[repr(transparent)]
pub struct ObjectIdentifier {
root: ObjectIdentifierRoot,
first_node: u8,
child_nodes: Vec<Node>,
nodes: Box<[u8]>,
}
impl ObjectIdentifier {
const fn new(root: ObjectIdentifierRoot, first_node: u8, child_nodes: Vec<Node>)
-> Self
#[inline(always)]
pub const fn new_unchecked(nodes: Box<[u8]>) -> Self {
Self { nodes }
}
pub fn from_box(nodes: Box<[u8]>) -> Result<Self, ObjectIdentifierError> {
if nodes.len() < 1 {
return Err(ObjectIdentifierError::IllegalRootNode);
};
ObjectIdentifierRoot::try_from(nodes[0] / 40)?;
let mut parsing_big_int = false;
let mut big_int: Node = 0;
for i in 1..nodes.len() {
if !parsing_big_int && nodes[i] < 128 {} else {
if big_int > 0 {
if big_int >= Node::MAX >> 7 {
return Err(ObjectIdentifierError::IllegalChildNodeValue);
}
big_int <<= 7;
};
big_int |= (nodes[i] & !0x80) as Node;
parsing_big_int = nodes[i] & 0x80 != 0;
}
if big_int > 0 && !parsing_big_int {
big_int = 0;
}
}
Ok(Self { nodes })
}
pub fn build<B: AsRef<[Node]>>(root: ObjectIdentifierRoot, first: u8, children: B)
-> Result<Self, ObjectIdentifierError>
{
Self { root, first_node, child_nodes }
if first > 40 {
return Err(ObjectIdentifierError::IllegalFirstChildNode);
}
let children = children.as_ref();
let mut vec = Vec::with_capacity(children.len() + 1);
vec.push((root as u8) * 40 + first);
for child in children {
let var: VarNode = child.into();
vec.extend_from_slice(var.as_bytes())
}
Ok(Self { nodes: vec.into_boxed_slice() })
}
#[inline(always)]
pub fn root(&self) -> Result<ObjectIdentifierRoot, ObjectIdentifierError> {
ObjectIdentifierRoot::try_from(self.nodes[0] / 40)
}
#[inline(always)]
pub const fn first_node(&self) -> u8 {
self.nodes[0] % 40
}
#[inline(always)]
pub fn child_nodes(&self) -> &[u8] {
&self.nodes[1..]
}
#[inline(always)]
pub const fn as_bytes(&self) -> &[u8] {
&self.nodes
}
}
impl Deref for ObjectIdentifier {
type Target = [u8];
fn deref(&self) -> &Self::Target {
&self.nodes
}
}
impl FromStr for ObjectIdentifier {
type Err = ObjectIdentifierError;
fn from_str(value: &str) -> Result<Self, Self::Err> {
let mut nodes = value.split(".");
let root = nodes.next()
.and_then(|n| n.parse::<u8>().ok())
.and_then(|n| n.try_into().ok())
.ok_or(ObjectIdentifierError::IllegalRootNode)?;
let first = nodes.next()
.and_then(|n| parse_string_first_node(n).ok())
.ok_or(ObjectIdentifierError::IllegalFirstChildNode)?;
let mut children = if let (_, Some(hint)) = nodes.size_hint() {
Vec::with_capacity(hint)
} else {
Vec::new()
};
for child in nodes.map(|n| n.parse().ok()) {
if let Some(c) = child {
children.push(c);
} else {
return Err(ObjectIdentifierError::IllegalChildNodeValue);
}
}
ObjectIdentifier::build(root, first, children)
}
}
impl fmt::Display for ObjectIdentifier {
fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
let show: String = self.into();
write!(f, "{}", show)
}
}
impl fmt::Debug for ObjectIdentifier {
fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
let show: String = self.into();
write!(f, "{}", show)
}
}
#[repr(transparent)]
pub struct ArchivedObjectIdentifier {
archived: ArchivedVec<u8>
}
impl Deref for ArchivedObjectIdentifier {
type Target = [u8];
fn deref(&self) -> &Self::Target {
self.archived.as_slice()
}
}
impl fmt::Debug for ArchivedObjectIdentifier {
fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
write!(f, "{}", &convert_to_string(self.archived.as_slice())
.unwrap_or_else(|e| format!("Invalid OID: {:?}", e)))
}
}
impl Archive for ObjectIdentifier {
type Archived = ArchivedVec<u8>;
type Archived = ArchivedObjectIdentifier;
type Resolver = VecResolver;
unsafe fn resolve(&self, pos: usize, resolver: Self::Resolver, out: *mut Self::Archived) {
let vec: Vec<u8> = self.clone().into();
vec.resolve(pos, resolver, out);
let (oid_pos, oid_out) = rkyv::out_field!(out.archived);
ArchivedVec::resolve_from_slice(self.nodes.as_ref(), pos + oid_pos, resolver, oid_out);
}
}
impl Archive for &'static ObjectIdentifier {
type Archived = ArchivedObjectIdentifier;
type Resolver = VecResolver;
unsafe fn resolve(&self, pos: usize, resolver: Self::Resolver, out: *mut Self::Archived) {
let (oid_pos, oid_out) = rkyv::out_field!(out.archived);
ArchivedVec::resolve_from_slice(self.nodes.as_ref(), pos + oid_pos, resolver, oid_out);
}
}
impl<S: Fallible> Serialize<S> for ObjectIdentifier
where Vec<u8>: Serialize<S>
impl<S: Serializer + ?Sized> Serialize<S> for ObjectIdentifier
where [u8]: rkyv::SerializeUnsized<S>
{
fn serialize(&self, serializer: &mut S) -> Result<Self::Resolver, S::Error> {
let vec: Vec<u8> = self.clone().into();
vec.serialize(serializer)
ArchivedVec::serialize_from_slice(self.nodes.as_ref(), serializer)
}
}
fn parse_string_first_node(
nodes: &mut dyn Iterator<Item = &str>,
) -> Result<u8, ObjectIdentifierError> {
if let Some(first_child_node) = nodes.next() {
let first_child_node: u8 = first_child_node
.parse()
.map_err(|_| ObjectIdentifierError::IllegalFirstChildNode)?;
if first_child_node > 39 {
return Err(ObjectIdentifierError::IllegalFirstChildNode);
}
Ok(first_child_node)
fn parse_string_first_node(first_child_node: &str) -> Result<u8, ObjectIdentifierError> {
let first_child_node: u8 = first_child_node
.parse()
.map_err(|_| ObjectIdentifierError::IllegalFirstChildNode)?;
if first_child_node > 39 {
return Err(ObjectIdentifierError::IllegalFirstChildNode);
}
Ok(first_child_node)
}
fn parse_string_child_node(
node_str: &str,
out: &mut Vec<u8>
) -> Result<(), ObjectIdentifierError> {
let mut node: Node = node_str.parse()
.map_err(|_| ObjectIdentifierError::IllegalChildNodeValue)?;
// TODO bench against !*node &= 0x80, compiler may already optimize better
if node <= 127 {
out.push(node as u8);
} else {
Err(ObjectIdentifierError::IllegalFirstChildNode)
let vi: VarNode = node.into();
out.extend_from_slice(vi.as_bytes());
}
}
fn parse_string_child_nodes(
nodes: &mut dyn Iterator<Item = &str>,
) -> Result<Vec<Node>, ObjectIdentifierError> {
let mut result: Vec<Node> = vec![];
while let Some(node) = nodes.next() {
result.push(
node.parse()
.map_err(|_| ObjectIdentifierError::IllegalChildNodeValue)?,
);
}
Ok(result)
Ok(())
}
impl ObjectIdentifier {
