signal.h raw
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 #define SEGV_MTEAERR 8
79 #define SEGV_MTESERR 9
80
81 #define BUS_ADRALN 1
82 #define BUS_ADRERR 2
83 #define BUS_OBJERR 3
84 #define BUS_MCEERR_AR 4
85 #define BUS_MCEERR_AO 5
86
87 #define CLD_EXITED 1
88 #define CLD_KILLED 2
89 #define CLD_DUMPED 3
90 #define CLD_TRAPPED 4
91 #define CLD_STOPPED 5
92 #define CLD_CONTINUED 6
93
94 union sigval {
95 int sival_int;
96 void *sival_ptr;
97 };
98
99 typedef struct {
100 #ifdef __SI_SWAP_ERRNO_CODE
101 int si_signo, si_code, si_errno;
102 #else
103 int si_signo, si_errno, si_code;
104 #endif
105 union {
106 char __pad[128 - 2*sizeof(int) - sizeof(long)];
107 struct {
108 union {
109 struct {
110 pid_t si_pid;
111 uid_t si_uid;
112 } __piduid;
113 struct {
114 int si_timerid;
115 int si_overrun;
116 } __timer;
117 } __first;
118 union {
119 union sigval si_value;
120 struct {
121 int si_status;
122 clock_t si_utime, si_stime;
123 } __sigchld;
124 } __second;
125 } __si_common;
126 struct {
127 void *si_addr;
128 short si_addr_lsb;
129 union {
130 struct {
131 void *si_lower;
132 void *si_upper;
133 } __addr_bnd;
134 unsigned si_pkey;
135 } __first;
136 } __sigfault;
137 struct {
138 long si_band;
139 int si_fd;
140 } __sigpoll;
141 struct {
142 void *si_call_addr;
143 int si_syscall;
144 unsigned si_arch;
145 } __sigsys;
146 } __si_fields;
147 } siginfo_t;
148 #define si_pid __si_fields.__si_common.__first.__piduid.si_pid
149 #define si_uid __si_fields.__si_common.__first.__piduid.si_uid
150 #define si_status __si_fields.__si_common.__second.__sigchld.si_status
151 #define si_utime __si_fields.__si_common.__second.__sigchld.si_utime
152 #define si_stime __si_fields.__si_common.__second.__sigchld.si_stime
153 #define si_value __si_fields.__si_common.__second.si_value
154 #define si_addr __si_fields.__sigfault.si_addr
155 #define si_addr_lsb __si_fields.__sigfault.si_addr_lsb
156 #define si_lower __si_fields.__sigfault.__first.__addr_bnd.si_lower
157 #define si_upper __si_fields.__sigfault.__first.__addr_bnd.si_upper
158 #define si_pkey __si_fields.__sigfault.__first.si_pkey
159 #define si_band __si_fields.__sigpoll.si_band
160 #define si_fd __si_fields.__sigpoll.si_fd
161 #define si_timerid __si_fields.__si_common.__first.__timer.si_timerid
162 #define si_overrun __si_fields.__si_common.__first.__timer.si_overrun
163 #define si_ptr si_value.sival_ptr
164 #define si_int si_value.sival_int
165 #define si_call_addr __si_fields.__sigsys.si_call_addr
166 #define si_syscall __si_fields.__sigsys.si_syscall
167 #define si_arch __si_fields.__sigsys.si_arch
168
169 struct sigaction {
170 union {
171 void (*sa_handler)(int);
172 void (*sa_sigaction)(int, siginfo_t *, void *);
173 } __sa_handler;
174 sigset_t sa_mask;
175 int sa_flags;
176 void (*sa_restorer)(void);
177 };
178 #define sa_handler __sa_handler.sa_handler
179 #define sa_sigaction __sa_handler.sa_sigaction
180
181 #define SA_UNSUPPORTED 0x00000400
182 #define SA_EXPOSE_TAGBITS 0x00000800
183
184 struct sigevent {
185 union sigval sigev_value;
186 int sigev_signo;
187 int sigev_notify;
188 union {
189 char __pad[64 - 2*sizeof(int) - sizeof(union sigval)];
190 pid_t sigev_notify_thread_id;
191 struct {
192 void (*sigev_notify_function)(union sigval);
193 pthread_attr_t *sigev_notify_attributes;
194 } __sev_thread;
195 } __sev_fields;
196 };
