ホーム › System.Diagnostics.Debug › GetThreadWaitChain

GetThreadWaitChain

関数

指定スレッドの待機チェーンを取得しデッドロックを分析する。

DLLADVAPI32.dll呼出規約winapiSetLastErrorあり対応OSWindows Vista 以降

シグネチャ

// ADVAPI32.dll
#include <windows.h>

BOOL GetThreadWaitChain(
    void* WctHandle,
    UINT_PTR Context,   // optional
    WAIT_CHAIN_THREAD_OPTIONS Flags,
    DWORD ThreadId,
    DWORD* NodeCount,
    WAITCHAIN_NODE_INFO* NodeInfoArray,
    BOOL* IsCycle
);

パラメーター

名前	型	方向
WctHandle	void*	in
Context	UINT_PTR	inoptional
Flags	WAIT_CHAIN_THREAD_OPTIONS	in
ThreadId	DWORD	in
NodeCount	DWORD*	inout
NodeInfoArray	WAITCHAIN_NODE_INFO*	out
IsCycle	BOOL*	out

戻り値の型: BOOL

各言語での呼び出し定義

// ADVAPI32.dll
#include <windows.h>

BOOL GetThreadWaitChain(
    void* WctHandle,
    UINT_PTR Context,   // optional
    WAIT_CHAIN_THREAD_OPTIONS Flags,
    DWORD ThreadId,
    DWORD* NodeCount,
    WAITCHAIN_NODE_INFO* NodeInfoArray,
    BOOL* IsCycle
);

[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("ADVAPI32.dll", SetLastError = true, ExactSpelling = true)]
static extern bool GetThreadWaitChain(
    IntPtr WctHandle,   // void*
    UIntPtr Context,   // UINT_PTR optional
    uint Flags,   // WAIT_CHAIN_THREAD_OPTIONS
    uint ThreadId,   // DWORD
    ref uint NodeCount,   // DWORD* in/out
    IntPtr NodeInfoArray,   // WAITCHAIN_NODE_INFO* out
    out int IsCycle   // BOOL* out
);

<DllImport("ADVAPI32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function GetThreadWaitChain(
    WctHandle As IntPtr,   ' void*
    Context As UIntPtr,   ' UINT_PTR optional
    Flags As UInteger,   ' WAIT_CHAIN_THREAD_OPTIONS
    ThreadId As UInteger,   ' DWORD
    ByRef NodeCount As UInteger,   ' DWORD* in/out
    NodeInfoArray As IntPtr,   ' WAITCHAIN_NODE_INFO* out
    <Out> ByRef IsCycle As Integer   ' BOOL* out
) As Boolean
End Function

' WctHandle : void*
' Context : UINT_PTR optional
' Flags : WAIT_CHAIN_THREAD_OPTIONS
' ThreadId : DWORD
' NodeCount : DWORD* in/out
' NodeInfoArray : WAITCHAIN_NODE_INFO* out
' IsCycle : BOOL* out
Declare PtrSafe Function GetThreadWaitChain Lib "advapi32" ( _
    ByVal WctHandle As LongPtr, _
    ByVal Context As LongPtr, _
    ByVal Flags As Long, _
    ByVal ThreadId As Long, _
    ByRef NodeCount As Long, _
    ByVal NodeInfoArray As LongPtr, _
    ByRef IsCycle As Long) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

