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	<title>wait - 四号程序员</title>
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		<title>linux中wait系统调用</title>
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		<pubDate>Thu, 18 Feb 2010 17:07:03 +0000</pubDate>
				<category><![CDATA[Linux]]></category>
		<category><![CDATA[wait]]></category>
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					<description><![CDATA[系统中的僵尸进程都要由wait系统调用来回收，下面就通过实战看一看wait的具体用法： wait的函数原型是： #include&#60;sys/types.h&#62;/* 提供类型pid_t的定义 */ #include&#60;sys/wait.h&#62; pid_twait(int*status); 进 程一旦调用了wait，就立即阻塞自己，由wait自动分析是否当前进程的某个子进程已经退出，如果让它找到了这样一个已经变成僵尸的子进程，wait就 会收集这个子进程的信息，并把它彻[......] 继续阅读]]></description>
		
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