197
198 #define sigev_notify_thread_id __sev_fields.sigev_notify_thread_id
199 #define sigev_notify_function __sev_fields.__sev_thread.sigev_notify_function
200 #define sigev_notify_attributes __sev_fields.__sev_thread.sigev_notify_attributes
201
202 #define SIGEV_SIGNAL 0
203 #define SIGEV_NONE 1
204 #define SIGEV_THREAD 2
205 #define SIGEV_THREAD_ID 4
206
207 int __libc_current_sigrtmin(void);
208 int __libc_current_sigrtmax(void);
209
210 #define SIGRTMIN (__libc_current_sigrtmin())
211 #define SIGRTMAX (__libc_current_sigrtmax())
212
213 int kill(pid_t, int);
214
215 int sigemptyset(sigset_t *);
216 int sigfillset(sigset_t *);
217 int sigaddset(sigset_t *, int);
218 int sigdelset(sigset_t *, int);
219 int sigismember(const sigset_t *, int);
220
221 int sigprocmask(int, const sigset_t *__restrict, sigset_t *__restrict);
222 int sigsuspend(const sigset_t *);
223 int sigaction(int, const struct sigaction *__restrict, struct sigaction *__restrict);
224 int sigpending(sigset_t *);
225 int sigwait(const sigset_t *__restrict, int *__restrict);
226 int sigwaitinfo(const sigset_t *__restrict, siginfo_t *__restrict);
227 int sigtimedwait(const sigset_t *__restrict, siginfo_t *__restrict, const struct timespec *__restrict);
228 int sigqueue(pid_t, int, union sigval);
229
230 int pthread_sigmask(int, const sigset_t *__restrict, sigset_t *__restrict);
231 int pthread_kill(pthread_t, int);
232
233 void psiginfo(const siginfo_t *, const char *);
234 void psignal(int, const char *);
235
236 #endif
237
238 #if defined(_XOPEN_SOURCE) || defined(_BSD_SOURCE) || defined(_GNU_SOURCE)
239 int killpg(pid_t, int);
240 int sigaltstack(const stack_t *__restrict, stack_t *__restrict);
241 int sighold(int);
242 int sigignore(int);
243 int siginterrupt(int, int);
244 int sigpause(int);
245 int sigrelse(int);
246 void (*sigset(int, void (*)(int)))(int);
247 #define TRAP_BRKPT 1
248 #define TRAP_TRACE 2
249 #define TRAP_BRANCH 3
250 #define TRAP_HWBKPT 4
251 #define TRAP_UNK 5
252 #define POLL_IN 1
253 #define POLL_OUT 2
254 #define POLL_MSG 3
255 #define POLL_ERR 4
256 #define POLL_PRI 5
257 #define POLL_HUP 6
258 #define SS_ONSTACK 1
259 #define SS_DISABLE 2
260 #define SS_AUTODISARM (1U << 31)
261 #define SS_FLAG_BITS SS_AUTODISARM
262 #endif
263
264 #if defined(_BSD_SOURCE) || defined(_GNU_SOURCE)
265 #define NSIG _NSIG
266 typedef void (*sig_t)(int);
267
268 #define SYS_SECCOMP 1
269 #define SYS_USER_DISPATCH 2
270 #endif
271
272 #ifdef _GNU_SOURCE
273 typedef void (*sighandler_t)(int);
274 void (*bsd_signal(int, void (*)(int)))(int);
275 int sigisemptyset(const sigset_t *);
276 int sigorset (sigset_t *, const sigset_t *, const sigset_t *);
277 int sigandset(sigset_t *, const sigset_t *, const sigset_t *);
278
279 #define SA_NOMASK SA_NODEFER
280 #define SA_ONESHOT SA_RESETHAND
281 #endif
282
283 #define SIG_ERR ((void (*)(int))-1)
284 #define SIG_DFL ((void (*)(int)) 0)
285 #define SIG_IGN ((void (*)(int)) 1)
286
287 typedef int sig_atomic_t;
288
289 void (*signal(int, void (*)(int)))(int);
290 int raise(int);
291
292 #if _REDIR_TIME64
293 #if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
294 || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) \
295 || defined(_BSD_SOURCE)
296 __REDIR(sigtimedwait, __sigtimedwait_time64);
297 #endif
298 #endif
299
300 #ifdef __cplusplus
301 }
302 #endif
303
304 #endif
305