compiler/clib/include/signal.h

   1 #ifndef _SIGNAL_H_
   2 #define _SIGNAL_H_
   3
   4 /*
   5     Copyright © 1995-2011, The AROS Development Team. All rights reserved.
   6     $Id$
   7
   8     System header file <signal.h>
   9     Based on SUSv2 with help from C99.
  10 */
  11
  12 #include <sys/cdefs.h>
  13
  14 typedef void __sighandler_t (int);
  15
  16 #define SIG_DFL     ((__sighandler_t *)0)   /* default signal handling */
  17 #define SIG_IGN     ((__sighandler_t *)1)   /* ignore this signal */
  18 #if !defined(_ANSI_SOURCE)
  19 #define SIG_HOLD    ((__sighandler_t *)2)   /* hold this signal */
  20 #endif
  21 #define SIG_ERR     ((__sighandler_t *)-1)  /* return from signal() on error */
  22
  23 typedef AROS_SIG_ATOMIC_T   sig_atomic_t;
  24
  25 /* Definitions to make signal manipulation easier. From FreeBSD */
  26 #define _SIG_IDX(sig)           ((sig) - 1)
  27 #define _SIG_WORD(sig)          (_SIG_IDX(sig) >> 5)
  28 #define _SIG_BIT(sig)           (1 << (_SIG_IDX(sig) & 31))
  29 #define _SIG_VALID(sig)         ((sig) < _SIG_MAXSIG && (sig) > 0)
  30
  31 /* Almost all the remaining definitions are not part of ANSI C */
  32 #if !defined(_ANSI_SOURCE)
  33
  34 #include <aros/types/sigset_t.h>
  35 #include <aros/types/pid_t.h>
  36
  37 #endif /* !_ANSI_SOURCE */
  38
  39 /* Signal values */
  40 #define SIGHUP          1       /* hangup */
  41 #define SIGINT          2       /* interrupt */
  42 #define SIGQUIT         3       /* quit */
  43 #define SIGILL          4       /* illegal instr. */
  44 #if !defined(_POSIX_SOURCE)
  45 #define SIGTRAP         5       /* trace/breakpoint track */
  46 #endif
  47 #define SIGABRT         6       /* abort() */
  48 #if !defined(_POSIX_SOURCE)
  49 #define SIGEMT          7       /* EMT instruction (emulator trap) */
  50 #endif
  51 #define SIGFPE          8       /* floating point exception */
  52 #define SIGKILL         9       /* kill (cannot be caught or ignored) */
  53 #if !defined(_POSIX_SOURCE)
  54 #define SIGBUS          10      /* bus error */
  55 #endif
  56 #define SIGSEGV         11      /* segmentation violation */
  57 #if !defined(_POSIX_SOURCE)
  58 #define SIGSYS          12      /* non-existent system call */
  59 #endif
  60 #define SIGPIPE         13      /* write on a pipe without a reader */
  61 #define SIGALRM         14      /* alarm clock */
  62 #define SIGTERM         15      /* software termination */
  63 #if !defined(_POSIX_SOURCE)
  64 #define SIGURG          16      /* urgent IO condition */
  65 #endif
  66 #define SIGSTOP         17      /* sendable stop signal */
  67 #define SIGTSTP         18      /* terminal stop signal */
  68 #define SIGCONT         19      /* continue a stopped process */
  69 #define SIGCHLD         20      /* to parent on child stop or exit */
  70 #define SIGTTIN         21      /* to reader to background tty read */
  71 #define SIGTTOU         22      /* to writer on background tty write */
  72 #if !defined(_POSIX_SOURCE)
  73 #define SIGXCPU         23      /* exceeded CPU time limit */
  74 #define SIGXFSZ         24      /* exceeded file size limit */
  75 #define SIGVTALRM       25      /* virtual timer alarm */
  76 #define SIGPROF         26      /* profiling time alarm */
  77 #define SIGWINCH        27      /* window size changes */
  78 #endif
  79 #define SIGUSR1         28      /* user defined signal 1 */
  80 #define SIGUSR2         29      /* user defined signal 2 */
  81
  82 #if !defined(_POSIX_SOURCE)
  83 /*  BSD defines SIGIO and SIGINFO, we should probably include these */
  84 #define SIGIO           30      /* IO event */
  85 #define SIGINFO         31      /* terminal info request */
  86 #endif
  87
  88 #if defined(_P1003_1B_VISIBLE)
  89
  90 /* Real time signals as specified by POSIX 1003.1B */
  91 #define SIGRTMIN        33
  92 #define SIGRT1          33
  93 #define SIGRT2          34
  94 #define SIGRT3          35
  95 #define SIGRT4          36
  96 #define SIGRT5          37
  97 #define SIGRT6          38
  98 #define SIGRT7          39
  99 #define SIGRT8          40
 100 #define SIGRT9          41
 101 #define SIGRT10         42
 102 #define SIGRT11         43
 103 #define SIGRT12         44
 104 #define SIGRT13         45
 105 #define SIGRT14         46
 106 #define SIGRT15         47
 107 #define SIGRT16         48
 108 #define SIGRT17         49
 109 #define SIGRT18         50
 110 #define SIGRT19         51
 111 #define SIGRT20         52
 112 #define SIGRT21         53
 113 #define SIGRT22         54
 114 #define SIGRT23         55
 115 #define SIGRT24         56
 116 #define SIGRT25         57
 117 #define SIGRT26         58
 118 #define SIGRT27         59
 119 #define SIGRT28         60
 120 #define SIGRT29         61
 121 #define SIGRT30         62
 122 #define SIGRT31         63
 123 #define SIGRT32         64
 124 #define SIGRTMAX        64
 125
 126 #define RTSIG_MAX       32
 127
 128 /*
 129     sigevent() is an advanced call that allows a process to request the
 130     system to perform more advanced signal delivery that calling signal
 131     handlers.
