//===----------------------------------------------------------------------===//
//
//                         BusTub
//
// log_manager.cpp
//
// Identification: src/recovery/log_manager.cpp
//
// Copyright (c) 2015-2025, Carnegie Mellon University Database Group
//
//===----------------------------------------------------------------------===//

#include "recovery/log_manager.h"

namespace bustub {
/*
 * set enable_logging = true
 * Start a separate thread to execute flush to disk operation periodically
 * The flush can be triggered when timeout or the log buffer is full or buffer
 * pool manager wants to force flush (it only happens when the flushed page has
 * a larger LSN than persistent LSN)
 *
 * This thread runs forever until system shutdown/StopFlushThread
 */
void LogManager::RunFlushThread() {}

/*
 * Stop and join the flush thread, set enable_logging = false
 */
void LogManager::StopFlushThread() {}

/*
 * append a log record into log buffer
 * you MUST set the log record's lsn within this method
 * @return: lsn that is assigned to this log record
 *
 *
 * example below
 * // First, serialize the must have fields(20 bytes in total)
 * log_record.lsn_ = next_lsn_++;
 * memcpy(log_buffer_ + offset_, &log_record, 20);
 * int pos = offset_ + 20;
 *
 * if (log_record.log_record_type_ == LogRecordType::INSERT) {
 *    memcpy(log_buffer_ + pos, &log_record.insert_rid_, sizeof(RID));
 *    pos += sizeof(RID);
 *    // we have provided serialize function for tuple class
 *    log_record.insert_tuple_.SerializeTo(log_buffer_ + pos);
 *  }
 *
 */
auto LogManager::AppendLogRecord(LogRecord *log_record) -> lsn_t { return INVALID_LSN; }

}  // namespace bustub