📄 csdn_文档中心_win32多线程程序设计学习笔记（第四章 下 第五章）.htm
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face=宋体><FONT size=2><B><SPAN lang=EN-US
style="COLOR: green">hExitEvent</SPAN></B><B><SPAN
style="COLOR: green; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">不是总处于未激发状态吗？哪线程不就停在这里不动了？</SPAN><SPAN
lang=EN-US
style="COLOR: green"><o:p></o:p></SPAN></B></FONT></FONT></P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt 21pt; TEXT-INDENT: 21pt"><FONT
size=2><B><SPAN
style="COLOR: green; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">答案是：这里用到了</SPAN><SPAN
lang=EN-US style="COLOR: green"><FONT
face=宋体>P74</FONT></SPAN></B><B><SPAN
style="COLOR: green; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">提到的一个</SPAN><SPAN
lang=EN-US style="COLOR: green"><FONT
face=宋体>Wait….()</FONT></SPAN></B><B><SPAN
style="COLOR: green; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">一个用法，当</SPAN><SPAN
lang=EN-US style="COLOR: green"><FONT
face=宋体>time_out<o:p></o:p></FONT></SPAN></B></FONT></P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt 21pt; TEXT-INDENT: 21pt"><FONT
size=2><B><SPAN
style="COLOR: green; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">为</SPAN><SPAN
lang=EN-US style="COLOR: green"><FONT
face=宋体>0</FONT></SPAN></B><B><SPAN
style="COLOR: green; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">，检查</SPAN><SPAN
lang=EN-US style="COLOR: green"><FONT
face=宋体>hExitEvent</FONT></SPAN></B><B><SPAN
style="COLOR: green; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">的状态，如果</SPAN><SPAN
lang=EN-US style="COLOR: green"><FONT
face=宋体>hExitEvent</FONT></SPAN></B><B><SPAN
style="COLOR: green; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">处于未激发状态，</SPAN><SPAN
lang=EN-US style="COLOR: green"><o:p></o:p></SPAN></B></FONT></P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt 21pt; TEXT-INDENT: 21pt"><FONT
size=2><B><SPAN
style="COLOR: green; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">立刻返回</SPAN><SPAN
lang=EN-US style="COLOR: green"><FONT
face=宋体>WAIT_TIMEOUT</FONT></SPAN></B><B><SPAN
style="COLOR: green; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">，如果</SPAN><SPAN
lang=EN-US style="COLOR: green"><FONT
face=宋体>hExitEvent</FONT></SPAN></B><B><SPAN
style="COLOR: green; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">处于激发状态，则立刻</SPAN><SPAN
lang=EN-US style="COLOR: green"><o:p></o:p></SPAN></B></FONT></P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt 21pt; TEXT-INDENT: 21pt"><FONT
size=2><B><SPAN
style="COLOR: green; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">返回</SPAN><SPAN
lang=EN-US style="COLOR: green"><FONT
face=宋体>WAIT_OBJECT_0</FONT></SPAN></B><B><SPAN
style="COLOR: green; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">。</SPAN><SPAN
lang=EN-US style="COLOR: green"><FONT
face=宋体>*/<o:p></o:p></FONT></SPAN></B></FONT></P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt 21pt; TEXT-INDENT: 21pt"><B><SPAN
lang=EN-US><FONT face=宋体><FONT size=2>if ( WaitForSingleObject (
hExitEvent , 0 ) !=WAIT_TIMEOUT
)<o:p></o:p></FONT></FONT></SPAN></B></P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt 21pt; TEXT-INDENT: 21pt"><B><SPAN
lang=EN-US><FONT face=宋体><FONT
size=2>{<o:p></o:p></FONT></FONT></SPAN></B></P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt 21pt; TEXT-INDENT: 21pt"><FONT
face=宋体><FONT size=2><B><SPAN lang=EN-US><SPAN
style="mso-tab-count: 1">
</SPAN><SPAN style="COLOR: green">//</SPAN></SPAN></B><B><SPAN
style="COLOR: green; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">做一些退出线程前的清理工作</SPAN><SPAN
lang=EN-US
style="COLOR: green"><o:p></o:p></SPAN></B></FONT></FONT></P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt 21pt; TEXT-INDENT: 21pt"><B><SPAN
lang=EN-US><FONT face=宋体><FONT size=2><SPAN
style="mso-tab-count: 1">
</SPAN>return (DWORD) –1 ;<o:p></o:p></FONT></FONT></SPAN></B></P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt 21pt; TEXT-INDENT: 21pt"><B><SPAN
lang=EN-US><FONT face=宋体><FONT
