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

// Tests a G being created from within a syscall.
//
// Specifically, it tests a scenerio wherein a C
// thread is calling into Go, creating a goroutine in
// a syscall (in the tracer's model). The system is free
// to reuse thread IDs, so first a thread ID is used to
// call into Go, and then is used for a Go-created thread.
//

// license that can be found in the LICENSE file.

package syscall

import (
	"unsafe"
)

var (
	RawSyscallNoError = rawSyscallNoError
	ForceClone3       = &forceClone3
	Prlimit           = prlimit
)

const (
	Sys_GETEUID = sys_GETEUID
)

func Tcgetpgrp(fd int) (pgid int32, err error) {
	_, _, errno := Syscall6(SYS_IOCTL, uintptr(fd), uintptr(TIOCGPGRP), uintptr(unsafe.Pointer(&pgid)), 0, 0, 0)

// license that can be found in the LICENSE file.

// Tests syscall P stealing.

package main

import (
	"internal/trace"
	"internal/trace/event/go122"
	testgen "internal/trace/internal/testgen/go122"
)

func main() {
	testgen.Main(gen)
}

func gen(t *testgen.Trace) {
	g := t.Generation(1)

	// One goroutine enters a syscall, grabs a P, and starts running.
	b0 := g.Batch(trace.ThreadID(0), 0)

// license that can be found in the LICENSE file.

// Tests syscall P stealing at a generation boundary.

package main

import (
	"internal/trace"
	"internal/trace/event/go122"
	testgen "internal/trace/internal/testgen/go122"
)

func main() {
	testgen.Main(gen)
}

func gen(t *testgen.Trace) {
	g := t.Generation(1)

	// One goroutine is exiting with a syscall. It already
	// acquired a new P.

Carlos Amedee <******@****.***> 1715265901 -0400

// Copyright 2023 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.

// Tests a many interesting cases (network, syscalls, a little GC, busy goroutines,
// blocked goroutines, LockOSThread, pipes, and GOMAXPROCS).

//go:build ignore

package main

import (
	"log"
	"net"
	"os"
	"runtime"
	"runtime/trace"
	"sync"
	"time"
)

	}
	if from == trace.GoSyscall && to != trace.GoRunning {
		// Exiting blocked syscall.
		gs.syscallEnd(ev.Time(), true, ctx)
		gs.blockedSyscallEnd(ev.Time(), ev.Stack(), ctx)
	} else if from == trace.GoSyscall {
		// Check if we're exiting a syscall in a non-blocking way.
		gs.syscallEnd(ev.Time(), false, ctx)
	}

	// Handle syscalls.
	if to == trace.GoSyscall {
		start := ev.Time()

		// Goroutine exited a blocked syscall.
		gs.blockedSyscallEnd(ev.Time(), ev.Stack(), ctx)
	}

	// Handle syscalls.
	if to == trace.GoSyscall && ev.Proc() != trace.NoProc {
		start := ev.Time()
		if from == trace.GoUndetermined {
			// Back-date the event to the start of the trace.
			start = ctx.startTime
		}
		// Write down that we've entered a syscall. Note: we might have no P here

	entersyscall()
	libcCall(unsafe.Pointer(abi.FuncPCABI0(syscallX)), unsafe.Pointer(&fn))
	exitsyscall()
	return
}
func syscallX()

// golang.org/x/sys linknames syscall.syscall6
// (in addition to standard package syscall).
// Do not remove or change the type signature.
//
//go:linkname syscall_syscall6 syscall.syscall6
//go:nosplit
//go:cgo_unsafe_args

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

package os_test

import (
	"fmt"
	"internal/syscall/windows"
	"internal/testenv"
	"os"
	"path/filepath"
	"strings"
	"syscall"
	"testing"
)

func TestAddExtendedPrefix(t *testing.T) {
	// Test addExtendedPrefix instead of fixLongPath so the path manipulation code