// 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"
)

// 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 {
	sync.RWMutex
	pool map[string]bool
}

// NewStatusTable initializes and returns a new StatusTable object.
func NewStatusTable() *StatusTable {
	return &StatusTable{
		pool: make(map[string]bool),
	}
}

// Start sets value of given name to true in the pool.
func (p *StatusTable) Start(name string) {
	p.Lock()
	defer p.Unlock()

	p.pool[name] = true
}

// Stop sets value of given name to false in the pool.
func (p *StatusTable) Stop(name string) {
	p.Lock()
	defer p.Unlock()

	p.pool[name] = false
}

// IsRunning checks if value of given name is set to true in the pool.
func (p *StatusTable) IsRunning(name string) bool {
	p.RLock()
	defer p.RUnlock()

	return p.pool[name]
}