汇编多线程

首先贴出来大神的代码,有点让我费解的是每次都要重新创建一个线程?

;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
; Sample code for < Win32ASM Programming 3rd Edition>
; by 罗云彬, http://www.win32asm.com.cn
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
; Counter.asm
; 使用多线程方式来处理长时间运行的计数子程序
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
; 使用 nmake 或下列命令进行编译和链接:
; ml /c /coff Counter.asm
; rc Counter.rc
; Link  /subsystem:windows Counter.obj Counter.res
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
.386
.model flat, stdcall
option casemap :none
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
; Include 文件定义
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
include windows.inc
include user32.inc
includelib user32.lib
include kernel32.inc
includelib kernel32.lib
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
; Equ 等值定义
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
ICO_MAIN equ 1000
DLG_MAIN equ 1000
IDC_COUNTER equ 1001
IDC_PAUSE equ 1002
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
; 数据段
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
.data?
hInstance dd ?
hWinMain dd ?
hWinCount dd ?
hWinPause dd ?


dwOption dd ?
F_PAUSE equ 0001h
F_STOP equ 0002h
F_COUNTING equ 0004h


.const
szStop db '停止计数',0
szStart db '计数',0
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
; 代码段
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>


.code
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
_Counter proc uses ebx esi edi _lParam


or dwOption,F_COUNTING
and dwOption,not (F_STOP or F_PAUSE)
invoke SetWindowText,hWinCount,addr szStop
invoke EnableWindow,hWinPause,TRUE


xor ebx,ebx
.while ! (dwOption & F_STOP)
.if !(dwOption & F_PAUSE)
inc ebx
invoke SetDlgItemInt,hWinMain,IDC_COUNTER,ebx,FALSE
.endif
.endw


invoke SetWindowText,hWinCount,addr szStart
invoke EnableWindow,hWinPause,FALSE
and dwOption,not (F_COUNTING or F_STOP or F_PAUSE)
ret


_Counter endp
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
_ProcDlgMain proc uses ebx edi esi hWnd,wMsg,wParam,lParam
local @dwThreadID


mov eax,wMsg
;********************************************************************
.if eax == WM_COMMAND
mov eax,wParam
.if ax == IDOK
.if dwOption & F_COUNTING
or dwOption,F_STOP
.else;这里每次都要创建一个线程感觉有点不妥,什么时候关闭线程的

;于是我只是在程序初始化的时候调用了createthread函数然后挂起,但是问题是可能线程没人回收
invoke CreateThread,NULL,0,offset _Counter,NULL,\
NULL,addr @dwThreadID
invoke CloseHandle,eax
.endif
.elseif ax == IDC_PAUSE
xor dwOption,F_PAUSE
.endif
;********************************************************************
.elseif eax == WM_CLOSE
invoke EndDialog,hWnd,NULL
;********************************************************************
.elseif eax == WM_INITDIALOG
push hWnd
pop hWinMain
invoke GetDlgItem,hWnd,IDOK
mov hWinCount,eax
invoke GetDlgItem,hWnd,IDC_PAUSE
mov hWinPause,eax
;********************************************************************
.else
mov eax,FALSE
ret
.endif
mov eax,TRUE
ret


_ProcDlgMain endp
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
start:
invoke GetModuleHandle,NULL
mov hInstance,eax
invoke DialogBoxParam,eax,DLG_MAIN,NULL,offset _ProcDlgMain,NULL
invoke ExitProcess,NULL
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
end start

.386

.model flat, stdcall
option casemap :none
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
; Include 文件定义
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
include windows.inc
include user32.inc
includelib user32.lib
include kernel32.inc
includelib kernel32.lib
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
; Equ 等值定义
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
ICO_MAIN equ 1000
DLG_MAIN equ 1000
IDC_COUNTER equ 1001
IDC_PAUSE equ 1002
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
; 数据段
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
.data?
hInstance dd ?
hWinMain dd ?
hWinCount dd ?
hWinPause dd ?


dwOption dd ?
F_PAUSE equ 0001h
F_STOP equ 0002h
F_COUNTING equ 0004h
@dwThreadID dd ?
dwHandle dd ?
.const
szStop db '停止计数',0
szStart db '计数',0


;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
; 代码段
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>


.code
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
_Counter proc uses ebx esi edi _lParam


or dwOption,F_COUNTING
and dwOption,not (F_STOP or F_PAUSE)
invoke SetWindowText,hWinCount,addr szStop
invoke EnableWindow,hWinPause,TRUE


xor ebx,ebx
.while ! (dwOption & F_STOP)
.if !(dwOption & F_PAUSE)
inc ebx
invoke SetDlgItemInt,hWinMain,IDC_COUNTER,ebx,FALSE
.endif
.endw


invoke SetWindowText,hWinCount,addr szStart
invoke EnableWindow,hWinPause,FALSE
and dwOption,not (F_COUNTING or F_STOP or F_PAUSE)
ret


_Counter endp
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
_ProcDlgMain proc uses ebx edi esi hWnd,wMsg,wParam,lParam
;local @dwThreadID


mov eax,wMsg
;********************************************************************
.if eax == WM_COMMAND
mov eax,wParam
.if ax == IDOK
.if dwOption & F_COUNTING
or dwOption,F_STOP
.else ;why evreytime need create a thread?
push @dwThreadID
;call _Counter
invoke ResumeThread,dwHandle
.endif
.elseif ax == IDC_PAUSE
xor dwOption,F_PAUSE
.endif
;********************************************************************
.elseif eax == WM_CLOSE
invoke EndDialog,hWnd,NULL
;********************************************************************
.elseif eax == WM_INITDIALOG
push hWnd
pop hWinMain
;$$$$$$$$$$$$$$
invoke CreateThread,NULL,0,offset _Counter,NULL,\
CREATE_SUSPENDED,addr @dwThreadID
mov dwHandle,eax
;invoke CloseHandle,eax
;$$$$$$$$$$$$$$$$$$$
invoke GetDlgItem,hWnd,IDOK
mov hWinCount,eax
invoke GetDlgItem,hWnd,IDC_PAUSE
mov hWinPause,eax
;********************************************************************
.else
mov eax,FALSE
ret
.endif
mov eax,TRUE
ret


_ProcDlgMain endp
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
start:
invoke GetModuleHandle,NULL
mov hInstance,eax
invoke DialogBoxParam,eax,DLG_MAIN,NULL,offset _ProcDlgMain,NULL
invoke ExitProcess,NULL
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
end start