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LibSQL+SQLServer+SQLStudio+sql: Allocate per-statement-execution IDs

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In order to execute a prepared statement multiple times, and track each
execution's results, clients will need to be provided an execution ID.
This will create a monotonically increasing ID each time a prepared
statement is executed for this purpose.
This commit is contained in:
Timothy Flynn 2022-12-02 17:14:56 -05:00 • committed by Andreas Kling
parent e2f71d2808
commit aec75d749a
10 changed files with 66 additions and 51 deletions
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10
Userland/Services/SQLServer/SQLStatement.h
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@ -28,17 +28,21 @@ public:
static RefPtr<SQLStatement> statement_for(u64 statement_id);
u64 statement_id() const { return m_statement_id; }
DatabaseConnection* connection() { return dynamic_cast<DatabaseConnection*>(parent()); }
void execute(Vector<SQL::Value> placeholder_values);
Optional<u64> execute(Vector<SQL::Value> placeholder_values);
private:
SQLStatement(DatabaseConnection&, NonnullRefPtr<SQL::AST::Statement> statement);
bool should_send_result_rows() const;
void next();
void report_error(SQL::Result);
void next(u64 execution_id);
void report_error(SQL::Result, u64 execution_id);
u64 m_statement_id { 0 };
size_t m_index { 0 };
HashTable<u64> m_ongoing_executions;
u64 m_next_execution_id { 0 };
NonnullRefPtr<SQL::AST::Statement> m_statement;
Optional<SQL::ResultSet> m_result {};
};