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📄 2_1 栈 - 《多任务下的数据结构与算法》 - 免费试读 - book_csdn_net.htm

📁 主要介绍了多任务下面的一些数据结构和算法,比如树和图的一些遍历
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<P style="LINE-HEIGHT: 14pt">{</P>
<P style="LINE-HEIGHT: 14pt">MSTACK *pMStack = (MSTACK 
*)malloc(sizeof(MSTACK));</P>
<P style="LINE-HEIGHT: 14pt">if ( pMStack != NULL )</P>
<P style="LINE-HEIGHT: 14pt">{</P>
<P style="LINE-HEIGHT: 14pt">pMStack-&gt;pStack = Stack_Create(uStackSize);</P>
<P style="LINE-HEIGHT: 14pt">if ( pMStack-&gt;pStack != NULL )</P>
<P style="LINE-HEIGHT: 14pt">{</P>
<P style="LINE-HEIGHT: 14pt">/* 创建锁 */</P>
<P style="LINE-HEIGHT: 14pt">pMStack-&gt;pLock = LockCreate();</P>
<P style="LINE-HEIGHT: 14pt">if ( pMStack-&gt;pLock != NULL )</P>
<P style="LINE-HEIGHT: 14pt">{</P>
<P style="LINE-HEIGHT: 14pt">return pMStack;</P>
<P style="LINE-HEIGHT: 14pt">}</P>
<P style="LINE-HEIGHT: 14pt">free(pMStack-&gt;pStack);</P>
<P style="LINE-HEIGHT: 14pt">}</P>
<P style="LINE-HEIGHT: 14pt">free(pMStack);</P>
<P style="LINE-HEIGHT: 14pt">}</P>
<P style="LINE-HEIGHT: 14pt">return NULL;</P>
<P style="LINE-HEIGHT: 14pt">}</P>
<P style="LINE-HEIGHT: 14pt">/** 多任务栈的释放函数</P>
<P style="LINE-HEIGHT: 14pt">@param MSTACK *pMStack——栈指针 </P>
<P style="LINE-HEIGHT: 14pt">@param DESTROYFUNC DestroyFunc——数据释放回调函数 </P>
<P style="LINE-HEIGHT: 14pt">@return void——无 </P>
<P style="LINE-HEIGHT: 14pt">*/</P>
<P style="LINE-HEIGHT: 14pt"><B>void MStack_Destroy(MSTACK 
*pMStack</B><B>,</B><B>DESTROYFUNC DestroyFunc)</B></P>
<P style="LINE-HEIGHT: 14pt">{</P>
<P style="LINE-HEIGHT: 14pt">if ( pMStack != NULL )</P>
<P style="LINE-HEIGHT: 14pt">{</P>
<P style="LINE-HEIGHT: 14pt">Lock(pMStack-&gt;pLock);</P>
<P style="LINE-HEIGHT: 14pt">Stack_Destroy(pMStack-&gt;pStack,DestroyFunc);</P>
<P style="LINE-HEIGHT: 14pt">LockClose(pMStack-&gt;pLock);</P>
<P style="LINE-HEIGHT: 14pt">free(pMStack);</P>
<P style="LINE-HEIGHT: 14pt">}</P>
<P style="LINE-HEIGHT: 14pt">}</P>
<P style="LINE-HEIGHT: 14pt">/** 多任务栈的弹出操作函数</P>
<P style="LINE-HEIGHT: 14pt">@param MSTACK *pMStack——栈指针 </P>
<P style="LINE-HEIGHT: 14pt">@return void *——弹出的数据指针 </P>
<P style="LINE-HEIGHT: 14pt">*/</P>
<P style="LINE-HEIGHT: 14pt"><B>void *MStack_Pop( MSTACK *pMStack )</B></P>
<P style="LINE-HEIGHT: 14pt">{</P>
<P style="LINE-HEIGHT: 14pt">void *pData;</P>
<P style="LINE-HEIGHT: 14pt">Lock(pMStack-&gt;pLock);</P>
<P style="LINE-HEIGHT: 14pt">pData = Stack_Pop(pMStack-&gt;pStack);</P>
<P style="LINE-HEIGHT: 14pt">Unlock(pMStack-&gt;pLock);</P>
<P style="LINE-HEIGHT: 14pt">return pData;</P>
