"ios":       true,
	"js":        true,
	"linux":     true,
	"nacl":      true, // legacy; don't remove
	"netbsd":    true,
	"openbsd":   true,
	"plan9":     true,
	"solaris":   true,
	"wasip1":    true,
	"windows":   true,
	"zos":       true,
}

// unixOS is the set of GOOS values matched by the "unix" build tag.
// This is not used for filename matching.

// Copyright 2009 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.

//go:build !windows && !plan9 && !js && !wasip1

package syslog

import (
	"bufio"
	"fmt"
	"io"
	"net"
	"os"
	"path/filepath"
	"runtime"
	"sync"
	"testing"
	"time"
)

func runPktSyslog(c net.PacketConn, done chan<- string) {
	var buf [4096]byte

	runtime.GOOS == "android" || // #60967
	runtime.GOOS == "illumos" || // #65544
	// These platforms fundamentally can't be supported:
	runtime.GOOS == "js" || // #60971
	runtime.GOOS == "wasip1" || // #60971

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

package net

import (
	"context"
	"os"
	"sync"
	"syscall"
	"time"
)

// BUG(mikio): On JS, WASIP1 and Plan 9, methods and functions related
// to UnixConn and UnixListener are not implemented.

// BUG(mikio): On Windows, methods and functions related to UnixConn
// and UnixListener don't work for "unixgram" and "unixpacket".

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

// Fake networking for js/wasm and wasip1/wasm.
// It is intended to allow tests of other package to pass.

//go:build js || wasip1

package net

import (
	"context"
	"errors"
	"io"
	"os"
	"sync"
	"sync/atomic"
	"syscall"
	"time"
)

var (

// It deliberately constructs and uses an invalid pointer,
// so mark it as nocheckptr.
//
//go:nocheckptr
func testSetPanicOnFault(t *testing.T, addr uintptr, nfault *int) {
	if GOOS == "js" || GOOS == "wasip1" {
		t.Skip(GOOS + " does not support catching faults")
	}

	defer func() {
		if err := recover(); err != nil {
			*nfault++
		}
	}()

	// The read should fault, except that sometimes we hit

// run

//go:build !nacl && !js && !aix && !wasip1 && !gcflags_noopt && gc

// Copyright 2014 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 main

import (
	"bytes"
	"fmt"
	"io/ioutil"
	"log"
	"os"
	"os/exec"
	"path/filepath"
	"regexp"
	"runtime"
	"strconv"
	"strings"
)

const debug = false

	for err := range errc {
		t.Error(err)
	}
}

// Test that sendfile doesn't put a pipe into blocking mode.
func TestSendfilePipe(t *testing.T) {
	switch runtime.GOOS {
	case "plan9", "windows", "js", "wasip1":
		// These systems don't support deadlines on pipes.
		t.Skipf("skipping on %s", runtime.GOOS)
	}

	t.Parallel()

	ln := newLocalListener(t, "tcp")
	defer ln.Close()

	r, w, err := os.Pipe()

// Copyright 2015 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.

// Test broken pipes on Unix systems.
//
//go:build !plan9 && !js && !wasip1

package os_test

import (
	"bufio"
	"bytes"
	"fmt"
	"internal/testenv"
	"io"
	"io/fs"
	"os"
	"os/exec"
	"os/signal"
	"runtime"
	"strconv"
	"strings"
	"sync"
	"syscall"

}

// See issue #60276.
func TestCPUMetricsSleep(t *testing.T) {
	if runtime.GOOS == "wasip1" {
		// Since wasip1 busy-waits in the scheduler, there's no meaningful idle
		// time. This is accurately reflected in the metrics, but it means this
		// test is basically meaningless on this platform.
		t.Skip("wasip1 currently busy-waits in idle time; test not applicable")
	}

	names := []string{