Annotation of embedaddon/libiconv/srclib/signal.in.h, revision 1.1.1.2
1.1 misho 1: /* A GNU-like <signal.h>.
2:
1.1.1.2 ! misho 3: Copyright (C) 2006-2011 Free Software Foundation, Inc.
1.1 misho 4:
5: This program is free software: you can redistribute it and/or modify
6: it under the terms of the GNU General Public License as published by
7: the Free Software Foundation; either version 3 of the License, or
8: (at your option) any later version.
9:
10: This program is distributed in the hope that it will be useful,
11: but WITHOUT ANY WARRANTY; without even the implied warranty of
12: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13: GNU General Public License for more details.
14:
15: You should have received a copy of the GNU General Public License
16: along with this program. If not, see <http://www.gnu.org/licenses/>. */
17:
18: #if __GNUC__ >= 3
19: @PRAGMA_SYSTEM_HEADER@
20: #endif
1.1.1.2 ! misho 21: @PRAGMA_COLUMNS@
1.1 misho 22:
1.1.1.2 ! misho 23: #if defined __need_sig_atomic_t || defined __need_sigset_t || defined _GL_ALREADY_INCLUDING_SIGNAL_H || (defined _SIGNAL_H && !defined __SIZEOF_PTHREAD_MUTEX_T)
! 24: /* Special invocation convention:
! 25: - Inside glibc header files.
! 26: - On glibc systems we have a sequence of nested includes
! 27: <signal.h> -> <ucontext.h> -> <signal.h>.
! 28: In this situation, the functions are not yet declared, therefore we cannot
! 29: provide the C++ aliases.
! 30: - On glibc systems with GCC 4.3 we have a sequence of nested includes
! 31: <csignal> -> </usr/include/signal.h> -> <sys/ucontext.h> -> <signal.h>.
! 32: In this situation, some of the functions are not yet declared, therefore
! 33: we cannot provide the C++ aliases. */
1.1 misho 34:
35: # @INCLUDE_NEXT@ @NEXT_SIGNAL_H@
36:
37: #else
38: /* Normal invocation convention. */
39:
1.1.1.2 ! misho 40: #ifndef _@GUARD_PREFIX@_SIGNAL_H
! 41:
! 42: #define _GL_ALREADY_INCLUDING_SIGNAL_H
! 43:
! 44: /* Define pid_t, uid_t.
! 45: Also, mingw defines sigset_t not in <signal.h>, but in <sys/types.h>.
! 46: On Solaris 10, <signal.h> includes <sys/types.h>, which eventually includes
! 47: us; so include <sys/types.h> now, before the second inclusion guard. */
! 48: #include <sys/types.h>
1.1 misho 49:
50: /* The include_next requires a split double-inclusion guard. */
51: #@INCLUDE_NEXT@ @NEXT_SIGNAL_H@
52:
1.1.1.2 ! misho 53: #undef _GL_ALREADY_INCLUDING_SIGNAL_H
1.1 misho 54:
1.1.1.2 ! misho 55: #ifndef _@GUARD_PREFIX@_SIGNAL_H
! 56: #define _@GUARD_PREFIX@_SIGNAL_H
1.1 misho 57:
1.1.1.2 ! misho 58: /* MacOS X 10.3, FreeBSD 6.4, OpenBSD 3.8, OSF/1 4.0, Solaris 2.6 declare
! 59: pthread_sigmask in <pthread.h>, not in <signal.h>.
! 60: But avoid namespace pollution on glibc systems.*/
! 61: #if (@GNULIB_PTHREAD_SIGMASK@ || defined GNULIB_POSIXCHECK) \
! 62: && ((defined __APPLE__ && defined __MACH__) || defined __FreeBSD__ || defined __OpenBSD__ || defined __osf__ || defined __sun) \
! 63: && ! defined __GLIBC__
! 64: # include <pthread.h>
! 65: #endif
! 66:
! 67: /* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */
! 68:
! 69: /* The definition of _GL_ARG_NONNULL is copied here. */
! 70:
! 71: /* The definition of _GL_WARN_ON_USE is copied here. */
1.1 misho 72:
73: /* On AIX, sig_atomic_t already includes volatile. C99 requires that
74: 'volatile sig_atomic_t' ignore the extra modifier, but C89 did not.
