package modbus

type Endianness int32

const (
	BigEndian    Endianness = 0
	LittleEndian Endianness = 1
)

// 在modbus协议中，主机正常是客户端
type MasterClient interface {
	// 启动
	Start() error
	// 停止
	Stop() error
	// 关闭,销毁
	Close() error
	// 是否连接
	IsConnected() bool
	// 设置从机id
	SetUnitId(id uint8) error
	// 设置字节序
	SetEndianness(endianness Endianness) error
	// 读线圈,位操作,功能码为0x01
	ReadCoil(addr uint16, quantity uint16) ([]bool, error)
	// 读一个线圈
	ReadCoilBit(addr uint16) (bool, error)
	// 读离散输入,位操作，功能码为0x02
	ReadDiscreteInput(addr uint16, quantity uint16) ([]bool, error)
	// 读保持寄存器,字节操作，功能码为0x03
	ReadHoldingRegister(addr uint16, quantity uint16) ([]uint16, error)
	// 读多个保持寄存器,字节数组
	ReadHoldingRegisterBytes(addr uint16, quantity uint16) ([]byte, error)
	// 读一个保持寄存器
	ReadHoldingRegisterUint16(addr uint16) (uint16, error)
	// 读输入寄存器,字节操作，功能码为0x04
	ReadInputRegister(addr uint16, quantity uint16) ([]uint16, error)
	// 读多个输入寄存器,字节数组
	ReadInputRegisterBytes(addr uint16, quantity uint16) ([]byte, error)
	// 写单个线圈,功能码为0x05
	WriteCoil(addr uint16, value bool) error
	// 写多个线圈,功能码为0x0F
	WriteCoils(addr uint16, values []bool) error
	// 写单个保持寄存器,功能码为0x06
	WriteRegister(addr uint16, value uint16) error
	// 写多个保持寄存器,功能码为0x10
	WriteRegisters(addr uint16, values []uint16) error
	// 写多个保持寄存器,字节数组
	WriteRegisterBytes(addr uint16, values []byte) error
}