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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,25 @@ | ||
| // Copyright © 2024 JR team | ||
| // | ||
| // Permission is hereby granted, free of charge, to any person obtaining a copy | ||
| // of this software and associated documentation files (the "Software"), to deal | ||
| // in the Software without restriction, including without limitation the rights | ||
| // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
| // copies of the Software, and to permit persons to whom the Software is | ||
| // furnished to do so, subject to the following conditions: | ||
| // | ||
| // The above copyright notice and this permission notice shall be included in | ||
| // all copies or substantial portions of the Software. | ||
| // | ||
| // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
| // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
| // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
| // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | ||
| // THE SOFTWARE. | ||
| package wasm | ||
|
|
||
| type Config struct { | ||
| ModulePath string `json:"module_path"` | ||
| BindStdout bool `json:"bind_stdout"` | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,147 @@ | ||
| // Copyright © 2024 JR team | ||
| // Permission is hereby granted, free of charge, to any person obtaining a copy | ||
| // of this software and associated documentation files (the "Software"), to deal | ||
| // in the Software without restriction, including without limitation the rights | ||
| // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
| // copies of the Software, and to permit persons to whom the Software is | ||
| // furnished to do so, subject to the following conditions: | ||
| // | ||
| // The above copyright notice and this permission notice shall be included in | ||
| // all copies or substantial portions of the Software. | ||
| // | ||
| // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
| // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
| // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
| // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | ||
| // THE SOFTWARE. | ||
| package wasm | ||
|
|
||
| import ( | ||
| "bytes" | ||
| "context" | ||
| "encoding/json" | ||
| "errors" | ||
| "os" | ||
| "sync" | ||
|
|
||
| "github.com/rs/zerolog/log" | ||
| "github.com/tetratelabs/wazero" | ||
|
|
||
| wazapi "github.com/tetratelabs/wazero/api" | ||
| wasi "github.com/tetratelabs/wazero/imports/wasi_snapshot_preview1" | ||
| ) | ||
|
|
||
| type Producer struct { | ||
| lock sync.Mutex | ||
|
|
||
| r wazero.Runtime | ||
| m wazapi.Module | ||
| f wazapi.Function | ||
|
|
||
| stdin *bytes.Buffer | ||
| stderr *bytes.Buffer | ||
| } | ||
|
|
||
| func (p *Producer) Initialize(ctx context.Context, configFile string) { | ||
| cfgBytes, err := os.ReadFile(configFile) | ||
| if err != nil { | ||
| log.Fatal().Err(err).Msg("Failed to read config file") | ||
| } | ||
|
|
||
| config := Config{} | ||
| if err := json.Unmarshal(cfgBytes, &config); err != nil { | ||
| log.Fatal().Err(err).Msg("Failed to unmarshal config") | ||
| } | ||
|
|
||
| p.InitializeFromConfig(ctx, config) | ||
| } | ||
|
|
||
| func (p *Producer) InitializeFromConfig(ctx context.Context, config Config) { | ||
| p.lock = sync.Mutex{} | ||
| p.r = wazero.NewRuntime(ctx) | ||
|
|
||
| // initialize WASI for stdin/out | ||
| if _, err := wasi.NewBuilder(p.r).Instantiate(ctx); err != nil { | ||
| log.Fatal().Err(err).Msg("Failed to configure WASI") | ||
| } | ||
|
|
||
| moduleBytes, err := os.ReadFile(config.ModulePath) | ||
| if err != nil { | ||
| log.Fatal().Err(err).Msg("Failed to read WASM module file") | ||
| } | ||
|
|
||
| p.stdin = bytes.NewBuffer(nil) | ||
| p.stderr = bytes.NewBuffer(nil) | ||
|
|
||
| mCfg := wazero.NewModuleConfig() | ||
| mCfg = mCfg.WithStdin(p.stdin) | ||
| mCfg = mCfg.WithStderr(p.stderr) | ||
|
|
||
| if config.BindStdout { | ||
| mCfg = mCfg.WithStdout(os.Stdout) | ||
| } | ||
|
|
||
| m, err := p.r.InstantiateWithConfig(ctx, moduleBytes, mCfg) | ||
| if err != nil { | ||
| log.Fatal().Err(err).Msg("unable to create WASM module") | ||
| } | ||
|
|
||
| p.m = m | ||
