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         //Read interval
  24         read16(fd, c, tasks[ct].interval);
  25         //Read tasklength
  26         read16(fd, c, tasks[ct].tlen);
  27
  28         if(tasks[ct].tlen > MAXTASKSIZE)
  29                 die("Task is too long: %d\n", tasks[ct].tlen);
  30         //Read task bytecode
  31         for(int i = 0; i<tasks[ct].tlen; i++){
  32                 read(fd, tasks[ct].bc+i, 1);
  33                 debug("t[][%i]: 0x%02x %d\n", i,
  34                         tasks[ct].bc[i], tasks[ct].bc[i]);
  35         }
  36         //Return the task number for later removal
  37         debug("Received a task of length %d\n", tasks[ct].tlen);
  38         tasks[ct].used = true;
  39         return ct;
  40 }
  41
  42 void task_delete(int fd)
  43 {
  44         read(fd, &c, 1);
  45         tasks[c].used = false;
  46 }
  47
  48 struct task *task_get(int num)
  49 {
  50         return tasks[num].used ? &tasks[num] : NULL;
  51 }