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arikawa/internal/moreatomic/bool.go
diamondburned 54cadd2f45 gateway: Refactor for a better concurrent API
This commit refactors the whole package gateway as well as utils/ws
(formerly utils/wsutil) and voice/voicegateway. The new refactor
utilizes a design pattern involving a concurrent loop and an arriving
event channel.

An additional change was made to the way gateway events are typed.
Before, pretty much any type will satisfy a gateway event type, since
the actual type was just interface{}. The new refactor defines a
concrete interface that events can implement:

    type Event interface {
        Op() OpCode
        EventType() EventType
    }

Using this interface, the user can easily add custom gateway events
independently of the library without relying on string maps. This adds a
lot of type safety into the library and makes type-switching on Event
types much more reasonable.

Gateway error callbacks are also almost entirely removed in favor of
custom gateway events. A catch-all can easily be added like this:

    s.AddHandler(func(err error) {
        log.Println("gateway error:, err")
    })
2021-12-14 13:49:34 -08:00

34 lines
546 B
Go

package moreatomic
import "sync/atomic"
type Bool struct {
val uint32
}
func (b *Bool) Get() bool {
return atomic.LoadUint32(&b.val) > 0
}
func (b *Bool) Set(val bool) {
var x = uint32(0)
if val {
x = 1
}
atomic.StoreUint32(&b.val, x)
}
func (b *Bool) SetTrue() {
atomic.StoreUint32(&b.val, 1)
}
func (b *Bool) SetFalse() {
atomic.StoreUint32(&b.val, 0)
}
// Acquire sets bool to true if it's false and returns true, otherwise returns
// false.
func (b *Bool) Acquire() bool {
return atomic.CompareAndSwapUint32(&b.val, 0, 1)
}