Adding upstream version 9.0.3.

Signed-off-by: Daniel Baumann <daniel@debian.org>

1 files changed, 57 insertions, 0 deletions

diff --git a/modules/sync/status_pool.go b/modules/sync/status_pool.go
new file mode 100644
index 0000000..6f075d5
--- /dev/null
+++ b/modules/sync/status_pool.go
@@ -0,0 +1,57 @@
+// Copyright 2016 The Gogs Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package sync
+
+import (
+	"sync"
+
+	"code.gitea.io/gitea/modules/container"
+)
+
+// StatusTable is a table maintains true/false values.
+//
+// This table is particularly useful for un/marking and checking values
+// in different goroutines.
+type StatusTable struct {
+	lock sync.RWMutex
+	pool container.Set[string]
+}
+
+// NewStatusTable initializes and returns a new StatusTable object.
+func NewStatusTable() *StatusTable {
+	return &StatusTable{
+		pool: make(container.Set[string]),
+	}
+}
+
+// StartIfNotRunning sets value of given name to true if not already in pool.
+// Returns whether set value was set to true
+func (p *StatusTable) StartIfNotRunning(name string) bool {
+	p.lock.Lock()
+	added := p.pool.Add(name)
+	p.lock.Unlock()
+	return added
+}
+
+// Start sets value of given name to true in the pool.
+func (p *StatusTable) Start(name string) {
+	p.lock.Lock()
+	p.pool.Add(name)
+	p.lock.Unlock()
+}
+
+// Stop sets value of given name to false in the pool.
+func (p *StatusTable) Stop(name string) {
+	p.lock.Lock()
+	p.pool.Remove(name)
+	p.lock.Unlock()
+}
+
+// IsRunning checks if value of given name is set to true in the pool.
+func (p *StatusTable) IsRunning(name string) bool {
+	p.lock.RLock()
+	exists := p.pool.Contains(name)
+	p.lock.RUnlock()
+	return exists
+}