boost mutex lock学习及测试

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boost真是博大精深呀

这次学习了一下几本的锁和信号量。

其中包含：mutex recursive_mutex lock unique_lock basic_lockable_adpator timed_lockable_adpator，其他的adpator应该也都一样，例如（shared_lockable_adaptor等）

参看：http://www.boost.org/doc/libs/1_60_0/doc/html/thread/synchronization.html

#include <iostream>#include <boost/thread/thread.hpp>#include <boost/thread/mutex.hpp>#include <boost/thread/recursive_mutex.hpp>#include <boost/thread/locks.hpp>#include <boost/thread/lockable_concepts.hpp>#include <boost/thread/lockable_adapter.hpp>class BankAccount {    int _balance;    boost::mutex _mtx;public:    BankAccount(int init = 0): _balance(init){    }    void deposit(int amount) {        boost::lock_guard<boost::mutex> guard(_mtx);        _balance += amount;    }    void withDraw(int amount) {        boost::lock_guard<boost::mutex> guard(_mtx);        _balance += amount;    }    int getBalance() {        boost::lock_guard<boost::mutex> guard(_mtx);        return _balance;    }    void lock() {        _mtx.lock();    }    void unlock() {        _mtx.unlock();    }};class A : public boost::basic_lockable_adapter<boost::mutex> {public:    int _a;    A(int a = 10): _a(a){    }    void show() {        std::cout << _a << std::endl;    }};class B : public boost::basic_lockable_adapter<boost::recursive_mutex> { //可重入 即：可同一线程多次锁一个信号量public:    int _a;    B(int a = 10): _a(a){    }    void show() {        std::cout << _a << std::endl;    }};class C : public boost::timed_lockable_adapter<boost::mutex> {public:    int _a;    C(int a = 10): _a(a){    }    void show() {        std::cout << _a << std::endl;    }};void ATMWithDraw(BankAccount& account, int amount) {//    boost::recursive_mutex;    account.lock();    account.withDraw(amount);    account.withDraw(2);    account.unlock();}int main () {    BankAccount wangbing;    wangbing.deposit(100);    std::cout << wangbing.getBalance() << std::endl;    ATMWithDraw(wangbing, 10);    A lockable_a;    lockable_a.lock();    lockable_a.show();    lockable_a.unlock();   // B b;  //  boost::lock_guard<B> recusive_lock(b); //构造函数自动锁b    //C c;    //c.try_lock_until( boost::chrono::time_point);    std::cout << "wangbing" << std::endl;}

g++ lock.cpp -lboost_thread -lboost_system

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