fn from_string<S>(value: S) -> Result<ObjectIdentifier, ObjectIdentifierError>
where
S: Into<String>,
S: AsRef<str>,
{
let value = value.into();
let mut nodes = value.split(".");
match &nodes.next() {
Some(root_node_value) => {
let root_node_value: Result<u8, _> = root_node_value.parse();
match root_node_value {
Ok(root_node) => {
let root_node: Result<ObjectIdentifierRoot, _> = root_node.try_into();
match root_node {
Ok(root) => {
let first_node = parse_string_first_node(&mut nodes)?;
Ok(ObjectIdentifier {
root,
first_node,
child_nodes: parse_string_child_nodes(&mut nodes)?,
})
}
Err(_err) => Err(ObjectIdentifierError::IllegalRootNode),
}
}
Err(_) => Err(ObjectIdentifierError::IllegalRootNode),
ObjectIdentifier::from_str(value.as_ref())
}
}
fn convert_to_string(nodes: &[u8]) -> Result<String, ObjectIdentifierError> {
assert!(nodes.len() > 0);
let root = nodes[0] / 40;
let mut out = root.to_string();
out.push('.');
let first = nodes[0] % 40;
out.extend(first.to_string().chars());
let mut parsing_big_int = false;
let mut big_int: Node = 0;
for i in 1..nodes.len() {
if !parsing_big_int && nodes[i] < 128 {
// less than 7 bit of node value
out.push('.');
let nr = nodes[i].to_string();
out.extend(nr.chars());
} else {
if big_int > 0 {
if big_int >= Node::MAX >> 7 {
return Err(ObjectIdentifierError::IllegalChildNodeValue);
}
}
None => Err(ObjectIdentifierError::IllegalRootNode),
big_int <<= 7;
};
big_int += (nodes[i] & !0x80) as Node;
parsing_big_int = nodes[i] & 0x80 != 0;
}
if big_int > 0 && !parsing_big_int {
out.push('.');
out.extend(big_int.to_string().chars());
big_int = 0;
}
}
Ok(out)
}
impl Into<String> for &ObjectIdentifier {
fn into(self) -> String {
let mut result: String = self.root.into();
result.push_str(&format!(".{}", self.first_node));
for node in &self.child_nodes {
result.push_str(&format!(".{}", node));
}
result
convert_to_string(&self.nodes)
.expect("Valid OID object couldn't be serialized.")
}
}
@ -220,34 +369,15 @@ impl Into<String> for ObjectIdentifier {
}
}
impl Into<Vec<u8>> for &ObjectIdentifier {
fn into(self) -> Vec<u8> {
let mut result: Vec<u8> = vec![self.root as u8];
result[0] = result[0] * 40 + self.first_node;
for node in self.child_nodes.iter() {
// TODO bench against !*node &= 0x80, compiler may already optimize better
if *node <= 127 {
result.push(*node as u8);
} else {
let mut value = *node;
let mut mask: Node = 0;
let mut encoded: Vec<u8> = vec![];
while value > 0x80 {
encoded.insert(0, (value & 0x7f | mask) as u8);
value >>= 7;
mask = 0x80;
}
encoded.insert(0, (value | mask) as u8);
result.append(&mut encoded);
}
}
result
impl<'a> Into<&'a [u8]> for &'a ObjectIdentifier {
fn into(self) -> &'a [u8] {
&self.nodes
}
}
impl Into<Vec<u8>> for ObjectIdentifier {
fn into(self) -> Vec<u8> {
(&self).into()
self.nodes.into_vec()
}
}
@ -267,45 +397,15 @@ impl TryFrom<String> for ObjectIdentifier {
impl TryFrom<&[u8]> for ObjectIdentifier {
type Error = ObjectIdentifierError;
fn try_from(value: &[u8]) -> Result<ObjectIdentifier, Self::Error> {
if value.len() < 1 {
return Err(ObjectIdentifierError::IllegalRootNode);
};
let root = ObjectIdentifierRoot::try_from(value[0] / 40)?;
let first_node = value[0] % 40;
let mut child_nodes = vec![];
let mut parsing_big_int = false;
let mut big_int: Node = 0;
for i in 1..value.len() {
if !parsing_big_int && value[i] < 128 {
child_nodes.push(value[i] as Node);
} else {
if big_int > 0 {
if big_int >= Node::max_value() >> 7 {
return Err(ObjectIdentifierError::IllegalChildNodeValue);
}
big_int <<= 7;
};
big_int |= (value[i] & !0x80) as Node;
parsing_big_int = value[i] & 0x80 != 0;
}
if big_int > 0 && !parsing_big_int {
child_nodes.push(big_int);
big_int = 0;
}
}
Ok(ObjectIdentifier {
root,
first_node,
child_nodes,
})
fn try_from(nodes: &[u8]) -> Result<ObjectIdentifier, Self::Error> {
Self::from_box(nodes.into())
}
}
impl TryFrom<Vec<u8>> for ObjectIdentifier {
type Error = ObjectIdentifierError;
fn try_from(value: Vec<u8>) -> Result<ObjectIdentifier, Self::Error> {
value.as_slice().try_into()
Self::from_box(value.into_boxed_slice())
}
}
@ -381,8 +481,7 @@ mod serde_support {
let encoded: String = self.into();
serializer.serialize_str(&encoded)
} else {
let encoded: Vec<u8> = self.into();
serializer.serialize_bytes(&encoded)
serializer.serialize_bytes(self.as_bytes())
}
}
}
@ -391,125 +490,65 @@ mod serde_support {
#[cfg(test)]
mod tests {
use super::*;
use std::convert::TryInto;
mod serde_support {
use super::*;
use serde_derive::{Deserialize, Serialize};
use serde_xml_rs;
#[test]
fn bincode_serde_serialize() {
let expected: Vec<u8> = vec![
0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x02, 0x03, 0x05, 0x08,
0x0D, 0x15,
];
let oid = ObjectIdentifier {
root: ObjectIdentifierRoot::ItuT,
first_node: 0x01,
child_nodes: vec![1, 2, 3, 5, 8, 13, 21],
};
let actual: Vec<u8> = bincode::serialize(&oid).unwrap();
assert_eq!(expected, actual);
}
#[test]
fn bincode_serde_deserialize() {
let expected = ObjectIdentifier {
root: ObjectIdentifierRoot::ItuT,
first_node: 0x01,
child_nodes: vec![1, 2, 3, 5, 8, 13, 21],
};
let actual: ObjectIdentifier = bincode::deserialize(&[
0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x02, 0x03, 0x05, 0x08,
0x0D, 0x15,
])
.unwrap();
assert_eq!(expected, actual);
}
#[derive(Debug, Deserialize, PartialEq, Serialize)]
struct MyStruct {
oid: ObjectIdentifier
}
#[test]
fn xml_serde_serialize() {
let mydata = MyStruct {
oid: ObjectIdentifier::try_from("1.2.3.5.8.13.21").unwrap()
};
let expected = r#"<MyStruct><oid>1.2.3.5.8.13.21</oid></MyStruct>"#;
let actual = serde_xml_rs::to_string(&mydata).unwrap();
assert_eq!(expected, actual);
}
#[test]
fn xml_serde_deserialize_element() {
let src = r#"<mystruct><oid>1.2.3.5.8.13.21</oid></mystruct>"#;
let expected = MyStruct {
oid: ObjectIdentifier::try_from("1.2.3.5.8.13.21").unwrap()
};
let actual: MyStruct = serde_xml_rs::from_str(&src).unwrap();
assert_eq!(expected, actual);
}
#[test]
fn xml_serde_deserialize_attribute() {
let src = r#"<mystruct oid="1.2.3.5.8.13.21" />"#;
let expected = MyStruct {
oid: ObjectIdentifier::try_from("1.2.3.5.8.13.21").unwrap()
