[19] | 1 | 'threading.sbp
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[1] | 2 |
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[58] | 3 |
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| 4 | '--------------------------------------------------------------------
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| 5 | ' スレッドの優先順位
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| 6 | '--------------------------------------------------------------------
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[1] | 7 | Enum ThreadPriority
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[19] | 8 | Highest = 2
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| 9 | AboveNormal = 1
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| 10 | Normal = 0
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| 11 | BelowNormal = -1
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| 12 | Lowest = -2
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[1] | 13 | End Enum
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| 14 |
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| 15 | TypeDef PTHREAD_START_ROUTINE = *Function(args As VoidPtr) As DWord
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| 16 |
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[58] | 17 |
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| 18 | '--------------------------------------------------------------------
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| 19 | ' スレッド クラス
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| 20 | '--------------------------------------------------------------------
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[1] | 21 | Class Thread
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| 22 | m_hThread As HANDLE
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[19] | 23 | m_dwThreadId As DWord
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[1] | 24 | m_Priority As ThreadPriority
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| 25 |
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| 26 | m_fp As PTHREAD_START_ROUTINE
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| 27 | m_args As VoidPtr
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[330] | 28 | name As String
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[58] | 29 |
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[374] | 30 | isThrowing As Boolean
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| 31 | throwingParamObject As Object
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| 32 |
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[1] | 33 | Public
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| 34 | Sub Thread()
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| 35 | m_hThread=0
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[19] | 36 | m_dwThreadId=0
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[1] | 37 | m_Priority=ThreadPriority.Normal
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| 38 |
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| 39 | m_fp=0
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[330] | 40 |
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| 41 | name = "sub thread"
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[374] | 42 |
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| 43 | isThrowing = False
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| 44 | throwingParamObject = Nothing
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[1] | 45 | End Sub
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| 46 | Sub Thread(fp As PTHREAD_START_ROUTINE, args As VoidPtr)
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| 47 | m_hThread=0
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[19] | 48 | m_dwThreadId=0
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[1] | 49 | m_Priority=ThreadPriority.Normal
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| 50 |
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| 51 | m_fp=fp
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| 52 | m_args=args
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[330] | 53 |
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| 54 | name = "sub thread"
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[374] | 55 |
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| 56 | isThrowing = False
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| 57 | throwingParamObject = Nothing
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[1] | 58 | End Sub
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| 59 |
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[249] | 60 | Sub Thread(obj As Thread)
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[19] | 61 | m_hThread=obj.m_hThread
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| 62 | m_dwThreadId=obj.m_dwThreadId
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| 63 | m_Priority=obj.m_Priority
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| 64 | m_fp=obj.m_fp
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| 65 | m_args=obj.m_args
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[330] | 66 |
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| 67 | name = "sub thread"
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[374] | 68 |
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| 69 | isThrowing = False
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| 70 | throwingParamObject = Nothing
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[19] | 71 | End Sub
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[1] | 72 |
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[237] | 73 | Sub Thread(hThread As HANDLE, dwThreadId As DWord, dummy As Long)
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[19] | 74 | m_hThread=hThread
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| 75 | m_dwThreadId=dwThreadId
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[330] | 76 |
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| 77 | name = "sub thread"
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[374] | 78 |
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| 79 | isThrowing = False
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| 80 | throwingParamObject = Nothing
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[19] | 81 | End Sub
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| 82 |
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| 83 | Sub ~Thread()
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| 84 | End Sub
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| 85 |
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| 86 |
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[237] | 87 | Function Equals(thread As Thread) As Boolean
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| 88 | Return m_dwThreadId = thread.m_dwThreadId
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[19] | 89 | End Function
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| 90 |
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| 91 | '-----------------------
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| 92 | ' Public Properties
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| 93 | '-----------------------
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| 94 |
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[237] | 95 |
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[19] | 96 | 'Priority Property
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[1] | 97 | Sub Priority(value As ThreadPriority)
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| 98 | m_Priority=value
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[19] | 99 | SetThreadPriority(m_hThread,value)
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[1] | 100 | End Sub
