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package tools
import (
"bufio"
"context"
"fmt"
"io"
"log"
"os"
"time"
"github.com/quic-go/quic-go"
"github.com/quic-go/quic-go/internal/utils"
"github.com/quic-go/quic-go/logging"
"github.com/quic-go/quic-go/qlog"
)
func QlogTracer(logger io.Writer) *logging.Tracer {
filename := fmt.Sprintf("log_%s_transport.qlog", time.Now().Format("2006-01-02T15:04:05"))
fmt.Fprintf(logger, "Creating %s.\n", filename)
f, err := os.Create(filename)
if err != nil {
log.Fatalf("failed to create qlog file: %s", err)
return nil
}
bw := bufio.NewWriter(f)
return qlog.NewTracer(utils.NewBufferedWriteCloser(bw, f))
}
func NewQlogConnectionTracer(logger io.Writer) func(context.Context, logging.Perspective, quic.ConnectionID) *logging.ConnectionTracer {
return func(_ context.Context, p logging.Perspective, connID quic.ConnectionID) *logging.ConnectionTracer {
filename := fmt.Sprintf("log_%s_%s.qlog", connID, p.String())
fmt.Fprintf(logger, "Creating %s.\n", filename)
f, err := os.Create(filename)
if err != nil {
log.Fatalf("failed to create qlog file: %s", err)
return nil
}
bw := bufio.NewWriter(f)
return qlog.NewConnectionTracer(utils.NewBufferedWriteCloser(bw, f), p, connID)
}
}
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