Merge branch 'master' of https://git.code.tencent.com/beijing-rtss-test/bj-rtsts-server-go
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commit
9d29a35a6c
109
third_party/message/interlock.go
vendored
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109
third_party/message/interlock.go
vendored
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package message
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import "fmt"
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// 消息包头解析
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type InterlockMsgPkgHeader struct {
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Header1 byte //包头1 1个字节
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Header2 byte //包头2 1个字节
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TypeCode uint8 //类型码 1个字节 0x02
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SerialNumber uint8 //序列号 1个字节 序列号0~255
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Reserve1 byte //预留 1个字节
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Reserve2 byte //预留 1个字节
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}
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func (h *InterlockMsgPkgHeader) Encode() []byte {
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return []byte{h.Header1, h.Header2, h.TypeCode, h.SerialNumber, h.Reserve1, h.Reserve2}
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}
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func (h *InterlockMsgPkgHeader) Decode(buf []byte) error {
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if len(buf) < 6 {
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return fmt.Errorf("数据少于6个字节")
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}
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h.Header1 = buf[0]
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h.Header2 = buf[1]
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h.TypeCode = buf[2]
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h.SerialNumber = buf[3]
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h.Reserve1 = buf[4]
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h.Reserve2 = buf[5]
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return nil
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}
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// 消息包尾解析
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type InterlockMsgPkgTail struct {
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Tail []byte // 包尾2个字节
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}
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func (t *InterlockMsgPkgTail) Encode() []byte {
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if len(t.Tail) == 0 {
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return make([]byte, 2)
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}
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return t.Tail
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}
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func (t *InterlockMsgPkgTail) Decode(buf []byte) error {
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if len(buf) < 2 {
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return fmt.Errorf("数据少于2个字节")
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}
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t.Tail = buf[len(buf)-2:]
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return nil
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}
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// 发送给联锁的采集数据
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type InterlockSendMsgPkg struct {
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Header *InterlockMsgPkgHeader // 包头
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Info []byte // 发给联锁的状态数据
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Tail *InterlockMsgPkgTail // 包尾
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}
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func (m *InterlockSendMsgPkg) Encode() []byte {
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var data []byte
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data = append(data, m.Header.Encode()...)
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data = append(data, m.Info...)
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data = append(data, m.Tail.Encode()...)
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return data
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}
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// 收到联锁发来的驱动数据
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type InterlockReceiveMsgPkg struct {
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toagent_len int32
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et_out_num int32
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tcc_output_len int32
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Header *InterlockMsgPkgHeader // 包头
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syncZone []byte // 同步区状态
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driveInfo []byte // 驱动数据
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tccInfo []byte // 应答器报文
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Tail *InterlockMsgPkgTail // 包尾
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}
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// ET_OUT_NUM、TOAGENTLEN、TCC_OUTPUT_LEN(应答器数量*131)的具体数值取决于数据配置。
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func NewInterlockReceiveMsgPkg(tlen, etLen, tccLen int32) *InterlockReceiveMsgPkg {
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return &InterlockReceiveMsgPkg{
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toagent_len: tlen,
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et_out_num: etLen,
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tcc_output_len: tccLen,
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Header: &InterlockMsgPkgHeader{},
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Tail: &InterlockMsgPkgTail{},
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}
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}
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func (t *InterlockReceiveMsgPkg) Decode(buf []byte) error {
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var preIndex, lastIndex int32 = 0, 6
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// 包头
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t.Header.Decode(buf[preIndex:lastIndex])
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// 同步区状态
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preIndex = lastIndex
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lastIndex = lastIndex + t.toagent_len
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t.syncZone = buf[preIndex:lastIndex]
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// 驱动数据
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preIndex = lastIndex
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lastIndex = lastIndex + t.et_out_num
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t.driveInfo = buf[preIndex:lastIndex]
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// 应答器报文
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preIndex = lastIndex
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lastIndex = lastIndex + t.tcc_output_len
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t.tccInfo = buf[preIndex:lastIndex]
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// 包尾
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t.Tail.Decode(buf)
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return nil
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}
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