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DrtCreateIpv6UdpTransport

関数

IPv6 UDPによるDRTトランスポートを作成する。

DLLdrttransport.dll呼出規約winapi対応OSWindows 7 以降

シグネチャ

// drttransport.dll
#include <windows.h>

HRESULT DrtCreateIpv6UdpTransport(
    DRT_SCOPE scope,
    DWORD dwScopeId,
    DWORD dwLocalityThreshold,
    WORD* pwPort,
    void** phTransport
);

パラメーター

名前	型	方向	説明
scope	DRT_SCOPE	in	トランスポートの動作スコープ(グローバル/サイトローカル/リンクローカル)を表す列挙値。
dwScopeId	DWORD	in	複数スコープが存在する場合に対象を識別するスコープID。
dwLocalityThreshold	DWORD	in	近接性判定の閾値。エントリの優先処理に影響する。
pwPort	WORD*	inout	使用するUDPポート番号。0指定で自動割当てされ、実際の値が書き戻される。
phTransport	void**	out	生成されたトランスポートハンドルを受け取るポインタ。

戻り値の型: HRESULT

各言語での呼び出し定義

// drttransport.dll
#include <windows.h>

HRESULT DrtCreateIpv6UdpTransport(
    DRT_SCOPE scope,
    DWORD dwScopeId,
    DWORD dwLocalityThreshold,
    WORD* pwPort,
    void** phTransport
);

[DllImport("drttransport.dll", ExactSpelling = true)]
static extern int DrtCreateIpv6UdpTransport(
    int scope,   // DRT_SCOPE
    uint dwScopeId,   // DWORD
    uint dwLocalityThreshold,   // DWORD
    ref ushort pwPort,   // WORD* in/out
    IntPtr phTransport   // void** out
);

<DllImport("drttransport.dll", ExactSpelling:=True)>
Public Shared Function DrtCreateIpv6UdpTransport(
    scope As Integer,   ' DRT_SCOPE
    dwScopeId As UInteger,   ' DWORD
    dwLocalityThreshold As UInteger,   ' DWORD
    ByRef pwPort As UShort,   ' WORD* in/out
    phTransport As IntPtr   ' void** out
) As Integer
End Function

' scope : DRT_SCOPE
' dwScopeId : DWORD
' dwLocalityThreshold : DWORD
' pwPort : WORD* in/out
' phTransport : void** out
Declare PtrSafe Function DrtCreateIpv6UdpTransport Lib "drttransport" ( _
    ByVal scope As Long, _
    ByVal dwScopeId As Long, _
    ByVal dwLocalityThreshold As Long, _
    ByRef pwPort As Integer, _
    ByVal phTransport As LongPtr) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

DrtCreateIpv6UdpTransport = ctypes.windll.drttransport.DrtCreateIpv6UdpTransport
DrtCreateIpv6UdpTransport.restype = ctypes.c_int
DrtCreateIpv6UdpTransport.argtypes = [
    ctypes.c_int,  # scope : DRT_SCOPE
    wintypes.DWORD,  # dwScopeId : DWORD
    wintypes.DWORD,  # dwLocalityThreshold : DWORD
    ctypes.POINTER(ctypes.c_ushort),  # pwPort : WORD* in/out
    ctypes.c_void_p,  # phTransport : void** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('drttransport.dll')
DrtCreateIpv6UdpTransport = Fiddle::Function.new(
  lib['DrtCreateIpv6UdpTransport'],
  [
    Fiddle::TYPE_INT,  # scope : DRT_SCOPE
    -Fiddle::TYPE_INT,  # dwScopeId : DWORD
    -Fiddle::TYPE_INT,  # dwLocalityThreshold : DWORD
    Fiddle::TYPE_VOIDP,  # pwPort : WORD* in/out
    Fiddle::TYPE_VOIDP,  # phTransport : void** out
  ],
  Fiddle::TYPE_INT)

#[link(name = "drttransport")]
extern "system" {
    fn DrtCreateIpv6UdpTransport(
        scope: i32,  // DRT_SCOPE
        dwScopeId: u32,  // DWORD
        dwLocalityThreshold: u32,  // DWORD
        pwPort: *mut u16,  // WORD* in/out
        phTransport: *mut *mut ()  // void** out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("drttransport.dll")]
public static extern int DrtCreateIpv6UdpTransport(int scope, uint dwScopeId, uint dwLocalityThreshold, ref ushort pwPort, IntPtr phTransport);
"@
$api = Add-Type -MemberDefinition $sig -Name 'drttransport_DrtCreateIpv6UdpTransport' -Namespace Win32 -PassThru
# $api::DrtCreateIpv6UdpTransport(scope, dwScopeId, dwLocalityThreshold, pwPort, phTransport)

#uselib "drttransport.dll"
#func global DrtCreateIpv6UdpTransport "DrtCreateIpv6UdpTransport" sptr, sptr, sptr, sptr, sptr
; DrtCreateIpv6UdpTransport scope, dwScopeId, dwLocalityThreshold, varptr(pwPort), phTransport   ; 戻り値は stat
; scope : DRT_SCOPE -> "sptr"
; dwScopeId : DWORD -> "sptr"
; dwLocalityThreshold : DWORD -> "sptr"
; pwPort : WORD* in/out -> "sptr"
; phTransport : void** out -> "sptr"
; ※HSP3.7は #func のため戻り値はシステム変数 stat に格納されます。

