有关多线程的一点点错误，请高手解答

[高性能架构探索]

刚开始学多线程，有很地方不懂多，下面是我刚写的代码，有错误，高手帮我指点一下

#include <iostream>
#include <windows.h>

using namespace std;

struct Node
{
	Node *next;
	int data; 
};

struct List
{
	Node *head;
	HANDLE mutex;
};

List *CreateList()
{
	List *list = new List;
	list->head = NULL;
	list->mutex = CreateMutex(NULL, FALSE, NULL);

	return list;
}

void AddNode(List *list, Node* node)
{

	WaitForSingleObject(list->mutex, INFINITE);
	node->next = list->head;
	list->head = node;

	ReleaseMutex(list->mutex);
}

void SwapList(List* &list1, List *&list2)
{
	List *temp = NULL;
	HANDLE handArry[2];

	handArry[0] = list1->mutex;
	handArry[1] = list1->mutex;

	WaitForMultipleObjects(2, handArry, TRUE, INFINITE);

	temp->head = list1->head;
	list1->head = list2->head;
	list2->head = temp->head;

	ReleaseMutex(handArry[0]);
	ReleaseMutex(handArry[0]);
}

int main()
{
	List *list1 = CreateList();
	List *list2 = CreateList();

	Node *node1 = new Node;
	node1->data = 1;
	node1->next = NULL;
	
	AddNode(list1, node1);
	Node *node2 = new Node;
	node2->data = 2;
	node2->next = NULL;

	AddNode(list2, node2);

	SwapList(list1, list2);

	cout << list1->head->data;
}

[高性能架构探索]

ReleaseMutex(handArry[0]);
ReleaseMutex(handArry[1]);

[高性能架构探索]

没问题了，吼吼

[小楫轻舟]

楼主自言自语。。。

[小楫轻舟]

今天高手都参加比赛去了，
论坛很冷清

[pengzhixi]

怎么解决的呢？

[高性能架构探索]

#include <iostream>
#include <windows.h>

using namespace std;

struct Node
{
    Node *next;
    int data; 
};

struct List
{
    Node *head;
    HANDLE mutex;
};

List *CreateList()
{
    List *list = new List;
    list->head = NULL;
    list->mutex = CreateMutex(NULL, FALSE, NULL);

    return list;
}

void AddNode(List *list, Node* node)
{

    WaitForSingleObject(list->mutex, INFINITE);
    node->next = list->head;
    list->head = node;

    ReleaseMutex(list->mutex);
}

void SwapList(List* &list1, List *&list2)
{
    List *temp = NULL;//Node *temp;
    HANDLE handArry[2];

    handArry[0] = list1->mutex;
    handArry[1] = list1->mutex;

    WaitForMultipleObjects(2, handArry, TRUE, INFINITE);

    temp = list1->head;//mark
    list1->head = list2->head;
    list2->head = temp;//mark

    ReleaseMutex(handArry[0]);
    ReleaseMutex(handArry[1]);
}

int main()
{
    List *list1 = CreateList();
    List *list2 = CreateList();

    Node *node1 = new Node;
    node1->data = 1;
    node1->next = NULL;
    
    AddNode(list1, node1);
    Node *node2 = new Node;
    node2->data = 2;
    node2->next = NULL;

    AddNode(list2, node2);

    SwapList(list1, list2);

    cout << list1->head->data;
}

[ligangdili]

#include <iostream>
#include <windows.h>

using namespace std;

struct Node
{
Node *next;
int data;
};

struct List
{
Node *head;
HANDLE mutex;
};

List *CreateList()
{
List *list = new List;
list->head = NULL;
list->mutex = CreateMutex(NULL, FALSE, NULL);

cout << "CreateList()" << endl;
return list;
}

void AddNode(List *list, Node* node)
{

WaitForSingleObject(list->mutex, INFINITE);
node->next = list->head;
list->head = node;

ReleaseMutex(list->mutex);
cout << "AddNode()" << endl;
}

void SwapList(List* &list1, List *&list2)
{
List *temp = NULL;
HANDLE handArry[2];

handArry[0] = list1->mutex;
handArry[1] = list2->mutex;

WaitForMultipleObjects(2, handArry, TRUE, INFINITE);

temp = list1;
list1->head = list2->head;
list2->head = temp->head;

ReleaseMutex(handArry[0]);
ReleaseMutex(handArry[0]);

cout << "SwapList()" << endl;
}

int main()
{
List *list1 = CreateList();
List *list2 = CreateList();

Node *node1 = new Node;
node1->data = 1;
node1->next = NULL;

AddNode(list1, node1);
Node *node2 = new Node;
node2->data = 2;
node2->next = NULL;

AddNode(list2, node2);

SwapList(list1, list2);

cout << list1->head->data;

return 0;
}

[ligangdili]

void SwapList(List* &list1, List *&list2)
中的temp为空指针，不能被当作结构使用：temp->head