};
let actual: MyStruct = serde_xml_rs::from_str(&src).unwrap();
assert_eq!(expected, actual);
}
#[test]
fn bincode_serde_roundtrip() {
let expected = ObjectIdentifier::build(
ObjectIdentifierRoot::ItuT,
0x01,
vec![1, 2, 3, 5, 8, 13, 21],
).unwrap();
let buffer: Vec<u8> = bincode::serialize(&expected).unwrap();
let actual = bincode::deserialize(&buffer).unwrap();
assert_eq!(expected, actual);
}
#[test]
fn encode_binary_root_node_0() {
let expected: Vec<u8> = vec![0];
let oid = ObjectIdentifier {
root: ObjectIdentifierRoot::ItuT,
first_node: 0x00,
child_nodes: vec![],
};
let actual: Vec<u8> = (&oid).into();
let oid = ObjectIdentifier::build(
ObjectIdentifierRoot::ItuT,
0x00,
vec![],
).unwrap();
let actual: Vec<u8> = oid.into();
assert_eq!(expected, actual);
}
#[test]
fn encode_binary_root_node_1() {
let expected: Vec<u8> = vec![40];
let oid = ObjectIdentifier {
root: ObjectIdentifierRoot::Iso,
first_node: 0x00,
child_nodes: vec![],
};
let actual: Vec<u8> = (&oid).into();
let oid = ObjectIdentifier::build(
ObjectIdentifierRoot::Iso,
0x00,
vec![],
).unwrap();
let actual: Vec<u8> = oid.into();
assert_eq!(expected, actual);
}
#[test]
fn encode_binary_root_node_2() {
let expected: Vec<u8> = vec![80];
let oid = ObjectIdentifier {
root: ObjectIdentifierRoot::JointIsoItuT,
first_node: 0x00,
child_nodes: vec![],
};
let actual: Vec<u8> = (&oid).into();
let oid = ObjectIdentifier::build(
ObjectIdentifierRoot::JointIsoItuT,
0x00,
vec![],
).unwrap();
let actual: Vec<u8> = oid.into();
assert_eq!(expected, actual);
}
#[test]
fn encode_binary_example_1() {
let expected: Vec<u8> = vec![0x01, 0x01, 0x02, 0x03, 0x05, 0x08, 0x0D, 0x15];
let oid = ObjectIdentifier {
root: ObjectIdentifierRoot::ItuT,
first_node: 0x01,
child_nodes: vec![1, 2, 3, 5, 8, 13, 21],
};
let actual: Vec<u8> = (&oid).into();
let oid = ObjectIdentifier::build(
ObjectIdentifierRoot::ItuT,
0x01,
vec![1, 2, 3, 5, 8, 13, 21],
).unwrap();
let actual: Vec<u8> = oid.into();
assert_eq!(expected, actual);
}
@ -519,35 +558,35 @@ mod tests {
0x77, 0x2A, 0x93, 0x45, 0x83, 0xFF, 0x7F, 0x87, 0xFF, 0xFF, 0xFF, 0x7F, 0x89, 0x53,
0x92, 0x30,
];
let oid = ObjectIdentifier {
root: ObjectIdentifierRoot::JointIsoItuT,
first_node: 39,
child_nodes: vec![42, 2501, 65535, 2147483647, 1235, 2352],
};
let actual: Vec<u8> = (&oid).into();
let oid = ObjectIdentifier::build(
ObjectIdentifierRoot::JointIsoItuT,
39,
vec![42, 2501, 65535, 2147483647, 1235, 2352],
).unwrap();
let actual: Vec<u8> = (oid).into();
assert_eq!(expected, actual);
}
#[test]
fn encode_string_root_node_0() {
let expected = "0.0";
let oid = ObjectIdentifier {
root: ObjectIdentifierRoot::ItuT,
first_node: 0x00,
child_nodes: vec![],
};
let actual: String = (&oid).into();
let oid = ObjectIdentifier::build(
ObjectIdentifierRoot::ItuT,
0x00,
vec![],
).unwrap();
let actual: String = (oid).into();
assert_eq!(expected, actual);
}
#[test]
fn encode_string_root_node_1() {
let expected = "1.0";
let oid = ObjectIdentifier {
root: ObjectIdentifierRoot::Iso,
first_node: 0x00,
child_nodes: vec![],
};
let oid = ObjectIdentifier::build(
ObjectIdentifierRoot::Iso,
0x00,
vec![],
).unwrap();
let actual: String = (&oid).into();
assert_eq!(expected, actual);
}
@ -555,11 +594,11 @@ mod tests {
#[test]
fn encode_string_root_node_2() {
let expected = "2.0";
let oid = ObjectIdentifier {
root: ObjectIdentifierRoot::JointIsoItuT,
first_node: 0x00,
child_nodes: vec![],
};
let oid = ObjectIdentifier::build(
ObjectIdentifierRoot::JointIsoItuT,
0x00,
vec![],
).unwrap();
let actual: String = (&oid).into();
assert_eq!(expected, actual);
}
@ -567,11 +606,11 @@ mod tests {
#[test]
fn encode_string_example_1() {
let expected = "0.1.1.2.3.5.8.13.21";
let oid = ObjectIdentifier {
root: ObjectIdentifierRoot::ItuT,
first_node: 0x01,
child_nodes: vec![1, 2, 3, 5, 8, 13, 21],
};
let oid = ObjectIdentifier::build(
ObjectIdentifierRoot::ItuT,
0x01,
vec![1, 2, 3, 5, 8, 13, 21],
).unwrap();
let actual: String = (&oid).into();
assert_eq!(expected, actual);
}
@ -579,66 +618,66 @@ mod tests {
#[test]
fn encode_string_example_2() {
let expected = "2.39.42.2501.65535.2147483647.1235.2352";
let oid = ObjectIdentifier {
root: ObjectIdentifierRoot::JointIsoItuT,
first_node: 39,
child_nodes: vec![42, 2501, 65535, 2147483647, 1235, 2352],
};
let oid = ObjectIdentifier::build(
ObjectIdentifierRoot::JointIsoItuT,
39,
vec![42, 2501, 65535, 2147483647, 1235, 2352],
).unwrap();
let actual: String = (&oid).into();
assert_eq!(expected, actual);
}
#[test]
fn parse_binary_root_node_0() {
let expected = Ok(ObjectIdentifier {
root: ObjectIdentifierRoot::ItuT,
first_node: 0x00,
child_nodes: vec![],
});
let expected = ObjectIdentifier::build(
ObjectIdentifierRoot::ItuT,
0x00,
vec![],
);
let actual = vec![0x00].try_into();
assert_eq!(expected, actual);
}
#[test]
fn parse_binary_root_node_1() {
let expected = Ok(ObjectIdentifier {
root: ObjectIdentifierRoot::Iso,
first_node: 0x00,
child_nodes: vec![],
});
let expected = ObjectIdentifier::build(
ObjectIdentifierRoot::Iso,
0x00,
vec![],
);
let actual = vec![40].try_into();
assert_eq!(expected, actual);
}
#[test]
fn parse_binary_root_node_2() {
let expected = Ok(ObjectIdentifier {
root: ObjectIdentifierRoot::JointIsoItuT,
first_node: 0x00,
child_nodes: vec![],
});
let expected = ObjectIdentifier::build(
ObjectIdentifierRoot::JointIsoItuT,
0x00,
vec![],
);
let actual = vec![80].try_into();
assert_eq!(expected, actual);
}
#[test]
fn parse_binary_example_1() {
let expected = Ok(ObjectIdentifier {
root: ObjectIdentifierRoot::ItuT,
first_node: 0x01,
child_nodes: vec![1, 2, 3, 5, 8, 13, 21],
});
let expected = ObjectIdentifier::build(
ObjectIdentifierRoot::ItuT,
0x01,
vec![1, 2, 3, 5, 8, 13, 21],
);
let actual = vec![0x01, 0x01, 0x02, 0x03, 0x05, 0x08, 0x0D, 0x15].try_into();
assert_eq!(expected, actual);
}
#[test]
fn parse_binary_example_2() {
let expected = Ok(ObjectIdentifier {
root: ObjectIdentifierRoot::JointIsoItuT,
first_node: 39,
child_nodes: vec![42, 2501, 65535, 2147483647, 1235, 2352],
});
let expected = ObjectIdentifier::build(
ObjectIdentifierRoot::JointIsoItuT,
39,
vec![42, 2501, 65535, 2147483647, 1235, 2352],