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| 101 | Function Priority() As ThreadPriority
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| 102 | Return m_Priority
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| 103 | End Function
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| 104 |
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[19] | 105 | 'ThreadId
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| 106 | Function ThreadId() As DWord
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| 107 | Return m_dwThreadId
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| 108 | End Function
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[1] | 109 |
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[330] | 110 | Function Name() As String
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| 111 | Return name
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| 112 | End Function
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| 113 | Sub Name( name As String )
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| 114 | This.name = name
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| 115 | End Sub
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[19] | 116 |
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| 117 |
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| 118 |
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[237] | 119 |
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[330] | 120 |
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[1] | 121 | Sub Start()
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| 122 | Dim ThreadId As DWord
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[19] | 123 | m_hThread=_beginthreadex(NULL,0,AddressOf(_run),VarPtr(This),CREATE_SUSPENDED,m_dwThreadId)
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[1] | 124 | SetThreadPriority(m_hThread,m_Priority)
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| 125 | Resume()
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| 126 | End Sub
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| 127 |
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| 128 | Private
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[19] | 129 | Function Cdecl _run() As Long
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[1] | 130 | '------------
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| 131 | ' 前処理
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| 132 | '------------
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| 133 |
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| 134 | 'GCにスレッド開始を通知
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[148] | 135 | _System_pobj_AllThreads->BeginThread(VarPtr(This),_System_GetSp() As *LONG_PTR)
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[1] | 136 |
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| 137 |
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| 138 | '------------
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| 139 | '実行
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| 140 | '------------
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[19] | 141 | _run=Run()
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[1] | 142 |
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| 143 |
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| 144 | '------------
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| 145 | '後処理
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| 146 | '------------
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| 147 |
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| 148 | 'GCにスレッド終了を通知
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[148] | 149 | _System_pobj_AllThreads->EndThread(VarPtr(This))
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[1] | 150 |
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| 151 | '自身のスレッドハンドルを閉じる
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| 152 | CloseHandle(m_hThread)
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[19] | 153 | m_hThread=0
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[1] | 154 |
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| 155 | End Function
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| 156 |
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| 157 | Public
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| 158 | Virtual Function Run() As Long
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| 159 | If m_fp Then
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| 160 | Run=m_fp(m_args)
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| 161 | End If
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| 162 | End Function
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| 163 |
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| 164 | Sub Suspend()
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[148] | 165 | If SuspendThread(m_hThread) = &HFFFFFFFF Then
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| 166 | debug
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| 167 | End If
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[1] | 168 | End Sub
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| 169 | Sub Resume()
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[148] | 170 | If ResumeThread(m_hThread) = &HFFFFFFFF Then
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| 171 | debug
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| 172 | End If
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[1] | 173 | End Sub
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| 174 |
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[19] | 175 | Function __GetContext(ByRef Context As CONTEXT) As BOOL
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| 176 | Return GetThreadContext(m_hThread,Context)
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| 177 | End Function
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[58] | 178 | Function __SetContext(ByRef Context As CONTEXT) As BOOL
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| 179 | Return SetThreadContext(m_hThread,Context)
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| 180 | End Function
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[19] | 181 |
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[374] | 182 | Sub __Throw( ex As Object )
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| 183 | isThrowing = True
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| 184 | throwingParamObject = ex
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| 185 | End Sub
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| 186 | Sub __Catched()
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| 187 | isThrowing = False
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| 188 | throwingParamObject = Nothing
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| 189 | End Sub
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| 190 | Function __IsThrowing() As Boolean
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| 191 | Return isThrowing
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| 192 | End Function
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| 193 | Function __GetThrowintParamObject() As Object
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| 194 | Return throwingParamObject
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| 195 | End Function
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[19] | 196 |
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[374] | 197 |
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[19] | 198 | Static Function CurrentThread() As Thread
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[249] | 199 | Return _System_pobj_AllThreads->CurrentThread()
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[19] | 200 | End Function
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| 201 | End Class