75: Hence, redefine this to a non-volatile type as needed. */
76: #if ! @HAVE_TYPE_VOLATILE_SIG_ATOMIC_T@
1.1.1.2 ! misho 77: # if !GNULIB_defined_sig_atomic_t
1.1 misho 78: typedef int rpl_sig_atomic_t;
1.1.1.2 ! misho 79: # undef sig_atomic_t
! 80: # define sig_atomic_t rpl_sig_atomic_t
! 81: # define GNULIB_defined_sig_atomic_t 1
! 82: # endif
! 83: #endif
! 84:
! 85: /* A set or mask of signals. */
! 86: #if !@HAVE_SIGSET_T@
! 87: # if !GNULIB_defined_sigset_t
! 88: typedef unsigned int sigset_t;
! 89: # define GNULIB_defined_sigset_t 1
! 90: # endif
1.1 misho 91: #endif
92:
1.1.1.2 ! misho 93: /* Define sighandler_t, the type of signal handlers. A GNU extension. */
! 94: #if !@HAVE_SIGHANDLER_T@
! 95: # ifdef __cplusplus
1.1 misho 96: extern "C" {
1.1.1.2 ! misho 97: # endif
! 98: # if !GNULIB_defined_sighandler_t
! 99: typedef void (*sighandler_t) (int);
! 100: # define GNULIB_defined_sighandler_t 1
! 101: # endif
! 102: # ifdef __cplusplus
! 103: }
! 104: # endif
1.1 misho 105: #endif
106:
107:
108: #if @GNULIB_SIGNAL_H_SIGPIPE@
109: # ifndef SIGPIPE
110: /* Define SIGPIPE to a value that does not overlap with other signals. */
111: # define SIGPIPE 13
112: # define GNULIB_defined_SIGPIPE 1
113: /* To actually use SIGPIPE, you also need the gnulib modules 'sigprocmask',
114: 'write', 'stdio'. */
115: # endif
116: #endif
117:
118:
119: /* Maximum signal number + 1. */
1.1.1.2 ! misho 120: #ifndef NSIG
! 121: # if defined __TANDEM
1.1 misho 122: # define NSIG 32
123: # endif
1.1.1.2 ! misho 124: #endif
! 125:
! 126:
! 127: #if @GNULIB_PTHREAD_SIGMASK@
! 128: # if @REPLACE_PTHREAD_SIGMASK@
! 129: # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
! 130: # undef pthread_sigmask
! 131: # define pthread_sigmask rpl_pthread_sigmask
! 132: # endif
! 133: _GL_FUNCDECL_RPL (pthread_sigmask, int,
! 134: (int how, const sigset_t *new_mask, sigset_t *old_mask));
! 135: _GL_CXXALIAS_RPL (pthread_sigmask, int,
! 136: (int how, const sigset_t *new_mask, sigset_t *old_mask));
! 137: # else
! 138: # if !@HAVE_PTHREAD_SIGMASK@
! 139: _GL_FUNCDECL_SYS (pthread_sigmask, int,
! 140: (int how, const sigset_t *new_mask, sigset_t *old_mask));
! 141: # endif
! 142: _GL_CXXALIAS_SYS (pthread_sigmask, int,
! 143: (int how, const sigset_t *new_mask, sigset_t *old_mask));
! 144: # endif
! 145: _GL_CXXALIASWARN (pthread_sigmask);
! 146: #elif defined GNULIB_POSIXCHECK
! 147: # undef pthread_sigmask
! 148: # if HAVE_RAW_DECL_PTHREAD_SIGMASK
! 149: _GL_WARN_ON_USE (pthread_sigmask, "pthread_sigmask is not portable - "
! 150: "use gnulib module pthread_sigmask for portability");
! 151: # endif
! 152: #endif
! 153:
! 154:
! 155: #if @GNULIB_SIGPROCMASK@
! 156: # if !@HAVE_POSIX_SIGNALBLOCKING@
! 157:
! 158: /* Maximum signal number + 1. */
! 159: # ifndef NSIG
! 160: # define NSIG 32
! 161: # endif
1.1 misho 162:
163: /* This code supports only 32 signals. */
1.1.1.2 ! misho 164: # if !GNULIB_defined_verify_NSIG_constraint
! 165: typedef int verify_NSIG_constraint[NSIG <= 32 ? 1 : -1];
! 166: # define GNULIB_defined_verify_NSIG_constraint 1
! 167: # endif
1.1 misho 168:
169: # endif
