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Diffstat (limited to 'conf/storewatcher.go')
-rw-r--r-- | conf/storewatcher.go | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/conf/storewatcher.go b/conf/storewatcher.go new file mode 100644 index 00000000..4f9c2ef7 --- /dev/null +++ b/conf/storewatcher.go @@ -0,0 +1,38 @@ +/* SPDX-License-Identifier: MIT + * + * Copyright (C) 2019 WireGuard LLC. All Rights Reserved. + */ + +package conf + +import "reflect" + +type StoreCallback func() + +var storeCallbacks []StoreCallback + +func RegisterStoreChangeCallback(cb StoreCallback) { + startWatchingConfigDir() + cb() + storeCallbacks = append(storeCallbacks, cb) +} + +func UnregisterStoreChangeCallback(cb StoreCallback) { + //TODO: this function is ridiculous, doing slow iteration like this and reflection too. + + index := -1 + for i, e := range storeCallbacks { + if reflect.ValueOf(e).Pointer() == reflect.ValueOf(cb).Pointer() { + index = i + break + } + } + if index == -1 { + return + } + newList := storeCallbacks[0:index] + if index < len(storeCallbacks)-1 { + newList = append(newList, storeCallbacks[index+1:]...) + } + storeCallbacks = newList +} |