Subversion Repositories Kolibri OS

Rev

Rev 6099 | Details | Compare with Previous | Last modification | View Log | RSS feed

Rev Author Line No. Line
4349 Serge 1
/* sys/signal.h */
2
 
3
#ifndef _SYS_SIGNAL_H
4
#define _SYS_SIGNAL_H
5
#ifdef __cplusplus
6
extern "C" {
7
#endif
8
 
9
#include "_ansi.h"
6099 serge 10
#include 
4349 Serge 11
#include 
12
#include 
6099 serge 13
#include 
14
#include 
4349 Serge 15
 
6099 serge 16
#if !defined(_SIGSET_T_DECLARED)
17
#define	_SIGSET_T_DECLARED
18
typedef	__sigset_t	sigset_t;
4921 Serge 19
#endif
4349 Serge 20
 
21
#if defined(__rtems__)
22
 
23
#if defined(_POSIX_REALTIME_SIGNALS)
24
 
25
/* sigev_notify values
26
   NOTE: P1003.1c/D10, p. 34 adds SIGEV_THREAD.  */
27
 
28
#define SIGEV_NONE   1  /* No asynchronous notification shall be delivered */
29
                        /*   when the event of interest occurs. */
30
#define SIGEV_SIGNAL 2  /* A queued signal, with an application defined */
31
                        /*  value, shall be delivered when the event of */
32
                        /*  interest occurs. */
33
#define SIGEV_THREAD 3  /* A notification function shall be called to */
34
                        /*   perform notification. */
35
 
36
/*  Signal Generation and Delivery, P1003.1b-1993, p. 63
37
    NOTE: P1003.1c/D10, p. 34 adds sigev_notify_function and
38
          sigev_notify_attributes to the sigevent structure.  */
39
 
40
union sigval {
41
  int    sival_int;    /* Integer signal value */
42
  void  *sival_ptr;    /* Pointer signal value */
43
};
44
 
45
struct sigevent {
46
  int              sigev_notify;               /* Notification type */
47
  int              sigev_signo;                /* Signal number */
48
  union sigval     sigev_value;                /* Signal value */
49
 
50
#if defined(_POSIX_THREADS)
51
  void           (*sigev_notify_function)( union sigval );
52
                                               /* Notification function */
53
  pthread_attr_t  *sigev_notify_attributes;    /* Notification Attributes */
54
#endif
55
};
56
 
57
/* Signal Actions, P1003.1b-1993, p. 64 */
58
/* si_code values, p. 66 */
59
 
60
#define SI_USER    1    /* Sent by a user. kill(), abort(), etc */
61
#define SI_QUEUE   2    /* Sent by sigqueue() */
62
#define SI_TIMER   3    /* Sent by expiration of a timer_settime() timer */
63
#define SI_ASYNCIO 4    /* Indicates completion of asycnhronous IO */
64
#define SI_MESGQ   5    /* Indicates arrival of a message at an empty queue */
65
 
66
typedef struct {
67
  int          si_signo;    /* Signal number */
68
  int          si_code;     /* Cause of the signal */
69
  union sigval si_value;    /* Signal value */
70
} siginfo_t;
71
#endif
72
 
73
/*  3.3.8 Synchronously Accept a Signal, P1003.1b-1993, p. 76 */
74
 
6099 serge 75
#define SA_NOCLDSTOP 0x1   /* Do not generate SIGCHLD when children stop */
76
#define SA_SIGINFO   0x2   /* Invoke the signal catching function with */
77
                           /*   three arguments instead of one. */
6536 serge 78
#if __BSD_VISIBLE || __XSI_VISIBLE >= 4 || __POSIX_VISIBLE >= 200809
6099 serge 79
#define SA_ONSTACK   0x4   /* Signal delivery will be on a separate stack. */
80
#endif
4349 Serge 81
 
82
/* struct sigaction notes from POSIX:
83
 *
84
 *  (1) Routines stored in sa_handler should take a single int as
85
 *      their argument although the POSIX standard does not require this.
86
 *      This is not longer true since at least POSIX.1-2008
87
 *  (2) The fields sa_handler and sa_sigaction may overlap, and a conforming
88
 *      application should not use both simultaneously.
89
 */
90
 
