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#pragma once
#include <string>
#include <vector>
#include <stdexcept>
#include <chrono>
#include <memory>
namespace mapbox {
namespace sqlite {
enum OpenFlag : int {
ReadOnly = 0x00000001,
ReadWrite = 0x00000002,
Create = 0x00000004,
NoMutex = 0x00008000,
FullMutex = 0x00010000,
SharedCache = 0x00020000,
PrivateCache = 0x00040000,
};
enum class ResultCode : int {
OK = 0,
Error = 1,
Internal = 2,
Perm = 3,
Abort = 4,
Busy = 5,
Locked = 6,
NoMem = 7,
ReadOnly = 8,
Interrupt = 9,
IOErr = 10,
Corrupt = 11,
NotFound = 12,
Full = 13,
CantOpen = 14,
Protocol = 15,
Schema = 17,
TooBig = 18,
Constraint = 19,
Mismatch = 20,
Misuse = 21,
NoLFS = 22,
Auth = 23,
Range = 25,
NotADB = 26
};
class Exception : public std::runtime_error {
public:
Exception(int err, const char* msg)
: std::runtime_error(msg), code(static_cast<ResultCode>(err)) {
}
Exception(ResultCode err, const char* msg)
: std::runtime_error(msg), code(err) {
}
Exception(int err, const std::string& msg)
: std::runtime_error(msg), code(static_cast<ResultCode>(err)) {
}
Exception(ResultCode err, const std::string& msg)
: std::runtime_error(msg), code(err) {
}
const ResultCode code = ResultCode::OK;
};
class DatabaseImpl;
class Statement;
class StatementImpl;
class Database {
private:
Database(const Database &) = delete;
Database &operator=(const Database &) = delete;
public:
Database(const std::string &filename, int flags = 0);
Database(Database &&);
~Database();
Database &operator=(Database &&);
void setBusyTimeout(std::chrono::milliseconds);
void exec(const std::string &sql);
Statement prepare(const char *query);
private:
std::unique_ptr<DatabaseImpl> impl;
friend class Statement;
};
class Statement {
private:
Statement(const Statement &) = delete;
Statement &operator=(const Statement &) = delete;
public:
Statement(Database *db, const char *sql);
Statement(Statement &&);
~Statement();
Statement &operator=(Statement &&);
template <typename T> void bind(int offset, T value);
// Text
void bind(int offset, const char *, std::size_t length, bool retain = true);
void bind(int offset, const std::string&, bool retain = true);
// Blob
void bindBlob(int offset, const void *, std::size_t length, bool retain = true);
void bindBlob(int offset, const std::vector<uint8_t>&, bool retain = true);
template <typename T> T get(int offset);
bool run();
void reset();
void clearBindings();
int64_t lastInsertRowId() const;
uint64_t changes() const;
private:
std::unique_ptr<StatementImpl> impl;
};
class Transaction {
private:
Transaction(const Transaction&) = delete;
Transaction(Transaction&&) = delete;
Transaction& operator=(const Transaction&) = delete;
public:
enum Mode {
Deferred,
Immediate,
Exclusive
};
Transaction(Database&, Mode = Deferred);
~Transaction();
void commit();
void rollback();
private:
Database& db;
bool needRollback = true;
};
}
}
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