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| 202 |
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| 203 |
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[58] | 204 | '--------------------------------------------------------------------
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| 205 | ' すべてのスレッドの管理
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| 206 | '--------------------------------------------------------------------
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| 207 | ' TODO: このクラスをシングルトンにする
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[19] | 208 | Class _System_CThreadCollection
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| 209 | Public
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| 210 | ppobj_Thread As **Thread
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| 211 | pStackBase As **LONG_PTR
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| 212 | ThreadNum As Long
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| 213 |
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| 214 | CriticalSection As CRITICAL_SECTION
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| 215 |
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| 216 | Sub _System_CThreadCollection()
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[148] | 217 | ppobj_Thread=GC_malloc(1)
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[19] | 218 | pStackBase=HeapAlloc(_System_hProcessHeap,0,1)
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[58] | 219 | ppException=HeapAlloc(_System_hProcessHeap,0,1)
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[19] | 220 | ThreadNum=0
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| 221 |
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| 222 | 'クリティカルセッションを生成
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| 223 | InitializeCriticalSection(CriticalSection)
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[1] | 224 | End Sub
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[19] | 225 |
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| 226 | Sub ~_System_CThreadCollection()
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[234] | 227 | Dim i As Long
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| 228 | For i=0 To ELM(ThreadNum)
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| 229 | If ppobj_Thread[i] Then
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| 230 | If i = 0 Then
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| 231 | Delete ppobj_Thread[i]
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| 232 | End If
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| 233 | ppobj_Thread[i]=0
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| 234 | pStackBase[i]=0
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| 235 | Delete ppException[i]
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| 236 | ppException[i]=0
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| 237 | Exit For
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| 238 | End If
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| 239 | Next
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| 240 |
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[19] | 241 | HeapFree(_System_hProcessHeap,0,pStackBase)
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| 242 | pStackBase=0
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| 243 |
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[58] | 244 | HeapFree(_System_hProcessHeap,0,ppException)
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| 245 | ppException = 0
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| 246 |
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[19] | 247 | ThreadNum=0
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| 248 |
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| 249 | 'クリティカルセッションを破棄
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| 250 | DeleteCriticalSection(CriticalSection)
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| 251 | End Sub
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| 252 |
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| 253 | 'スレッドを生成
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[148] | 254 | Sub BeginThread(pThread As *Thread,NowSp As *LONG_PTR)
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[19] | 255 | EnterCriticalSection(CriticalSection)
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| 256 |
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[58] | 257 | '例外処理管理用オブジェクトを生成
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| 258 | Dim pException As *ExceptionService
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| 259 | pException = New ExceptionService
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| 260 |
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[19] | 261 | Dim i As Long
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| 262 | For i=0 To ELM(ThreadNum)
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[58] | 263 | If ppobj_Thread[i] = 0 Then
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[148] | 264 | ppobj_Thread[i] = pThread
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[58] | 265 | pStackBase[i] = NowSp
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| 266 | ppException[i] = pException
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[19] | 267 | Exit For
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| 268 | End If
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| 269 | Next
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| 270 |
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[58] | 271 | If i = ThreadNum Then
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[148] | 272 | ppobj_Thread=realloc(ppobj_Thread,(ThreadNum+1)*SizeOf(*Thread))
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| 273 | ppobj_Thread[ThreadNum]=pThread
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[19] | 274 | pStackBase=HeapReAlloc(_System_hProcessHeap,0,pStackBase,(ThreadNum+1)*SizeOf(LONG_PTR))
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| 275 | pStackBase[ThreadNum]=NowSp
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[58] | 276 | ppException=HeapReAlloc(_System_hProcessHeap,0,ppException,(ThreadNum+1)*SizeOf(*ExceptionService))
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| 277 | ppException[ThreadNum]=pException
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[19] | 278 | ThreadNum++
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| 279 | End If
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| 280 | LeaveCriticalSection(CriticalSection)
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| 281 | End Sub
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| 282 |
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| 283 | 'スレッドを終了
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[148] | 284 | Sub EndThread(pThread As *Thread)
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[19] | 285 | EnterCriticalSection(CriticalSection)
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| 286 | Dim i As Long
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| 287 | For i=0 To ELM(ThreadNum)
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[148] | 288 | If ppobj_Thread[i] = pThread Then
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| 289 | If i = 0 Then
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| 290 | Delete pThread
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| 291 | End If
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[19] | 292 | ppobj_Thread[i]=0
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| 293 | pStackBase[i]=0
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[220] | 294 | Delete ppException[i]
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| 295 | ppException[i]=0
