Improve logic to handle fans stopping

PKGBUILD

@@ -1,5 +1,5 @@
 pkgname=fantasize
-pkgver=0.1.4
+pkgver=0.1.6
 pkgrel=1
 pkgdesc='C++ fan control for Linux'
 url='https://github.com/Tabascl/fantasize.git'

app/CMakeLists.txt

@@ -1,6 +1,6 @@
 cmake_minimum_required(VERSION 3.0)
 
-project(fantasize VERSION 0.1.4)
+project(fantasize VERSION 0.1.6)
 
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
 

app/include/fan/Fan.h

@@ -18,6 +18,7 @@ public:
   virtual int StartPWM() = 0;
 
   virtual void FindPWMLimits() = 0;
+  virtual void AdjustPWMLimits() = 0;
 };
 
 #endif // FAN_H_

app/include/fan/HwmonFan.h

@@ -1,9 +1,11 @@
 #ifndef HWMONFAN_H_
 #define HWMONFAN_H_
 
-#include <boost/json/object.hpp>
+#include <chrono>
 #include <memory>
 
+#include <boost/json/object.hpp>
+
 #include <fan/Fan.h>
 #include <pwm/PWMControl.h>
 #include <sensor/Sensor.h>
@@ -25,6 +27,7 @@ public:
   int StartPWM() override;
 
   void FindPWMLimits() override;
+  void AdjustPWMLimits() override;
 
   json toJson() const override;
 
@@ -37,6 +40,7 @@ private:
 
   int mMinPWM;
   int mStartPWM;
+  std::chrono::time_point<std::chrono::steady_clock> mLastAdjustmentTime;
 };
 
 #endif // HWMONFAN_H_

app/src/fan/FanCurve.cxx

@@ -44,9 +44,7 @@ void FanCurve::DoFanControl() {
     if (f->RPM() <= 0) {
       BOOST_LOG_TRIVIAL(warning) << "Fan stopped completely!";
       f->PWM(f->StartPWM());
-
+      f->AdjustPWMLimits();
-      BOOST_LOG_TRIVIAL(info) << "Adjusting minPWM of fan " << f->toString();
-      f->MinPWM(f->MinPWM() + 2);
     } else {
       f->PWM(targetFanPower);
     }

app/src/fan/HwmonFan.cxx

@@ -1,13 +1,15 @@
-#include <chrono>
 #include <iostream>
 #include <ostream>
 #include <thread>
 
-#include "pwm/PWMControl.h"
+#include <boost/log/attributes/named_scope.hpp>
-#include <boost/json/object.hpp>
+#include <boost/log/trivial.hpp>
+
 #include <fan/HwmonFan.h>
+#include <pwm/PWMControl.h>
 
 #define TIMEOUT 10
+#define STEP 2
 
 using namespace std;
 
@@ -33,22 +35,22 @@ void HwmonFan::MinPWM(int value) { mMinPWM = value; }
 
 int HwmonFan::MinPWM() { return mMinPWM; }
 
-int HwmonFan::StartPWM() { return mStartPWM; }
-
 void HwmonFan::StartPWM(int value) { mStartPWM = value; }
 
+int HwmonFan::StartPWM() { return mStartPWM; }
+
 void HwmonFan::FindPWMLimits() {
   cout << "Looking for minimal PWM" << endl;
   int minPWM = 0;
   mMinPWM = 0;
   mStartPWM = 0;
 
-  for (int curPWM = 100; curPWM > 0; curPWM -= 5) {
+  for (int curPWM = 100; curPWM > 0; curPWM -= STEP) {
     PWM(curPWM);
     this_thread::sleep_for(chrono::seconds(TIMEOUT));
 
     if (RPM() <= 0) {
-      minPWM = curPWM + 5;
+      minPWM = curPWM + STEP;
       break;
     }
   }
@@ -62,7 +64,7 @@ void HwmonFan::FindPWMLimits() {
     int startPWM = 0;
 
     cout << "Looking for start PWM!" << endl;
-    for (int curPWM = minPWM - 5; curPWM < 100; curPWM += 5) {
+    for (int curPWM = minPWM - STEP; curPWM < 100; curPWM += STEP) {
       PWM(curPWM);
       this_thread::sleep_for(chrono::seconds(TIMEOUT));
 
@@ -77,6 +79,20 @@ void HwmonFan::FindPWMLimits() {
   }
 }
 
+void HwmonFan::AdjustPWMLimits() {
+  BOOST_LOG_FUNCTION()
+
+  chrono::time_point now = chrono::steady_clock::now();
+
+  if ((now - mLastAdjustmentTime) >
+      chrono::duration(chrono::seconds(TIMEOUT))) {
+    BOOST_LOG_TRIVIAL(info) << "Increasing minimal fan speed";
+
+    mLastAdjustmentTime = now;
+    mMinPWM += 2;
+  }
+}
+
 json HwmonFan::toJson() const {
   json obj;
   obj = {mPWMControl->toJson(),

app/src/main.cxx

@@ -1,4 +1,3 @@
-#include <boost/log/expressions/formatters/named_scope.hpp>
 #include <csignal>
 #include <iostream>
 
@@ -6,6 +5,7 @@
 #include <boost/log/attributes/named_scope.hpp>
 #include <boost/log/core.hpp>
 #include <boost/log/expressions.hpp>
+#include <boost/log/expressions/formatters/named_scope.hpp>
 #include <boost/log/expressions/message.hpp>
 #include <boost/log/support/date_time.hpp>
 #include <boost/log/trivial.hpp>
@@ -20,6 +20,8 @@
 
 #include <App.h>
 
+#define PROJECT_VERSION "v0.1.6"
+
 namespace po = boost::program_options;
 namespace logging = boost::log;
 
@@ -59,7 +61,11 @@ void InitLogging(bool verbose) {
 }
 
 int main(int argc, char **argv) {
+  BOOST_LOG_FUNCTION()
+  BOOST_LOG_TRIVIAL(info) << "Version: " << PROJECT_VERSION;
+
   signal(SIGINT, signal_handler);
+  signal(SIGTERM, signal_handler);
 
   po::options_description desc("Allowed options");
   desc.add_options()("help,h", "produce help message")(