91
typedef void (*_sig_func_ptr)(int);
92
 
93
struct sigaction {
94
  int         sa_flags;       /* Special flags to affect behavior of signal */
95
  sigset_t    sa_mask;        /* Additional set of signals to be blocked */
96
                              /*   during execution of signal-catching */
97
                              /*   function. */
98
  union {
99
    _sig_func_ptr _handler;  /* SIG_DFL, SIG_IGN, or pointer to a function */
100
#if defined(_POSIX_REALTIME_SIGNALS)
101
    void      (*_sigaction)( int, siginfo_t *, void * );
102
#endif
103
  } _signal_handlers;
104
};
105
 
106
#define sa_handler    _signal_handlers._handler
107
#if defined(_POSIX_REALTIME_SIGNALS)
108
#define sa_sigaction  _signal_handlers._sigaction
109
#endif
110
 
111
#elif defined(__CYGWIN__)
112
#include 
113
#else
114
#define SA_NOCLDSTOP 1  /* only value supported now for sa_flags */
115
 
116
typedef void (*_sig_func_ptr)(int);
117
 
118
struct sigaction
119
{
120
	_sig_func_ptr sa_handler;
121
	sigset_t sa_mask;
122
	int sa_flags;
123
};
124
#endif /* defined(__rtems__) */
125
 
6536 serge 126
#if __BSD_VISIBLE || __XSI_VISIBLE >= 4 || __POSIX_VISIBLE >= 200809
6099 serge 127
/*
128
 * Minimum and default signal stack constants. Allow for target overrides
129
 * from .
130
 */
131
#ifndef	MINSIGSTKSZ
132
#define	MINSIGSTKSZ	2048
133
#endif
134
#ifndef	SIGSTKSZ
135
#define	SIGSTKSZ	8192
136
#endif
137
 
138
/*
139
 * Possible values for ss_flags in stack_t below.
140
 */
141
#define	SS_ONSTACK	0x1
142
#define	SS_DISABLE	0x2
143
 
144
#endif
145
 
146
/*
147
 * Structure used in sigaltstack call.
148
 */
149
typedef struct sigaltstack {
150
  void     *ss_sp;    /* Stack base or pointer.  */
151
  int       ss_flags; /* Flags.  */
152
  size_t    ss_size;  /* Stack size.  */
153
} stack_t;
154
 
4349 Serge 155
#define SIG_SETMASK 0	/* set mask with sigprocmask() */
156
#define SIG_BLOCK 1	/* set of signals to block */
157
#define SIG_UNBLOCK 2	/* set of signals to, well, unblock */
158
 
159
int _EXFUN(sigprocmask, (int how, const sigset_t *set, sigset_t *oset));
160
 
161
#if defined(_POSIX_THREADS)
162
int _EXFUN(pthread_sigmask, (int how, const sigset_t *set, sigset_t *oset));
163
#endif
164
 
165
#if defined(__CYGWIN__) || defined(__rtems__)
4921 Serge 166
#ifdef _COMPILING_NEWLIB
167
int _EXFUN(_kill, (pid_t, int));
6099 serge 168
#endif /* _COMPILING_NEWLIB */
169
#endif /* __CYGWIN__ || __rtems__ */
170
 
4349 Serge 171
int _EXFUN(kill, (pid_t, int));
6099 serge 172
 
6536 serge 173
#if __BSD_VISIBLE || __XSI_VISIBLE >= 4
4349 Serge 174
int _EXFUN(killpg, (pid_t, int));
175
int _EXFUN(sigaction, (int, const struct sigaction *, struct sigaction *));
176
int _EXFUN(sigaddset, (sigset_t *, const int));
177
int _EXFUN(sigdelset, (sigset_t *, const int));
178
int _EXFUN(sigismember, (const sigset_t *, int));
179
int _EXFUN(sigfillset, (sigset_t *));
180
int _EXFUN(sigemptyset, (sigset_t *));
181
int _EXFUN(sigpending, (sigset_t *));
182
int _EXFUN(sigsuspend, (const sigset_t *));
183
int _EXFUN(sigpause, (int));
184
 
