avbts_oscondition.hpp

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#ifndef AVBTS_OSSIGNAL_HPP
#define AVBTS_OSSIGNAL_HPP

class OSCondition {
private:
    int wait_count;
public:
    virtual bool wait() = 0;

    virtual bool wait_prelock() = 0;

    virtual bool signal() = 0;

    virtual ~OSCondition() = 0;
protected:
    OSCondition() {
        wait_count = 0;
    };

    void up() {
        ++wait_count;
    }

    void down() {
        --wait_count;
    }

    bool waiting() {
        return wait_count > 0;
    }
};

inline OSCondition::~OSCondition() { }

class OSConditionFactory {
public:
    virtual OSCondition * createCondition() = 0;

    virtual ~OSConditionFactory() = 0;
};

inline OSConditionFactory::~OSConditionFactory() {}


#endif