fix: update locks; bump: 0.1.10

LICENSE

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2019 jar3b
+Copyright (c) 2021 jar3b
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

close_handler.go

@@ -1,11 +1,17 @@
 package grawt
 
+import (
+	"sync"
+)
+
 type CloseHandler struct {
 	waiter      *Waiter
 	Quit        chan struct{}
 	active      bool
 	autoDone    bool
+	wgDone      bool
 	handlerFunc *func()
+	mu          *sync.Mutex
 }
 
 func (ch *CloseHandler) Halt(err error) {

go.mod

@@ -1,5 +1,5 @@
 module github.com/jar3b/grawt
 
-go 1.15
+go 1.16
 
-require github.com/sirupsen/logrus v1.7.0
+require github.com/sirupsen/logrus v1.8.1

go.sum

@@ -2,8 +2,8 @@ github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/sirupsen/logrus v1.7.0 h1:ShrD1U9pZB12TX0cVy0DtePoCH97K8EtX+mg7ZARUtM=
-github.com/sirupsen/logrus v1.7.0/go.mod h1:yWOB1SBYBC5VeMP7gHvWumXLIWorT60ONWic61uBYv0=
+github.com/sirupsen/logrus v1.8.1 h1:dJKuHgqk1NNQlqoA6BTlM1Wf9DOH3NBjQyu0h9+AZZE=
+github.com/sirupsen/logrus v1.8.1/go.mod h1:yWOB1SBYBC5VeMP7gHvWumXLIWorT60ONWic61uBYv0=
 github.com/stretchr/testify v1.2.2 h1:bSDNvY7ZPG5RlJ8otE/7V6gMiyenm9RtJ7IUVIAoJ1w=
 github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
 golang.org/x/sys v0.0.0-20191026070338-33540a1f6037 h1:YyJpGZS1sBuBCzLAR1VEpK193GlqGZbnPFnPV/5Rsb4=

waiter.go

@@ -13,7 +13,20 @@ type Waiter struct {
 	blockingMode  bool
 	waitGroup     sync.WaitGroup
 	closeHandlers []*CloseHandler
-	isHalting     bool
+	haltingFlag   bool
+	haltingMutex  sync.RWMutex
+}
+
+func (w *Waiter) isHalting() bool {
+	w.haltingMutex.RLock()
+	defer w.haltingMutex.RUnlock()
+	return w.haltingFlag
+}
+
+func (w *Waiter) setHalting(value bool) {
+	w.haltingMutex.Lock()
+	defer w.haltingMutex.Unlock()
+	w.haltingFlag = value
 }
 
 func (w *Waiter) addHandler(f *func(), autoDone bool) *CloseHandler {
@@ -22,7 +35,9 @@ func (w *Waiter) addHandler(f *func(), autoDone bool) *CloseHandler {
 		Quit:        make(chan struct{}, 1),
 		active:      true,
 		autoDone:    autoDone,
+		wgDone:      false,
 		handlerFunc: f,
+		mu:          &sync.Mutex{},
 	}
 
 	w.Lock()
@@ -34,18 +49,23 @@ func (w *Waiter) addHandler(f *func(), autoDone bool) *CloseHandler {
 }
 
 func (w *Waiter) terminateHandler(h *CloseHandler, forceWaitGroupDone bool) {
+	h.mu.Lock()
+	defer h.mu.Unlock()
 	if !h.active {
+		if !h.wgDone {
+			w.waitGroup.Done()
+		}
 		return
 	}
+
 	if h.handlerFunc != nil && *h.handlerFunc != nil {
 		(*h.handlerFunc)()
 	}
 
-	if h.active {
 	close(h.Quit)
-	}
 	if h.autoDone || forceWaitGroupDone {
 		w.waitGroup.Done()
+		h.wgDone = true
 	}
 
 	h.active = false
@@ -56,10 +76,10 @@ func (w *Waiter) AddCloseHandler(f func(), waitForChannel bool) *CloseHandler {
 }
 
 func (w *Waiter) Halt(err error) {
-	if w.isHalting {
+	if w.isHalting() {
 		return
 	}
-	w.isHalting = true
+	w.setHalting(true)
 
 	w.RLock()
 	for _, h := range w.closeHandlers {
@@ -80,13 +100,14 @@ func (w *Waiter) Halt(err error) {
 		}
 	}
 
-	w.isHalting = false
+	w.setHalting(false)
 }
 
 func (w *Waiter) Wait() {
 	w.blockingMode = true
 	log.Info("Waiting...")
 	w.waitGroup.Wait()
+	log.Info("Terminated")
 }
 
 func (w *Waiter) onSignal(sig os.Signal) {
@@ -101,6 +122,7 @@ func NewWaiter() *Waiter {
 		sync.WaitGroup{},
 		make([]*CloseHandler, 0),
 		false,
+		sync.RWMutex{},
 	}
 	sigs := make(chan os.Signal, 1)
 	signal.Notify(sigs, syscall.SIGINT, syscall.SIGTERM)