From 745ff334267ab92051bc8261a7daa0165c700fac Mon Sep 17 00:00:00 2001 From: Romain Forlot Date: Sun, 2 Apr 2017 23:46:56 +0200 Subject: [PATCH] Fix: wrong period operation without unit multiplicator Possible divsion by 0. Don't know if it is good to keep different time unit instead having one unit for project... Change-Id: I73cfc1ab72d3420d337f10a9b79bdf305a3a2bc7 Signed-off-by: Romain Forlot --- src/diagnostic/diagnostic-manager.cpp | 2 +- src/utils/timer.cpp | 12 ++++++------ src/utils/timer.hpp | 4 +++- 3 files changed, 10 insertions(+), 8 deletions(-) diff --git a/src/diagnostic/diagnostic-manager.cpp b/src/diagnostic/diagnostic-manager.cpp index 5834c35..e3a78d0 100644 --- a/src/diagnostic/diagnostic-manager.cpp +++ b/src/diagnostic/diagnostic-manager.cpp @@ -448,7 +448,7 @@ bool diagnostic_manager_t::clear_to_send(active_diagnostic_request_t* request) c int diagnostic_manager_t::reschedule_request(sd_event_source *s, uint64_t usec, active_diagnostic_request_t* adr) { - usec = usec + (uint64_t)(frequency_clock_t::frequency_to_period(adr->get_frequency_clock().get_frequency())*MICRO); + usec = usec + (uint64_t)(adr->get_frequency_clock().frequency_to_period()); DEBUG(binder_interface, "send_request: Event loop state: %d. usec: %ld", sd_event_get_state(afb_daemon_get_event_loop(binder_interface->daemon)), usec); if(sd_event_source_set_time(s, usec) >= 0) if(sd_event_source_set_enabled(s, SD_EVENT_ON) >= 0) diff --git a/src/utils/timer.cpp b/src/utils/timer.cpp index 540cfe0..a35a3e9 100644 --- a/src/utils/timer.cpp +++ b/src/utils/timer.cpp @@ -51,19 +51,19 @@ long long int system_time_s() } frequency_clock_t::frequency_clock_t() - : frequency_{10.0}, last_tick_{0}, time_function_{nullptr} + : unit_{1000000}, frequency_{10.0}, last_tick_{0}, time_function_{nullptr} {} frequency_clock_t::frequency_clock_t(float frequency) - : frequency_{frequency}, last_tick_{0}, time_function_{nullptr} + : unit_{1000000}, frequency_{frequency}, last_tick_{0}, time_function_{nullptr} {} /// @brief Return the period in ms given the frequency in hertz. -/// @param[in] frequency - Frequency to convert, in Hertz -float frequency_clock_t::frequency_to_period(float frequency) +/// @param[in] frequency - Frequency to convert, in hertz +float frequency_clock_t::frequency_to_period() { - return 1 / frequency; + return 1 / frequency_ * unit_; } bool frequency_clock_t::started() @@ -78,7 +78,7 @@ time_function_t frequency_clock_t::get_time_function() bool frequency_clock_t::elapsed(bool stagger) { - float period = frequency_to_period(frequency_); + float period = frequency_to_period(); float elapsed_time = 0; if(!started() && stagger) last_tick_ = get_time_function()() - (rand() % int(period)); diff --git a/src/utils/timer.hpp b/src/utils/timer.hpp index 5be0e3c..f565904 100644 --- a/src/utils/timer.hpp +++ b/src/utils/timer.hpp @@ -32,6 +32,7 @@ long long int system_time_s(); class frequency_clock_t { private: + float unit_; ///< unit_ - multiplicator to make operation to be in the right unit (milli, micro, nano, etc) float frequency_; ///< the clock frequency in Hz. unsigned long last_tick_; ///< the last time (in milliseconds since startup) that the clock ticked. time_function_t time_function_; ///< a function returning current time @@ -42,7 +43,8 @@ public: frequency_clock_t(float frequency, unsigned long last_tick, time_function_t time_function); float get_frequency() const; - static float frequency_to_period(float frequency); + + float frequency_to_period(); bool started(); time_function_t get_time_function(); bool elapsed(bool stagger); -- 2.16.6