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package process
import (
"context"
"sync"
)
type ProcessContext struct {
wg *sync.WaitGroup // used to wait for components to shutdown
ctx context.Context // cancelled when Stop is called
shutdown context.CancelFunc // shut down Dendrite
}
func NewProcessContext() *ProcessContext {
ctx, shutdown := context.WithCancel(context.Background())
return &ProcessContext{
ctx: ctx,
shutdown: shutdown,
wg: &sync.WaitGroup{},
}
}
func (b *ProcessContext) Context() context.Context {
return context.WithValue(b.ctx, "scope", "process") // nolint:staticcheck
}
func (b *ProcessContext) ComponentStarted() {
b.wg.Add(1)
}
func (b *ProcessContext) ComponentFinished() {
b.wg.Done()
}
func (b *ProcessContext) ShutdownDendrite() {
b.shutdown()
}
func (b *ProcessContext) WaitForShutdown() <-chan struct{} {
return b.ctx.Done()
}
func (b *ProcessContext) WaitForComponentsToFinish() {
b.wg.Wait()
}
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