添加日志打印

src/record_manager.cpp

@@ -125,6 +125,24 @@ bool RecordManager::loadSrsConfig()
     return true;
 }
 
+std::optional<int64_t> RecordManager::getEarliestRecordMs()
+{
+    std::lock_guard<std::mutex> lock(index_mutex_);
+
+    int64_t earliest = -1;
+
+    for (auto& kv : index_)
+    {
+        for (auto& f : kv.second)
+        {
+            if (earliest < 0 || f.start_ms < earliest) earliest = f.start_ms;
+        }
+    }
+
+    if (earliest < 0) return std::nullopt;
+    return earliest;
+}
+
 void RecordManager::removeExpiredDays()
 {
     namespace fs = std::filesystem;
@@ -290,7 +308,32 @@ void RecordManager::startAutoScan(int interval_sec)
                 auto t0 = std::chrono::steady_clock::now();
 
                 this->scanAll();
+
+                // ======= 新增：打印最早录像时间 + 磁盘使用率 =======
+                auto earliestOpt = this->getEarliestRecordMs();
+                if (earliestOpt.has_value())
+                {
+                    std::string tReadable = RecordManager::toReadable(earliestOpt.value());
+
+                    struct statvfs vfs{};
+                    double usedPct = -1;
+                    if (statvfs(record_dir_.c_str(), &vfs) == 0)
+                    {
+                        double used = 1.0 - (double)vfs.f_bavail / (double)vfs.f_blocks;
+                        usedPct = used * 100.0;
+                    }
+
+                    LOG_INFO("[RecordManager] Earliest record time=" + tReadable +
+                             ", disk used=" + std::to_string(usedPct) + "%");
+                }
+                else
+                {
+                    LOG_INFO("[RecordManager] No video files found.");
+                }
+
+                // ======= 再调用清理 =======
                 this->cleanupStorage();
+
                 LOG_INFO("[RecordManager] scanAll() completed.");
 
                 // 休眠剩余时间（支持快速退出）