Usermode/Libraries/libc.so_src/signals.c

   1 /*
   2  * AcessOS Basic C Library
   3  * signals.c
   4 */
   5 #include <syscalls.h>
   6 #include <stdlib.h>
   7 #include <signal.h>
   8 #include "lib.h"
   9
  10 // === CONSTANTS ===
  11 #define NUM_SIGNALS     32
  12
  13 // === GLOBALS ===
  14 sighandler_t    sighandlers[NUM_SIGNALS];
  15
  16 // === CODE ===
  17 sighandler_t signal(int num, sighandler_t handler)
  18 {
  19         sighandler_t    prev;
  20         if(num < 0 || num >= NUM_SIGNALS)       return NULL;
  21         prev = sighandlers[num];
  22         sighandlers[num] = handler;
  23         return prev;
  24 }