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Merge stopcontrol + breaker packages (#1485)
* Merge stopcontrol + breaker packages * lint
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,22 +1,35 @@ | ||
| package stopcontrol | ||
|
|
||
| import "sync/atomic" | ||
| import ( | ||
| "sync" | ||
| "sync/atomic" | ||
| ) | ||
|
|
||
| // StopControl allows for any instance to thread-safely check if the status is stopping or not | ||
| type StopControl struct { | ||
| stop *int32 | ||
| stop *int32 | ||
| stopChan chan interface{} | ||
| closer sync.Once | ||
| } | ||
|
|
||
| func New() *StopControl { | ||
| return &StopControl{ | ||
| stop: new(int32), | ||
| stop: new(int32), | ||
| stopChan: make(chan interface{}), | ||
| } | ||
| } | ||
|
|
||
| func (s *StopControl) Stop() { | ||
| atomic.StoreInt32(s.stop, 1) | ||
| s.closer.Do(func() { | ||
| atomic.StoreInt32(s.stop, 1) | ||
| close(s.stopChan) | ||
| }) | ||
| } | ||
|
|
||
| func (s *StopControl) IsStopping() bool { | ||
| return atomic.LoadInt32(s.stop) == 1 | ||
| } | ||
|
|
||
| func (s *StopControl) Done() chan interface{} { | ||
| return s.stopChan | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,60 @@ | ||
| package stopcontrol | ||
|
|
||
| import ( | ||
| "testing" | ||
| "time" | ||
| ) | ||
|
|
||
| func TestStopControl_Stop(t *testing.T) { | ||
| sc := New() | ||
| sc.Stop() | ||
|
|
||
| if !sc.IsStopping() { | ||
| t.Error("Expected IsStopping to return true after Stop, but got false") | ||
| } | ||
|
|
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| // Ensure it's safe to call Stop multiple times | ||
| func() { | ||
| defer func() { | ||
| if r := recover(); r != nil { | ||
| t.Error("Expected no panic when calling Stop multiple times") | ||
| } | ||
| }() | ||
| sc.Stop() | ||
| }() | ||
| } | ||
|
|
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| func TestStopControl_IsStopping(t *testing.T) { | ||
| sc := New() | ||
|
|
||
| if sc.IsStopping() { | ||
| t.Error("Expected IsStopping to return false initially, but got true") | ||
| } | ||
|
|
||
| sc.Stop() | ||
|
|
||
| if !sc.IsStopping() { | ||
| t.Error("Expected IsStopping to return true after Stop, but got false") | ||
| } | ||
| } | ||
|
|
||
| func TestStopControl_Done(t *testing.T) { | ||
| sc := New() | ||
|
|
||
| select { | ||
| case <-sc.Done(): | ||
| t.Error("Expected Done channel to be blocking initially") | ||
| case <-time.After(50 * time.Millisecond): // Allow a small delay to check the non-blocking state | ||
| } | ||
|
|
||
| sc.Stop() | ||
|
|
||
| select { | ||
| case _, ok := <-sc.Done(): | ||
| if ok { | ||
| t.Error("Expected Done channel to be closed after Stop") | ||
| } | ||
| case <-time.After(50 * time.Millisecond): | ||
| t.Error("Expected Done channel to be closed immediately after Stop") | ||
| } | ||
| } |
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