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ABI functions return WasmResult. (envoyproxy#133)
* ABI functions return WasmResult. Signed-off-by: John Plevyak <jplevyak@gmail.com>
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386 changes: 209 additions & 177 deletions
386
api/wasm/cpp/proxy_wasm_impl.h → api/wasm/cpp/proxy_wasm_api.h
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,49 @@ | ||
| /* | ||
| * Intrinsic enumerations available to WASM modules. | ||
| */ | ||
| // NOLINT(namespace-envoy) | ||
|
|
||
| #pragma once | ||
|
|
||
| enum class MetadataType : int32_t { | ||
| Request = 0, | ||
| Response = 1, | ||
| RequestRoute = 2, // Immutable | ||
| ResponseRoute = 3, // Immutable | ||
| Log = 4, // Immutable | ||
| Node = 5, // Immutable | ||
| Listener = 6, // Immutable | ||
| Cluster = 7, // Immutable | ||
| Expression = 8, // The key is a string expression. Only proxy_getMetadata(). | ||
| MAX = 8, | ||
| }; | ||
| /* | ||
| Expression and their types: | ||
| request.protocol : string | ||
| response.protocol : string | ||
| request.destination_port : int32 | ||
| response.destination_port : int32 | ||
| request.response_code : int32 | ||
| response.response_code : int32 | ||
| upstream.tls_version : string | ||
| downstream.tls_version : string | ||
| plugin.direction : int32 (enum PluginDirection) | ||
| */ | ||
|
|
||
| enum class HeaderMapType : int32_t { | ||
| RequestHeaders = 0, // During the onLog callback these are immutable | ||
| RequestTrailers = 1, // During the onLog callback these are immutable | ||
| ResponseHeaders = 2, // During the onLog callback these are immutable | ||
| ResponseTrailers = 3, // During the onLog callback these are immutable | ||
| GrpcCreateInitialMetadata = 4, | ||
| GrpcReceiveInitialMetadata = 5, // Immutable | ||
| GrpcReceiveTrailingMetadata = 6, // Immutable | ||
| MAX = 6, | ||
| }; | ||
|
|
||
| enum class PluginDirection : int32_t { | ||
| Unspecified = 0, | ||
| Inbound = 1, | ||
| Outbound = 2, | ||
| }; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,42 @@ | ||
| /* | ||
| * Intrinsic enumerations available to WASM modules. | ||
| */ | ||
| // NOLINT(namespace-envoy) | ||
|
|
||
| #pragma once | ||
|
|
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| #include <string> | ||
|
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| enum class WasmResult : uint32_t { | ||
| Ok = 0, | ||
| // The result could not be found, e.g. a provided key did not appear in a table. | ||
| NotFound = 1, | ||
| // An argument was bad, e.g. did not not conform to the required range. | ||
| BadArgument = 2, | ||
| // A protobuf could not be serialized. | ||
| SerializationFailure = 3, | ||
| // A protobuf could not be parsed. | ||
| ParseFailure = 4, | ||
| // A provided expression (e.g. "foo.bar") was illegal or unrecognized. | ||
| BadExpression = 5, | ||
| // A provided memory range was not legal. | ||
| InvalidMemoryAccess = 6, | ||
| // Data was requested from an empty container. | ||
| Empty = 7, | ||
| // The provided CAS did not match that of the stored data. | ||
| CasMismatch = 8, | ||
| }; | ||
|
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| inline std::string toString(WasmResult r) { | ||
| switch (r) { | ||
| case WasmResult::Ok: return "Ok"; | ||
| case WasmResult::NotFound : return "NotFound"; | ||
| case WasmResult::BadArgument : return "BadArgument"; | ||
| case WasmResult::SerializationFailure : return "SerializationFailure"; | ||
| case WasmResult::ParseFailure : return "ParseFailure"; | ||
| case WasmResult::BadExpression : return "BadExpression"; | ||
| case WasmResult::InvalidMemoryAccess : return "InvalidMemoryAccess"; | ||
| case WasmResult::Empty : return "Empty"; | ||
| case WasmResult::CasMismatch : return "CasMismatch"; | ||
| } | ||
| } |
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