FakeClock.hxx

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#ifndef _OS_FAKECLOCK_HXX_
#define _OS_FAKECLOCK_HXX_
 
#include "executor/Executor.hxx"
#include "os/os.h"
#include "utils/Singleton.hxx"
 
struct FakeClockContent
{
protected:
    FakeClockContent(long long t)
        : lastTime_(t)
    {
    }
 
    long long lastTime_;
};
 
class FakeClock : private FakeClockContent, public Singleton<FakeClock>
{
public:
    FakeClock()
        : FakeClockContent(os_get_time_monotonic())
    {
    }
 
    void advance(long long nsec)
    {
        lastTime_ += nsec;
        // Wakes up all executors. This will cause them to evaluate if their
        // timers have something expired.
        ExecutorBase *current = ExecutorBase::link_head();
        while (current)
        {
            current->add(new CallbackExecutable([]() {}));
            current = current->link_next();
        }
    }
 
    long long get_time_nsec()
    {
        return lastTime_++;
    }
 
private:
};
 
#endif // _OS_FAKECLOCK_HXX_