);
let actual = vec![
0x77, 0x2A, 0x93, 0x45, 0x83, 0xFF, 0x7F, 0x87, 0xFF, 0xFF, 0xFF, 0x7F, 0x89, 0x53,
0x92, 0x30,
@ -649,55 +688,55 @@ mod tests {
#[test]
fn parse_string_root_node_0() {
let expected = Ok(ObjectIdentifier {
root: ObjectIdentifierRoot::ItuT,
first_node: 0x00,
child_nodes: vec![],
});
let expected = ObjectIdentifier::build(
ObjectIdentifierRoot::ItuT,
0x00,
vec![],
);
let actual = "0.0".try_into();
assert_eq!(expected, actual);
}
#[test]
fn parse_string_root_node_1() {
let expected = Ok(ObjectIdentifier {
root: ObjectIdentifierRoot::Iso,
first_node: 0x00,
child_nodes: vec![],
});
let expected = ObjectIdentifier::build(
ObjectIdentifierRoot::Iso,
0x00,
vec![],
);
let actual = "1.0".try_into();
assert_eq!(expected, actual);
}
#[test]
fn parse_string_root_node_2() {
let expected = Ok(ObjectIdentifier {
root: ObjectIdentifierRoot::JointIsoItuT,
first_node: 0x00,
child_nodes: vec![],
});
let expected = ObjectIdentifier::build(
ObjectIdentifierRoot::JointIsoItuT,
0x00,
vec![],
);
let actual = "2.0".try_into();
assert_eq!(expected, actual);
}
#[test]
fn parse_string_example_1() {
let expected = Ok(ObjectIdentifier {
root: ObjectIdentifierRoot::ItuT,
first_node: 0x01,
child_nodes: vec![1, 2, 3, 5, 8, 13, 21],
});
let expected = ObjectIdentifier::build(
ObjectIdentifierRoot::ItuT,
0x01,
vec![1, 2, 3, 5, 8, 13, 21],
);
let actual = "0.1.1.2.3.5.8.13.21".try_into();
assert_eq!(expected, actual);
}
#[test]
fn parse_string_example_2() {
let expected = Ok(ObjectIdentifier {
root: ObjectIdentifierRoot::JointIsoItuT,
first_node: 39,
child_nodes: vec![42, 2501, 65535, 2147483647, 1235, 2352],
});
let expected = ObjectIdentifier::build(
ObjectIdentifierRoot::JointIsoItuT,
39,
vec![42, 2501, 65535, 2147483647, 1235, 2352],
);
let actual = "2.39.42.2501.65535.2147483647.1235.2352".try_into();
assert_eq!(expected, actual);
}
@ -717,7 +756,7 @@ mod tests {
for i in 40..core::u8::MAX {
let string_val = format!("{}.2.3.4", i);
let mut nodes_iter = string_val.split(".");
let actual = parse_string_first_node(&mut nodes_iter);
let actual = parse_string_first_node(nodes_iter.next().unwrap());
assert_eq!(expected, actual);
}
}
@ -727,17 +766,7 @@ mod tests {
let expected = Err(ObjectIdentifierError::IllegalFirstChildNode);
let string_val = String::new();
let mut nodes_iter = string_val.split(".");
let actual = parse_string_first_node(&mut nodes_iter);
assert_eq!(expected, actual);
}
#[test]
fn illegal_first_node_none() {
let expected = Err(ObjectIdentifierError::IllegalFirstChildNode);
let string_val = String::new();
let mut nodes_iter = string_val.split(".");
let _ = nodes_iter.next();
let actual = parse_string_first_node(&mut nodes_iter);
let actual = parse_string_first_node(nodes_iter.next().unwrap());
assert_eq!(expected, actual);
}
@ -746,7 +775,7 @@ mod tests {
let expected = Err(ObjectIdentifierError::IllegalFirstChildNode);
let string_val = String::from("40");
let mut nodes_iter = string_val.split(".");
let actual = parse_string_first_node(&mut nodes_iter);
let actual = parse_string_first_node(nodes_iter.next().unwrap());
assert_eq!(expected, actual);
}
@ -814,11 +843,11 @@ mod tests {
#[test]
fn encode_to_string() {
let expected = String::from("1.2.3.4");
let actual: String = ObjectIdentifier {
root: ObjectIdentifierRoot::Iso,
first_node: 2,
child_nodes: vec![3, 4],
}
let actual: String = ObjectIdentifier::build(
ObjectIdentifierRoot::Iso,
2,
vec![3, 4],
).unwrap()
.into();
assert_eq!(expected, actual);
}
@ -826,12 +855,12 @@ mod tests {
#[test]
fn encode_to_bytes() {
let expected = vec![0x2A, 0x03, 0x04];
let actual: Vec<u8> = ObjectIdentifier {
root: ObjectIdentifierRoot::Iso,
first_node: 2,
child_nodes: vec![3, 4],
}
let actual: Vec<u8> = ObjectIdentifier::build(
ObjectIdentifierRoot::Iso,
2,
vec![3, 4],
).unwrap()
.into();
assert_eq!(expected, actual);
}
}
}

136
src/state/mod.rs
View File

@ -20,20 +20,18 @@ use rkyv::{
out_field,
};
use crate::oid::ObjectIdentifier;
pub mod value;
pub use value::{
SerializeDynValue,
DeserializeDynValue,
};
#[derive(Archive, Serialize, Deserialize)]
pub struct StateEntry {
key: ObjectIdentifier,
val: Box<dyn SerializeDynValue>,
}
use value::{SerializeValue, RegisteredImpl};
use crate::state::value::{TypeOid, DynVal, DynOwnedVal};
use crate::oid::ObjectIdentifier;
use serde::ser::SerializeMap;
use std::ops::Deref;
use std::fmt::Formatter;
use serde::Deserializer;
use serde::de::MapAccess;
use serde::de::Error as _;
#[derive(serde::Serialize, serde::Deserialize)]
#[derive(Archive, Serialize, Deserialize)]
/// State object of a resource
///
@ -43,44 +41,41 @@ pub struct StateEntry {
/// 3. it is sendable and forwarded to all Actors and Notifys
pub struct State {
hash: u64,
inner: Vec<StateEntry>,
}
impl PartialEq for State {
fn eq(&self, other: &Self) -> bool {
self.hash == other.hash
}
}
impl PartialEq<Archived<State>> for State {
fn eq(&self, other: &Archived<State>) -> bool {
self.hash == other.hash
}
}
impl Eq for State {}
impl fmt::Debug for State {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
let mut sf = f.debug_struct("State");
for StateEntry { key, val } in self.inner.iter() {
let k: String = key.into();
sf.field(k.as_ref(), val);
}
sf.finish()
}
pub inner: Vec<OwnedEntry>,
}
impl State {
pub fn build() -> StateBuilder {
StateBuilder::new()
}
pub fn hash(&self) -> u64 {
self.hash
}
}
impl PartialEq for State {
fn eq(&self, other: &Self) -> bool {
self.hash == other.hash
}
}
impl Eq for State {}
impl fmt::Debug for State {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
let mut sf = f.debug_struct("State");
for OwnedEntry { oid, val } in self.inner.iter() {
let k: String = oid.into();
sf.field(k.as_ref(), val);
}
sf.finish()
}
}
pub struct StateBuilder {
hasher: DefaultHasher,
inner: Vec<StateEntry>
inner: Vec<OwnedEntry>
}
impl StateBuilder {
@ -102,14 +97,71 @@ impl StateBuilder {
/// to `Hash`. Specifically, you can't have a trait object of `Hash` because `Hash` depends on
/// `Self`. In this function however the compiler still knows the exact type of `V` and can
/// call statically call its `hash` method.
