ntex_grpc/
status.rs

1use ntex_h2::frame::Reason;
2use ntex_http::HeaderValue;
3
4macro_rules! gen_error_code {
5    (
6        $( #[$enum_attr:meta] )*
7        pub enum $name:ident {
8            $(
9                $( #[$enum_item_attr:meta] )*
10                    $var:ident=$val:expr
11            ),+
12        }) => {
13        $( #[$enum_attr] )*
14        #[repr(u8)]
15        pub enum $name {
16            $(
17                $( #[$enum_item_attr] )*
18                    $var = $val
19            ),+
20        }
21
22        impl $name {
23            #[inline]
24            pub const fn as_str(&self) -> &'static str {
25                match self {
26                    $($name::$var => stringify!($var)),+
27                }
28            }
29
30            #[inline]
31            pub const fn signature(&self) -> &'static str {
32                match self {
33                    $($name::$var => concat!("grpc-status-", stringify!($var))),+
34                }
35            }
36
37            #[inline]
38            pub const fn code(&self) -> u8 {
39                match self {
40                    $($name::$var => $val),+
41                }
42            }
43
44            #[inline]
45            pub const fn code_str(&self) -> &'static str {
46                match self {
47                    $($name::$var => stringify!($val)),+
48                }
49            }
50        }
51
52        impl std::convert::TryFrom<u8> for $name {
53            type Error = ();
54            #[inline]
55            fn try_from(v: u8) -> Result<Self, Self::Error> {
56                match v {
57                    $($val => Ok($name::$var)),+
58                    ,_ => Err(())
59                }
60            }
61        }
62
63        impl From<$name> for u8 {
64            #[inline]
65            fn from(v: $name) -> Self {
66                unsafe { ::std::mem::transmute(v) }
67            }
68        }
69
70        impl From<$name> for HeaderValue {
71            #[inline]
72            fn from(v: $name) -> Self {
73                HeaderValue::from_static(v.code_str())
74            }
75        }
76    };
77}
78
79gen_error_code! {
80    #[derive(Copy, Clone, PartialEq, Eq, Debug)]
81    pub enum GrpcStatus {
82        Ok = 0,
83        Cancelled = 1,
84        Unknown = 2,
85        InvalidArgument = 3,
86        DeadlineExceeded = 4,
87        NotFound = 5,
88        AlredyExists = 6,
89        PermissionDenied = 7,
90        ResourceExhausted = 8,
91        FailedPrecondition = 9,
92        Aborted = 10,
93        OutOfRange = 11,
94        Unimplemented = 12,
95        Internal = 13,
96        Unavailable = 14,
97        DataLoss = 15,
98        Unauthenticated = 16
99    }
100}
101
102impl From<Reason> for GrpcStatus {
103    fn from(reason: Reason) -> GrpcStatus {
104        match reason {
105            Reason::NO_ERROR
106            | Reason::PROTOCOL_ERROR
107            | Reason::INTERNAL_ERROR
108            | Reason::FLOW_CONTROL_ERROR
109            | Reason::SETTINGS_TIMEOUT
110            | Reason::FRAME_SIZE_ERROR
111            | Reason::COMPRESSION_ERROR
112            | Reason::CONNECT_ERROR => GrpcStatus::Internal,
113            Reason::REFUSED_STREAM => GrpcStatus::Unavailable,
114            Reason::CANCEL => GrpcStatus::Cancelled,
115            Reason::ENHANCE_YOUR_CALM => GrpcStatus::ResourceExhausted,
116            Reason::INADEQUATE_SECURITY => GrpcStatus::PermissionDenied,
117            _ => GrpcStatus::Unknown,
118        }
119    }
120}
ntex_grpc/status.rs

ntex_grpc/
status.rs
