include/signal.h

   1 #ifndef _SIGNAL_H
   2 #define _SIGNAL_H
   3
   4 #ifdef __cplusplus
   5 extern "C" {
   6 #endif
   7
   8 #include <features.h>
   9
  10 #if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
  11  || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) \
  12  || defined(_BSD_SOURCE)
  13
  14 #ifdef _GNU_SOURCE
  15 #define __ucontext ucontext
  16 #endif
  17
  18 #define __NEED_size_t
  19 #define __NEED_pid_t
  20 #define __NEED_uid_t
  21 #define __NEED_struct_timespec
  22 #define __NEED_pthread_t
  23 #define __NEED_pthread_attr_t
  24 #define __NEED_time_t
  25 #define __NEED_clock_t
  26 #define __NEED_sigset_t
  27
  28 #include <bits/alltypes.h>
  29
  30 #define SIG_BLOCK     0
  31 #define SIG_UNBLOCK   1
  32 #define SIG_SETMASK   2
  33
  34 #define SI_ASYNCNL (-60)
  35 #define SI_TKILL (-6)
  36 #define SI_SIGIO (-5)
  37 #define SI_ASYNCIO (-4)
  38 #define SI_MESGQ (-3)
  39 #define SI_TIMER (-2)
  40 #define SI_QUEUE (-1)
  41 #define SI_USER 0
  42 #define SI_KERNEL 128
  43
  44 typedef struct sigaltstack stack_t;
  45
  46 #endif
  47
  48 #include <bits/signal.h>
  49
  50 #if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
  51  || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) \
  52  || defined(_BSD_SOURCE)
  53
  54 #define SIG_HOLD ((void (*)(int)) 2)
  55
  56 #define FPE_INTDIV 1
  57 #define FPE_INTOVF 2
  58 #define FPE_FLTDIV 3
  59 #define FPE_FLTOVF 4
  60 #define FPE_FLTUND 5
  61 #define FPE_FLTRES 6
  62 #define FPE_FLTINV 7
  63 #define FPE_FLTSUB 8
  64
  65 #define ILL_ILLOPC 1
  66 #define ILL_ILLOPN 2
  67 #define ILL_ILLADR 3
  68 #define ILL_ILLTRP 4
  69 #define ILL_PRVOPC 5
  70 #define ILL_PRVREG 6
  71 #define ILL_COPROC 7
  72 #define ILL_BADSTK 8
  73
  74 #define SEGV_MAPERR 1
  75 #define SEGV_ACCERR 2
  76 #define SEGV_BNDERR 3
  77 #define SEGV_PKUERR 4
  78
  79 #define BUS_ADRALN 1
  80 #define BUS_ADRERR 2
  81 #define BUS_OBJERR 3
  82 #define BUS_MCEERR_AR 4
  83 #define BUS_MCEERR_AO 5
  84
  85 #define CLD_EXITED 1
  86 #define CLD_KILLED 2
  87 #define CLD_DUMPED 3
  88 #define CLD_TRAPPED 4
  89 #define CLD_STOPPED 5
  90 #define CLD_CONTINUED 6
  91
  92 union sigval {
  93         int sival_int;
  94         void *sival_ptr;
  95 };
  96
  97 typedef struct {
  98 #ifdef __SI_SWAP_ERRNO_CODE
  99         int si_signo, si_code, si_errno;
 100 #else
 101         int si_signo, si_errno, si_code;
 102 #endif
 103         union {
 104                 char __pad[128 - 2*sizeof(int) - sizeof(long)];
 105                 struct {
 106                         union {
 107                                 struct {
 108                                         pid_t si_pid;
 109                                         uid_t si_uid;
 110                                 } __piduid;
 111                                 struct {
 112                                         int si_timerid;
 113                                         int si_overrun;
 114                                 } __timer;
 115                         } __first;
 116                         union {
 117                                 union sigval si_value;
 118                                 struct {
 119                                         int si_status;
 120                                         clock_t si_utime, si_stime;
 121                                 } __sigchld;
 122                         } __second;
 123                 } __si_common;
 124                 struct {
 125                         void *si_addr;
 126                         short si_addr_lsb;
 127                         union {
 128                                 struct {
 129                                         void *si_lower;
 130                                         void *si_upper;
 131                                 } __addr_bnd;
 132                                 unsigned si_pkey;
 133                         } __first;
 134                 } __sigfault;
 135                 struct {
 136                         long si_band;
 137                         int si_fd;
 138                 } __sigpoll;
 139                 struct {
 140                         void *si_call_addr;
 141                         int si_syscall;
 142                         unsigned si_arch;
 143                 } __sigsys;
 144         } __si_fields;
 145 } siginfo_t;
 146 #define si_pid     __si_fields.__si_common.__first.__piduid.si_pid
 147 #define si_uid     __si_fields.__si_common.__first.__piduid.si_uid
 148 #define si_status  __si_fields.__si_common.__second.__sigchld.si_status
