package poll

import (
	"io"
	"syscall"
)

// SendFile wraps the TransmitFile call.
func SendFile(fd *FD, src syscall.Handle, n int64) (written int64, err error) {
	defer func() {
		TestHookDidSendFile(fd, 0, written, err, written > 0)
	}()
	if fd.kind == kindPipe {
		// TransmitFile does not work with pipes
		return 0, syscall.ESPIPE
	}

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

package net

import (
	"internal/poll"
	"io"
	"os"
	"syscall"
)

const supportsSendfile = true

// sendFile copies the contents of r to c using the TransmitFile
// system call to minimize copies.
//
// if handled == true, sendFile returns the number of bytes copied and any
// non-EOF error.
//
// if handled == false, sendFile performed no work.

			t.Error(err)
		}
	}()

	defer w.Close()

	go func() {
		_, err := io.Copy(c, r)
		errc2 <- err
	}()

	// Split write into 2 packets. That makes Windows TransmitFile
	// drop second packet.
	packet := make([]byte, 1)
	_, err = w.Write(packet)
	if err != nil {
		t.Fatal(err)
	}
	time.Sleep(100 * time.Millisecond)
	_, err = w.Write(packet)
	if err != nil {

	procAcceptEx                           = modmswsock.NewProc("AcceptEx")
	procGetAcceptExSockaddrs               = modmswsock.NewProc("GetAcceptExSockaddrs")
	procTransmitFile                       = modmswsock.NewProc("TransmitFile")
	procNetApiBufferFree                   = modnetapi32.NewProc("NetApiBufferFree")
	procNetGetJoinInformation              = modnetapi32.NewProc("NetGetJoinInformation")

//sys	VirtualLock(addr uintptr, length uintptr) (err error)
//sys	VirtualUnlock(addr uintptr, length uintptr) (err error)
//sys	TransmitFile(s Handle, handle Handle, bytesToWrite uint32, bytsPerSend uint32, overlapped *Overlapped, transmitFileBuf *TransmitFileBuffers, flags uint32) (err error) = mswsock.TransmitFile

//sys	TransmitFile(s Handle, handle Handle, bytesToWrite uint32, bytsPerSend uint32, overlapped *Overlapped, transmitFileBuf *TransmitFileBuffers, flags uint32) (err error) = mswsock.TransmitFile

	procGetAcceptExSockaddrs                                 = modmswsock.NewProc("GetAcceptExSockaddrs")
	procTransmitFile                                         = modmswsock.NewProc("TransmitFile")
	procNetApiBufferFree                                     = modnetapi32.NewProc("NetApiBufferFree")
	procNetGetJoinInformation                                = modnetapi32.NewProc("NetGetJoinInformation")

		{"Tokenprimarygroup.PrimaryGroup", Field, 0},
		{"Tokenuser", Type, 0},
		{"Tokenuser.User", Field, 0},
		{"TranslateAccountName", Func, 0},
		{"TranslateName", Func, 0},
		{"TransmitFile", Func, 0},
		{"TransmitFileBuffers", Type, 0},
		{"TransmitFileBuffers.Head", Field, 0},
		{"TransmitFileBuffers.HeadLength", Field, 0},
		{"TransmitFileBuffers.Tail", Field, 0},

pkg syscall (windows-386), func TranslateAccountName(string, uint32, uint32, int) (string, error)
pkg syscall (windows-386), func TranslateName(*uint16, uint32, uint32, *uint16, *uint32) error
pkg syscall (windows-386), func TransmitFile(Handle, Handle, uint32, uint32, *Overlapped, *TransmitFileBuffers, uint32) error
pkg syscall (windows-386), func UTF16ToString([]uint16) string
pkg syscall (windows-386), func UnmapViewOfFile(uintptr) error