出力引数:

#uselib "drttransport.dll"
#cfunc global DrtCreateIpv6UdpTransport "DrtCreateIpv6UdpTransport" int, int, int, var, sptr
; res = DrtCreateIpv6UdpTransport(scope, dwScopeId, dwLocalityThreshold, pwPort, phTransport)
; scope : DRT_SCOPE -> "int"
; dwScopeId : DWORD -> "int"
; dwLocalityThreshold : DWORD -> "int"
; pwPort : WORD* in/out -> "var"
; phTransport : void** out -> "sptr"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。#uselib "drttransport.dll"
#cfunc global DrtCreateIpv6UdpTransport "DrtCreateIpv6UdpTransport" int, int, int, sptr, sptr
; res = DrtCreateIpv6UdpTransport(scope, dwScopeId, dwLocalityThreshold, varptr(pwPort), phTransport)
; scope : DRT_SCOPE -> "int"
; dwScopeId : DWORD -> "int"
; dwLocalityThreshold : DWORD -> "int"
; pwPort : WORD* in/out -> "sptr"
; phTransport : void** out -> "sptr"
; ※出力/バッファ引数はポインタ方式(token=sptr / 呼び出しは varptr(変数))。

出力引数:

; HRESULT DrtCreateIpv6UdpTransport(DRT_SCOPE scope, DWORD dwScopeId, DWORD dwLocalityThreshold, WORD* pwPort, void** phTransport)
#uselib "drttransport.dll"
#cfunc global DrtCreateIpv6UdpTransport "DrtCreateIpv6UdpTransport" int, int, int, var, intptr
; res = DrtCreateIpv6UdpTransport(scope, dwScopeId, dwLocalityThreshold, pwPort, phTransport)
; scope : DRT_SCOPE -> "int"
; dwScopeId : DWORD -> "int"
; dwLocalityThreshold : DWORD -> "int"
; pwPort : WORD* in/out -> "var"
; phTransport : void** out -> "intptr"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。; HRESULT DrtCreateIpv6UdpTransport(DRT_SCOPE scope, DWORD dwScopeId, DWORD dwLocalityThreshold, WORD* pwPort, void** phTransport)
#uselib "drttransport.dll"
#cfunc global DrtCreateIpv6UdpTransport "DrtCreateIpv6UdpTransport" int, int, int, intptr, intptr
; res = DrtCreateIpv6UdpTransport(scope, dwScopeId, dwLocalityThreshold, varptr(pwPort), phTransport)
; scope : DRT_SCOPE -> "int"
; dwScopeId : DWORD -> "int"
; dwLocalityThreshold : DWORD -> "int"
; pwPort : WORD* in/out -> "intptr"
; phTransport : void** out -> "intptr"
; ※出力/バッファ引数はポインタ方式(token=intptr / 呼び出しは varptr(変数))。

import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	drttransport = windows.NewLazySystemDLL("drttransport.dll")
	procDrtCreateIpv6UdpTransport = drttransport.NewProc("DrtCreateIpv6UdpTransport")
)

// scope (DRT_SCOPE), dwScopeId (DWORD), dwLocalityThreshold (DWORD), pwPort (WORD* in/out), phTransport (void** out)
r1, _, err := procDrtCreateIpv6UdpTransport.Call(
	uintptr(scope),
	uintptr(dwScopeId),
	uintptr(dwLocalityThreshold),
	uintptr(pwPort),
	uintptr(phTransport),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function DrtCreateIpv6UdpTransport(
  scope: Integer;   // DRT_SCOPE
  dwScopeId: DWORD;   // DWORD
  dwLocalityThreshold: DWORD;   // DWORD
  pwPort: Pointer;   // WORD* in/out
  phTransport: Pointer   // void** out
): Integer; stdcall;
  external 'drttransport.dll' name 'DrtCreateIpv6UdpTransport';

result := DllCall("drttransport\DrtCreateIpv6UdpTransport"
    , "Int", scope   ; DRT_SCOPE
    , "UInt", dwScopeId   ; DWORD
    , "UInt", dwLocalityThreshold   ; DWORD
    , "Ptr", pwPort   ; WORD* in/out
    , "Ptr", phTransport   ; void** out
    , "Int")   ; return: HRESULT

●DrtCreateIpv6UdpTransport(scope, dwScopeId, dwLocalityThreshold, pwPort, phTransport) = DLL("drttransport.dll", "int DrtCreateIpv6UdpTransport(int, dword, dword, void*, void*)")
# 呼び出し: DrtCreateIpv6UdpTransport(scope, dwScopeId, dwLocalityThreshold, pwPort, phTransport)
# scope : DRT_SCOPE -> "int"
# dwScopeId : DWORD -> "dword"
# dwLocalityThreshold : DWORD -> "dword"
# pwPort : WORD* in/out -> "void*"
# phTransport : void** out -> "void*"
# なでしこ1は32bit・ANSI(Shift_JIS)。文字列=char*(ANSI)、ポインタ/ハンドル=void*(4byte)。