apps/include/signal.h

   1 /*
   2     meinOS - A unix-like x86 microkernel operating system
   3     Copyright (C) 2008  Janosch Gräf <janosch.graef@gmx.net>
   4
   5     This program is free software: you can redistribute it and/or modify
   6     it under the terms of the GNU Lesser General Public License as published by
   7     the Free Software Foundation, either version 3 of the License, or
   8     (at your option) any later version.
   9
  10     This program is distributed in the hope that it will be useful,
  11     but WITHOUT ANY WARRANTY; without even the implied warranty of
  12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13     GNU Lesser General Public License for more details.
  14
  15     You should have received a copy of the GNU Lesser General Public License
  16     along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17 */
  18
  19 #ifndef _SIGNAL_H_
  20 #define _SIGNAL_H_
  21
  22 #include <sys/types.h>
  23 #include <syscall.h>
  24
  25 #define SIG_ERR -1
  26
  27 // Default signal handler
  28 #define SIG_IGN _signal_dfl_ignore
  29 #define SIG_DFL NULL
  30
  31 // Signals
  32 #define SIGHUP       1
  33 #define SIGINT       2
  34 #define SIGQUIT      3
  35 #define SIGILL       4
  36 #define SIGTRAP      5
  37 #define SIGABRT      6
  38 #define SIGBUS       7
  39 #define SIGFPE       8
  40 #define SIGKILL      9
  41 #define SIGUSR1     10
  42 #define SIGSEGV     11
  43 #define SIGUSR2     12
  44 #define SIGPIPE     13
  45 #define SIGALRM     14
  46 #define SIGTERM     15
  47 #define SIGSTKFLT   16
  48 #define SIGCHLD     17
  49 #define SIGCONT     18
  50 #define SIGSTOP     19
  51 #define SIGTSTP     20
  52 #define SIGTTIN     21
  53 #define SIGTTOU     22
  54 #define SIGURG      23
  55 #define SIGXCPU     24
  56 #define SIGXFSZ     25
  57 #define SIGVTALRM   26
  58 #define SIGPROF     27
  59 #define SIGWINCH    28
  60 #define SIGIO       29
  61 #define SIGPWR      30
  62 #define SIGSYS      31
  63 #define SIGRTMIN(x) (34+(x))
  64 #define SIGRTMAX(x) (64-(x))
  65
  66 typedef struct {
  67   int si_signo;
  68   int si_sigcode;
  69   int si_errno;
  70   pid_t si_pid;
  71   uid_t si_uid;
  72   void *si_addr;
  73   int si_status;
  74   long si_band;
  75 } siginfo_t;
  76
  77 typedef struct {
  78   size_t num_signals;
  79   int *sigs;
  80 } sigset_t;
  81
  82 struct sigaction {
  83   void (*sa_handler)(int sig);
  84   sigset_t sa_mask;
  85   int sa_flags;
  86   void (*sa_sigaction)(int sig,siginfo_t *siginfo,void *context);
  87 };
  88
  89 void (*signal(int sig,void (*handler)(int)))(int);
  90 void (*sysv_signal(int sig,void (*handler)(int)))(int);
  91 void _signal_dfl_ignore(int sig);
  92 void _signal_handler(int sig);
  93
  94 static inline int kill(pid_t pid,int sig) {
  95   return syscall_call(SYSCALL_SIG_SEND,2,pid,sig);
  96 }
  97
  98 static inline int raise(int sig) {
  99   _signal_handler(sig);
 100   //kill(getpid(),sig);
 101   return 0;
 102 }
 103
 104 #endif