This is "synchronous" work, you are "synchronized" with the cashier/cook 👨‍🍳. You have to wait 🕙 and be there at the exact moment that the cashier/cook 👨‍🍳 finishes the burgers and gives them to you, or otherwise, someone else might take them.

<img src="/img/async/parallel-burgers/parallel-burgers-04.png" class="illustration">

Чтобы это понять, представьте такую картину:

### Конкурентные бургеры

<!-- The gender neutral cook emoji "🧑‍🍳" does not render well in browsers. In the meantime, I'm using a mix of male "👨‍🍳" and female "👩‍🍳" cooks. -->

Вы идёте со своей возлюбленной 😍 в фастфуд 🍔 и становитесь в очередь, в это время кассир 💁 принимает заказы у посетителей перед вами.

	"control_knobs":                        "\U0001f39b\ufe0f",
	"convenience_store":                    "\U0001f3ea",
	"cook":                                 "\U0001f9d1\u200d\U0001f373",
	"cook_islands":                         "\U0001f1e8\U0001f1f0",
	"cookie":                               "\U0001f36a",
	"cool":                                 "\U0001f192",
	"cop":                                  "\U0001f46e",

Andy Pan <******@****.***> 1699977411 +0800

	t := 0
	for i := 0; i < n; i++ {
		for j := 0; j < i; j++ {
			t += i ^ j
		}
	}
	return t
}

// Tests runtime/coverage.snapshot() directly. Note that if
// coverage is not enabled, the hook is designed to just return
// zero.
func TestCoverageSnapshot(t *testing.T) {
	C1 := Snapshot()
	thisFunctionOnlyCalledFromSnapshotTest(15)
	C2 := Snapshot()
	cond := "C1 > C2"
	val := C1 > C2

		if _, err := io.Copy(f, f); err != nil {
			t.Fatalf("failed to read from the file: %v", err)
		}

		if !hook.called || hook.written != 0 || hook.handled || hook.err != nil {
			t.Fatalf("poll.CopyFileRange should be called and return the EINVAL error, but got hook.called=%t, hook.err=%v", hook.called, hook.err)
		}

		// Rewind it.
		if _, err := f.Seek(0, io.SeekStart); err != nil {

standard version of this diagram, the top two boxes are squished together into "local
process" which (a) fails to make a few important distinctions, and (b) makes it look like
a single packet can go `input` -> "local process" -> `output`, which it cannot. Note also
that the `ingress` and `egress` hooks are special and mostly not available to us;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertThrows;
import static org.junit.jupiter.api.Assertions.assertTrue;

// It would be cool if there was a hook that I could use to set up a test environment.
// I want to set up a local/remote repositories for testing but I don't want to have
// to change them when I change the layout of the repositories. So I want to generate

		"/healthz/log",
		"/healthz/ping",
		"/healthz/poststarthook/delegate-post-start-hook",
		"/healthz/poststarthook/generic-apiserver-start-informers",
		"/healthz/poststarthook/max-in-flight-filter",
		"/healthz/poststarthook/storage-object-count-tracker-hook",
		"/healthz/poststarthook/wrapping-post-start-hook",
		"/healthz/wrapping-health",
		"/livez",
		"/livez/delegate-health",
		"/livez/log",

		or initialized to a constant string expression. -X will not work if the initializer makes
		a function call or refers to other variables.
		Note that before Go 1.5 this option took two separate arguments.
	-asan
		Link with C/C++ address sanitizer support.
	-aslr
		Enable ASLR for buildmode=c-shared on windows (default true).
	-bindnow