add args and better delay logic

src/main.c

@@ -2,6 +2,8 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <unistd.h>
+#include <time.h>
 
 const int digit_bitmaps[10][5][3] = {
         {{1,1,1},{1,0,1},{1,0,1},{1,0,1},{1,1,1}}, // 0
@@ -16,7 +18,7 @@ const int digit_bitmaps[10][5][3] = {
         {{1,1,1},{1,0,1},{1,1,1},{0,0,1},{1,1,1}}  // 9
 };
 
-void get_data(int *speed, int *power, int *bat, float *tq, int *rpm, int *eff, float *bat_temp, float *var_temp, float *mot_temp)
+void get_fake_data(int *speed, int *power, int *bat, float *tq, int *rpm, int *eff, float *bat_temp, float *var_temp, float *mot_temp)
 {
         *speed = rand() % 201;
         *power = rand() % 1251;
@@ -29,6 +31,13 @@ void get_data(int *speed, int *power, int *bat, float *tq, int *rpm, int *eff, f
         *mot_temp = (float)rand() / (float)RAND_MAX * 150.0f;
 }
 
+long now_ms(void)
+{
+    struct timespec ts;
+    clock_gettime(CLOCK_MONOTONIC, &ts);
+    return ts.tv_sec * 1000 + ts.tv_nsec / 1000000;
+}
+
 void win_clear(WINDOW *lwin) {
         int y, x;
         getmaxyx(lwin, y, x);
@@ -81,8 +90,29 @@ void win_number(WINDOW *lwin, int data, int digits){
         wrefresh(lwin);
 }
 
-int main()
+int main(int argc, char **argv)
 {	
+        int option;
+        int delay = 1;
+        int fake_data = 0;
+
+        while ((option = getopt(argc, argv, "d:hf")) !=-1) {
+                switch (option) {
+                        case 'd' :
+                                delay = atoi(optarg);
+                                if (delay < 0) {
+                                        delay = 0;
+                                }
+                                break;
+                        case 'f' :
+                                fake_data = 1;
+                                break;
+                        case 'h' :
+                                printf("Usage: ./dashboard [-d int DELAY by how much to slow down] [-h HELP] [-f generate fake data]\n");
+                                return(0);
+                }
+        }
+
         initscr();
         noecho();
         cbreak();
@@ -135,23 +165,38 @@ int main()
                 wrefresh(win[i]);
         }
 
-        int speed, power, bat, rpm, eff;
+        int speed = 0, power = 0, bat = 0, rpm = 0, eff = 0;
-        float tq, bat_temp, var_temp, mot_temp;
+        float tq = 0.0f, bat_temp = 0.0f, var_temp = 0.0f, mot_temp = 0.0f;
+        long t100 = 0, t1000 = 0;
         int ch = ERR;
         while(ch == ERR)
         {
-                get_data(&speed, &power, &bat, &tq, &rpm, &eff, &bat_temp, &var_temp, &mot_temp);
+                if (fake_data) {
+                        get_fake_data(&speed, &power, &bat, &tq, &rpm, &eff, &bat_temp, &var_temp, &mot_temp);
+                } else {
+                        //real_data()
+                }
+
+                long now = now_ms();
+
+                if (now - t100 >= 100 * delay) {
                         win_number(win[0], speed, 3);
                         win_number(win[1], power, 4);
-                win_number(win[2], bat, 3);
                         //win[3]
                         //win[4]
                         //win[5]
-                //win_number(win[6], bat_temp, 3);
+                        t100 = now;
-                //win_number(win[7], var_temp, 3);
+                }
-                //win_number(win[8], mot_temp, 3);
+                if (now - t1000 >= 1000 * delay){
+                        win_number(win[2], bat, 3);
+                        //win[6]
+                        //win[7]
+                        //win[8]
+                        t1000 = now;
+                }
                 //win[9];
                 ch = getch();
+                napms(10);
         };
 
         for (int i = 0; i < 10; i++) {