int/task.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <string.h>
   4 #include <unistd.h>
   5
   6 #include "misc.h"
   7 #include "task.h"
   8
   9 struct task tasks[MAXTASKS];// = {0};
  10 uint8_t c;
  11
  12 int task_register(int fd)
  13 {
  14         uint8_t ct;
  15
  16         for(ct = 0; ct<MAXTASKS; ct++)
  17                 if(!tasks[ct].used)
  18                         break;
  19         if(ct == MAXTASKS)
  20                 die("Trying to add too much tasks...\n");
  21
  22         memset(&tasks[ct], 0, sizeof(struct task));
  23         debug("Interval: ");
  24         //Read interval
  25         read16(fd, c, tasks[ct].interval);
  26         //Read tasklength
  27         debug("Length: ");
  28         read16(fd, c, tasks[ct].tlen);
  29
  30         if(tasks[ct].tlen > MAXTASKSIZE)
  31                 die("Task is too long: %d\n", tasks[ct].tlen);
  32         //Read task bytecode
  33         for(int i = 0; i<tasks[ct].tlen; i++){
  34                 debug("Read %d\n", i);
  35                 read(fd, tasks[ct].bc+i, 1);
  36                 debug("t[][%i]: %d\n", i,
  37                         tasks[ct].bc[i]);
  38         }
  39         //Return the task number for later removal
  40         debug("Received a task of length %d\n", tasks[ct].tlen);
  41         tasks[ct].used = true;
  42         return ct;
  43 }
  44
  45 void task_delete(int fd)
  46 {
  47         read(fd, &c, 1);
  48         tasks[c].used = false;
  49 }
  50
  51 struct task *task_get(int num)
  52 {
  53         return tasks[num].used ? &tasks[num] : NULL;
  54 }