act/pkg/common/context.go

46 lines
899 B
Go

package common
import (
"context"
"os"
"os/signal"
"syscall"
)
func createGracefulJobCancellationContext() (context.Context, func(), chan os.Signal) {
ctx := context.Background()
ctx, forceCancel := context.WithCancel(ctx)
cancelCtx, cancel := context.WithCancel(ctx)
ctx = WithJobCancelContext(ctx, cancelCtx)
// trap Ctrl+C and call cancel on the context
c := make(chan os.Signal, 1)
signal.Notify(c, os.Interrupt, syscall.SIGTERM)
go func() {
select {
case sig := <-c:
if sig == os.Interrupt {
cancel()
select {
case <-c:
forceCancel()
case <-ctx.Done():
}
} else {
forceCancel()
}
case <-ctx.Done():
}
}()
return ctx, func() {
signal.Stop(c)
forceCancel()
cancel()
}, c
}
func CreateGracefulJobCancellationContext() (context.Context, func()) {
ctx, cancel, _ := createGracefulJobCancellationContext()
return ctx, cancel
}