170:
171: /* Test whether a given signal is contained in a signal set. */
1.1.1.2 ! misho 172: # if @HAVE_POSIX_SIGNALBLOCKING@
! 173: /* This function is defined as a macro on MacOS X. */
! 174: # if defined __cplusplus && defined GNULIB_NAMESPACE
! 175: # undef sigismember
! 176: # endif
! 177: # else
! 178: _GL_FUNCDECL_SYS (sigismember, int, (const sigset_t *set, int sig)
! 179: _GL_ARG_NONNULL ((1)));
! 180: # endif
! 181: _GL_CXXALIAS_SYS (sigismember, int, (const sigset_t *set, int sig));
! 182: _GL_CXXALIASWARN (sigismember);
1.1 misho 183:
184: /* Initialize a signal set to the empty set. */
1.1.1.2 ! misho 185: # if @HAVE_POSIX_SIGNALBLOCKING@
! 186: /* This function is defined as a macro on MacOS X. */
! 187: # if defined __cplusplus && defined GNULIB_NAMESPACE
! 188: # undef sigemptyset
! 189: # endif
! 190: # else
! 191: _GL_FUNCDECL_SYS (sigemptyset, int, (sigset_t *set) _GL_ARG_NONNULL ((1)));
! 192: # endif
! 193: _GL_CXXALIAS_SYS (sigemptyset, int, (sigset_t *set));
! 194: _GL_CXXALIASWARN (sigemptyset);
1.1 misho 195:
196: /* Add a signal to a signal set. */
1.1.1.2 ! misho 197: # if @HAVE_POSIX_SIGNALBLOCKING@
! 198: /* This function is defined as a macro on MacOS X. */
! 199: # if defined __cplusplus && defined GNULIB_NAMESPACE
! 200: # undef sigaddset
! 201: # endif
! 202: # else
! 203: _GL_FUNCDECL_SYS (sigaddset, int, (sigset_t *set, int sig)
! 204: _GL_ARG_NONNULL ((1)));
! 205: # endif
! 206: _GL_CXXALIAS_SYS (sigaddset, int, (sigset_t *set, int sig));
! 207: _GL_CXXALIASWARN (sigaddset);
1.1 misho 208:
209: /* Remove a signal from a signal set. */
1.1.1.2 ! misho 210: # if @HAVE_POSIX_SIGNALBLOCKING@
! 211: /* This function is defined as a macro on MacOS X. */
! 212: # if defined __cplusplus && defined GNULIB_NAMESPACE
! 213: # undef sigdelset
! 214: # endif
! 215: # else
! 216: _GL_FUNCDECL_SYS (sigdelset, int, (sigset_t *set, int sig)
! 217: _GL_ARG_NONNULL ((1)));
! 218: # endif
! 219: _GL_CXXALIAS_SYS (sigdelset, int, (sigset_t *set, int sig));
! 220: _GL_CXXALIASWARN (sigdelset);
1.1 misho 221:
222: /* Fill a signal set with all possible signals. */
1.1.1.2 ! misho 223: # if @HAVE_POSIX_SIGNALBLOCKING@
! 224: /* This function is defined as a macro on MacOS X. */
! 225: # if defined __cplusplus && defined GNULIB_NAMESPACE
! 226: # undef sigfillset
! 227: # endif
! 228: # else
! 229: _GL_FUNCDECL_SYS (sigfillset, int, (sigset_t *set) _GL_ARG_NONNULL ((1)));
! 230: # endif
! 231: _GL_CXXALIAS_SYS (sigfillset, int, (sigset_t *set));
! 232: _GL_CXXALIASWARN (sigfillset);
1.1 misho 233:
234: /* Return the set of those blocked signals that are pending. */
1.1.1.2 ! misho 235: # if !@HAVE_POSIX_SIGNALBLOCKING@
! 236: _GL_FUNCDECL_SYS (sigpending, int, (sigset_t *set) _GL_ARG_NONNULL ((1)));
! 237: # endif
! 238: _GL_CXXALIAS_SYS (sigpending, int, (sigset_t *set));
! 239: _GL_CXXALIASWARN (sigpending);
1.1 misho 240:
241: /* If OLD_SET is not NULL, put the current set of blocked signals in *OLD_SET.
242: Then, if SET is not NULL, affect the current set of blocked signals by
243: combining it with *SET as indicated in OPERATION.
