#pragma once #include #include #include "types.hh" class sqlite3; class sqlite3_stmt; namespace nix { /* RAII wrapper to close a SQLite database automatically. */ struct SQLite { sqlite3 * db; SQLite() { db = 0; } ~SQLite(); operator sqlite3 * () { return db; } }; /* RAII wrapper to create and destroy SQLite prepared statements. */ struct SQLiteStmt { sqlite3 * db = 0; sqlite3_stmt * stmt = 0; SQLiteStmt() { } void create(sqlite3 * db, const std::string & s); ~SQLiteStmt(); operator sqlite3_stmt * () { return stmt; } /* Helper for binding / executing statements. */ class Use { friend struct SQLiteStmt; private: SQLiteStmt & stmt; unsigned int curArg = 1; Use(SQLiteStmt & stmt); public: ~Use(); /* Bind the next parameter. */ Use & operator () (const std::string & value, bool notNull = true); Use & operator () (int64_t value, bool notNull = true); Use & bind(); // null int step(); /* Execute a statement that does not return rows. */ void exec(); /* For statements that return 0 or more rows. Returns true iff a row is available. */ bool next(); std::string getStr(int col); int64_t getInt(int col); }; Use use() { return Use(*this); } }; /* RAII helper that ensures transactions are aborted unless explicitly committed. */ struct SQLiteTxn { bool active = false; sqlite3 * db; SQLiteTxn(sqlite3 * db); void commit(); ~SQLiteTxn(); }; MakeError(SQLiteError, Error); MakeError(SQLiteBusy, SQLiteError); [[noreturn]] void throwSQLiteError(sqlite3 * db, const format & f); /* Convenience function for retrying a SQLite transaction when the database is busy. */ template T retrySQLite(std::function fun) { while (true) { try { return fun(); } catch (SQLiteBusy & e) { } } } } ='search'/>
AgeCommit message (Expand)Author
2022-01-10gnu: heimdal: Unify phases, addressing TODO....Maxim Cournoyer
2021-12-13gnu: Simplify package inputs....Ludovic Courtès
2021-11-11gnu: heimdal: Fix build....Maxim Cournoyer
2021-11-11gnu: mit-krb5: Absorb 1.19.2 graft....Maxim Cournoyer
2021-09-20gnu: heimdal: Use libcom_err from input when cross-compiling....Maxime Devos
2021-09-20gnu: heimdal: Find tools when cross-compiling....Maxime Devos
2021-09-20gnu: heimdal: Use the cross-compiled bash in "su"....Maxime Devos
2021-09-20gnu: heimdal: Refer to cross-compiled bash....Maxime Devos
2021-09-20gnu: heimdal: Fix linking error when cross-compiling....Maxime Devos
2021-09-20gnu: heimdal: Fix inputs when cross-compiling....Maxime Devos
2021-08-12gnu: mit-krb5: Replace with 1.19.2 [fixes CVE-2021-36222]....Marius Bakke
2021-05-09gnu: mit-krb5: Update to 1.19.1....Marius Bakke
2020-10-08gnu: mit-krb5: Enable TLS support....Maxim Cournoyer
2020-05-17gnu: heimdal: Update to 7.7.0....Maxim Cournoyer