Files
tasks/common/channel/shutdown_once.go
Alex ShtinandGitHub 8e8f1b0f7c Remove license header from every file (#7689)
## What changed?
<!-- Describe what has changed in this PR -->
Remove license header from every file. Because it is really hard to
follow in this PR here is the summary:
1. License header is removed from all `.go` and `.proto` files
:fireworks::fireworks:🎆.
2. `LICENSE` file in the root directory has only Temporal and Uber
copyrights.
3. 5 other `LICENSE` files added to the packages which have copyrights
different from Temporal and Uber: Datadog, Xargin, "Mat Ryer, Tyler
Bunnell and contributors".
4. `license_file` flag is removed from all code generation tools.
5. `copyright_file` flag is removed from `go:generate mockgen`
directive.
6. All copyright related targets are removed from `Makefile`.
7. Updated Temporal copyright year to 2025 everywhere.

## Why?
<!-- Tell your future self why have you made these changes -->
I double checked with legal department that it is not needed to have
license header in every file. One file per repo is enough. I put all
copyrights to the root `LICENSE` file and removed header from all other
files. Also updated tools and `Makefile`.
2025-05-01 18:50:21 -07:00

52 lines
926 B
Go

package channel
import (
"sync/atomic"
)
const (
shutdownOnceStatusOpen int32 = 0
shutdownOnceStatusClosed int32 = 1
)
type (
ShutdownOnce interface {
// Shutdown broadcast shutdown signal
Shutdown()
// IsShutdown return true if already shutdown
IsShutdown() bool
// Channel for shutdown notification
Channel() <-chan struct{}
}
ShutdownOnceImpl struct {
status int32
channel chan struct{}
}
)
func NewShutdownOnce() *ShutdownOnceImpl {
return &ShutdownOnceImpl{
status: shutdownOnceStatusOpen,
channel: make(chan struct{}),
}
}
func (c *ShutdownOnceImpl) Shutdown() {
if atomic.CompareAndSwapInt32(
&c.status,
shutdownOnceStatusOpen,
shutdownOnceStatusClosed,
) {
close(c.channel)
}
}
func (c *ShutdownOnceImpl) IsShutdown() bool {
return atomic.LoadInt32(&c.status) == shutdownOnceStatusClosed
}
func (c *ShutdownOnceImpl) Channel() <-chan struct{} {
return c.channel
}