client/task.c

   1 #include <stdlib.h>
   2 #include <string.h>
   3
   4 #ifndef STM
   5 #include <unistd.h>
   6 #include <stdio.h>
   7 #endif
   8
   9 #include "task.h"
  10 #include "interface.h"
  11
  12 struct task tasks[MAXTASKS];
  13
  14 void task_init(void)
  15 {
  16         memset(&tasks, 0, sizeof(struct task)*MAXTASKS);
  17 }
  18
  19 void task_register(void)
  20 {
  21         uint8_t ct;
  22         uint16_t i;
  23
  24         for(ct = 0; ct<MAXTASKS; ct++)
  25                 if(!tasks[ct].used)
  26                         break;
  27         if(ct == MAXTASKS)
  28                 die("Trying to add too much tasks...");
  29
  30         memset(&tasks[ct], 0, sizeof(struct task));
  31         //Read interval
  32         tasks[ct].interval = read16();
  33         //Read tasklength
  34         tasks[ct].tlen = read16();
  35         debug("task interval: %d, length: %d\n",
  36               tasks[ct].interval, tasks[ct].tlen);
  37
  38         if(tasks[ct].tlen > MAXTASKSIZE)
  39                 die("Task is too long: %d", tasks[ct].tlen);
  40         //Read task bytecode
  41         for(i = 0; i<tasks[ct].tlen; i++){
  42                 tasks[ct].bc[i] = read_byte();
  43 //              debug("t[][%i]: 0x%02x %d", i,
  44 //                      tasks[ct].bc[i], tasks[ct].bc[i]);
  45         }
  46         //Return the task number for later removal
  47         debug("Received a task of length %d", tasks[ct].tlen);
  48         tasks[ct].used = true;
  49         tasks[ct].lastrun = 0L;
  50
  51         write_byte('t');
  52         write16(ct);
  53         write_byte('\n');
  54 }
  55
  56 void task_delete(void)
  57 {
  58         uint8_t c = read16();
  59         tasks[c].used = false;
  60         write_byte('d');
  61         write16(c);
  62         write_byte('\n');
  63 }
  64
  65 struct task *task_get(int num)
  66 {
  67         return tasks[num].used ? &tasks[num] : NULL;
  68 }