root/include/signal.h

/* */

INCLUDED FROM

   1 #ifndef _SIGNAL_H
   2 #define _SIGNAL_H
   3 
   4 #include <sys/types.h>
   5 
   6 typedef int sig_atomic_t;
   7 typedef unsigned int sigset_t;          /* 32 bits */
   8 
   9 #define _NSIG             32
  10 #define NSIG            _NSIG
  11 
  12 #define SIGHUP           1
  13 #define SIGINT           2
  14 #define SIGQUIT          3
  15 #define SIGILL           4
  16 #define SIGTRAP          5
  17 #define SIGABRT          6
  18 #define SIGIOT           6
  19 #define SIGUNUSED        7
  20 #define SIGFPE           8
  21 #define SIGKILL          9
  22 #define SIGUSR1         10
  23 #define SIGSEGV         11
  24 #define SIGUSR2         12
  25 #define SIGPIPE         13
  26 #define SIGALRM         14
  27 #define SIGTERM         15
  28 #define SIGSTKFLT       16
  29 #define SIGCHLD         17
  30 #define SIGCONT         18
  31 #define SIGSTOP         19
  32 #define SIGTSTP         20
  33 #define SIGTTIN         21
  34 #define SIGTTOU         22
  35 
  36 /*
  37  * Most of these aren't used yet (and perhaps never will),
  38  * so they are commented out.
  39  */
  40 
  41 /*
  42 #define SIGIO           23
  43 #define SIGPOLL         SIGIO
  44 #define SIGXCPU         24
  45 #define SIGXFSZ         25
  46 #define SIGVTALRM       26
  47 #define SIGPROF         27
  48 */
  49 
  50 #define SIGWINCH        28
  51 
  52 /*
  53 #define SIGLOST         29
  54 */
  55 
  56 /* Ok, I haven't implemented sigactions, but trying to keep headers POSIX */
  57 #define SA_NOCLDSTOP    1
  58 #define SA_INTERRUPT    0x20000000
  59 #define SA_NOMASK       0x40000000
  60 #define SA_ONESHOT      0x80000000
  61 
  62 #define SIG_BLOCK          0    /* for blocking signals */
  63 #define SIG_UNBLOCK        1    /* for unblocking signals */
  64 #define SIG_SETMASK        2    /* for setting the signal mask */
  65 
  66 #define SIG_DFL         ((void (*)(int))0)      /* default signal handling */
  67 #define SIG_IGN         ((void (*)(int))1)      /* ignore signal */
  68 #define SIG_ERR         ((void (*)(int))-1)     /* error return from signal */
  69 
  70 #ifdef notdef
  71 #define sigemptyset(mask) ((*(mask) = 0), 1)
  72 #define sigfillset(mask) ((*(mask) = ~0), 1)
  73 #endif
  74 
  75 struct sigaction {
  76         void (*sa_handler)(int);
  77         sigset_t sa_mask;
  78         int sa_flags;
  79         void (*sa_restorer)(void);
  80 };
  81 
  82 void (*signal(int _sig, void (*_func)(int)))(int);
  83 int raise(int sig);
  84 int kill(pid_t pid, int sig);
  85 int sigaddset(sigset_t *mask, int signo);
  86 int sigdelset(sigset_t *mask, int signo);
  87 int sigemptyset(sigset_t *mask);
  88 int sigfillset(sigset_t *mask);
  89 int sigismember(sigset_t *mask, int signo); /* 1 - is, 0 - not, -1 error */
  90 int sigpending(sigset_t *set);
  91 int sigprocmask(int how, sigset_t *set, sigset_t *oldset);
  92 int sigsuspend(sigset_t *sigmask);
  93 int sigaction(int sig, struct sigaction *act, struct sigaction *oldact);
  94 
  95 #endif /* _SIGNAL_H */

/* */