| p.f = p.m.ExportedFunction("produce") | ||
| } | ||
|
|
||
| func (p *Producer) Produce(ctx context.Context, k []byte, v []byte, _ any) { | ||
| p.lock.Lock() | ||
| defer p.lock.Unlock() | ||
|
|
||
| p.stdin.Reset() | ||
| p.stderr.Reset() | ||
|
|
||
| data, err := json.Marshal(map[string][]byte{ | ||
| "k": k, | ||
| "v": v, | ||
| }) | ||
|
|
||
| if err != nil { | ||
| log.Fatal().Err(err).Msg("Failed to serialize WASM request") | ||
| } | ||
|
|
||
| p.stdin.Write(data) | ||
| ret, err := p.f.Call(ctx, uint64(len(data))) | ||
|
|
||
| if err != nil { | ||
| log.Fatal().Err(err).Msg("Failed to invoke WASM function") | ||
| } | ||
|
|
||
| if len(ret) == 1 && ret[0] > 0 { | ||
| err = p.extractError(ret[0]) | ||
| if err != nil { | ||
| log.Fatal().Err(err).Msg("Failed to execute WASM function") | ||
| } | ||
| } | ||
| } | ||
|
|
||
| func (p *Producer) Close(ctx context.Context) error { | ||
| if p.r == nil { | ||
| if err := p.r.Close(ctx); err != nil { | ||
| return err | ||
| } | ||
| } | ||
|
|
||
| return nil | ||
| } | ||
|
|
||
| func (p *Producer) extractError(len uint64) error { | ||
| if len == 0 { | ||
| return nil | ||
| } | ||
|
|
||
| out := p.stderr.Bytes() | ||
| if out == nil { | ||
| return nil | ||
| } | ||
|
|
||
| return errors.New(string(out)) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,52 @@ | ||
| // Copyright © 2024 JR team | ||
| // Permission is hereby granted, free of charge, to any person obtaining a copy | ||
| // of this software and associated documentation files (the "Software"), to deal | ||
| // in the Software without restriction, including without limitation the rights | ||
| // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
| // copies of the Software, and to permit persons to whom the Software is | ||
| // furnished to do so, subject to the following conditions: | ||
| // | ||
| // The above copyright notice and this permission notice shall be included in | ||
| // all copies or substantial portions of the Software. | ||
| // | ||
| // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
| // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
| // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
| // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | ||
| // THE SOFTWARE. | ||
| package wasm_test | ||
|
|
||
| import ( | ||
| "context" | ||
| "github.com/jrnd-io/jr/pkg/producers/wasm" | ||
| "testing" | ||
| ) | ||
|
|
||
| func TestWASMProducer(t *testing.T) { | ||
|
|
||
| testCases := []struct { | ||
| name string | ||
| config wasm.Config | ||
| }{ | ||
| { | ||
| name: "testprint", | ||
| config: wasm.Config{ | ||
| ModulePath: "wasm_producer_test_function.wasm", | ||
| BindStdout: true, | ||
| }, | ||
| }, | ||
| } | ||
|
|
||
| for _, tc := range testCases { | ||
| t.Run(tc.name, func(t *testing.T) { | ||
| ctx := context.Background() | ||
|
|
||
| p := &wasm.Producer{} | ||
| p.InitializeFromConfig(ctx, tc.config) | ||
| p.Produce(ctx, []byte("somekey"), []byte("someval"), nil) | ||
| }) | ||
|
|
||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,50 @@ | ||
| //go:build tinygo.wasm | ||
|
|
||
| // tinygo build -o pkg/producers/wasm/wasm_producer_test_function.wasm -target=wasi pkg/producers/wasm/wasm_producer_test_function.go | ||
| package main | ||
|
|
||
| import ( | ||
| "bytes" | ||
| "encoding/json" | ||
| "io" | ||
| "os" | ||
| ) | ||
|
|
||
| const NoError = 0 | ||
|
|
||
| //export produce | ||
| func _produce(size uint32) uint64 { | ||
| b := make([]byte, size) | ||
|
|
||
| _, err := io.ReadAtLeast(os.Stdin, b, int(size)) | ||
| if err != nil { | ||
| return e(err) | ||
| } | ||
|
|
||
| in := make(map[string][]byte) | ||
|
|
||
| err = json.Unmarshal(b, &in) | ||
| if err != nil { | ||
| return e(err) | ||
| } | ||
|
|
||
| out := bytes.ToUpper(in["v"]) | ||
|
|
||
| _, err = os.Stdout.Write(out) | ||
| if err != nil { | ||
| return e(err) | ||
| } | ||
|
|
||
| return NoError | ||
| } | ||
|
|
||
| func e(err error) uint64 { | ||
| if err == nil { | ||
| return NoError | ||
| } | ||
|
|
||
| _, _ = os.Stderr.WriteString(err.Error()) | ||
| return uint64(len(err.Error())) | ||
| } | ||
|
|
||
| func main() {} |
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