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// Copyright 2025 syzkaller project authors. All rights reserved.
// Use of this source code is governed by Apache 2 LICENSE that can be found in the LICENSE file.
package reporter
import (
"context"
"fmt"
"time"
"github.com/google/syzkaller/syz-cluster/pkg/api"
"github.com/google/syzkaller/syz-cluster/pkg/app"
"github.com/google/syzkaller/syz-cluster/pkg/db"
)
const (
// The frequency of checking for new results to report.
generateReportsPeriod = time.Minute
// How many result to check at each loop iteration.
generateReportsLimit = 5
// Consider only recently finished sessions.
// It helps optimize DB queries + older sessions are not relevant anyway.
relevantReportAge = time.Hour * 24 * 3
)
type ReportGenerator struct {
sessionRepo *db.SessionRepository
reportRepo *db.ReportRepository
}
func NewGenerator(env *app.AppEnvironment) *ReportGenerator {
return &ReportGenerator{
sessionRepo: db.NewSessionRepository(env.Spanner),
reportRepo: db.NewReportRepository(env.Spanner),
}
}
func (rg *ReportGenerator) Loop(ctx context.Context) {
for {
err := rg.Process(ctx, generateReportsLimit)
if err != nil {
app.Errorf("failed to process reports: %v", err)
}
select {
case <-ctx.Done():
return
case <-time.After(generateReportsPeriod):
}
}
}
func (rg *ReportGenerator) Process(ctx context.Context, limit int) error {
list, err := rg.sessionRepo.MissingReportList(ctx,
time.Now().Add(-relevantReportAge), limit)
if err != nil {
return fmt.Errorf("failed to query sessions: %w", err)
}
for _, session := range list {
report := &db.SessionReport{
SessionID: session.ID,
Moderation: true,
Reporter: api.LKMLReporter,
}
err := rg.reportRepo.Insert(ctx, report)
if err != nil {
return fmt.Errorf("failed to insert the report: %w", err)
}
}
return nil
}
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