package debug

import (
	"runtime"
	"slices"
	"time"
)

// GCStats collect information about recent garbage collections.
type GCStats struct {
	LastGC         time.Time       // time of last collection
	NumGC          int64           // number of garbage collections
	PauseTotal     time.Duration   // total pause for all collections
	Pause          []time.Duration // pause history, most recent first

type GarbageCollectorControllerConfiguration struct {
	// enables the generic garbage collector. MUST be synced with the
	// corresponding flag of the kube-apiserver. WARNING: the generic garbage
	// collector is an alpha feature.
	EnableGarbageCollector bool
	// concurrentGCSyncs is the number of garbage collector workers that are
	// allowed to sync concurrently.
	ConcurrentGCSyncs int32

}

// ImageGCPolicy is a policy for garbage collecting images. Policy defines an allowed band in
// which garbage collection will be run.
type ImageGCPolicy struct {
	// Any usage above this threshold will always trigger garbage collection.
	// This is the highest usage we will allow.
	HighThresholdPercent int

	// Any usage below this threshold will never trigger garbage collection.

limitations under the License.
*/

package container

import (
	"context"
	"fmt"
	"time"

	"k8s.io/klog/v2"
)

// GCPolicy specifies a policy for garbage collecting containers.
type GCPolicy struct {
	// Minimum age at which a container can be garbage collected, zero for no limit.
	MinAge time.Duration

	// Max number of dead containers any single pod (UID, container name) pair is

    def "does not schedule garbage collection check when GC strategy is unknown" () {
        when:
        new DefaultGarbageCollectionMonitor(GarbageCollectorMonitoringStrategy.UNKNOWN, scheduledExecutorService)

        then:
        0 * scheduledExecutorService.scheduleAtFixedRate(_, _, _, _)
    }

    def "heap stats defaults to empty given unknown garbage collector"() {
        given:

import java.util.concurrent.Future;
import java.util.concurrent.TimeoutException;

/**
 * Testing utilities relating to garbage collection finalization.
 *
 * <p>Use this class to test code triggered by finalization, that is, one of the following
 * actions taken by the java garbage collection system:
 *
 * <ul>
 *   <li>invoking the {@code finalize} methods of unreachable objects

	}
	s := string(b)

	memstats := new(runtime.MemStats)
	runtime.ReadMemStats(memstats)
	sys, numGC := memstats.Sys, memstats.NumGC

	// Generate 1,000 MB of garbage, only retaining 1 MB total.
	for i := 0; i < N; i++ {
		x = []byte(s)
	}

	// Verify that the garbage collector ran by seeing if we
	// allocated fewer than N*MB bytes from the system.
	runtime.ReadMemStats(memstats)
	sys1, numGC1 := memstats.Sys, memstats.NumGC

// [Ticker] would never be recovered by the garbage collector, and that
// if efficiency was a concern, code should use NewTicker instead and
// call [Ticker.Stop] when the ticker is no longer needed.
// As of Go 1.23, the garbage collector can recover unreferenced
// tickers, even if they haven't been stopped.
// The Stop method is no longer necessary to help the garbage collector.

	if o == nil {
		return
	}

	fs.Int32Var(&o.ConcurrentGCSyncs, "concurrent-gc-syncs", o.ConcurrentGCSyncs, "The number of garbage collector workers that are allowed to sync concurrently.")
	fs.BoolVar(&o.EnableGarbageCollector, "enable-garbage-collector", o.EnableGarbageCollector, "Enables the generic garbage collector. MUST be synced with the corresponding flag of the kube-apiserver.")
}

		inner = 1000
	}
	for i := 0; i < outer; i++ {
		wg.Add(1)
		go func() {
			defer wg.Done()
			var garbage []byte
			for j := 0; j < inner; j++ {
				_, err := doRequest(useSelect)
				_, ok := err.(myError)
				if !ok {
					panic(1)
				}
				garbage = makeByte()
			}
			_ = garbage
		}()
	}
	wg.Wait()
}

//go:noinline
func makeByte() []byte {
	return make([]byte, 1<<10)