// Copyright (C) 2023  Luke Shumaker <lukeshu@lukeshu.com>
//
// SPDX-License-Identifier: GPL-2.0-or-later

package typedsync

import (
	"sync"
)

// Cond is a type-safe equivalent of the standard library's sync.Cond.
//
// See the [sync.Cond documentation] for full details.
//
// [sync.Cond documentation]: https://pkg.go.dev/sync#Cond
type Cond[T Locker] struct {
	L     T
	inner sync.Cond
}

func NewCond[T Locker](l T) *Cond[T] {
	return &Cond[T]{L: l}
}

func (c *Cond[T]) Broadcast() {
	c.inner.L = c.L
	c.inner.Broadcast()
}

func (c *Cond[T]) Signal() {
	c.inner.L = c.L
	c.inner.Signal()
}

func (c *Cond[T]) Wait() {
	c.inner.L = c.L
	c.inner.Wait()
}