<P style="LINE-HEIGHT: 14pt">}</P>
<P style="LINE-HEIGHT: 14pt">/** 栈的压入操作函数</P>
<P style="LINE-HEIGHT: 14pt">@param MSTACK *pMStack——栈指针 </P>
<P style="LINE-HEIGHT: 14pt">@param void *pData——数据指针 </P>
<P style="LINE-HEIGHT: 14pt">@return INT——返回CAPI_SUCCESS表示成功;返回CAPI_FAILED表示失败 
</P>
<P style="LINE-HEIGHT: 14pt">*/</P>
<P style="LINE-HEIGHT: 14pt"><B>INT MStack_Push( MSTACK 
*pMStack</B><B>,</B><B>void *pData )</B></P>
<P style="LINE-HEIGHT: 14pt">{</P>
<P style="LINE-HEIGHT: 14pt">INT nRet;</P>
<P style="LINE-HEIGHT: 14pt">Lock(pMStack-&gt;pLock);</P>
<P style="LINE-HEIGHT: 14pt">nRet = Stack_Push(pMStack-&gt;pStack,pData);</P>
<P style="LINE-HEIGHT: 14pt">Unlock(pMStack-&gt;pLock);</P>
<P style="LINE-HEIGHT: 14pt">return nRet;</P>
<P style="LINE-HEIGHT: 14pt">}</P>
<P style="LINE-HEIGHT: 14.5pt">/** 判断栈是否为空</P>
<P style="LINE-HEIGHT: 14.5pt">@param MSTACK *pMStack——栈指针 </P>
<P style="LINE-HEIGHT: 14.5pt">@return INT——0表示为空;1表示非空 </P>
<P style="LINE-HEIGHT: 14.5pt">*/</P>
<P style="LINE-HEIGHT: 14.5pt"><B>INT MStack_IsEmpty( MSTACK *pMStack )</B></P>
<P style="LINE-HEIGHT: 14.5pt">{</P>
<P style="LINE-HEIGHT: 14.5pt">INT nRet;</P>
<P style="LINE-HEIGHT: 14.5pt">Lock(pMStack-&gt;pLock);</P>
<P style="LINE-HEIGHT: 14.5pt">nRet = Stack_IsEmpty(pMStack-&gt;pStack);</P>
<P style="LINE-HEIGHT: 14.5pt">Unlock(pMStack-&gt;pLock);</P>
<P style="LINE-HEIGHT: 14.5pt">return nRet;</P>
<P style="LINE-HEIGHT: 14.5pt">}</P></DIV><!-- page -->
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<H1 id=divCurrentNode2 
style="PADDING-LEFT: 2px; FONT-SIZE: 12px; WIDTH: 100%; COLOR: #b83507; TEXT-ALIGN: left">当前章节:<A 
href="http://book.csdn.net/bookfiles/65/100651877.shtml"><FONT color=red>2.1 栈 
</FONT></A></H1>
<DIV id=divRealteNod2 style="PADDING-LEFT: 2px">
<DIV style="FLOAT: left; WIDTH: 49%">·<A 
href="http://book.csdn.net/bookfiles/65/100651874.shtml">1.3 任意数据类型处理</A></DIV>
<DIV style="FLOAT: right; WIDTH: 49%">·<A 
href="http://book.csdn.net/bookfiles/65/100651875.shtml">1.4 多任务介绍 </A></DIV>
<DIV style="FLOAT: left; WIDTH: 49%">·<A 
href="http://book.csdn.net/bookfiles/65/100651876.shtml">1.5 软件设计简介</A></DIV>
<DIV style="FLOAT: right; WIDTH: 49%">·<A 
href="http://book.csdn.net/bookfiles/65/100651878.shtml">2.2 队列 </A></DIV>
<DIV style="FLOAT: left; WIDTH: 49%">·<A 
href="http://book.csdn.net/bookfiles/65/100651879.shtml">2.3 排序表 </A></DIV>
<DIV style="FLOAT: right; WIDTH: 49%">·<A 
href="http://book.csdn.net/bookfiles/65/100651880.shtml">2.4 实例:HOOK管理功能的实现 
</A></DIV></DIV></DIV></DIV>
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