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优化删除逻辑

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cxh 2025-12-02 15:12:36 +08:00
parent 7f44800010
commit e0a3406689
1 changed files with 66 additions and 26 deletions
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92
src/record_manager.cpp
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@ -186,16 +186,19 @@ void RecordManager::removeOldestHoursUntilSafe()
while (true) while (true)
{ {
// 1) 检查磁盘 // 1) 检查磁盘使用率
struct statvfs vfs{}; struct statvfs vfs{};
if (statvfs(record_dir_.c_str(), &vfs) != 0) return; if (statvfs(record_dir_.c_str(), &vfs) != 0) return;
double used = 1.0 - (double)vfs.f_bavail / (double)vfs.f_blocks; double used = 1.0 - (double)vfs.f_bavail / (double)vfs.f_blocks;
if (used < usage_threshold_) break; if (used < usage_threshold_) break;
// 2) 找全盘最旧的 day // =====================================================
fs::path oldestDay; // 2) 找“全盘最老日期字符串”（YYYY-MM-DD）
// =====================================================
std::string oldestDayName;
time_t oldestTime = 0; time_t oldestTime = 0;
bool foundDay = false;
for (auto& streamDir : fs::directory_iterator(record_dir_)) for (auto& streamDir : fs::directory_iterator(record_dir_))
{ {
@ -213,55 +216,92 @@ void RecordManager::removeOldestHoursUntilSafe()
tm.tm_mon -= 1; tm.tm_mon -= 1;
time_t t = mktime(&tm); time_t t = mktime(&tm);
if (oldestDay.empty() || t < oldestTime) if (!foundDay || t < oldestTime)
{ {
foundDay = true;
oldestTime = t; oldestTime = t;
oldestDay = dayDir.path(); oldestDayName = dayName;
} }
} }
} }
if (oldestDay.empty()) if (!foundDay)
{ {
LOG_WARN("[RecordManager] No day folder found for hour cleanup."); LOG_WARN("[RecordManager] No day folder found for hour cleanup.");
break; break;
} }
// ---- 找该 day 下最旧的 hour ---- // =====================================================
fs::path oldestHour; // 3) 在这个日期下，跨所有 stream 找最老 hour
// =====================================================
int oldestHourValue = -1; int oldestHourValue = -1;
bool foundHour = false;
for (auto& hourDir : fs::directory_iterator(oldestDay)) for (auto& streamDir : fs::directory_iterator(record_dir_))
{ {
if (!hourDir.is_directory()) continue; if (!streamDir.is_directory()) continue;
std::string hourName = hourDir.path().filename().string(); fs::path dayDir = streamDir.path() / oldestDayName;
int h = -1; if (!fs::exists(dayDir) || !fs::is_directory(dayDir)) continue;
if (sscanf(hourName.c_str(), "%d", &h) != 1) continue;
if (oldestHourValue == -1 || h < oldestHourValue) for (auto& hourDir : fs::directory_iterator(dayDir))
{ {
oldestHourValue = h; if (!hourDir.is_directory()) continue;
oldestHour = hourDir.path();
std::string hourName = hourDir.path().filename().string();
int h = -1;
if (sscanf(hourName.c_str(), "%d", &h) != 1) continue;
if (!foundHour || h < oldestHourValue)
{
foundHour = true;
oldestHourValue = h;
}
} }
} }
if (oldestHour.empty()) // =====================================================
// 4) 如果这个日期在所有 stream 下都没有 hour → 删整天
// =====================================================
if (!foundHour)
{ {
LOG_WARN("[RecordManager] Day empty, remove whole day: " + oldestDay.string()); for (auto& streamDir : fs::directory_iterator(record_dir_))
fs::remove_all(oldestDay); {
fs::path dayDir = streamDir.path() / oldestDayName;
if (fs::exists(dayDir))
{
LOG_WARN("[RecordManager] Day empty, remove whole day: " + dayDir.string());
fs::remove_all(dayDir);
}
}
continue; continue;
} }
// ---- 删除最旧 hour ---- // =====================================================
LOG_WARN("[RecordManager] Removing oldest hour: " + oldestHour.string()); // 5) 删除“同一天 + 同一小时”在所有路上的数据
fs::remove_all(oldestHour); // =====================================================
char hourBuf[4];
snprintf(hourBuf, sizeof(hourBuf), "%02d", oldestHourValue);
std::string hourName(hourBuf);
// 如果此 day 已空 → 删除 day 目录 for (auto& streamDir : fs::directory_iterator(record_dir_))
if (fs::is_empty(oldestDay))
{ {
LOG_WARN("[RecordManager] Removing empty day: " + oldestDay.string()); if (!streamDir.is_directory()) continue;
fs::remove_all(oldestDay);
fs::path hourDir = streamDir.path() / oldestDayName / hourName;
if (fs::exists(hourDir) && fs::is_directory(hourDir))
{
LOG_WARN("[RecordManager] Removing oldest hour: " + hourDir.string());
fs::remove_all(hourDir);
}
// 顺便清掉空 day
fs::path dayDir = streamDir.path() / oldestDayName;
if (fs::exists(dayDir) && fs::is_directory(dayDir) && fs::is_empty(dayDir))
{
LOG_WARN("[RecordManager] Removing empty day: " + dayDir.string());
fs::remove_all(dayDir);
}
} }
} }
} }