pub fn add<V>(mut self, key: ObjectIdentifier<>, val: Box<V>) -> Self
where V: SerializeDynValue + Hash
pub fn add<V>(mut self, oid: ObjectIdentifier, val: Box<V>) -> Self
where V: SerializeValue + Hash + Archive,
Archived<V>: TypeOid + RegisteredImpl,
{
// Hash before creating the StateEntry struct which removes the type information
key.hash(&mut self.hasher);
oid.hash(&mut self.hasher);
val.hash(&mut self.hasher);
self.inner.push(StateEntry { key, val });
self.inner.push(OwnedEntry { oid, val });
self
}
}
}
#[derive(Debug)]
pub struct Entry<'a> {
pub oid: &'a ObjectIdentifier,
pub val: &'a dyn SerializeValue,
}
#[derive(Debug, Archive, Serialize, Deserialize)]
pub struct OwnedEntry {
pub oid: ObjectIdentifier,
pub val: Box<dyn SerializeValue>,
}
impl<'a> serde::Serialize for Entry<'a> {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where S: serde::Serializer
{
let mut ser = serializer.serialize_map(Some(1))?;
ser.serialize_entry(&self.oid, &DynVal(self.val))?;
ser.end()
}
}
impl serde::Serialize for OwnedEntry {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where S: serde::Serializer
{
let mut ser = serializer.serialize_map(Some(1))?;
ser.serialize_entry(&self.oid, &DynVal(self.val.deref()))?;
ser.end()
}
}
impl<'de> serde::Deserialize<'de> for OwnedEntry {
fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
where D: Deserializer<'de>
{
deserializer.deserialize_map(OwnedEntryVisitor)
}
}
struct OwnedEntryVisitor;
impl<'de> serde::de::Visitor<'de> for OwnedEntryVisitor {
type Value = OwnedEntry;
fn expecting(&self, formatter: &mut Formatter) -> fmt::Result {
write!(formatter, "an one entry map from OID to some value object")
}
fn visit_map<A: MapAccess<'de>>(self, mut map: A) -> Result<Self::Value, A::Error>
{
let oid: ObjectIdentifier = map.next_key()?
.ok_or(A::Error::missing_field("oid"))?;
let val: DynOwnedVal = map.next_value()?;
Ok(OwnedEntry { oid, val: val.0 })
}
}

358
src/state/value.rs
View File

@ -5,12 +5,13 @@ use std::{
fmt,
any::Any,
hash::Hash,
ops::Deref,
convert::TryFrom,
str::FromStr,
};
use rkyv::{Archive, Archived, Serialize, Deserialize, out_field, Fallible, DeserializeUnsized, ArchivePointee, ArchiveUnsized, ArchivedMetadata, SerializeUnsized};
use rkyv_dyn::{archive_dyn, DynSerializer, DynError, DynDeserializer};
use rkyv::{Archive, Archived, Serialize, Deserialize, out_field, Fallible, DeserializeUnsized,
ArchivePointee, ArchiveUnsized, ArchivedMetadata, SerializeUnsized,
};
use rkyv_dyn::{DynSerializer, DynError, DynDeserializer};
use rkyv_typename::TypeName;
use ptr_meta::{DynMetadata, Pointee};
@ -24,8 +25,14 @@ use std::fmt::Formatter;
use serde::de::Error as _;
use std::mem::MaybeUninit;
pub trait Value: fmt::Debug + erased_serde::Serialize {
/// Adding a custom type to BFFH state managenment:
///
/// 1. Implement `serde`'s [`Serialize`](serde::Serialize) and [`Deserialize`](serde::Deserialize)
/// - `derive()`d instances work just fine, but keep stability over releases in mind.
/// 2. Implement rkyv's [`Serialize`](rkyv::Serialize).
/// 3. Implement TypeOid on your Archived type (i.e. `<T as Archive>::Archived`)
/// 4. Implement this
pub trait Value: Any + fmt::Debug + erased_serde::Serialize {
/// Initialize `&mut self` from `deserializer`
///
/// At the point this is called &mut self is of undefined value but guaranteed to be well
@ -38,9 +45,11 @@ pub trait Value: fmt::Debug + erased_serde::Serialize {
-> Result<(), erased_serde::Error>;
}
erased_serde::serialize_trait_object!(Value);
erased_serde::serialize_trait_object!(SerializeValue);
erased_serde::serialize_trait_object!(DeserializeValue);
impl<T> Value for T
where T: fmt::Debug
where T: Any + fmt::Debug
+ erased_serde::Serialize
+ for<'de> serde::Deserialize<'de>
{
@ -52,44 +61,32 @@ impl<T> Value for T
}
}
impl Pointee for dyn Value {
type Metadata = DynMetadata<dyn Value>;
}
#[derive(Debug)]
pub struct Entry<'a> {
pub oid: &'a ObjectIdentifier,
pub val: &'a dyn Value,
}
#[derive(Debug)]
pub struct OwnedEntry {
pub oid: ObjectIdentifier,
pub val: Box<dyn DeserializeValue>,
}
impl<'a> serde::Serialize for Entry<'a> {
#[repr(transparent)]
pub(super) struct DynVal<'a>(pub &'a dyn SerializeValue);
impl<'a> serde::Serialize for DynVal<'a> {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where S: serde::Serializer
{
let mut ser = serializer.serialize_map(Some(1))?;
ser.serialize_entry(self.oid, self.val)?;
let oid = self.0.archived_type_oid();
ser.serialize_entry(oid, self.0)?;
ser.end()
}
}
impl<'de> serde::Deserialize<'de> for OwnedEntry {
#[repr(transparent)]
pub(super) struct DynOwnedVal(pub Box<dyn SerializeValue>);
impl<'de> serde::Deserialize<'de> for DynOwnedVal {
fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
where D: serde::Deserializer<'de>
{
deserializer.deserialize_map(OwnedEntryVisitor)
deserializer.deserialize_map(DynValVisitor)
}
}
struct OwnedEntryVisitor;
struct DynValVisitor;
impl<'de> serde::de::Visitor<'de> for OwnedEntryVisitor {
type Value = OwnedEntry;
impl<'de> serde::de::Visitor<'de> for DynValVisitor {
type Value = DynOwnedVal;
fn expecting(&self, formatter: &mut Formatter) -> fmt::Result {
write!(formatter, "an one entry map from OID to some value object")
@ -104,10 +101,9 @@ impl<'de> serde::de::Visitor<'de> for OwnedEntryVisitor {
// Get OID first. That's easy, we know it's the key, we know how to read it.
