1 #include <stdio.h>

     2 #include <stdlib.h>

     3 #include <math.h>

     4 

     5 #include <sys/types.h>

     6 #include <sys/stat.h>

     7 #include <fcntl.h>

     8 #include <assert.h>

     9 #include <string.h>

    10 #include <limits.h>

    11 #include <unistd.h>

    12 #include <errno.h>

    13 

    14 #include "config.h"

    15 

    16 

    17 int catint(char *name) {

    18     FILE* f = fopen(name, "r");

    19     int i = 0;

    20     if (fscanf(f, "%d", &i) != 1)

    21         i = -1;

    22     fclose(f);

    23     return i;

    24 }

    25 

    26 char *color_stop;

    27 char *color_red;

    28 char *color_orange;

    29 char *color_green;

    30 char *color_none;

    31 

    32 char *color(int low,int mid,int rev,int value) {

    33     if (value>mid) {

    34         return rev ? color_red : color_green;

    35     } else if (value>low) {

    36         return color_orange;

    37     }

    38     return rev ? color_green : color_red;

    39 }

    40 

    41 int main(int argc, char *argv[]) {

    42     if (argc<=2) {

    43         fprintf(stderr, "Usage: %s <term|pango> <sensor1> [sensor2] ...\n", argv[0]);

    44         fflush(stderr);

    45         return 1;

    46     }

    47 

    48     char *color;

    49     if (!strcmp(argv[1],"term")) {

    50         color_stop = "\x1b[0m";

    51         color_red = "\x1b[1;31m";

    52         color_green = "\x1b[1;32m";

    53         color_orange = "\x1b[1;33m";

    54         color_none = color_stop;

    55     } else if (!strcmp(argv[1],"pango")) {

    56         color_stop = "</span>";

    57         color_red = "<span color='#f33'>";

    58         color_green = "<span color='#0f0'>";

    59         color_orange = "<span color='#fa0'>";

    60         color_none = "<span>";

    61     } else {

    62         color_stop = color_red = color_green = color_orange = color_none = "";

    63     }

    64 

    65     int sleeptime = UPDATE_PERIOD;

    66     int alertflash = 1;

    67     while (1) {

    68         int i;

    69         int maxtemp = 0;

    70         for (i=2;i<argc;i++) {

    71             int temp = catint(argv[i]);

    72             if (temp > maxtemp)

    73                 maxtemp = temp;

    74         }

    75 

    76         float ctemp = maxtemp/1000;

    77 

    78         if (ctemp <= GREEN_VALUE)

    79             color = color_green;

    80         else if (ctemp >= RED_VALUE)

    81             color = color_red;

    82         else if (ctemp >= ORANGE_VALUE)

    83             color = color_orange;

    84         else

    85             color = color_none;

    86 

    87 #ifdef FLASH_AFTER

    88         if (ctemp >= FLASH_AFTER) {

    89             sleeptime = 1;

    90             alertflash = !alertflash;

    91         } else {

    92             sleeptime = UPDATE_PERIOD;

    93             alertflash = 1;

    94         }

    95 #endif

    96         if (alertflash) {

    97             printf("%s%2.1f%s\n",color, ctemp, color_stop);

    98         } else {

    99             int len = snprintf(NULL, 0, "%2.1f", ctemp);

   100             for (i=0; i<len; i++)

   101                 printf(" ");

   102             printf("\n");

   103         }

   104         fflush(stdout);

   105         sleep(sleeptime);

   106     }

   107 }