// Copyright 2022 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package sync

// OnceFunc returns a function that invokes f only once. The returned function
// may be called concurrently.
//
// If f panics, the returned function will panic with the same value on every call.
func OnceFunc(f func()) func() {
	var (
		once  Once
		valid bool
		p     any

    def runner1 = Mock(BuildActionRunner)
    def runner2 = Mock(BuildActionRunner)
    def runner3 = Mock(BuildActionRunner)
    def runner = new ChainingBuildActionRunner([runner1, runner2, runner3])

    def "invokes runners until a result is produced"() {
        def action = Stub(BuildAction)
        def controller = Mock(BuildTreeLifecycleController)

        when:
        runner.run(action, controller)

        then:

   * @since 28.0
   */
  default <T> T newProxy(T target, Class<T> interfaceType, Duration timeout) {
    return newProxy(target, interfaceType, toNanosSaturated(timeout), TimeUnit.NANOSECONDS);
  }

  /**
   * Invokes a specified Callable, timing out after the specified time limit. If the target method
   * call finishes before the limit is reached, the return value or a wrapped exception is

package syscall

// A RawConn is a raw network connection.
type RawConn interface {
	// Control invokes f on the underlying connection's file
	// descriptor or handle.
	// The file descriptor fd is guaranteed to remain valid while
	// f executes but not after f returns.
	Control(f func(fd uintptr)) error

	// Read invokes f on the underlying connection's file
	// descriptor or handle; f is expected to try to read from the

		Pos:    pos,
		Func:   func_,
		Name:   name,
	}
	tree.nodes = append(tree.nodes, call)
	return r
}

// AllParents invokes do on each InlinedCall in the inlining call
// stack, from outermost to innermost.
//
// That is, if inlIndex corresponds to f inlining g inlining h,
// AllParents invokes do with the call for inlining g into f, and then
// inlining h into g.
func (tree *InlTree) AllParents(inlIndex int, do func(InlinedCall)) {

	// Sleep returns after the given duration (or more).
	Sleep(d time.Duration)

	// EventAfterDuration invokes the given EventFunc after the given duration (or more),
	// passing the time when the invocation was launched.
	EventAfterDuration(f EventFunc, d time.Duration)

	// EventAfterTime invokes the given EventFunc at the given time or later,
	// passing the time when the invocation was launched.

     *
     * <p>Note that not every method is known. Some methods may require an attempt invoke it in order for them to be discovered.</p>
     */
    boolean hasMethod(String name, @Nullable Object... arguments);

    /**
     * Invokes the method with the given name and arguments.
     */
    DynamicInvokeResult tryInvokeMethod(String name, @Nullable Object... arguments);

env GOCOVERDIR=data/badexit
! exec ./example.exe badexit
! stderr '^warning: GOCOVERDIR not set, no coverage data emitted'
go tool covdata percent -i=data/badexit
stdout  'coverage:.*[1-9][0-9.]+%'

# Program invokes panic.
env GOCOVERDIR=data/panic
! exec ./example.exe panic
! stderr '^warning: GOCOVERDIR not set, no coverage data emitted'
go tool covdata percent -i=data/panic
stdout  'coverage:.*[0-9.]+%'

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package poll

import (
	"errors"
	"internal/syscall/unix"
	"syscall"
)

// Fsync invokes SYS_FCNTL with SYS_FULLFSYNC because
// on OS X, SYS_FSYNC doesn't fully flush contents to disk.
// See Issue #26650 as well as the man page for fsync on OS X.
func (fd *FD) Fsync() error {
	if err := fd.incref(); err != nil {

   *     annotation type, rather than an interface
   */
  <T> T newProxy(T target, Class<T> interfaceType, long timeoutDuration, TimeUnit timeoutUnit);

  /**
   * Invokes a specified Callable, timing out after the specified time limit. If the target method
   * call finishes before the limit is reached, the return value or a wrapped exception is