let oid: ObjectIdentifier = map.next_key()?
.ok_or(A::Error::missing_field("oid"))?;
let b: Vec<u8> = oid.clone().into();
// Get the Value vtable for that OID. Or fail because we don't know that OID, either works.
let valimpl = IMPL_REGISTRY.get(ImplId::from_type_oid(&b))
let valimpl = IMPL_REGISTRY.get(ImplId::from_type_oid(&oid))
.ok_or(serde::de::Error::invalid_value(
serde::de::Unexpected::Other("unknown oid"),
&"oid an implementation was registered for",
@ -115,7 +111,7 @@ impl<'de> serde::de::Visitor<'de> for OwnedEntryVisitor {
// Casting random usize you find on the side of the road as vtable on unchecked pointers.
// What could possibly go wrong? >:D
let valbox: MaybeUninit<Box<dyn DeserializeValue>> = unsafe {
let valbox: MaybeUninit<Box<dyn SerializeValue>> = unsafe {
// "recreate" vtable as fat ptr metadata (we literally just cast an `usize` but the
// only way to put this usize into that spot is by having a valid vtable cast so it's
// probably almost safe)
@ -143,14 +139,14 @@ impl<'de> serde::de::Visitor<'de> for OwnedEntryVisitor {
// the game yet. >:D
let seed = InitIntoSelf(valbox);
let val = map.next_value_seed(seed)?;
Ok(OwnedEntry { oid, val })
Ok(DynOwnedVal(val))
}
}
struct InitIntoSelf(MaybeUninit<Box<dyn DeserializeValue>>);
struct InitIntoSelf(MaybeUninit<Box<dyn SerializeValue>>);
impl<'de> serde::de::DeserializeSeed<'de> for InitIntoSelf {
type Value = Box<dyn DeserializeValue>;
type Value = Box<dyn SerializeValue>;
fn deserialize<D>(mut self, deserializer: D) -> Result<Self::Value, D::Error>
where D: serde::Deserializer<'de>
@ -171,39 +167,20 @@ impl<'de> serde::de::DeserializeSeed<'de> for InitIntoSelf {
}
pub trait TypeOid {
fn get_type_oid() -> ObjectIdentifier;
fn get_type_oid() -> &'static ObjectIdentifier;
fn get_type_name() -> &'static str;
fn get_type_desc() -> &'static str;
}
impl TypeOid for Archived<bool> {
fn get_type_oid() -> ObjectIdentifier {
ObjectIdentifier::try_from("1.3.6.1.4.1.48398.612.1.1").unwrap()
}
}
impl DeserializeDynOid for Archived<bool>
where Archived<bool>: for<'a> Deserialize<bool, (dyn DynDeserializer + 'a)>
{
unsafe fn deserialize_dynoid(&self, deserializer: &mut dyn DynDeserializer, alloc: &mut dyn FnMut(Layout) -> *mut u8) -> Result<*mut (), DynError> {
let ptr = alloc(Layout::new::<bool>()).cast::<bool>();
ptr.write(self.deserialize(deserializer)?);
Ok(ptr as *mut ())
}
fn deserialize_dynoid_metadata(&self, deserializer: &mut dyn DynDeserializer) -> Result<<dyn SerializeValue as Pointee>::Metadata, DynError> {
unsafe {
Ok(core::mem::transmute(ptr_meta::metadata(
core::ptr::null::<bool>() as *const dyn SerializeValue
)))
}
}
}
impl<S: ScratchSpace + Serializer + ?Sized> SerializeUnsized<S> for dyn SerializeValue {
fn serialize_unsized(&self, mut serializer: &mut S) -> Result<usize, S::Error> {
self.serialize_dynoid(&mut serializer)
.map_err(|e| *e.downcast::<S::Error>().unwrap())
}
fn serialize_metadata(&self, mut serializer: &mut S) -> Result<Self::MetadataResolver, S::Error> {
self.serialize_metadata(serializer)
fn serialize_metadata(&self, serializer: &mut S) -> Result<Self::MetadataResolver, S::Error> {
let oid = self.archived_type_oid();
oid.serialize(serializer)
}
}
@ -211,7 +188,7 @@ impl<S: ScratchSpace + Serializer + ?Sized> SerializeUnsized<S> for dyn Serializ
/// Serialize dynamic types by storing an OID alongside
pub trait SerializeDynOid {
fn serialize_dynoid(&self, serializer: &mut dyn DynSerializer) -> Result<usize, DynError>;
fn archived_type_oid(&self) -> ObjectIdentifier;
fn archived_type_oid(&self) -> &'static ObjectIdentifier;
}
impl<T> SerializeDynOid for T
@ -222,12 +199,12 @@ impl<T> SerializeDynOid for T
serializer.serialize_value(self)
}
fn archived_type_oid(&self) -> ObjectIdentifier {
fn archived_type_oid(&self) -> &'static ObjectIdentifier {
Archived::<T>::get_type_oid()
}
}
trait DeserializeDynOid {
pub trait DeserializeDynOid {
unsafe fn deserialize_dynoid(
&self,
deserializer: &mut dyn DynDeserializer,
@ -243,7 +220,7 @@ trait DeserializeDynOid {
#[ptr_meta::pointee]
pub trait SerializeValue: Value + SerializeDynOid {}
impl<T: Archive + SerializeDynOid + Value> SerializeValue for T
impl<T: Archive + Value + SerializeDynOid> SerializeValue for T
where
T::Archived: RegisteredImpl
{}
@ -258,9 +235,7 @@ impl ArchivePointee for dyn DeserializeValue {
archived.pointer_metadata()
}
}
impl<D: ?Sized> DeserializeUnsized<dyn SerializeValue, D> for dyn DeserializeValue
where D: Fallible + DynDeserializer
{
impl<D: Fallible + ?Sized> DeserializeUnsized<dyn SerializeValue, D> for dyn DeserializeValue {
unsafe fn deserialize_unsized(&self,
mut deserializer: &mut D,
mut alloc: impl FnMut(Layout) -> *mut u8
@ -282,7 +257,7 @@ impl ArchiveUnsized for dyn SerializeValue {
unsafe fn resolve_metadata(&self, pos: usize, resolver: Self::MetadataResolver, out: *mut ArchivedMetadata<Self>) {
let (oid_pos, oid) = out_field!(out.type_oid);
let type_oid = self.archived_type_oid();
type_oid.resolve(oid_pos, resolver, oid);
type_oid.resolve(pos + oid_pos, resolver, oid);
}
}
@ -297,7 +272,10 @@ impl ArchivedValueMetadata {
pub fn vtable(&self) -> usize {
IMPL_REGISTRY
.get(ImplId::from_type_oid(&self.type_oid)).expect("Unregistered type oid")
.get(ImplId::from_type_oid(&self.type_oid)).expect(&format!("Unregistered \
type \
oid \
{:?}", self.type_oid))
