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package terraform
import (
"sync/atomic"
)
// stopHook is a private Hook implementation that Terraform uses to
// signal when to stop or cancel actions.
type stopHook struct {
stop uint32
}
func (h *stopHook) PreApply(*InstanceInfo, *InstanceState, *InstanceDiff) (HookAction, error) {
return h.hook()
}
func (h *stopHook) PostApply(*InstanceInfo, *InstanceState, error) (HookAction, error) {
return h.hook()
}
func (h *stopHook) PreDiff(*InstanceInfo, *InstanceState) (HookAction, error) {
return h.hook()
}
func (h *stopHook) PostDiff(*InstanceInfo, *InstanceDiff) (HookAction, error) {
return h.hook()
}
func (h *stopHook) PreProvisionResource(*InstanceInfo, *InstanceState) (HookAction, error) {
return h.hook()
}
func (h *stopHook) PostProvisionResource(*InstanceInfo, *InstanceState) (HookAction, error) {
return h.hook()
}
func (h *stopHook) PreProvision(*InstanceInfo, string) (HookAction, error) {
return h.hook()
}
func (h *stopHook) PostProvision(*InstanceInfo, string, error) (HookAction, error) {
return h.hook()
}
func (h *stopHook) ProvisionOutput(*InstanceInfo, string, string) {
}
func (h *stopHook) PreRefresh(*InstanceInfo, *InstanceState) (HookAction, error) {
return h.hook()
}
func (h *stopHook) PostRefresh(*InstanceInfo, *InstanceState) (HookAction, error) {
return h.hook()
}
func (h *stopHook) PreImportState(*InstanceInfo, string) (HookAction, error) {
return h.hook()
}
func (h *stopHook) PostImportState(*InstanceInfo, []*InstanceState) (HookAction, error) {
return h.hook()
}
func (h *stopHook) PostStateUpdate(*State) (HookAction, error) {
return h.hook()
}
func (h *stopHook) hook() (HookAction, error) {
if h.Stopped() {
return HookActionHalt, nil
}
return HookActionContinue, nil
}
// reset should be called within the lock context
func (h *stopHook) Reset() {
atomic.StoreUint32(&h.stop, 0)
}
func (h *stopHook) Stop() {
atomic.StoreUint32(&h.stop, 1)
}
func (h *stopHook) Stopped() bool {
return atomic.LoadUint32(&h.stop) == 1
}
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