kato
2318684e93
- Run without console by default - Log to file once console hidden - Recover panics in background goroutines - Restart agent after unexpected errors - Use shared instance launch helper
51 lines
935 B
Go
51 lines
935 B
Go
package helpers
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import (
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"fmt"
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"io"
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"log"
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"os"
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"sync"
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"tea.chunkbyte.com/kato/go-worm/lib/crashlog"
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)
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var (
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logMu sync.Mutex
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logW io.Writer = os.Stdout
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)
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var Log = log.New(&logWriter{}, "", log.Ldate|log.Ltime|log.Lmicroseconds)
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type logWriter struct{}
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func (logWriter) Write(p []byte) (int, error) {
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logMu.Lock()
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defer logMu.Unlock()
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return logW.Write(p)
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}
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// SetLogOutput redirects application logging (e.g. after hiding the console).
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func SetLogOutput(w io.Writer) {
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logMu.Lock()
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defer logMu.Unlock()
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logW = w
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}
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// Go runs fn in a goroutine with panic recovery.
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func Go(component string, fn func()) {
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go func() {
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defer RecoverLog(component)
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fn()
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}()
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}
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// RecoverLog logs a recovered panic from a background component.
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func RecoverLog(component string) {
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if r := recover(); r != nil {
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detail := fmt.Sprintf("%s: %v", component, r)
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Log.Printf("panic %s", detail)
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crashlog.RecordPanic(detail)
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}
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}
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