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fix data race (#1851)

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Caleb Doxsey 2021-02-02 16:19:33 -07:00 • committed by GitHub
parent 74ac23c980
commit 899076a06a
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1 changed files with 10 additions and 0 deletions
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10
config/config_source.go
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@ -44,6 +44,7 @@ type Source interface {
// A StaticSource always returns the same config. Useful for testing.
type StaticSource struct {
mu sync.Mutex
cfg *Config
lis []ChangeListener
}
@ -55,11 +56,17 @@ func NewStaticSource(cfg *Config) *StaticSource {
// GetConfig gets the config.
func (src *StaticSource) GetConfig() *Config {
src.mu.Lock()
defer src.mu.Unlock()
return src.cfg
}
// SetConfig sets the config.
func (src *StaticSource) SetConfig(cfg *Config) {
src.mu.Lock()
defer src.mu.Unlock()
src.cfg = cfg
for _, li := range src.lis {
li(cfg)
@ -68,6 +75,9 @@ func (src *StaticSource) SetConfig(cfg *Config) {
// OnConfigChange is ignored for the StaticSource.
func (src *StaticSource) OnConfigChange(li ChangeListener) {
src.mu.Lock()
defer src.mu.Unlock()
src.lis = append(src.lis, li)
}