boost教程

由于项目需要，最近在学习boost 类库，在github上创建了一个boost_tutorial项目，欢迎有兴趣的同学丰富。

boost::thread 的用法如下，更多项目请移步boost_tutorial，其它将在github上陆续更新：

/* * boost::thread tutorial * * zdd / [e-mail] * https://github.com/zddhub/boost_tutorial */#include <iostream>#include <string>using namespace std;#include <boost/thread.hpp>//#1void run(){    cout << "Method #1" <<endl;}//#2boost::mutex mutex;class Count {    int _id;public:    Count(int id):_id(id) {}    void operator ()() {        for(int i = 0; i < 10; i++) {            boost::mutex::scoped_lock lock(mutex);            cout << "Count id:" << _id << " " << i <<endl;        }    }};//#3class InnerThread {public:    static void run() {        cout << "class inner thread: run and start must be static." <<endl;    }    static void start() {        boost::thread thread(run);        thread.join();    }};class InnerThread2 {public:    void run() {        cout << "class inner thread: use boost::bind" <<endl;    }    void start() {        boost::function0<void> f = boost::bind(&InnerThread2::run, this);        boost::thread thread(f);        thread.join();    }};//#4class SingletonThread {public:    void run() {        cout << "Singleton thread" <<endl;    }    void start() {        boost::function0<void> f = boost::bind(&SingletonThread::run, SingletonThread::getInstance());        boost::thread thread(f);        thread.join();    }    static SingletonThread* getInstance() {        if(!_instance) {            _instance = new SingletonThread;        }        return _instance;    }private:    SingletonThread() {}    static SingletonThread* _instance;};SingletonThread* SingletonThread::_instance = 0;//#5class Class {public:    void run(const std::string& str) {        cout <<str <<endl;    }    int add(int x, int y) {        cout << "x+y=" <<x+y<<endl;        return x+y;    }};//#6int add(int x, int y) {    return x+y;}int main(){    cout << "boost::thread: " << endl;    //#1: Simple method    boost::thread th1(&run);    cout << "main thread " <<endl;    th1.join();    //#2: Through class operator() method    boost::thread th21(Count(1));    boost::thread th22(Count(2));    th21.join();    th22.join();    //#3: Class inner thread : static method    InnerThread ith;    ith.start();    InnerThread::start();    InnerThread2 ith2;    ith2.start();    //#4: Singleton thread    SingletonThread *st = SingletonThread::getInstance();    st->start();    //#5: Outer class thread    Class cls;    boost::thread outer_thread(boost::bind(&Class::run, &cls, "Outer thread"));    outer_thread.join();    //#6: Complex method: with return value    boost::function2<int, int, int> f = &add;    boost::packaged_task<int> pt(boost::bind<int>(f, 1, 2));    boost::unique_future<int> fi = pt.get_future();    boost::thread th2(boost::move(pt));    fi.wait();    th2.join();    cout <<"x+y="<<fi.get()<<endl;    boost::packaged_task<int> pt_cls(boost::bind<int>(&Class::add, &cls, 1, 2));    boost::unique_future<int> fi_cls = pt_cls.get_future();    boost::thread th2_cls(boost::move(pt_cls));    fi_cls.wait();    th2_cls.join();    cout <<"x+y="<<fi_cls.get()<<endl;    /*     *related functions     *  boost::thread     *  boost::function     *  boost::bind     */    //some usages:    int x = 1, y =2;    cout << "x+y=" <<boost::bind<int>(f, _1, _2)(x,y)<<endl;    return 0;}