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Configurable timer clock type (#1699)

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cryptocode 2019-02-05 01:08:21 +01:00 • committed by GitHub
commit b930b84ec6
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1 changed files with 8 additions and 8 deletions
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16
nano/lib/timer.hpp
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@ -16,7 +16,7 @@ enum class timer_state
}; };
/** Timer utility with nesting support */ /** Timer utility with nesting support */
template <typename UNIT = std::chrono::milliseconds> template <typename UNIT = std::chrono::milliseconds, typename CLOCK = std::chrono::steady_clock>
class timer class timer
{ {
public: public:
@ -73,14 +73,14 @@ public:
{ {
assert (state == nano::timer_state::stopped); assert (state == nano::timer_state::stopped);
state = nano::timer_state::started; state = nano::timer_state::started;
begin = std::chrono::high_resolution_clock::now (); begin = CLOCK::now ();
} }
/** Restarts the timer */ /** Restarts the timer */
void restart () void restart ()
{ {
state = nano::timer_state::started; state = nano::timer_state::started;
begin = std::chrono::high_resolution_clock::now (); begin = CLOCK::now ();
ticks = UNIT::zero (); ticks = UNIT::zero ();
measurements = 0; measurements = 0;
} }
@ -105,7 +105,7 @@ public:
assert (state == nano::timer_state::started); assert (state == nano::timer_state::started);
state = nano::timer_state::stopped; state = nano::timer_state::stopped;
auto end = std::chrono::high_resolution_clock::now (); auto end = CLOCK::now ();
ticks += std::chrono::duration_cast<UNIT> (end - begin); ticks += std::chrono::duration_cast<UNIT> (end - begin);
return ticks; return ticks;
} }
@ -121,21 +121,21 @@ public:
/** Returns the duration in UNIT since the timer was last started. */ /** Returns the duration in UNIT since the timer was last started. */
UNIT since_start () UNIT since_start ()
{ {
auto end = std::chrono::high_resolution_clock::now (); auto end = CLOCK::now ();
return std::chrono::duration_cast<UNIT> (end - begin); return std::chrono::duration_cast<UNIT> (end - begin);
} }
/** Returns true if the timer was last started longer than \p duration_a units ago*/ /** Returns true if the timer was last started longer than \p duration_a units ago*/
bool after_deadline (UNIT duration_a) bool after_deadline (UNIT duration_a)
{ {
auto end = std::chrono::high_resolution_clock::now (); auto end = CLOCK::now ();
return std::chrono::duration_cast<UNIT> (end - begin) > duration_a; return std::chrono::duration_cast<UNIT> (end - begin) > duration_a;
} }
/** Returns true if the timer was last started shorter than \p duration_a units ago*/ /** Returns true if the timer was last started shorter than \p duration_a units ago*/
bool before_deadline (UNIT duration_a) bool before_deadline (UNIT duration_a)
{ {
auto end = std::chrono::high_resolution_clock::now (); auto end = CLOCK::now ();
return std::chrono::duration_cast<UNIT> (end - begin) < duration_a; return std::chrono::duration_cast<UNIT> (end - begin) < duration_a;
} }
@ -200,7 +200,7 @@ private:
std::vector<timer> children; std::vector<timer> children;
nano::timer_state state{ nano::timer_state::stopped }; nano::timer_state state{ nano::timer_state::stopped };
std::string desc; std::string desc;
std::chrono::time_point<std::chrono::high_resolution_clock> begin; std::chrono::time_point<CLOCK> begin;
UNIT ticks{ 0 }; UNIT ticks{ 0 };
UNIT minimum{ UNIT::zero () }; UNIT minimum{ UNIT::zero () };
unsigned measurements{ 0 }; unsigned measurements{ 0 };