forgejo/modules/sync/status_pool.go
KN4CK3R 0e57ff7eee
Add generic set type (#21408)
This PR adds a generic set type to get rid of maps used as sets.

Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
2022-10-12 13:18:26 +08:00

58 lines
1.4 KiB
Go

// Copyright 2016 The Gogs Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
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
}