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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,101 @@ | ||
| package executor | ||
|
|
||
| import ( | ||
| "bytes" | ||
| "context" | ||
| "sync" | ||
| "time" | ||
|
|
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| "github.com/outofforest/logger" | ||
| "go.uber.org/zap" | ||
| "go.uber.org/zap/zapcore" | ||
|
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| "github.com/outofforest/isolator/wire" | ||
| ) | ||
|
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| func newLogTransmitter(encode wire.EncoderFunc) *logTransmitter { | ||
| return &logTransmitter{ | ||
| encode: encode, | ||
| } | ||
| } | ||
|
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| type logTransmitter struct { | ||
| encode wire.EncoderFunc | ||
|
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| mu sync.Mutex | ||
| buf []byte | ||
| start int | ||
| end int | ||
| length int | ||
| } | ||
|
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| func (lt *logTransmitter) Write(data []byte) (int, error) { | ||
| lt.mu.Lock() | ||
| defer lt.mu.Unlock() | ||
|
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| bufLen := 1024 | ||
|
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| dataLength := len(data) | ||
| if dataLength == 0 { | ||
| return 0, nil | ||
| } | ||
|
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| if len(lt.buf[lt.end:]) < dataLength { | ||
| if newBufLen := lt.length + dataLength; bufLen < newBufLen { | ||
| bufLen = newBufLen | ||
| } | ||
| newBuf := make([]byte, bufLen) | ||
| if lt.length > 0 { | ||
| copy(newBuf, lt.buf[lt.start:lt.end]) | ||
| } | ||
| lt.buf = newBuf | ||
| lt.start = 0 | ||
| lt.end = lt.length | ||
| } | ||
| copy(lt.buf[lt.end:], data) | ||
| lt.end += dataLength | ||
| lt.length += dataLength | ||
|
|
||
| for { | ||
| if lt.length == 0 { | ||
| break | ||
| } | ||
| pos := bytes.IndexByte(lt.buf[lt.start:lt.end], '\n') | ||
| if pos < 0 { | ||
| break | ||
| } | ||
|
|
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| if pos > 0 { | ||
| err := lt.encode(wire.Log{Time: time.Now().UTC(), Content: lt.buf[lt.start : lt.start+pos]}) | ||
| if err != nil { | ||
| return 0, err | ||
| } | ||
| } | ||
|
|
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| lt.start += pos + 1 | ||
| lt.length -= pos + 1 | ||
|
|
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| if lt.start == lt.end { | ||
| lt.start = 0 | ||
| lt.end = 0 | ||
| } | ||
| } | ||
|
|
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| return dataLength, nil | ||
| } | ||
|
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| func (lt *logTransmitter) Sync() error { | ||
| return nil | ||
| } | ||
|
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| func withZAPTransmitter(ctx context.Context, encode wire.EncoderFunc) context.Context { | ||
| transmitter := newLogTransmitter(encode) | ||
| transmitCore := zapcore.NewCore(zapcore.NewJSONEncoder(logger.EncoderConfig), transmitter, zap.NewAtomicLevelAt(zap.DebugLevel)) | ||
|
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| log := logger.Get(ctx) | ||
| log = log.WithOptions(zap.WrapCore(func(core zapcore.Core) zapcore.Core { | ||
| return transmitCore | ||
| })) | ||
|
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| return logger.WithLogger(ctx, log) | ||
| } |