6536 serge 185
#if !defined(__CYGWIN__) && !defined(__rtems__)
186
/* These depend upon the type of sigset_t, which right now
187
   is always a long.. They're in the POSIX namespace, but
188
   are not ANSI. */
189
#define sigaddset(what,sig) (*(what) |= (1<<(sig)), 0)
190
#define sigdelset(what,sig) (*(what) &= ~(1<<(sig)), 0)
191
#define sigemptyset(what)   (*(what) = 0, 0)
192
#define sigfillset(what)    (*(what) = ~(0), 0)
193
#define sigismember(what,sig) (((*(what)) & (1<<(sig))) != 0)
194
#endif /* !__CYGWIN__ && !__rtems__ */
195
#endif /* __BSD_VISIBLE || __XSI_VISIBLE >= 4 */
196
 
197
#if __BSD_VISIBLE || __XSI_VISIBLE >= 4 || __POSIX_VISIBLE >= 200809
6099 serge 198
int _EXFUN(sigaltstack, (const stack_t *__restrict, stack_t *__restrict));
199
#endif
200
 
4349 Serge 201
#if defined(_POSIX_THREADS)
202
#ifdef __CYGWIN__
203
#  ifndef _CYGWIN_TYPES_H
204
#    error You need the winsup sources or a cygwin installation to compile the cygwin version of newlib.
205
#  endif
206
#endif
207
int _EXFUN(pthread_kill, (pthread_t thread, int sig));
208
#endif
209
 
210
#if defined(_POSIX_REALTIME_SIGNALS)
211
 
212
/*  3.3.8 Synchronously Accept a Signal, P1003.1b-1993, p. 76
213
    NOTE: P1003.1c/D10, p. 39 adds sigwait().  */
214
 
215
int _EXFUN(sigwaitinfo, (const sigset_t *set, siginfo_t *info));
216
int _EXFUN(sigtimedwait,
217
  (const sigset_t *set, siginfo_t *info, const struct timespec  *timeout)
218
);
219
int _EXFUN(sigwait, (const sigset_t *set, int *sig));
220
 
221
/*  3.3.9 Queue a Signal to a Process, P1003.1b-1993, p. 78 */
222
int _EXFUN(sigqueue, (pid_t pid, int signo, const union sigval value));
223
 
224
#endif /* defined(_POSIX_REALTIME_SIGNALS) */
225
 
226
#if defined(___AM29K__)
227
/* These all need to be defined for ANSI C, but I don't think they are
228
   meaningful.  */
229
#define SIGABRT 1
230
#define SIGFPE 1
231
#define SIGILL 1
232
#define SIGINT 1
233
#define SIGSEGV 1
234
#define SIGTERM 1
235
/* These need to be defined for POSIX, and some others do too.  */
236
#define SIGHUP 1
237
#define SIGQUIT 1
238
#define NSIG 2
239
#elif defined(__GO32__)
240
#define SIGINT  1
241
#define SIGKILL 2
242
#define SIGPIPE 3
243
#define SIGFPE  4
244
#define SIGHUP  5
245
#define SIGTERM 6
246
#define SIGSEGV 7
247
#define SIGTSTP 8
248
#define SIGQUIT 9
249
#define SIGTRAP 10
250
#define SIGILL  11
251
#define SIGEMT  12
252
#define SIGALRM 13
253
#define SIGBUS  14
254
#define SIGLOST 15
255
#define SIGSTOP 16
256
#define SIGABRT 17
257
#define SIGUSR1	18
258
#define SIGUSR2	19
259
#define NSIG    20
260
#elif !defined(SIGTRAP)
261
#define	SIGHUP	1	/* hangup */
262
#define	SIGINT	2	/* interrupt */
263
#define	SIGQUIT	3	/* quit */
264
#define	SIGILL	4	/* illegal instruction (not reset when caught) */
265
#define	SIGTRAP	5	/* trace trap (not reset when caught) */
266
#define	SIGIOT	6	/* IOT instruction */
267
#define	SIGABRT 6	/* used by abort, replace SIGIOT in the future */
268
#define	SIGEMT	7	/* EMT instruction */
269
#define	SIGFPE	8	/* floating point exception */
270
#define	SIGKILL	9	/* kill (cannot be caught or ignored) */
271
#define	SIGBUS	10	/* bus error */
272
#define	SIGSEGV	11	/* segmentation violation */
273
#define	SIGSYS	12	/* bad argument to system call */
274
#define	SIGPIPE	13	/* write on a pipe with no one to read it */
275
#define	SIGALRM	14	/* alarm clock */
276
#define	SIGTERM	15	/* software termination signal from kill */
277
 
