1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
use std::collections::{BTreeMap, HashMap};
use std::convert::From;
use std::error;
use std::fmt::{self, Display};
use std::io;
use semver::Version;
pub use self::binary::BinaryProto;
pub mod binary;
mod binarydef;
#[derive(Copy, Clone)]
pub enum ProtoType {
Binary,
}
#[derive(Debug)]
pub enum Error {
BinaryProtoError(binary::Error),
IoError(io::Error),
OtherError { desc: &'static str, detail: Option<String> },
}
pub type MemCachedResult<T> = Result<T, Error>;
impl error::Error for Error {
fn description(&self) -> &str {
match self {
&Error::BinaryProtoError(ref err) => err.description(),
&Error::IoError(ref err) => err.description(),
&Error::OtherError { desc, .. } => desc,
}
}
}
impl Display for Error {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match self {
&Error::BinaryProtoError(ref err) => err.fmt(f),
&Error::IoError(ref err) => err.fmt(f),
&Error::OtherError { desc, ref detail } => {
write!(f, "{}", desc)?;
match detail {
&Some(ref s) => write!(f, " ({})", s),
&None => Ok(()),
}
}
}
}
}
impl From<io::Error> for Error {
fn from(err: io::Error) -> Error {
Error::IoError(err)
}
}
impl From<binary::Error> for Error {
fn from(err: binary::Error) -> Error {
Error::BinaryProtoError(err)
}
}
pub trait Proto: Operation + MultiOperation + ServerOperation + NoReplyOperation + CasOperation + AuthOperation {
}
impl<T> Proto for T where T: Operation + MultiOperation + ServerOperation + NoReplyOperation + CasOperation + AuthOperation {}
pub trait Operation {
fn set(&mut self, key: &[u8], value: &[u8], flags: u32, expiration: u32) -> MemCachedResult<()>;
fn add(&mut self, key: &[u8], value: &[u8], flags: u32, expiration: u32) -> MemCachedResult<()>;
fn delete(&mut self, key: &[u8]) -> MemCachedResult<()>;
fn replace(&mut self, key: &[u8], value: &[u8], flags: u32, expiration: u32) -> MemCachedResult<()>;
fn get(&mut self, key: &[u8]) -> MemCachedResult<(Vec<u8>, u32)>;
fn getk(&mut self, key: &[u8]) -> MemCachedResult<(Vec<u8>, Vec<u8>, u32)>;
fn increment(&mut self, key: &[u8], amount: u64, initial: u64, expiration: u32) -> MemCachedResult<u64>;
fn decrement(&mut self, key: &[u8], amount: u64, initial: u64, expiration: u32) -> MemCachedResult<u64>;
fn append(&mut self, key: &[u8], value: &[u8]) -> MemCachedResult<()>;
fn prepend(&mut self, key: &[u8], value: &[u8]) -> MemCachedResult<()>;
fn touch(&mut self, key: &[u8], expiration: u32) -> MemCachedResult<()>;
}
pub trait CasOperation {
fn set_cas(&mut self, key: &[u8], value: &[u8], flags: u32, expiration: u32, cas: u64) -> MemCachedResult<u64>;
fn add_cas(&mut self, key: &[u8], value: &[u8], flags: u32, expiration: u32) -> MemCachedResult<u64>;
fn replace_cas(&mut self, key: &[u8], value: &[u8], flags: u32, expiration: u32, cas: u64) -> MemCachedResult<u64>;
fn get_cas(&mut self, key: &[u8]) -> MemCachedResult<(Vec<u8>, u32, u64)>;
fn getk_cas(&mut self, key: &[u8]) -> MemCachedResult<(Vec<u8>, Vec<u8>, u32, u64)>;
fn increment_cas(
&mut self,
key: &[u8],
amount: u64,
initial: u64,
expiration: u32,
cas: u64,
) -> MemCachedResult<(u64, u64)>;
fn decrement_cas(
&mut self,
key: &[u8],
amount: u64,
initial: u64,
expiration: u32,
cas: u64,
) -> MemCachedResult<(u64, u64)>;
fn append_cas(&mut self, key: &[u8], value: &[u8], cas: u64) -> MemCachedResult<u64>;
fn prepend_cas(&mut self, key: &[u8], value: &[u8], cas: u64) -> MemCachedResult<u64>;
fn touch_cas(&mut self, key: &[u8], expiration: u32, cas: u64) -> MemCachedResult<u64>;
}
pub trait ServerOperation {
fn quit(&mut self) -> MemCachedResult<()>;
fn flush(&mut self, expiration: u32) -> MemCachedResult<()>;
fn noop(&mut self) -> MemCachedResult<()>;
fn version(&mut self) -> MemCachedResult<Version>;
fn stat(&mut self) -> MemCachedResult<BTreeMap<String, String>>;
}
pub trait MultiOperation {
fn set_multi(&mut self, kv: BTreeMap<&[u8], (&[u8], u32, u32)>) -> MemCachedResult<()>;
fn delete_multi(&mut self, keys: &[&[u8]]) -> MemCachedResult<()>;
fn increment_multi<'a>(
&mut self,
kv: HashMap<&'a [u8], (u64, u64, u32)>,
) -> MemCachedResult<HashMap<&'a [u8], u64>>;
fn get_multi(&mut self, keys: &[&[u8]]) -> MemCachedResult<HashMap<Vec<u8>, (Vec<u8>, u32)>>;
}
pub trait NoReplyOperation {
fn set_noreply(&mut self, key: &[u8], value: &[u8], flags: u32, expiration: u32) -> MemCachedResult<()>;
fn add_noreply(&mut self, key: &[u8], value: &[u8], flags: u32, expiration: u32) -> MemCachedResult<()>;
fn delete_noreply(&mut self, key: &[u8]) -> MemCachedResult<()>;
fn replace_noreply(&mut self, key: &[u8], value: &[u8], flags: u32, expiration: u32) -> MemCachedResult<()>;
fn increment_noreply(&mut self, key: &[u8], amount: u64, initial: u64, expiration: u32) -> MemCachedResult<()>;
fn decrement_noreply(&mut self, key: &[u8], amount: u64, initial: u64, expiration: u32) -> MemCachedResult<()>;
fn append_noreply(&mut self, key: &[u8], value: &[u8]) -> MemCachedResult<()>;
fn prepend_noreply(&mut self, key: &[u8], value: &[u8]) -> MemCachedResult<()>;
}
#[derive(Debug)]
pub enum AuthResponse {
Continue(Vec<u8>),
Succeeded,
Failed,
}
pub trait AuthOperation {
fn list_mechanisms(&mut self) -> MemCachedResult<Vec<String>>;
fn auth_start(&mut self, mech: &str, init: &[u8]) -> MemCachedResult<AuthResponse>;
fn auth_continue(&mut self, mech: &str, data: &[u8]) -> MemCachedResult<AuthResponse>;
}