实验五：用callback增强链表模块来实现命令行菜单小程序V2.8

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#define CMD_MAX_LEN 128
#define DESC_LEN 1024
#define CMD_NUM 10//char cmd[CMD_MAX_LEN]; //此处配合callback函数进行修改
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/** find the node is matched with the cmd or not.* @pLinkTableNode: a pointer to the node to be tested.* @cmd: a pointer to a string used to test the node.* @return: if matched*/
int SearchCondition(tLinkTableNode * pLinkTableNode, char * cmd) //此处配合callback函数进行修改
{if((NULL == pLinkTableNode) || (NULL == cmd)) //添加输入参数合法性检查{return FAILURE;}tDataNode * pNode = (tDataNode *)pLinkTableNode;if(strcmp(pNode->cmd, cmd) == 0){return SUCCESS; }return FAILURE; 
}/* * find a cmd in the linklist and return the datanode pointer.* @head: a pointer to the head of a LinkTable.* @cmd: a poiner to a string which indicates the name of the command.* @return: a pointer to a tDataNode that matched the cmd.*/
tDataNode* FindCmd(tLinkTable * head, char * cmd)
{return (tDataNode*)SearchLinkTableNode(head,SearchCondition, cmd); //此处配合callback函数进行修改
}
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int main()
{InitMenuData(&head); 
/* cmd line begins */char cmd[CMD_MAX_LEN]; //此处配合callback函数进行修改while(1)... ...

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/** LinkTable Node Type*/
typedef struct LinkTableNode tLinkTableNode; //适当隐藏接口信息/** LinkTable Type*/
typedef struct LinkTable tLinkTable; //适当隐藏接口信息
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/** Search a LinkTableNode from LinkTable* @pLinkTable: a pointer to the linkTable to be searched.* @int Conditon(tLinkTableNode * pNode): a pointer to a function used as judging condition.* @cmd: a pointer to a string used to test the node of the LinkTable.* @return: if find the matched node, then return it, else return NULL.*/
tLinkTableNode * SearchLinkTableNode(tLinkTable *pLinkTable, int Conditon(tLinkTableNode * pNode,char * cmd), char * cmd);//此处配合callback函数进行修改
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//被隐藏的接口信息从.h文件转移到.c文件
/** LinkTable Node Type*/
typedef struct LinkTableNode
{struct LinkTableNode * pNext;
}tLinkTableNode;/** LinkTable Type*/
typedef struct LinkTable
{tLinkTableNode *pHead;tLinkTableNode *pTail;int SumOfNode;pthread_mutex_t mutex;
}tLinkTable;
... .../** Search a LinkTableNode from LinkTable* @pLinkTable: a pointer to the linkTable to be searched.* @int Conditon(tLinkTableNode * pNode): a pointer to a function used as judging condition.* @cmd: a pointer to a string used to test the node of the LinkTable.* @return: if find the matched node, then return it, else return NULL.*/
tLinkTableNode * SearchLinkTableNode(tLinkTable *pLinkTable, int Conditon(tLinkTableNode * pNode, char * cmd), char * cmd)//此处配合callback函数进行修改
{if((NULL == pLinkTable) || (NULL == Conditon) || (NULL == cmd)){return NULL;}tLinkTableNode * pNode = pLinkTable->pHead;
//while(pNode != pLinkTable->pTail) //This test condition will stop the loop when reaching the tail node.while(NULL != pNode) //这里处理掉了quit命令无法使用的bug{ if(Conditon(pNode, cmd) == SUCCESS){return pNode; }pNode = pNode->pNext;}return NULL;
}
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