77 lines
2.1 KiB
Go
77 lines
2.1 KiB
Go
package tcpreader
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import (
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"bufio"
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"encoding/json"
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"fmt"
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"net"
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"sync"
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"time"
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"FireLeave_tool/logger"
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)
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// TemperatureResult 温度读取程序返回的数据
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type TemperatureResult struct {
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Tmp float64 `json:"tmp"`
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}
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// TCPClient TCP 客户端
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type TCPClient struct {
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addr string // 地址，例如 "127.0.0.1:59881"
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deviceUUID string // 关联的 DeviceUUID
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conn net.Conn
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mu sync.Mutex
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}
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// NewTCPClient 创建新的 TCP 客户端
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func NewTCPClient(deviceUUID string, tempPort int) (*TCPClient, error) {
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addr := fmt.Sprintf("127.0.0.1:%d", tempPort)
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conn, err := net.DialTimeout("tcp", addr, 5*time.Second)
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if err != nil {
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logger.Logger.Printf("Connect TCP server %s failed (DeviceUUID=%s): %v", addr, deviceUUID, err)
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return nil, fmt.Errorf("connect TCP server %s failed: %v", addr, err)
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}
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client := &TCPClient{
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addr: addr,
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deviceUUID: deviceUUID,
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conn: conn,
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}
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logger.Logger.Printf("TCP client created successfully: DeviceUUID=%s, Address=%s", deviceUUID, addr)
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return client, nil
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}
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// ReadTemperatureResult 读取温度程序数据
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func (tc *TCPClient) ReadTemperatureResult() (TemperatureResult, error) {
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tc.mu.Lock()
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defer tc.mu.Unlock()
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tc.conn.SetReadDeadline(time.Now().Add(10 * time.Second))
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reader := bufio.NewReader(tc.conn)
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message, err := reader.ReadString('\n')
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if err != nil {
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logger.Logger.Printf("Read temperature data failed (DeviceUUID=%s, Address=%s): %v", tc.deviceUUID, tc.addr, err)
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return TemperatureResult{}, fmt.Errorf("read temperature data failed: %v", err)
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}
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var result TemperatureResult
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if err := json.Unmarshal([]byte(message), &result); err != nil {
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logger.Logger.Printf("Parse temperature data failed (DeviceUUID=%s, Address=%s): %v", tc.deviceUUID, tc.addr, err)
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return TemperatureResult{}, fmt.Errorf("parse temperature data failed: %v", err)
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}
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return result, nil
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}
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// Close 关闭 TCP 连接
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func (tc *TCPClient) Close() {
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tc.mu.Lock()
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defer tc.mu.Unlock()
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if tc.conn != nil {
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tc.conn.Close()
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logger.Logger.Printf("Close TCP connection: DeviceUUID=%s, Address=%s", tc.deviceUUID, tc.addr)
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}
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}
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