278
#if defined(__rtems__)
279
#define	SIGURG	16	/* urgent condition on IO channel */
280
#define	SIGSTOP	17	/* sendable stop signal not from tty */
281
#define	SIGTSTP	18	/* stop signal from tty */
282
#define	SIGCONT	19	/* continue a stopped process */
283
#define	SIGCHLD	20	/* to parent on child stop or exit */
284
#define	SIGCLD	20	/* System V name for SIGCHLD */
285
#define	SIGTTIN	21	/* to readers pgrp upon background tty read */
286
#define	SIGTTOU	22	/* like TTIN for output if (tp->t_local<OSTOP) */
287
#define	SIGIO	23	/* input/output possible signal */
288
#define	SIGPOLL	SIGIO	/* System V name for SIGIO */
289
#define	SIGWINCH 24	/* window changed */
290
#define	SIGUSR1 25	/* user defined signal 1 */
291
#define	SIGUSR2 26	/* user defined signal 2 */
292
 
293
/* Real-Time Signals Range, P1003.1b-1993, p. 61
294
   NOTE: By P1003.1b-1993, this should be at least RTSIG_MAX
295
         (which is a minimum of 8) signals.
296
 */
297
#define SIGRTMIN 27
298
#define SIGRTMAX 31
299
#define __SIGFIRSTNOTRT SIGHUP
300
#define __SIGLASTNOTRT  SIGUSR2
301
 
302
#define NSIG	32      /* signal 0 implied */
303
 
304
#elif defined(__svr4__)
305
/* svr4 specifics. different signals above 15, and sigaction. */
306
#define	SIGUSR1	16
307
#define SIGUSR2	17
308
#define SIGCLD	18
309
#define	SIGPWR	19
310
#define SIGWINCH 20
311
#define	SIGPOLL	22	/* 20 for x.out binaries!!!! */
312
#define	SIGSTOP	23	/* sendable stop signal not from tty */
313
#define	SIGTSTP	24	/* stop signal from tty */
314
#define	SIGCONT	25	/* continue a stopped process */
315
#define	SIGTTIN	26	/* to readers pgrp upon background tty read */
316
#define	SIGTTOU	27	/* like TTIN for output if (tp->t_local<OSTOP) */
317
#define NSIG	28
318
#else
319
#define	SIGURG	16	/* urgent condition on IO channel */
320
#define	SIGSTOP	17	/* sendable stop signal not from tty */
321
#define	SIGTSTP	18	/* stop signal from tty */
322
#define	SIGCONT	19	/* continue a stopped process */
323
#define	SIGCHLD	20	/* to parent on child stop or exit */
324
#define	SIGCLD	20	/* System V name for SIGCHLD */
325
#define	SIGTTIN	21	/* to readers pgrp upon background tty read */
326
#define	SIGTTOU	22	/* like TTIN for output if (tp->t_local<OSTOP) */
327
#define	SIGIO	23	/* input/output possible signal */
328
#define	SIGPOLL	SIGIO	/* System V name for SIGIO */
329
#define	SIGXCPU	24	/* exceeded CPU time limit */
330
#define	SIGXFSZ	25	/* exceeded file size limit */
331
#define	SIGVTALRM 26	/* virtual time alarm */
332
#define	SIGPROF	27	/* profiling time alarm */
333
#define	SIGWINCH 28	/* window changed */
334
#define	SIGLOST 29	/* resource lost (eg, record-lock lost) */
335
#define	SIGUSR1 30	/* user defined signal 1 */
336
#define	SIGUSR2 31	/* user defined signal 2 */
337
#define NSIG	32      /* signal 0 implied */
338
#endif
339
#endif
340
 
341
#ifdef __cplusplus
342
}
343
#endif
344
 
6099 serge 345
#if defined(__CYGWIN__)
6536 serge 346
#if __XSI_VISIBLE >= 4 || __POSIX_VISIBLE >= 200809
6099 serge 347
#include 
348
#endif
349
#endif
350
 
4349 Serge 351
#ifndef _SIGNAL_H_
352
/* Some applications take advantage of the fact that 
353
 * and  are equivalent in glibc.  Allow for that here.  */
354
#include 
355
#endif
356
#endif /* _SYS_SIGNAL_H */