244: In this implementation, you are not allowed to change a signal handler
245: while the signal is blocked. */
1.1.1.2 ! misho 246: # if !@HAVE_POSIX_SIGNALBLOCKING@
! 247: # define SIG_BLOCK 0 /* blocked_set = blocked_set | *set; */
! 248: # define SIG_SETMASK 1 /* blocked_set = *set; */
! 249: # define SIG_UNBLOCK 2 /* blocked_set = blocked_set & ~*set; */
! 250: _GL_FUNCDECL_SYS (sigprocmask, int,
! 251: (int operation, const sigset_t *set, sigset_t *old_set));
! 252: # endif
! 253: _GL_CXXALIAS_SYS (sigprocmask, int,
! 254: (int operation, const sigset_t *set, sigset_t *old_set));
! 255: _GL_CXXALIASWARN (sigprocmask);
1.1 misho 256:
257: /* Install the handler FUNC for signal SIG, and return the previous
258: handler. */
1.1.1.2 ! misho 259: # ifdef __cplusplus
! 260: extern "C" {
! 261: # endif
! 262: # if !GNULIB_defined_function_taking_int_returning_void_t
! 263: typedef void (*_gl_function_taking_int_returning_void_t) (int);
! 264: # define GNULIB_defined_function_taking_int_returning_void_t 1
! 265: # endif
! 266: # ifdef __cplusplus
! 267: }
! 268: # endif
! 269: # if !@HAVE_POSIX_SIGNALBLOCKING@
! 270: # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
! 271: # define signal rpl_signal
! 272: # endif
! 273: _GL_FUNCDECL_RPL (signal, _gl_function_taking_int_returning_void_t,
! 274: (int sig, _gl_function_taking_int_returning_void_t func));
! 275: _GL_CXXALIAS_RPL (signal, _gl_function_taking_int_returning_void_t,
! 276: (int sig, _gl_function_taking_int_returning_void_t func));
! 277: # else
! 278: _GL_CXXALIAS_SYS (signal, _gl_function_taking_int_returning_void_t,
! 279: (int sig, _gl_function_taking_int_returning_void_t func));
! 280: # endif
! 281: _GL_CXXALIASWARN (signal);
1.1 misho 282:
283: /* Raise signal SIG. */
1.1.1.2 ! misho 284: # if !@HAVE_POSIX_SIGNALBLOCKING@ && GNULIB_defined_SIGPIPE
! 285: # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
! 286: # undef raise
! 287: # define raise rpl_raise
! 288: # endif
! 289: _GL_FUNCDECL_RPL (raise, int, (int sig));
! 290: _GL_CXXALIAS_RPL (raise, int, (int sig));
! 291: # else
! 292: _GL_CXXALIAS_SYS (raise, int, (int sig));
! 293: # endif
! 294: _GL_CXXALIASWARN (raise);
1.1 misho 295:
1.1.1.2 ! misho 296: #elif defined GNULIB_POSIXCHECK
! 297: # undef sigaddset
! 298: # if HAVE_RAW_DECL_SIGADDSET
! 299: _GL_WARN_ON_USE (sigaddset, "sigaddset is unportable - "
! 300: "use the gnulib module sigprocmask for portability");
! 301: # endif
! 302: # undef sigdelset
! 303: # if HAVE_RAW_DECL_SIGDELSET
! 304: _GL_WARN_ON_USE (sigdelset, "sigdelset is unportable - "
! 305: "use the gnulib module sigprocmask for portability");
1.1 misho 306: # endif
1.1.1.2 ! misho 307: # undef sigemptyset
! 308: # if HAVE_RAW_DECL_SIGEMPTYSET
! 309: _GL_WARN_ON_USE (sigemptyset, "sigemptyset is unportable - "
! 310: "use the gnulib module sigprocmask for portability");
! 311: # endif
! 312: # undef sigfillset
! 313: # if HAVE_RAW_DECL_SIGFILLSET
! 314: _GL_WARN_ON_USE (sigfillset, "sigfillset is unportable - "
! 315: "use the gnulib module sigprocmask for portability");
! 316: # endif
! 317: # undef sigismember
! 318: # if HAVE_RAW_DECL_SIGISMEMBER
! 319: _GL_WARN_ON_USE (sigismember, "sigismember is unportable - "
! 320: "use the gnulib module sigprocmask for portability");
! 321: # endif
! 322: # undef sigpending
! 323: # if HAVE_RAW_DECL_SIGPENDING
! 324: _GL_WARN_ON_USE (sigpending, "sigpending is unportable - "
! 325: "use the gnulib module sigprocmask for portability");
! 326: # endif