 132
 133     AROS allows for signals to be queued, delivered normally, or by
 134     creating a new thread and calling a function.
 135
 136     See the sigevent() manual page for more information.
 137 */
 138 #include <aros/types/sigevent_s.h>
 139
 140 /*
 141     Call a function.
 142     XXX Note that we do not support sigev_notify_attributes
 143 */
 144 #define sigev_notify_function   \
 145     __sigev_u.__sigev_notify_call.__sigenv_notify_function
 146
 147 #endif /* P1003_1B_VISIBLE */
 148
 149 #if !defined(_ANSI_SOURCE)
 150
 151 #include <aros/types/sigaction_s.h>
 152
 153 #if !defined(_POSIX_SOURCE)
 154
 155 #include <aros/types/size_t.h>
 156 #include <aros/types/stack_t.h>
 157
 158 struct sigstack
 159 {
 160     int              ss_onstack;        /* non-zero when signal stack in use */
 161     void            *ss_sp;             /* signal stack pointer */
 162 };
 163
 164 #define MINSIGSTKSZ     8192
 165 #define SIGSTKSZ        (MINSIGSTKSZ + 40960)
 166
 167 #include <aros/types/ucontext_t.h>
 168 #include <aros/types/siginfo_t.h>
 169
 170 /* Tag for struct timespec */
 171 struct timespec;
 172
 173 #endif /* !_POSIX_SOURCE */
 174
 175 /* Flags for sigprocmask() */
 176 #define SIG_BLOCK       1
 177 #define SIG_UNBLOCK     2
 178 #define SIG_SETMASK     34
 179
 180 #endif /* !_ANSI_SOURCE */
 181
 182 /* Function Prototypes */
 183 __BEGIN_DECLS
 184
 185 int     raise(int);
 186 __sighandler_t *signal(int, __sighandler_t *);
 187
 188 #if !defined(_ANSI_SOURCE)
 189 int     kill(pid_t, int);
 190
 191 int     sigaction(int, const struct sigaction *, struct sigaction *);
 192 int     sigaddset(sigset_t *, int);
 193 int     sigdelset(sigset_t *, int);
 194 int     sigemptyset(sigset_t *);
 195 int     sigfillset(sigset_t *);
 196 /* NOTIMPL int  sighold(int); */
 197 /* NOTIMPL int  sigignore(int); */
 198 int     sigismember(const sigset_t *, int);
 199 int     sigpending(sigset_t *);
 200 int     sigprocmask(int, const sigset_t *, sigset_t *);
 201 /* NOTIMPL int  sigrelse(int); */
 202 /* NOTIMPL int  sigset(__sighandler_t *, int); */
 203 int     sigsuspend(const sigset_t *);
 204 /* NOTIMPL int  sigwait(const sigset_t *, int *); */
 205
 206 #if !defined(_POSIX_SOURCE)
 207 /* NOTIMPL int  killpg(pid_t, int); */
 208 /* NOTIMPL int  sigaltstack(const stack_t *, stack_t *); */
 209 /* NOTIMPL int  siginterrupt(int); */
 210 /* NOTIMPL int  sigpause(int); */
 211 #endif /* !_POSIX_SOURCE */
 212
 213 #if defined(_P1003_1B_VISIBLE)
 214 /* NOTIMPL int  sigqueue(pid_t, int, const union sigval); */
 215 /* NOTIMPL int  sigtimedwait(const sigset_t *, siginfo_t *, const struct timespec *); */
 216 /* NOTIMPL int  sigwaitinfo(const sigset_t *, siginfo_t *); */
 217 #endif /* _P1003_1B */
 218
 219 #endif /* !_ANSI_SOURCE */
 220
 221 __END_DECLS
 222
 223 #endif /* _SIGNAL_H_ */