1 #ifndef MSP_TIME_TIMER_H_
2 #define MSP_TIME_TIMER_H_
5 #include <sigc++/sigc++.h>
6 #include <msp/core/mutex.h>
7 #include <msp/core/noncopyable.h>
8 #include <msp/core/semaphore.h>
10 #include "timestamp.h"
16 A class for executing functions in a deferred or periodical fashion. The add a
17 timer, use one of the add functions and connect a functor to the timeout signal
20 This class is thread-safe, to allow running timers in a separate thread.
22 class Timer: private NonCopyable
28 sigc::signal<bool> signal_timeout;
35 Slot(const TimeDelta &);
36 Slot(const TimeStamp &);
37 const TimeStamp &get_timeout() const { return timeout; }
46 bool operator<(const SlotProxy &) const;
49 std::vector<SlotProxy> slots;
52 bool blocking = false;
58 /** Adds a timer that will be executed periodically as long as the timeout
59 signal hander returns true. */
60 Slot &add(const TimeDelta &);
62 /** Adds a timer that will be executed once at a specific time. The return
63 value of the timeout signal handler is ignored. */
64 Slot &add(const TimeStamp &);
66 /** Cancels a previously added timer. */
69 /** Waits until a timer expires, then executes it. If no timers have been
70 set, blocks until one is added from another thread. */
73 /** Waits until a timer expires but at most the specified amount of time.
74 If a timer did expire before the timeout, it is executed. */
75 void tick(const TimeDelta &);
78 void do_tick(const TimeDelta &);
81 TimeStamp get_next_timeout() const;