From 72d6b538f7c22102898082ad56144127d3d27b83 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Mike=20Schw=C3=B6rer?= <pubgit@mikescher.com>
Date: Sun, 29 Jan 2023 22:28:08 +0100
Subject: [PATCH] v0.0.71

---
 syncext/atomic.go | 75 +++++++++++++++++++++++++----------------------
 1 file changed, 40 insertions(+), 35 deletions(-)

diff --git a/syncext/atomic.go b/syncext/atomic.go
index d1e4ce6..e9228f2 100644
--- a/syncext/atomic.go
+++ b/syncext/atomic.go
@@ -2,58 +2,50 @@ package syncext
 
 import (
 	"context"
-	"sync/atomic"
+	"gogs.mikescher.com/BlackForestBytes/goext/langext"
+	"sync"
 	"time"
 )
 
 type AtomicBool struct {
-	v      int32
-	waiter chan bool // unbuffered
+	v        bool
+	listener map[string]chan bool
+	lock     sync.Mutex
 }
 
 func NewAtomicBool(value bool) *AtomicBool {
-	if value {
-		return &AtomicBool{v: 1, waiter: make(chan bool)}
-	} else {
-		return &AtomicBool{v: 0, waiter: make(chan bool)}
+	return &AtomicBool{
+		v:        value,
+		listener: make(map[string]chan bool),
+		lock:     sync.Mutex{},
 	}
 }
 
 func (a *AtomicBool) Get() bool {
-	return atomic.LoadInt32(&a.v) == 1
+	a.lock.Lock()
+	defer a.lock.Unlock()
+	return a.v
 }
 
 func (a *AtomicBool) Set(value bool) {
-	if value {
-		atomic.StoreInt32(&a.v, 1)
-	} else {
-		atomic.StoreInt32(&a.v, 0)
-	}
+	a.lock.Lock()
+	defer a.lock.Unlock()
 
-	select {
-	case a.waiter <- value:
-		// message sent
-	default:
-		// no receiver on channel
+	a.v = value
+
+	for k, v := range a.listener {
+		select {
+		case v <- value:
+			// message sent
+		default:
+			// no receiver on channel
+			delete(a.listener, k)
+		}
 	}
 }
 
 func (a *AtomicBool) Wait(waitFor bool) {
-	if a.Get() == waitFor {
-		return
-	}
-
-	for {
-		if v, ok := ReadChannelWithTimeout(a.waiter, 128*time.Millisecond); ok {
-			if v == waitFor {
-				return
-			}
-		} else {
-			if a.Get() == waitFor {
-				return
-			}
-		}
-	}
+	_ = a.WaitWithContext(context.Background(), waitFor)
 }
 
 func (a *AtomicBool) WaitWithTimeout(timeout time.Duration, waitFor bool) error {
@@ -71,12 +63,25 @@ func (a *AtomicBool) WaitWithContext(ctx context.Context, waitFor bool) error {
 		return nil
 	}
 
+	uuid, _ := langext.NewHexUUID()
+
+	waitchan := make(chan bool)
+
+	a.lock.Lock()
+	a.listener[uuid] = waitchan
+	a.lock.Unlock()
+	defer func() {
+		a.lock.Lock()
+		delete(a.listener, uuid)
+		a.lock.Unlock()
+	}()
+
 	for {
 		if err := ctx.Err(); err != nil {
 			return err
 		}
 
-		timeOut := 128 * time.Millisecond
+		timeOut := 1024 * time.Millisecond
 
 		if dl, ok := ctx.Deadline(); ok {
 			timeOutMax := dl.Sub(time.Now())
@@ -87,7 +92,7 @@ func (a *AtomicBool) WaitWithContext(ctx context.Context, waitFor bool) error {
 			}
 		}
 
-		if v, ok := ReadChannelWithTimeout(a.waiter, timeOut); ok {
+		if v, ok := ReadChannelWithTimeout(waitchan, timeOut); ok {
 			if v == waitFor {
 				return nil
 			}