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feat(thrift): port from kitex/pkg/utils/fastthrift
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,89 @@ | ||
| /* | ||
| * Copyright 2024 CloudWeGo Authors | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
|
||
| package thrift | ||
|
|
||
| import ( | ||
| "errors" | ||
|
|
||
| "github.com/bytedance/gopkg/lang/dirtmake" | ||
| ) | ||
|
|
||
| // NocopyWriteThreshold represents the threshold of using `NocopyWriter` for binary or string | ||
| // | ||
| // It's used by `WriteBinaryNocopy` and `WriteStringNocopy` of `BinaryProtocol` | ||
| // which are relied by kitex tool or thriftgo | ||
| var NocopyWriteThreshold = 4096 | ||
|
|
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| // BinaryWriter represents the method used in thrift encoding for nocopy writes | ||
| // It supports netpoll nocopy feature, see: https://github.com/cloudwego/netpoll/blob/develop/nocopy.go | ||
| type NocopyWriter interface { | ||
| WriteDirect(b []byte, remainCap int) error | ||
| } | ||
|
|
||
| // FastCodec represents the interface of thrift fastcodec generated structs | ||
| type FastCodec interface { | ||
| BLength() int | ||
| FastWriteNocopy(buf []byte, bw NocopyWriter) int | ||
| FastRead(buf []byte) (int, error) | ||
| } | ||
|
|
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| // FastMarshal marshals the msg to buf. The msg should implement FastCodec. | ||
| func FastMarshal(msg FastCodec) []byte { | ||
| sz := msg.BLength() | ||
| buf := dirtmake.Bytes(sz, sz) | ||
| msg.FastWriteNocopy(buf, nil) | ||
| return buf | ||
| } | ||
|
|
||
| // FastUnmarshal unmarshal the buf into msg. The msg should implement FastCodec. | ||
| func FastUnmarshal(buf []byte, msg FastCodec) error { | ||
| _, err := msg.FastRead(buf) | ||
| return err | ||
| } | ||
|
|
||
| // MarshalFastMsg encodes the given msg to buf for generic thrift RPC. | ||
| func MarshalFastMsg(method string, msgType TMessageType, seq int32, msg FastCodec) ([]byte, error) { | ||
| if method == "" { | ||
| return nil, errors.New("method not set") | ||
| } | ||
| sz := Binary.MessageBeginLength(method, msgType, seq) + msg.BLength() | ||
| b := dirtmake.Bytes(sz, sz) | ||
| i := Binary.WriteMessageBegin(b, method, msgType, seq) | ||
| _ = msg.FastWriteNocopy(b[i:], nil) | ||
| return b, nil | ||
| } | ||
|
|
||
| // UnmarshalFastMsg parses the given buf and stores the result to msg for generic thrift RPC. | ||
| // for EXCEPTION msgType, it will returns `err` with *ApplicationException type without storing the result to msg. | ||
| func UnmarshalFastMsg(b []byte, msg FastCodec) (method string, seq int32, err error) { | ||
| method, msgType, seq, i, err := Binary.ReadMessageBegin(b) | ||
| if err != nil { | ||
| return "", 0, err | ||
| } | ||
| b = b[i:] | ||
|
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| if msgType == EXCEPTION { | ||
| ex := NewApplicationException(UNKNOWN_APPLICATION_EXCEPTION, "") | ||
| _, err = ex.FastRead(b) | ||
| if err != nil { | ||
| return method, seq, err | ||
| } | ||
| return method, seq, ex | ||
| } | ||
| _, err = msg.FastRead(b) | ||
| return method, seq, err | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,61 @@ | ||
| /* | ||
| * Copyright 2024 CloudWeGo Authors | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
|
||
| package thrift | ||
|
|
||
| import ( | ||
| "testing" | ||
|
|
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| "github.com/stretchr/testify/require" | ||
| ) | ||
|
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| func TestFastMarshal(t *testing.T) { | ||
| req1, req2 := NewApplicationException(1, "hello"), NewApplicationException(0, "") | ||
| buf := FastMarshal(req1) | ||
| err := FastUnmarshal(buf, req2) | ||
| require.NoError(t, err) | ||
| require.Equal(t, req1.t, req2.t) | ||
| require.Equal(t, req1.m, req2.m) | ||
| } | ||
|
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| func TestMarshalFastMsg(t *testing.T) { | ||
| // CALL and REPLY | ||
|
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| req := NewApplicationException(1, "hello") | ||
| b, err := MarshalFastMsg("Echo", CALL, 1, req) | ||
| require.NoError(t, err) | ||
|
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| resp := NewApplicationException(0, "") | ||
| method, seq, err := UnmarshalFastMsg(b, resp) | ||
| require.NoError(t, err) | ||
| require.Equal(t, "Echo", method) | ||
| require.Equal(t, int32(1), seq) | ||
| require.Equal(t, req.t, resp.t) | ||
| require.Equal(t, req.m, resp.m) | ||
|
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| // EXCEPTION | ||
|
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| ex := NewApplicationException(WRONG_METHOD_NAME, "Ex!") | ||
| b, err = MarshalFastMsg("ExMethod", EXCEPTION, 2, ex) | ||
| require.NoError(t, err) | ||
| method, seq, err = UnmarshalFastMsg(b, nil) | ||
| require.NotNil(t, err) | ||
| require.Equal(t, "ExMethod", method) | ||
| require.Equal(t, int32(2), seq) | ||
| e, ok := err.(*ApplicationException) | ||
| require.True(t, ok) | ||
| require.True(t, e.TypeID() == ex.TypeID() && e.Error() == ex.Error()) | ||
| } |
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