// requiring, at a minimum, a call to runtime.Callers.
type StackCounter = counter.StackCounter

// NewStack returns a new stack counter with the given name and depth.
//
// See "Counter Naming" in the package doc for a description of counter naming
// conventions.
func NewStack(name string, depth int) *StackCounter {
	return counter.NewStack(name, depth)
}

	api "go.opentelemetry.io/otel/metric"

	"istio.io/istio/pkg/log"
)

type counter struct {
	baseMetric
	c api.Float64Counter
	// precomputedAddOption is just a precomputation to avoid allocations on each record call
	precomputedAddOption []api.AddOption
}

var _ Metric = &counter{}

func newCounter(o options) *counter {
	c, err := meter().Float64Counter(o.name,
		api.WithDescription(o.description),

void IncrementCounter0(TFE_MonitoringCounter0* counter, int64_t delta = 1);
void IncrementCounter1(TFE_MonitoringCounter1* counter, const char* label,
                       int64_t delta = 1);

TEST(CAPI, MonitoringCellReader0) {
  auto counter_name = "test/counter0";
  auto* counter = CreateCounter0(counter_name);
  auto* reader = TFE_MonitoringNewCounterReader(counter_name);
  IncrementCounter0(counter);

import (
	"fmt"
	"math/bits"
)

// ResetCoverage sets all of the counters for each edge of the instrumented
// source code to 0.
func ResetCoverage() {
	cov := coverage()
	clear(cov)
}

// SnapshotCoverage copies the current counter values into coverageSnapshot,
// preserving them for later inspection. SnapshotCoverage also rounds each
// counter down to the nearest power of two. This lets the coordinator store

	if _, err := os.Stat(rootfsPath); os.IsNotExist(err) {
		rootfsPath = defaultRootfs
	}
	command := os.Args[1]
	switch command {
	case mountCmd:
		mountErr := mountInChroot(rootfsPath, os.Args[2:])
		if mountErr != nil {
			fmt.Fprintf(os.Stderr, "Mount failed: %v", mountErr)
			os.Exit(1)
		}
	default:
		fmt.Fprintf(os.Stderr, "Unknown command, must be %s", mountCmd)
		os.Exit(1)

	}
}

// Package counter implements a simple counter system for collecting
// totally public telemetry data.
//
// There are two kinds of counters, basic counters and stack counters.
// Basic counters are created by [New].
// Stack counters are created by [NewStack].
// Both are incremented by calling Inc().
//
// Basic counters are very cheap. Stack counters are more expensive, as they

	c.mu.Lock()
	defer c.mu.Unlock()
	counters := make([]*Counter, len(c.stacks))
	for i, s := range c.stacks {
		counters[i] = s.counter
	}
	return counters
}

func eq(a, b []uintptr) bool {
	if len(a) != len(b) {
		return false
	}
	for i := range a {
		if a[i] != b[i] {
			return false
		}
	}
	return true
}

// ReadStack reads the given stack counter.

// golang.org/x/telemetry/counter.Open.
func Open(telemetryDir string) {
	openedMu.Lock()
	defer openedMu.Unlock()
	if opened {
		panic("Open was called more than once")
	}
	telemetry.Default = telemetry.NewDir(telemetryDir)

	counter.Open()
	opened = true
}

// ReadCounter reads the given counter.
func ReadCounter(c *counter.Counter) (count uint64, _ error) {
	return ic.Read(c)
}

// check records the location and expected value for a counter.
func check(line, count uint32) {
	b := block{
		count,
		line,
	}
	counters[b] = true
}

// checkVal is a version of check that returns its extra argument,
// so it can be used in conditionals.
func checkVal(line, count uint32, val int) int {
	b := block{
		count,
		line,
	}
	counters[b] = true
	return val
}

var PASS = true

	x64 = uint64(x)<<32 | uint64(x)
	b[11][0] = x64
	b[11][1] = x64

	// Counters.
	if goarch.BigEndian {
		b[12][0] = uint64(counter+0)<<32 | uint64(counter+1)
		b[12][1] = uint64(counter+2)<<32 | uint64(counter+3)
	} else {
		b[12][0] = uint64(counter+0) | uint64(counter+1)<<32
		b[12][1] = uint64(counter+2) | uint64(counter+3)<<32
	}

	// Zeros.
	b[13][0] = 0
	b[13][1] = 0
	b[14][0] = 0