使用boost :: archive :: binary_iarchive的內存泄漏

Question

反序列化正在工作，問題在於內存泄漏。 我已經嘗試刪除's'指針，但有'Targeting failure'，我無法刪除指針。

//Statment MySql 
sql::Statement *_stmt = this->con->createStatement(); 
sql::ResultSet *_result = _stmt->executeQuery("SELECT * FROM matches ORDER BY `match_seq_num` ASC LIMIT 1250"); 

while(_result->next()){ 
    std::istream *s = _result->getBlob("match_object"); 
    boost::archive::binary_iarchive ia(*s); 
    Match _match; 
    ia >> _match; 
    delete s; 
} 
delete _result; 
delete _stmt; 

的問題是使用boost::archive::binary_iarchive ia(*s);反序列化從MySQL傳來的信息後刪除的「指針。

Answer 1

當然你需要刪除。

如果出現問題，您應該解決該問題。你的更新指向一個可能的罪魁禍首：輸入檔案需要參考到istream，仍然可以在析構函數中訪問它（事實上我認爲它可能）。因此，請確保它在破壞所需資源之前已經消失：

//Statment MySql 
sql::Statement *_stmt = this->con->createStatement(); 
sql::ResultSet *_result = _stmt->executeQuery("SELECT * FROM matches ORDER BY `match_seq_num` ASC LIMIT 1250"); 

while(_result->next()){ 
    Match _match; 
    { 
     std::istream *s = _result->getBlob("match_object"); 
     { 
      boost::archive::binary_iarchive ia(*s); 
      ia >> _match; 
     } 
     delete s; 
    } 
} 
delete _result; 
delete _stmt;