jehanne: exploring a deep refactoring for signals
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@ -0,0 +1,37 @@
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#ifndef _SIGNAL_H_
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#define _SIGNAL_H_
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#define GIACOMO
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#include "_ansi.h"
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#include <sys/cdefs.h>
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#include <sys/signal.h>
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_BEGIN_STD_C
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typedef int sig_atomic_t; /* Atomic entity type (ANSI) */
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#if __BSD_VISIBLE
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typedef _sig_func_ptr sig_t; /* BSD naming */
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#endif
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#if __GNU_VISIBLE
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typedef _sig_func_ptr sighandler_t; /* glibc naming */
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#endif
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#define SIG_DFL ((_sig_func_ptr)0) /* Default action */
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#define SIG_IGN ((_sig_func_ptr)1) /* Ignore action */
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#define SIG_ERR ((_sig_func_ptr)-1) /* Error return */
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struct _reent;
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_sig_func_ptr _EXFUN(_signal_r, (struct _reent *, int, _sig_func_ptr));
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int _EXFUN(_raise_r, (struct _reent *, int));
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#ifndef _REENT_ONLY
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_sig_func_ptr _EXFUN(signal, (int, _sig_func_ptr));
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int _EXFUN(raise, (int));
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void _EXFUN(psignal, (int, const char *));
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#endif
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_END_STD_C
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#endif /* _SIGNAL_H_ */
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@ -32,8 +32,12 @@ extern "C" {
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#include <sys/_timespec.h>
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#include <sys/_pthreadtypes.h>
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#define _LIBPOSIX_H
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#include <posix.h> /* get libposix defines from posix.h */
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#undef _LIBPOSIX_H
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#define _SIGSET_T_DECLARED
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typedef unsigned long sigset_t;
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typedef PosixSignalMask sigset_t;
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/* sigev_notify values
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NOTE: P1003.1c/D10, p. 34 adds SIGEV_THREAD. */
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@ -73,11 +77,7 @@ struct sigevent {
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#define SI_ASYNCIO 4 /* Indicates completion of asycnhronous IO */
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#define SI_MESGQ 5 /* Indicates arrival of a message at an empty queue */
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typedef struct {
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int si_signo; /* Signal number */
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int si_code; /* Cause of the signal */
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union sigval si_value; /* Signal value */
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} siginfo_t;
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#define siginfo_t PosixSignalInfo;
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/* 3.3.8 Synchronously Accept a Signal, P1003.1b-1993, p. 76 */
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@ -96,10 +96,6 @@ typedef struct {
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* (2) The fields sa_handler and sa_sigaction may overlap, and a conforming
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* application should not use both simultaneously.
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*/
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typedef void (*_sig_func_ptr)(int);
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typedef void (*_sig_act_ptr)(int, siginfo_t *, void * );
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struct sigaction {
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int sa_flags; /* Special flags to affect behavior of signal */
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sigset_t sa_mask; /* Additional set of signals to be blocked */
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@ -144,9 +140,9 @@ typedef struct sigaltstack {
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} stack_t;
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#if __POSIX_VISIBLE
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#define SIG_SETMASK 0 /* set mask with sigprocmask() */
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#define SIG_BLOCK 1 /* set of signals to block */
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#define SIG_UNBLOCK 2 /* set of signals to, well, unblock */
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#define SIG_SETMASK PosixSPMSetMask
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#define SIG_BLOCK PosixSPMBlock
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#define SIG_UNBLOCK PosixSPMUnblock
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int sigprocmask (int how, const sigset_t *set, sigset_t *oset);
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#endif
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@ -198,49 +194,49 @@ int sigqueue (pid_t pid, int signo, const union sigval value);
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#endif /* __POSIX_VISIBLE >= 199309 */
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#define SIGHUP 1 /* hangup */
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#define SIGINT 2 /* interrupt */
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#define SIGQUIT 3 /* quit */
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#define SIGILL 4 /* illegal instruction (not reset when caught) */
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#define SIGTRAP 5 /* trace trap (not reset when caught) */
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#define SIGIOT 6 /* IOT instruction */
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#define SIGABRT 6 /* used by abort, replace SIGIOT in the future */
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#define SIGEMT 7 /* EMT instruction */
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#define SIGFPE 8 /* floating point exception */
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#define SIGKILL 9 /* kill (cannot be caught or ignored) */