.vtable
}
@ -307,41 +285,58 @@ impl ArchivedValueMetadata {
}
#[derive(Copy, Clone, Debug, Hash, Eq, PartialEq)]
struct ImplId<'a> {
pub struct ImplId<'a> {
type_oid: &'a [u8],
}
impl<'a> ImplId<'a> {
fn from_type_oid(type_oid: &'a [u8]) -> Self {
pub fn from_type_oid(type_oid: &'a [u8]) -> Self {
Self { type_oid }
}
}
impl ImplId<'static> {
fn new<T: TypeOid>() -> Self {
let oid: Vec<u8> = T::get_type_oid().into();
Self {
type_oid: oid.leak()
type_oid: &T::get_type_oid()
}
}
}
#[derive(Copy, Clone, Debug)]
struct ImplData {
struct ImplData<'a> {
pub vtable: usize,
// TODO DebugImpl
// TODO DebugInfo
pub name: &'a str,
pub desc: &'a str,
pub info: ImplDebugInfo,
}
impl ImplData {
#[derive(Copy, Clone, Debug)]
#[doc(hidden)]
pub struct ImplDebugInfo {
pub file: &'static str,
pub line: u32,
pub column: u32,
}
macro_rules! debug_info {
() => {
ImplDebugInfo {
file: core::file!(),
line: core::line!(),
column: core::column!(),
}
}
}
impl ImplData<'_> {
pub unsafe fn pointer_metadata<T: ?Sized>(&self) -> DynMetadata<T> {
core::mem::transmute(self.vtable)
}
}
struct ImplEntry<'a> {
pub struct ImplEntry<'a> {
id: ImplId<'a>,
data: ImplData,
data: ImplData<'a>,
}
inventory::collect!(ImplEntry<'static>);
@ -352,13 +347,17 @@ impl ImplEntry<'_> {
id: ImplId::new::<T>(),
data: ImplData {
vtable: <T as RegisteredImpl>::vtable(),
name: <T as TypeOid>::get_type_name(),
desc: <T as TypeOid>::get_type_desc(),
info: <T as RegisteredImpl>::debug_info(),
},
}
}
}
#[derive(Debug)]
struct ImplRegistry {
oid_to_data: HashMap<ImplId<'static>, ImplData>,
oid_to_data: HashMap<ImplId<'static>, ImplData<'static>>,
}
impl ImplRegistry {
@ -368,6 +367,14 @@ impl ImplRegistry {
fn add_entry(&mut self, entry: &'static ImplEntry) {
let old_val = self.oid_to_data.insert(entry.id, entry.data);
if let Some(old) = old_val {
eprintln!("Value impl oid conflict for {:?}", entry.id.type_oid);
eprintln!("Existing impl registered at {}:{}:{}",
old.info.file, old.info.line, old.info.column);
eprintln!("New impl registered at {}:{}:{}",
entry.data.info.file, entry.data.info.line, entry.data.info.column);
}
assert!(old_val.is_none());
}
@ -389,101 +396,124 @@ lazy_static::lazy_static! {
pub unsafe trait RegisteredImpl {
fn vtable() -> usize;
fn debug_info() -> ImplDebugInfo;
}
unsafe impl RegisteredImpl for bool {
fn vtable() -> usize {
unsafe {
core::mem::transmute(ptr_meta::metadata(
core::ptr::null::<bool>() as *const dyn DeserializeValue
))
}
}
}
inventory::submit! {ImplEntry::new::<bool>()}
#[archive_dyn(deserialize)]
/// Trait to be implemented by any value in the state map.
///
/// A value can be any type not having dangling references (with the added
/// restriction that it has to implement `Debug` for debugger QoL).
/// In fact Value *also* needs to implement Hash since BFFH checks if the state
/// is different to before on input and output before updating the resource re.
/// notifying actors and notifys. This dependency is not expressable via
/// supertraits since it is not possible to make Hash into a trait object.
/// To solve this [`State`] uses the [`StateBuilder`] which adds an `Hash`
/// requirement for inputs on [`add`](struct::StateBuilder::add). The hash is
/// being created over all inserted values and then used to check for equality.
/// Note that in addition to collisions, Hash is not guaranteed stable over
/// ordering and will additionally not track overwrites, so if the order of
/// insertions changes or values are set and later overwritten then two equal
/// States can and are likely to have different hashes.
pub trait DynValue: Any + fmt::Debug {}
macro_rules! valtype {
( $x:ident, $y:ident ) => {
#[repr(transparent)]
#[derive(Debug, PartialEq, Eq, Hash)]
#[derive(Archive, Serialize, Deserialize)]
#[derive(serde::Serialize, serde::Deserialize)]
#[archive_attr(derive(TypeName, Debug))]
pub struct $x(pub $y);
#[archive_dyn(deserialize)]
impl DynValue for $x {}
impl DynValue for Archived<$x> {}
impl Deref for $x {
type Target = $y;
fn deref(&self) -> &Self::Target {
&self.0
}
}
impl From<$y> for $x {
fn from(e: $y) -> $x {
Self(e)
}
}
impl $x {
pub fn new(e: $y) -> Self {
Self(e)
macro_rules! oiddeser {
( $y:ty, $z:ty ) => {
impl DeserializeDynOid for $y
where $y: for<'a> Deserialize<$z, (dyn DynDeserializer + 'a)>
{
unsafe fn deserialize_dynoid(&self, deserializer: &mut dyn DynDeserializer, alloc: &mut dyn FnMut(Layout) -> *mut u8) -> Result<*mut (), DynError> {
let ptr = alloc(Layout::new::<$z>()).cast::<$z>();
ptr.write(self.deserialize(deserializer)?);
Ok(ptr as *mut ())
}
pub fn into_inner(self) -> $y {
self.0
fn deserialize_dynoid_metadata(&self, _: &mut dyn DynDeserializer) -> Result<<dyn
SerializeValue as Pointee>::Metadata, DynError> {
unsafe {
Ok(core::mem::transmute(ptr_meta::metadata(
core::ptr::null::<$z>() as *const dyn SerializeValue
)))
}
}
}
}
}
macro_rules! oidvalue {
( $x:ident, $y:ty ) => {
oidvalue! {$x, $y, $y}
};
( $x:ident, $y:ty, $z:ty ) => {
oiddeser! {$z, $y}
valtype!(Bool, bool);
valtype!(UInt8, u8);
valtype!(UInt16, u16);
valtype!(UInt32, u32);
valtype!(UInt64, u64);
valtype!(UInt128, u128);
valtype!(Int8, i8);
valtype!(Int16, i16);
valtype!(Int32, i32);
valtype!(Int64, i64);
valtype!(Int128, i128);
valtype!(RString, String);
impl TypeOid for $z {
fn get_type_oid() -> &'static ObjectIdentifier {
&$x
}