size=2>}<o:p></o:p></FONT></FONT></SPAN></B></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT face=宋体><FONT
size=2><B><SPAN lang=EN-US><SPAN
style="mso-tab-count: 2">
</SPAN><SPAN style="COLOR: green">//</SPAN></SPAN></B><B><SPAN
style="COLOR: green; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">做一些极其消耗时间的处理</SPAN><SPAN
lang=EN-US
style="COLOR: green">….<o:p></o:p></SPAN></B></FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><B><SPAN lang=EN-US
style="COLOR: green"><FONT face=宋体><FONT size=2><SPAN
style="mso-tab-count: 2">
</SPAN>//…….<o:p></o:p></FONT></FONT></SPAN></B></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><B><FONT
face=宋体><FONT size=2><SPAN lang=EN-US style="COLOR: green"><SPAN
style="mso-tab-count: 1">
</SPAN><SPAN
style="mso-tab-count: 1">
</SPAN>//……..</SPAN><SPAN
lang=EN-US><o:p></o:p></SPAN></FONT></FONT></B></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><B><SPAN
lang=EN-US><FONT face=宋体><FONT size=2><SPAN
style="mso-tab-count: 1">
</SPAN>}<o:p></o:p></FONT></FONT></SPAN></B></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><B><SPAN
lang=EN-US><FONT face=宋体><FONT
size=2>}<o:p></o:p></FONT></FONT></SPAN></B></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><B><SPAN
lang=EN-US><FONT face=宋体><FONT size=2>void
main()<o:p></o:p></FONT></FONT></SPAN></B></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><B><SPAN
lang=EN-US><FONT face=宋体><FONT size=2>{<SPAN
style="mso-tab-count: 2">
</SPAN><o:p></o:p></FONT></FONT></SPAN></B></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT face=宋体><FONT
size=2><B><SPAN lang=EN-US><SPAN
style="mso-tab-count: 1">
</SPAN><SPAN
style="mso-tab-count: 1">
</SPAN>HANDLE </SPAN></B><B><SPAN lang=EN-US
style="FONT-SIZE: 10pt; mso-bidi-font-size: 12.0pt">hThrd;<o:p></o:p></SPAN></B></FONT></FONT></P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt 21pt; TEXT-INDENT: 21pt"><FONT
face=宋体><FONT size=2><B><SPAN lang=EN-US
style="COLOR: green">//</SPAN></B><B><SPAN
style="COLOR: green; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">构造</SPAN><SPAN
lang=EN-US style="COLOR: green">EVENT</SPAN></B><B><SPAN
style="COLOR: green; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">核心对象</SPAN><SPAN
lang=EN-US style="COLOR: green">,</SPAN></B><B><SPAN
style="COLOR: green; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">初始状态处于未激发状态，</SPAN><SPAN
lang=EN-US style="COLOR: green">Manual</SPAN></B><B><SPAN
style="COLOR: green; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">方式</SPAN><SPAN
lang=EN-US
style="COLOR: green"><o:p></o:p></SPAN></B></FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><B><SPAN
lang=EN-US><FONT face=宋体><FONT size=2><SPAN
style="mso-tab-count: 1">
</SPAN><SPAN
style="mso-tab-count: 1">
</SPAN>hExitEvent = CreateEvent ( NULL,TRUE,FALSE,NULL )
;<o:p></o:p></FONT></FONT></SPAN></B></P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt 21pt; TEXT-INDENT: 21pt"><FONT
face=宋体><FONT size=2><B><SPAN lang=EN-US
style="COLOR: green">//</SPAN></B><B><SPAN
style="COLOR: green; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">线程启动</SPAN><SPAN
lang=EN-US
style="COLOR: green"><o:p></o:p></SPAN></B></FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT face=宋体><FONT
size=2><B><SPAN lang=EN-US><SPAN
style="mso-tab-count: 2">
</SPAN></SPAN></B><B><SPAN lang=EN-US
style="FONT-SIZE: 10pt; mso-bidi-font-size: 12.0pt">hThrd<SPAN
style="mso-spacerun: yes"> </SPAN>= CreateThread ( null<SPAN
style="COLOR: blue">,ThreadFun</SPAN>,…..);</SPAN><SPAN
lang=EN-US><o:p></o:p></SPAN></B></FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT face=宋体><FONT
size=2><B><SPAN lang=EN-US><SPAN
style="mso-tab-count: 2">
</SPAN><SPAN style="COLOR: green">//</SPAN></SPAN></B><B><SPAN
style="COLOR: green; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">等待了很久，实在等不下去了，发出结束线程退出事件（激发</SPAN><SPAN
lang=EN-US style="COLOR: green">EVENT</SPAN></B><B><SPAN
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