Cocos2d-x 中使用多線程

原文章在http://blog.csdn.net/huutu/article/details/9889447

一直以爲Cocos2d-x中只有事件隊列，只有一個主線程。。。

首先設置頭文件

E:\Cocos2d-X\cocos2d-2.1rc0-x-2.1.2\cocos2dx\platform\third_party\win32\pthread

然後添加Lib

pthreadVCE2.lib

相關的函數：

pthread_mutex_init(&mutex,NULL);

理解爲初始化互斥鎖吧。。

pthread_create(&pidgo,NULL,thread_go,0);

創建一個線程，第一個參數是線程ID，第二個描述爲空，第三個是線程函數，在這個函數裏寫需要在線程裏執行的事件，第四個是傳遞參數給函數。

pthread_mutex_lock(&mutex);

在一個線程中操作資源的時候就先把資源鎖起來，以免其他線程使用。

pthread_mutex_unlock(&mutex);

線程中使用完畢後就可以把資源釋放了。這樣別的線程就可以使用資源。

下面是源代碼：

HelloWorldScene.h

#pragma once

#include "cocos2d.h"

#include "Box2D/Box2D.h"

#include "SimpleAudioEngine.h"

#include "pthread.h"

#include<string>

class HelloWorld : public cocos2d::CCLayer
{
public:
    // Here's a difference. Method 'init' in cocos2d-x returns bool, instead of returning 'id' in cocos2d-iphone
    virtual bool init();

    // there's no 'id' in cpp, so we recommand to return the exactly class pointer
    static cocos2d::CCScene* scene();

    // a selector callback
    void menuCloseCallback(CCObject* pSender);

    // implement the "static node()" method manually
    CREATE_FUNC(HelloWorld);

    //Create two function and two tag of thread
    pthread_t pidrun,pidgo;
    static void* thread_run(void *r);
    static void* thread_go(void* r);

};


class Student
{
public :
    Student(void){};
    Student(std::string name,int age,std::string sex)
    {
        this->m_age=age;
        this->m_name=name;
        this->m_sex=sex;
    }
    ~Student()
    {
        cocos2d::CCLog("delete data");
    }

    std::string m_name;
    std::string m_sex;
    int m_age;
};

HelloWorldScene.cpp

#include "HelloWorldScene.h"

#include<windows.h>


using namespace cocos2d;

static int ticket=100;
static pthread_mutex_t mutex;

CCScene* HelloWorld::scene()
{
    CCScene * scene = NULL;
    do
    {
        // 'scene' is an autorelease object
        scene = CCScene::create();
        CC_BREAK_IF(! scene);

        // 'layer' is an autorelease object
        HelloWorld *layer = HelloWorld::create();
        CC_BREAK_IF(! layer);

        // add layer as a child to scene
        scene->addChild(layer);
    } while (0);

    // return the scene
    return scene;
}

// on "init" you need to initialize your instance
bool HelloWorld::init()
{
    bool bRet = false;
    do
    {
        //////////////////////////////////////////////////////////////////////////
        // super init first
        //////////////////////////////////////////////////////////////////////////

        CC_BREAK_IF(! CCLayer::init());

        //////////////////////////////////////////////////////////////////////////
        // add your codes below...
        //////////////////////////////////////////////////////////////////////////

        // 1. Add a menu item with "X" image, which is clicked to quit the program.

        // Create a "close" menu item with close icon, it's an auto release object.
        CCMenuItemImage *pCloseItem = CCMenuItemImage::create(
            "CloseNormal.png",
            "CloseSelected.png",
            this,
            menu_selector(HelloWorld::menuCloseCallback));
        CC_BREAK_IF(! pCloseItem);

        // Place the menu item bottom-right conner.
        pCloseItem->setPosition(ccp(CCDirector::sharedDirector()->getWinSize().width - 20, 20));

        // Create a menu with the "close" menu item, it's an auto release object.
        CCMenu* pMenu = CCMenu::create(pCloseItem, NULL);
        pMenu->setPosition(CCPointZero);
        CC_BREAK_IF(! pMenu);

        // Add the menu to HelloWorld layer as a child layer.
        this->addChild(pMenu, 1);

        // 2. Add a label shows "Hello World".

        // Create a label and initialize with string "Hello World".
        CCLabelTTF* pLabel = CCLabelTTF::create("Hello World", "Arial", 24);
        CC_BREAK_IF(! pLabel);

        // Get window size and place the label upper.
        CCSize size = CCDirector::sharedDirector()->getWinSize();
        pLabel->setPosition(ccp(size.width / 2, size.height - 50));

        // Add the label to HelloWorld layer as a child layer.
        this->addChild(pLabel, 1);

        // 3. Add add a splash screen, show the cocos2d splash image.
        CCSprite* pSprite = CCSprite::create("HelloWorld.png");
        CC_BREAK_IF(! pSprite);

        // Place the sprite on the center of the screen
        pSprite->setPosition(ccp(size.width/2, size.height/2));

        // Add the sprite to HelloWorld layer as a child layer.
        this->addChild(pSprite, 0);

        bRet = true;
    } while (0);

    return bRet;
}

void HelloWorld::menuCloseCallback(CCObject* pSender)
{
    // "close" menu item clicked
    //CCDirector::sharedDirector()->end();

    Student *temp=new Student(std::string("ThisisGame"),22,std::string("Boy"));
    pthread_mutex_init(&mutex,NULL);
    pthread_create(&pidrun,NULL,thread_run,temp);
    pthread_create(&pidgo,NULL,thread_go,0);
}


void* HelloWorld::thread_run(void* r)
{
    Student* s=(Student*)(r);
    CCLog("Student age=%d,name=%s,sex=%s",s->m_age,s->m_name.c_str(),s->m_sex.c_str());
    //delete s;
    while (true)
    {
        pthread_mutex_lock(&mutex);
        if(ticket>0)
        {
            CCLog("thread run sell %d",ticket);
            ticket--;
            pthread_mutex_unlock(&mutex);
        }
        else
        {
            pthread_mutex_unlock(&mutex);
            return NULL;
        }
#ifdef WIN32
        Sleep(1000);
#else
        Usleep(1);
#endif
    }
    return NULL;
}


void* HelloWorld::thread_go(void* r)
{
    while (true)
    {
        pthread_mutex_lock(&mutex);
        if(ticket>0)
        {
            CCLog("thread go sell %d",ticket);
            ticket--;
            pthread_mutex_unlock(&mutex);
        }
        else
        {
            pthread_mutex_unlock(&mutex);
            return NULL;
        }
#ifdef WIN32
        Sleep(1000);
#else
        Usleep(1);
#endif
    }
    return NULL;
}

程序運行結果：

然後是工程打包：

http://download.csdn.net/detail/cp790621656/5905699