 149 #define si_utime   __si_fields.__si_common.__second.__sigchld.si_utime
 150 #define si_stime   __si_fields.__si_common.__second.__sigchld.si_stime
 151 #define si_value   __si_fields.__si_common.__second.si_value
 152 #define si_addr    __si_fields.__sigfault.si_addr
 153 #define si_addr_lsb __si_fields.__sigfault.si_addr_lsb
 154 #define si_lower   __si_fields.__sigfault.__first.__addr_bnd.si_lower
 155 #define si_upper   __si_fields.__sigfault.__first.__addr_bnd.si_upper
 156 #define si_pkey    __si_fields.__sigfault.__first.si_pkey
 157 #define si_band    __si_fields.__sigpoll.si_band
 158 #define si_fd      __si_fields.__sigpoll.si_fd
 159 #define si_timerid __si_fields.__si_common.__first.__timer.si_timerid
 160 #define si_overrun __si_fields.__si_common.__first.__timer.si_overrun
 161 #define si_ptr     si_value.sival_ptr
 162 #define si_int     si_value.sival_int
 163 #define si_call_addr __si_fields.__sigsys.si_call_addr
 164 #define si_syscall __si_fields.__sigsys.si_syscall
 165 #define si_arch    __si_fields.__sigsys.si_arch
 166
 167 struct sigaction {
 168         union {
 169                 void (*sa_handler)(int);
 170                 void (*sa_sigaction)(int, siginfo_t *, void *);
 171         } __sa_handler;
 172         sigset_t sa_mask;
 173         int sa_flags;
 174         void (*sa_restorer)(void);
 175 };
 176 #define sa_handler   __sa_handler.sa_handler
 177 #define sa_sigaction __sa_handler.sa_sigaction
 178
 179 struct sigevent {
 180         union sigval sigev_value;
 181         int sigev_signo;
 182         int sigev_notify;
 183         void (*sigev_notify_function)(union sigval);
 184         pthread_attr_t *sigev_notify_attributes;
 185         char __pad[56-3*sizeof(long)];
 186 };
 187
 188 #define SIGEV_SIGNAL 0
 189 #define SIGEV_NONE 1
 190 #define SIGEV_THREAD 2
 191
 192 int __libc_current_sigrtmin(void);
 193 int __libc_current_sigrtmax(void);
 194
 195 #define SIGRTMIN  (__libc_current_sigrtmin())
 196 #define SIGRTMAX  (__libc_current_sigrtmax())
 197
 198 int kill(pid_t, int);
 199
 200 int sigemptyset(sigset_t *);
 201 int sigfillset(sigset_t *);
 202 int sigaddset(sigset_t *, int);
 203 int sigdelset(sigset_t *, int);
 204 int sigismember(const sigset_t *, int);
 205
 206 int sigprocmask(int, const sigset_t *__restrict, sigset_t *__restrict);
 207 int sigsuspend(const sigset_t *);
 208 int sigaction(int, const struct sigaction *__restrict, struct sigaction *__restrict);
 209 int sigpending(sigset_t *);
 210 int sigwait(const sigset_t *__restrict, int *__restrict);
 211 int sigwaitinfo(const sigset_t *__restrict, siginfo_t *__restrict);
 212 int sigtimedwait(const sigset_t *__restrict, siginfo_t *__restrict, const struct timespec *__restrict);
 213 int sigqueue(pid_t, int, union sigval);
 214
 215 int pthread_sigmask(int, const sigset_t *__restrict, sigset_t *__restrict);
 216 int pthread_kill(pthread_t, int);
 217
 218 void psiginfo(const siginfo_t *, const char *);
 219 void psignal(int, const char *);
 220
 221 #endif
 222
 223 #if defined(_XOPEN_SOURCE) || defined(_BSD_SOURCE) || defined(_GNU_SOURCE)
 224 int killpg(pid_t, int);
 225 int sigaltstack(const stack_t *__restrict, stack_t *__restrict);
 226 int sighold(int);
 227 int sigignore(int);
 228 int siginterrupt(int, int);
 229 int sigpause(int);
 230 int sigrelse(int);
 231 void (*sigset(int, void (*)(int)))(int);
 232 #define TRAP_BRKPT 1
 233 #define TRAP_TRACE 2
 234 #define TRAP_BRANCH 3
 235 #define TRAP_HWBKPT 4
 236 #define POLL_IN 1
 237 #define POLL_OUT 2
 238 #define POLL_MSG 3
 239 #define POLL_ERR 4
 240 #define POLL_PRI 5
 241 #define POLL_HUP 6
 242 #define SS_ONSTACK    1
 243 #define SS_DISABLE    2
 244 #define SS_AUTODISARM (1U << 31)
 245 #define SS_FLAG_BITS SS_AUTODISARM
 246 #endif
 247
 248 #if defined(_BSD_SOURCE) || defined(_GNU_SOURCE)
 249 #define NSIG _NSIG
 250 typedef void (*sig_t)(int);
 251 #endif
 252
 253 #ifdef _GNU_SOURCE
 254 typedef void (*sighandler_t)(int);
 255 void (*bsd_signal(int, void (*)(int)))(int);
 256 int sigisemptyset(const sigset_t *);
 257 int sigorset (sigset_t *, const sigset_t *, const sigset_t *);
 258 int sigandset(sigset_t *, const sigset_t *, const sigset_t *);
 259
 260 #define SA_NOMASK SA_NODEFER
 261 #define SA_ONESHOT SA_RESETHAND
 262 #endif
 263
 264 #define SIG_ERR  ((void (*)(int))-1)
 265 #define SIG_DFL  ((void (*)(int)) 0)
 266 #define SIG_IGN  ((void (*)(int)) 1)
 267
 268 typedef int sig_atomic_t;
 269
 270 void (*signal(int, void (*)(int)))(int);
 271 int raise(int);
 272
 273 #ifdef __cplusplus
 274 }
 275 #endif
 276
 277 #endif