fn get_type_name() -> &'static str {
stringify!($y)
}
fn get_type_desc() -> &'static str {
"builtin"
}
}
unsafe impl RegisteredImpl for $z {
fn vtable() -> usize {
unsafe {
core::mem::transmute(ptr_meta::metadata(
core::ptr::null::<$z>() as *const dyn DeserializeValue
))
}
}
fn debug_info() -> ImplDebugInfo {
debug_info!()
}
}
inventory::submit! {ImplEntry::new::<$z>()}
}
}
lazy_static::lazy_static! {
pub static ref OID_BOOL: ObjectIdentifier = {
ObjectIdentifier::from_str("1.3.6.1.4.1.48398.612.1.1").unwrap()
};
pub static ref OID_U8: ObjectIdentifier = {
ObjectIdentifier::from_str("1.3.6.1.4.1.48398.612.1.2").unwrap()
};
static ref OID_U16: ObjectIdentifier = {
ObjectIdentifier::from_str("1.3.6.1.4.1.48398.612.1.3").unwrap()
};
static ref OID_U32: ObjectIdentifier = {
ObjectIdentifier::from_str("1.3.6.1.4.1.48398.612.1.4").unwrap()
};
static ref OID_U64: ObjectIdentifier = {
ObjectIdentifier::from_str("1.3.6.1.4.1.48398.612.1.5").unwrap()
};
static ref OID_U128: ObjectIdentifier = {
ObjectIdentifier::from_str("1.3.6.1.4.1.48398.612.1.6").unwrap()
};
static ref OID_I8: ObjectIdentifier = {
ObjectIdentifier::from_str("1.3.6.1.4.1.48398.612.1.7").unwrap()
};
static ref OID_I16: ObjectIdentifier = {
ObjectIdentifier::from_str("1.3.6.1.4.1.48398.612.1.8").unwrap()
};
static ref OID_I32: ObjectIdentifier = {
ObjectIdentifier::from_str("1.3.6.1.4.1.48398.612.1.9").unwrap()
};
static ref OID_I64: ObjectIdentifier = {
ObjectIdentifier::from_str("1.3.6.1.4.1.48398.612.1.10").unwrap()
};
static ref OID_I128: ObjectIdentifier = {
ObjectIdentifier::from_str("1.3.6.1.4.1.48398.612.1.11").unwrap()
};
static ref OID_VEC3U8: ObjectIdentifier = {
ObjectIdentifier::from_str("1.3.6.1.4.1.48398.612.1.13").unwrap()
};
}
oidvalue!(OID_BOOL, bool);
oidvalue!(OID_U8, u8);
oidvalue!(OID_U16, u16);
oidvalue!(OID_U32, u32);
oidvalue!(OID_U64, u64);
oidvalue!(OID_U128, u128);
oidvalue!(OID_I8, i8);
oidvalue!(OID_I16, i16);
oidvalue!(OID_I32, i32);
oidvalue!(OID_I64, i64);
oidvalue!(OID_I128, i128);
#[derive(serde::Serialize, serde::Deserialize)]
#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash, Archive, Serialize, Deserialize)]
#[archive_attr(derive(TypeName, Debug))]
#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash, rkyv::Archive, rkyv::Serialize, rkyv::Deserialize)]
#[archive_attr(derive(TypeName, Debug, serde::Serialize, serde::Deserialize))]
pub struct Vec3u8 {
pub a: u8,
pub b: u8,
pub c: u8,
}
#[archive_dyn(deserialize)]
impl DynValue for Vec3u8 {}
impl DynValue for Archived<Vec3u8> {}
#[cfg(test)]
mod tests {}
oidvalue!(OID_VEC3U8, Vec3u8, ArchivedVec3u8);

155
src/varint.rs Normal file
View File

@ -0,0 +1,155 @@
use std::default::Default;
use std::ops::{Deref};
pub struct VarUInt<const N: usize> {
offset: usize,
bytes: [u8; N],
}
impl<const N: usize> VarUInt<N> {
#[inline(always)]
const fn new(bytes: [u8; N], offset: usize) -> Self {
Self { bytes, offset }
}
#[inline(always)]
pub fn as_bytes(&self) -> &[u8] {
&self.bytes[self.offset..]
}
#[inline(always)]
fn as_mut_bytes(&mut self) -> &mut [u8] {
&mut self.bytes[..]
}
#[inline(always)]
pub const fn into_bytes(self) -> [u8; N] {
self.bytes
}
}
impl<const N: usize> Default for VarUInt<N> {
fn default() -> Self {
Self::new([0u8; N], N)
}
}
impl<const N: usize> Deref for VarUInt<N> {
type Target = [u8];
fn deref(&self) -> &Self::Target {
self.as_bytes()
}
}
macro_rules! convert_from {
( $x:ty ) => {
fn from(inp: $x) -> Self {
let mut num = inp;
let mut this = Self::default();
let bytes = this.as_mut_bytes();
let mut more = 0u8;
let mut idx: usize = bytes.len()-1;
while num > 0x7f {
bytes[idx] = ((num & 0x7f) as u8 | more);
num >>= 7;
more = 0x80;
idx -= 1;
}
bytes[idx] = (num as u8) | more;
this.offset = idx;
this
}
}
}
macro_rules! convert_into {
( $x:ty ) => {
fn into(self) -> $x {
let mut out = 0;
// [0,1,2,3,4,5,6,7,8,9]
// ^ 0
// ^offset = 5
// ^ len = 10
// ^---------^ # of valid bytes = (len - offset)
// for i in offset..len ⇒ all valid idx
let bytes = self.as_bytes();
let len = bytes.len();
let mut shift = 0;
for neg in 1..=len {
let idx = len-neg;
let val = (bytes[idx] & 0x7f) as $x;
let shifted = val << shift;
out |= shifted;
shift += 7;
}
out
}
}
}
macro_rules! impl_convert_from_to {
( $num:ty, $req:literal, $nt:ident ) => {
pub type $nt = VarUInt<$req>;
impl From<$num> for VarUInt<$req> {
convert_from! { $num }
}
impl Into<$num> for VarUInt<$req> {
convert_into! { $num }
}
}
}
impl_convert_from_to!(u8, 2, VarU8);
impl_convert_from_to!(u32, 5, VarU32);
impl_convert_from_to!(u64, 10, VarU64);
impl_convert_from_to!(u128, 19, VarU128);
impl<T, const N: usize> From<&T> for VarUInt<N>
where T: Copy,
VarUInt<N>: From<T>
{
fn from(t: &T) -> Self {
(*t).into()
}
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_varuint() {
let inp = u64::MAX;
let vi: VarU64 = inp.into();
println!("Encoded {} into {:?}", inp, vi.as_bytes());
let outp: u64 = vi.into();
assert_eq!(inp, outp);
let inp = 0x80;
let vi: VarUInt<10> = inp.into();
println!("Encoded {} into {:?}", inp, vi.as_bytes());
let outp: u64 = vi.into();
assert_eq!(inp, outp);
}
#[test]
fn minimal() {
let a = 5u8;
assert_eq!(VarU8::from(a).as_bytes(), &[a]);
let a = 200u8;
assert_eq!(VarU8::from(a).as_bytes(), &[129, 72]);
let inp = 128;
let vi: VarU32 = inp.into();
let expected: &[u8] = &[129, 0];
assert_eq!(vi.as_bytes(), expected)
}
}