! 327: # undef sigprocmask
! 328: # if HAVE_RAW_DECL_SIGPROCMASK
! 329: _GL_WARN_ON_USE (sigprocmask, "sigprocmask is unportable - "
! 330: "use the gnulib module sigprocmask for portability");
! 331: # endif
! 332: #endif /* @GNULIB_SIGPROCMASK@ */
! 333:
1.1 misho 334:
1.1.1.2 ! misho 335: #if @GNULIB_SIGACTION@
! 336: # if !@HAVE_SIGACTION@
1.1 misho 337:
1.1.1.2 ! misho 338: # if !@HAVE_SIGINFO_T@
1.1 misho 339:
1.1.1.2 ! misho 340: # if !GNULIB_defined_siginfo_types
1.1 misho 341:
342: /* Present to allow compilation, but unsupported by gnulib. */
343: union sigval
344: {
345: int sival_int;
346: void *sival_ptr;
347: };
348:
349: /* Present to allow compilation, but unsupported by gnulib. */
350: struct siginfo_t
351: {
352: int si_signo;
353: int si_code;
354: int si_errno;
355: pid_t si_pid;
356: uid_t si_uid;
357: void *si_addr;
358: int si_status;
359: long si_band;
360: union sigval si_value;
361: };
362: typedef struct siginfo_t siginfo_t;
1.1.1.2 ! misho 363:
! 364: # define GNULIB_defined_siginfo_types 1
! 365: # endif
! 366:
! 367: # endif /* !@HAVE_SIGINFO_T@ */
1.1 misho 368:
369: /* We assume that platforms which lack the sigaction() function also lack
370: the 'struct sigaction' type, and vice versa. */
371:
1.1.1.2 ! misho 372: # if !GNULIB_defined_struct_sigaction
! 373:
1.1 misho 374: struct sigaction
375: {
376: union
377: {
378: void (*_sa_handler) (int);
379: /* Present to allow compilation, but unsupported by gnulib. POSIX
380: says that implementations may, but not must, make sa_sigaction
381: overlap with sa_handler, but we know of no implementation where
382: they do not overlap. */
383: void (*_sa_sigaction) (int, siginfo_t *, void *);
384: } _sa_func;
385: sigset_t sa_mask;
386: /* Not all POSIX flags are supported. */
387: int sa_flags;
388: };
1.1.1.2 ! misho 389: # define sa_handler _sa_func._sa_handler
! 390: # define sa_sigaction _sa_func._sa_sigaction
1.1 misho 391: /* Unsupported flags are not present. */
1.1.1.2 ! misho 392: # define SA_RESETHAND 1
! 393: # define SA_NODEFER 2
! 394: # define SA_RESTART 4
! 395:
! 396: # define GNULIB_defined_struct_sigaction 1
! 397: # endif
1.1 misho 398:
1.1.1.2 ! misho 399: _GL_FUNCDECL_SYS (sigaction, int, (int, const struct sigaction *restrict,
! 400: struct sigaction *restrict));
1.1 misho 401:
1.1.1.2 ! misho 402: # elif !@HAVE_STRUCT_SIGACTION_SA_SIGACTION@
1.1 misho 403:
1.1.1.2 ! misho 404: # define sa_sigaction sa_handler
1.1 misho 405:
1.1.1.2 ! misho 406: # endif /* !@HAVE_SIGACTION@, !@HAVE_STRUCT_SIGACTION_SA_SIGACTION@ */
1.1 misho 407:
1.1.1.2 ! misho 408: _GL_CXXALIAS_SYS (sigaction, int, (int, const struct sigaction *restrict,
! 409: struct sigaction *restrict));
! 410: _GL_CXXALIASWARN (sigaction);
! 411:
! 412: #elif defined GNULIB_POSIXCHECK
! 413: # undef sigaction
! 414: # if HAVE_RAW_DECL_SIGACTION
! 415: _GL_WARN_ON_USE (sigaction, "sigaction is unportable - "
! 416: "use the gnulib module sigaction for portability");
! 417: # endif
! 418: #endif
1.1 misho 419:
420: /* Some systems don't have SA_NODEFER. */
421: #ifndef SA_NODEFER
422: # define SA_NODEFER 0
423: #endif
424:
425:
1.1.1.2 ! misho 426: #endif /* _@GUARD_PREFIX@_SIGNAL_H */
! 427: #endif /* _@GUARD_PREFIX@_SIGNAL_H */
1.1 misho 428: #endif
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/cvsweb/back.gif){kind=icon}
Return to signal.in.h CVS log ![[TXT]](/icons/cvsweb/text.gif){kind=icon}
![[DIR]](/icons/cvsweb/dir.gif){kind=icon}
Up to [ELWIX - Embedded LightWeight unIX -] / embedaddon / libiconv / srclib