GetThreadWaitChain = ctypes.windll.advapi32.GetThreadWaitChain
GetThreadWaitChain.restype = wintypes.BOOL
GetThreadWaitChain.argtypes = [
    ctypes.POINTER(None),  # WctHandle : void*
    ctypes.c_size_t,  # Context : UINT_PTR optional
    wintypes.DWORD,  # Flags : WAIT_CHAIN_THREAD_OPTIONS
    wintypes.DWORD,  # ThreadId : DWORD
    ctypes.POINTER(wintypes.DWORD),  # NodeCount : DWORD* in/out
    ctypes.c_void_p,  # NodeInfoArray : WAITCHAIN_NODE_INFO* out
    ctypes.c_void_p,  # IsCycle : BOOL* out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ADVAPI32.dll')
GetThreadWaitChain = Fiddle::Function.new(
  lib['GetThreadWaitChain'],
  [
    Fiddle::TYPE_VOIDP,  # WctHandle : void*
    Fiddle::TYPE_UINTPTR_T,  # Context : UINT_PTR optional
    -Fiddle::TYPE_INT,  # Flags : WAIT_CHAIN_THREAD_OPTIONS
    -Fiddle::TYPE_INT,  # ThreadId : DWORD
    Fiddle::TYPE_VOIDP,  # NodeCount : DWORD* in/out
    Fiddle::TYPE_VOIDP,  # NodeInfoArray : WAITCHAIN_NODE_INFO* out
    Fiddle::TYPE_VOIDP,  # IsCycle : BOOL* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "advapi32")]
extern "system" {
    fn GetThreadWaitChain(
        WctHandle: *mut (),  // void*
        Context: usize,  // UINT_PTR optional
        Flags: u32,  // WAIT_CHAIN_THREAD_OPTIONS
        ThreadId: u32,  // DWORD
        NodeCount: *mut u32,  // DWORD* in/out
        NodeInfoArray: *mut WAITCHAIN_NODE_INFO,  // WAITCHAIN_NODE_INFO* out
        IsCycle: *mut i32  // BOOL* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("ADVAPI32.dll", SetLastError = true)]
public static extern bool GetThreadWaitChain(IntPtr WctHandle, UIntPtr Context, uint Flags, uint ThreadId, ref uint NodeCount, IntPtr NodeInfoArray, out int IsCycle);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ADVAPI32_GetThreadWaitChain' -Namespace Win32 -PassThru
# $api::GetThreadWaitChain(WctHandle, Context, Flags, ThreadId, NodeCount, NodeInfoArray, IsCycle)

#uselib "ADVAPI32.dll"
#func global GetThreadWaitChain "GetThreadWaitChain" sptr, sptr, sptr, sptr, sptr, sptr, sptr
; GetThreadWaitChain WctHandle, Context, Flags, ThreadId, varptr(NodeCount), varptr(NodeInfoArray), IsCycle   ; 戻り値は stat
; WctHandle : void* -> "sptr"
; Context : UINT_PTR optional -> "sptr"
; Flags : WAIT_CHAIN_THREAD_OPTIONS -> "sptr"
; ThreadId : DWORD -> "sptr"
; NodeCount : DWORD* in/out -> "sptr"
; NodeInfoArray : WAITCHAIN_NODE_INFO* out -> "sptr"
; IsCycle : BOOL* 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 "ADVAPI32.dll"
#cfunc global GetThreadWaitChain "GetThreadWaitChain" sptr, sptr, int, int, var, var, int
; res = GetThreadWaitChain(WctHandle, Context, Flags, ThreadId, NodeCount, NodeInfoArray, IsCycle)
; WctHandle : void* -> "sptr"
; Context : UINT_PTR optional -> "sptr"
; Flags : WAIT_CHAIN_THREAD_OPTIONS -> "int"
; ThreadId : DWORD -> "int"
; NodeCount : DWORD* in/out -> "var"
; NodeInfoArray : WAITCHAIN_NODE_INFO* out -> "var"
; IsCycle : BOOL* out -> "int"
; ※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 "ADVAPI32.dll"
#cfunc global GetThreadWaitChain "GetThreadWaitChain" sptr, sptr, int, int, sptr, sptr, int
; res = GetThreadWaitChain(WctHandle, Context, Flags, ThreadId, varptr(NodeCount), varptr(NodeInfoArray), IsCycle)
; WctHandle : void* -> "sptr"
; Context : UINT_PTR optional -> "sptr"
; Flags : WAIT_CHAIN_THREAD_OPTIONS -> "int"
; ThreadId : DWORD -> "int"
; NodeCount : DWORD* in/out -> "sptr"
; NodeInfoArray : WAITCHAIN_NODE_INFO* out -> "sptr"
; IsCycle : BOOL* out -> "int"
; ※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:

