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设备影子添加互斥锁

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Signed-off-by: PandaX <18610165312@163.com>
This commit is contained in:
PandaX
2025-04-14 02:22:09 +00:00
committed by Gitee
parent a7aa81781a
commit eec9f3f004
1 changed files with 4 additions and 0 deletions
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4
pkg/shadow/shadow.go
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@@ -38,6 +38,7 @@ type DeviceShadow interface {
type deviceShadow struct { type deviceShadow struct {
m *sync.Map m *sync.Map
ticker *time.Ticker ticker *time.Ticker
mutex *sync.RWMutex // 添加互斥锁
handlerFunc OnlineChangeCallback //上下线执行的回调函数 handlerFunc OnlineChangeCallback //上下线执行的回调函数
ttl int ttl int
} }
@@ -50,6 +51,7 @@ func init() {
ticker: time.NewTicker(time.Second), ticker: time.NewTicker(time.Second),
ttl: 3600, // 默认1小时 ttl: 3600, // 默认1小时
handlerFunc: deviceHandler, handlerFunc: deviceHandler,
mutex: &sync.RWMutex{},
} }
go shadow.checkOnOff() go shadow.checkOnOff()
DeviceShadowInstance = shadow DeviceShadowInstance = shadow
@@ -79,6 +81,8 @@ func (d *deviceShadow) SetDeviceTTL(ttl int) {
} }
func (d *deviceShadow) GetDevice(deviceName string) (device Device, err error) { func (d *deviceShadow) GetDevice(deviceName string) (device Device, err error) {
d.mutex.RLock()
defer d.mutex.RUnlock()
if deviceAny, ok := d.m.Load(deviceName); ok { if deviceAny, ok := d.m.Load(deviceName); ok {
return deviceAny.(Device), nil return deviceAny.(Device), nil
} else { } else {