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[19] | 296 | Exit For
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| 297 | End If
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| 298 | Next
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| 299 | LeaveCriticalSection(CriticalSection)
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| 300 | End Sub
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| 301 |
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| 302 | ' すべてのスレッドを中断
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| 303 | Sub SuspendAllThread()
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| 304 | Dim i As Long
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| 305 | For i=0 To ELM(ThreadNum)
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| 306 | If ppobj_Thread[i] Then
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| 307 | ppobj_Thread[i]->Suspend()
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| 308 | End If
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| 309 | Next
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| 310 | End Sub
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| 311 |
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| 312 | ' すべてのスレッドを再開
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| 313 | Sub ResumeAllThread()
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| 314 | Dim i As Long
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| 315 | For i=0 To ELM(ThreadNum)
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| 316 | If ppobj_Thread[i] Then
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| 317 | ppobj_Thread[i]->Resume()
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| 318 | End If
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| 319 | Next
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| 320 | End Sub
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| 321 |
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[148] | 322 | ' 自分以外のスレッドを中断
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| 323 | Sub SuspendAnotherThread()
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| 324 | Dim currentThread = Thread.CurrentThread()
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| 325 |
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| 326 | Dim i As Long
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| 327 | For i=0 To ELM(ThreadNum)
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| 328 |
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[303] | 329 | If currentThread.Equals( ppobj_Thread[i] As Object ) Then
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[148] | 330 | Continue
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| 331 | End If
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| 332 |
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| 333 | If ppobj_Thread[i] Then
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| 334 | ppobj_Thread[i]->Suspend()
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| 335 | End If
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| 336 | Next
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| 337 | End Sub
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| 338 |
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| 339 | ' 自分以外のスレッドを再開
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| 340 | Sub ResumeAnotherThread()
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| 341 | Dim currentThread = Thread.CurrentThread()
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| 342 |
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| 343 | Dim i As Long
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| 344 | For i=0 To ELM(ThreadNum)
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| 345 |
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[303] | 346 | If currentThread.Equals( ppobj_Thread[i] As Object ) Then
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[148] | 347 | Continue
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| 348 | End If
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| 349 |
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| 350 | If ppobj_Thread[i] Then
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| 351 | ppobj_Thread[i]->Resume()
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| 352 | End If
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| 353 | Next
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| 354 | End Sub
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| 355 |
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[58] | 356 | 'カレントスレッドを取得
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[249] | 357 | Function CurrentThread() As Thread
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[19] | 358 | Dim dwNowThreadId As DWord
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| 359 | dwNowThreadId=GetCurrentThreadId()
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| 360 |
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| 361 | Dim i As Long
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| 362 | For i=0 To ELM(ThreadNum)
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| 363 | If ppobj_Thread[i]->ThreadId=dwNowThreadId Then
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[249] | 364 | Return ByVal ppobj_Thread[i]
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[19] | 365 | End If
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| 366 | Next
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| 367 |
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[249] | 368 | ' TODO: エラー処理
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| 369 | OutputDebugString( "カレントスレッドの取得に失敗" )
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| 370 | debug
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[19] | 371 | End Function
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[58] | 372 |
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| 373 |
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| 374 | Private
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| 375 | '------------------------------------------
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| 376 | ' スレッド固有の例外処理制御
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| 377 | '------------------------------------------
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| 378 | ppException As **ExceptionService
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| 379 |
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| 380 | Public
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| 381 | Function GetCurrentException() As *ExceptionService
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| 382 | Dim dwNowThreadId As DWord
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| 383 | dwNowThreadId=GetCurrentThreadId()
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| 384 |
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| 385 | Dim i As Long
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| 386 | For i=0 To ELM(ThreadNum)
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| 387 | If ppobj_Thread[i]->ThreadId=dwNowThreadId Then
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| 388 | Return ppException[i]
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| 389 | End If
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| 390 | Next
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| 391 |
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| 392 | Return NULL
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| 393 | End Function
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[1] | 394 | End Class
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[19] | 395 | Dim _System_pobj_AllThreads As *_System_CThreadCollection
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