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#define SIGBUS 10 /* bus error */
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#define SIGSEGV 11 /* segmentation violation */
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#define SIGSYS 12 /* bad argument to system call */
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#define SIGPIPE 13 /* write on a pipe with no one to read it */
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#define SIGALRM 14 /* alarm clock */
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#define SIGTERM 15 /* software termination signal from kill */
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#define SIGURG 16 /* urgent condition on IO channel */
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#define SIGSTOP 17 /* sendable stop signal not from tty */
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#define SIGTSTP 18 /* stop signal from tty */
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#define SIGCONT 19 /* continue a stopped process */
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#define SIGCHLD 20 /* to parent on child stop or exit */
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#define SIGCLD 20 /* System V name for SIGCHLD */
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#define SIGTTIN 21 /* to readers pgrp upon background tty read */
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#define SIGTTOU 22 /* like TTIN for output if (tp->t_local<OSTOP) */
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#define SIGIO 23 /* input/output possible signal */
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#define SIGPOLL SIGIO /* System V name for SIGIO */
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#define SIGXCPU 24 /* exceeded CPU time limit */
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#define SIGXFSZ 25 /* exceeded file size limit */
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#define SIGVTALRM 26 /* virtual time alarm */
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#define SIGPROF 27 /* profiling time alarm */
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#define SIGWINCH 28 /* window changed */
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#define SIGLOST 29 /* resource lost (eg, record-lock lost) */
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#define SIGUSR1 30 /* user defined signal 1 */
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#define SIGUSR2 31 /* user defined signal 2 */
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#define SIGHUP PosixSIGHUP /* hangup */
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#define SIGINT PosixSIGINT /* interrupt */
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#define SIGQUIT PosixSIGQUIT /* quit */
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#define SIGILL PosixSIGILL /* illegal instruction (not reset when caught) */
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#define SIGTRAP PosixSIGTRAP /* trace trap (not reset when caught) */
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#define SIGIOT PosixSIGIOT /* IOT instruction */
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#define SIGABRT PosixSIGABRT /* used by abort, replace SIGIOT in the future */
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#define SIGEMT PosixSIGEMT /* EMT instruction */
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#define SIGFPE PosixSIGFPE /* floating point exception */
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#define SIGKILL PosixSIGKILL /* kill (cannot be caught or ignored) */
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#define SIGBUS PosixSIGBUS /* bus error */
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#define SIGSEGV PosixSIGSEGV /* segmentation violation */
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#define SIGSYS PosixSIGSYS /* bad argument to system call */
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#define SIGPIPE PosixSIGPIPE /* write on a pipe with no one to read it */
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#define SIGALRM PosixSIGALRM /* alarm clock */
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#define SIGTERM PosixSIGTERM /* software termination signal from kill */
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#define SIGURG PosixSIGURG /* urgent condition on IO channel */
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#define SIGSTOP PosixSIGSTOP /* sendable stop signal not from tty */
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#define SIGTSTP PosixSIGTSTP /* stop signal from tty */
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#define SIGCONT PosixSIGCONT /* continue a stopped process */
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#define SIGCHLD PosixSIGCHLD /* to parent on child stop or exit */
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#define SIGCLD PosixSIGCLD /* System V name for SIGCHLD */
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#define SIGTTIN PosixSIGTTIN /* to readers pgrp upon background tty read */
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#define SIGTTOU PosixSIGTTOU /* like TTIN for output if (tp->t_local<OSTOP) */
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#define SIGIO PosixSIGIO /* input/output possible signal */
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#define SIGPOLL PosixSIGIO /* System V name for SIGIO */
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#define SIGXCPU PosixSIGXCPU /* exceeded CPU time limit */
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#define SIGXFSZ PosixSIGXFSZ /* exceeded file size limit */
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#define SIGVTALRM PosixSIGVTALRM /* virtual time alarm */
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#define SIGPROF PosixSIGPROF /* profiling time alarm */
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#define SIGWINCH PosixSIGWINCH /* window changed */
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#define SIGLOST PosixSIGLOST /* resource lost (eg, record-lock lost) */
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#define SIGUSR1 PosixSIGUSR1 /* user defined signal 1 */
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#define SIGUSR2 PosixSIGUSR2 /* user defined signal 2 */
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/* Real-Time Signals Range, P1003.1b-1993, p. 61
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NOTE: By P1003.1b-1993, this should be at least RTSIG_MAX
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(which is a minimum of 8) signals.
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*/
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#define SIGRTMIN 32
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#define SIGRTMAX 63
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#define SIGRTMIN PosixSIGRTMIN
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#define SIGRTMAX PosixSIGRTMAX
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#define NSIG 64 /* signal 0 implied */
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#define NSIG 64 /* signal 0 implied */
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#ifdef __cplusplus
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}
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