aldrin_core/message/
query_introspection_reply.rs

1use super::message_ops::Sealed;
2use super::{
3    Message, MessageDeserializeError, MessageKind, MessageOps, MessageSerializeError,
4    MessageSerializer, MessageWithValueDeserializer,
5};
6use crate::{SerializedValue, SerializedValueSlice};
7use bytes::BytesMut;
8use num_enum::{IntoPrimitive, TryFromPrimitive};
9
10#[derive(Debug, Copy, Clone, PartialEq, Eq, IntoPrimitive, TryFromPrimitive)]
11#[repr(u8)]
12enum QueryIntrospectionReplyKind {
13    Ok = 0,
14    Unavailable = 1,
15}
16
17#[derive(Debug, Clone, PartialEq, Eq)]
18#[cfg_attr(feature = "fuzzing", derive(arbitrary::Arbitrary))]
19pub enum QueryIntrospectionResult {
20    Ok(SerializedValue),
21    Unavailable,
22}
23
24#[derive(Debug, Clone, PartialEq, Eq)]
25#[cfg_attr(feature = "fuzzing", derive(arbitrary::Arbitrary))]
26pub struct QueryIntrospectionReply {
27    pub serial: u32,
28    pub result: QueryIntrospectionResult,
29}
30
31impl MessageOps for QueryIntrospectionReply {
32    fn kind(&self) -> MessageKind {
33        MessageKind::QueryIntrospectionReply
34    }
35
36    fn serialize_message(self) -> Result<BytesMut, MessageSerializeError> {
37        let serializer = match self.result {
38            QueryIntrospectionResult::Ok(value) => {
39                let mut serializer =
40                    MessageSerializer::with_value(value, MessageKind::QueryIntrospectionReply)?;
41
42                serializer.put_varint_u32_le(self.serial);
43                serializer.put_discriminant_u8(QueryIntrospectionReplyKind::Ok);
44
45                serializer
46            }
47
48            QueryIntrospectionResult::Unavailable => {
49                let mut serializer =
50                    MessageSerializer::with_none_value(MessageKind::QueryIntrospectionReply);
51
52                serializer.put_varint_u32_le(self.serial);
53                serializer.put_discriminant_u8(QueryIntrospectionReplyKind::Unavailable);
54
55                serializer
56            }
57        };
58
59        serializer.finish()
60    }
61
62    fn deserialize_message(buf: BytesMut) -> Result<Self, MessageDeserializeError> {
63        let mut deserializer =
64            MessageWithValueDeserializer::new(buf, MessageKind::QueryIntrospectionReply)?;
65
66        let serial = deserializer.try_get_varint_u32_le()?;
67
68        match deserializer.try_get_discriminant_u8()? {
69            QueryIntrospectionReplyKind::Ok => {
70                let value = deserializer.finish()?;
71
72                Ok(Self {
73                    serial,
74                    result: QueryIntrospectionResult::Ok(value),
75                })
76            }
77
78            QueryIntrospectionReplyKind::Unavailable => {
79                deserializer.finish_discard_value()?;
80
81                Ok(Self {
82                    serial,
83                    result: QueryIntrospectionResult::Unavailable,
84                })
85            }
86        }
87    }
88
89    fn value(&self) -> Option<&SerializedValueSlice> {
90        match self.result {
91            QueryIntrospectionResult::Ok(ref value) => Some(value),
92            QueryIntrospectionResult::Unavailable => None,
93        }
94    }
95
96    fn value_mut(&mut self) -> Option<&mut SerializedValue> {
97        match self.result {
98            QueryIntrospectionResult::Ok(ref mut value) => Some(value),
99            QueryIntrospectionResult::Unavailable => None,
100        }
101    }
102}
103
104impl Sealed for QueryIntrospectionReply {}
105
106impl From<QueryIntrospectionReply> for Message {
107    fn from(msg: QueryIntrospectionReply) -> Self {
108        Self::QueryIntrospectionReply(msg)
109    }
110}
111
112#[cfg(test)]
113mod test {
114    use super::super::test::{
115        assert_deserialize_eq, assert_deserialize_eq_with_value, assert_serialize_eq,
116    };
117    use super::super::Message;
118    use super::{QueryIntrospectionReply, QueryIntrospectionResult};
119    use crate::{tags, SerializedValue};
120
121    #[test]
122    fn ok() {
123        let serialized = [13, 0, 0, 0, 51, 2, 0, 0, 0, 3, 4, 1, 0];
124        let value = 4u8;
125
126        let msg = QueryIntrospectionReply {
127            serial: 1,
128            result: QueryIntrospectionResult::Ok(SerializedValue::serialize(value).unwrap()),
129        };
130
131        assert_serialize_eq(&msg, serialized);
132        assert_deserialize_eq_with_value::<_, _, tags::U8, _>(&msg, serialized, &value);
133
134        let msg = Message::QueryIntrospectionReply(msg);
135        assert_serialize_eq(&msg, serialized);
136        assert_deserialize_eq_with_value::<_, _, tags::U8, _>(&msg, serialized, &value);
137    }
138
139    #[test]
140    fn unavailable() {
141        let serialized = [12, 0, 0, 0, 51, 1, 0, 0, 0, 0, 1, 1];
142
143        let msg = QueryIntrospectionReply {
144            serial: 1,
145            result: QueryIntrospectionResult::Unavailable,
146        };
147        assert_serialize_eq(&msg, serialized);
148        assert_deserialize_eq(&msg, serialized);
149
150        let msg = Message::QueryIntrospectionReply(msg);
151        assert_serialize_eq(&msg, serialized);
152        assert_deserialize_eq(&msg, serialized);
153    }
154}
aldrin_core/message/query_introspection_reply.rs

aldrin_core/message/
query_introspection_reply.rs