; BOOL GetThreadWaitChain(void* WctHandle, UINT_PTR Context, WAIT_CHAIN_THREAD_OPTIONS Flags, DWORD ThreadId, DWORD* NodeCount, WAITCHAIN_NODE_INFO* NodeInfoArray, BOOL* IsCycle)
#uselib "ADVAPI32.dll"
#cfunc global GetThreadWaitChain "GetThreadWaitChain" intptr, intptr, int, int, var, var, int
; res = GetThreadWaitChain(WctHandle, Context, Flags, ThreadId, NodeCount, NodeInfoArray, IsCycle)
; WctHandle : void* -> "intptr"
; Context : UINT_PTR optional -> "intptr"
; Flags : WAIT_CHAIN_THREAD_OPTIONS -> "int"
; ThreadId : DWORD -> "int"
; NodeCount : DWORD* in/out -> "var"
; NodeInfoArray : WAITCHAIN_NODE_INFO* out -> "var"
; IsCycle : BOOL* out -> "int"
; ※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。; BOOL GetThreadWaitChain(void* WctHandle, UINT_PTR Context, WAIT_CHAIN_THREAD_OPTIONS Flags, DWORD ThreadId, DWORD* NodeCount, WAITCHAIN_NODE_INFO* NodeInfoArray, BOOL* IsCycle)
#uselib "ADVAPI32.dll"
#cfunc global GetThreadWaitChain "GetThreadWaitChain" intptr, intptr, int, int, intptr, intptr, int
; res = GetThreadWaitChain(WctHandle, Context, Flags, ThreadId, varptr(NodeCount), varptr(NodeInfoArray), IsCycle)
; WctHandle : void* -> "intptr"
; Context : UINT_PTR optional -> "intptr"
; Flags : WAIT_CHAIN_THREAD_OPTIONS -> "int"
; ThreadId : DWORD -> "int"
; NodeCount : DWORD* in/out -> "intptr"
; NodeInfoArray : WAITCHAIN_NODE_INFO* out -> "intptr"
; IsCycle : BOOL* out -> "int"
; ※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 (
	advapi32 = windows.NewLazySystemDLL("ADVAPI32.dll")
	procGetThreadWaitChain = advapi32.NewProc("GetThreadWaitChain")
)

// WctHandle (void*), Context (UINT_PTR optional), Flags (WAIT_CHAIN_THREAD_OPTIONS), ThreadId (DWORD), NodeCount (DWORD* in/out), NodeInfoArray (WAITCHAIN_NODE_INFO* out), IsCycle (BOOL* out)
r1, _, err := procGetThreadWaitChain.Call(
	uintptr(WctHandle),
	uintptr(Context),
	uintptr(Flags),
	uintptr(ThreadId),
	uintptr(NodeCount),
	uintptr(NodeInfoArray),
	uintptr(IsCycle),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function GetThreadWaitChain(
  WctHandle: Pointer;   // void*
  Context: NativeUInt;   // UINT_PTR optional
  Flags: DWORD;   // WAIT_CHAIN_THREAD_OPTIONS
  ThreadId: DWORD;   // DWORD
  NodeCount: Pointer;   // DWORD* in/out
  NodeInfoArray: Pointer;   // WAITCHAIN_NODE_INFO* out
  IsCycle: Pointer   // BOOL* out
): BOOL; stdcall;
  external 'ADVAPI32.dll' name 'GetThreadWaitChain';

result := DllCall("ADVAPI32\GetThreadWaitChain"
    , "Ptr", WctHandle   ; void*
    , "UPtr", Context   ; UINT_PTR optional
    , "UInt", Flags   ; WAIT_CHAIN_THREAD_OPTIONS
    , "UInt", ThreadId   ; DWORD
    , "Ptr", NodeCount   ; DWORD* in/out
    , "Ptr", NodeInfoArray   ; WAITCHAIN_NODE_INFO* out
    , "Ptr", IsCycle   ; BOOL* out
    , "Int")   ; return: BOOL

●GetThreadWaitChain(WctHandle, Context, Flags, ThreadId, NodeCount, NodeInfoArray, IsCycle) = DLL("ADVAPI32.dll", "bool GetThreadWaitChain(void*, int, dword, dword, void*, void*, void*)")
# 呼び出し: GetThreadWaitChain(WctHandle, Context, Flags, ThreadId, NodeCount, NodeInfoArray, IsCycle)
# WctHandle : void* -> "void*"
# Context : UINT_PTR optional -> "int"
# Flags : WAIT_CHAIN_THREAD_OPTIONS -> "dword"
# ThreadId : DWORD -> "dword"
# NodeCount : DWORD* in/out -> "void*"
# NodeInfoArray : WAITCHAIN_NODE_INFO* out -> "void*"
# IsCycle : BOOL* 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)。