diff options
| author | Jim Blandy <jimb@redhat.com> | 1993-03-11 07:16:39 +0000 |
|---|---|---|
| committer | Jim Blandy <jimb@redhat.com> | 1993-03-11 07:16:39 +0000 |
| commit | 5574059527e3949952eb37a97981729ed9d7570d (patch) | |
| tree | d13567cca1856f28412fc340b50b1ecfd69bc72c /src/syssignal.h | |
| parent | 194457ca6444f30e26a97c7b7dcff82b40ef0dbe (diff) | |
| download | emacs-5574059527e3949952eb37a97981729ed9d7570d.tar.gz | |
* syssignal.h (sigunblock): Add definition which works under SYSVr4.
* emacs.c (fatal_error_signal): Unblock the signal which we're
handling using sigunblock.
Diffstat (limited to 'src/syssignal.h')
| -rw-r--r-- | src/syssignal.h | 30 |
1 files changed, 21 insertions, 9 deletions
diff --git a/src/syssignal.h b/src/syssignal.h index 486f9efd623..dddaee80924 100644 --- a/src/syssignal.h +++ b/src/syssignal.h @@ -34,9 +34,9 @@ extern sigset_t empty_mask, full_mask, temp_mask; sigaddset (&_mask, SIG); \ _mask; \ }) -#else +#else /* ! defined (__GNUC__) */ #define sigmask(SIG) (sys_sigmask (SIG)) -#endif +#endif /* ! defined (__GNUC__) */ #define sigpause(SIG) sys_sigpause(SIG) #define sigblock(SIG) sys_sigblock(SIG) @@ -53,12 +53,24 @@ sigset_t sys_sigsetmask (sigset_t new_mask); #define sys_sigdel(MASK,SIG) sigdelset(&MASK,SIG) -#else /* not POSIX_SIGNALS */ +#else /* ! defined (POSIX_SIGNALS) */ +#ifdef USG5_4 + +#define sigunblock(sig) (sigprocmask(SIG_SETMASK, SIGFULLMASK & ~(sig), NULL)) + +#else +#ifdef USG + +#define sigunblock(sig) + +#else #define sigunblock(SIG) \ { SIGMASKTYPE omask = sigblock (SIGEMPTYMASK); sigsetmask (omask & ~SIG); } -#endif /* not POSIX_SIGNALS */ +#endif /* ! defined (USG) */ +#endif /* ! defined (USG5_4) */ +#endif /* ! defined (POSIX_SIGNALS) */ #ifndef SIGMASKTYPE #define SIGMASKTYPE int @@ -89,7 +101,7 @@ sigset_t sys_sigsetmask (sigset_t new_mask); #define sigblockx(sig) sigblock (sigmask (sig)) #define sigunblockx(sig) sigblock (SIGEMPTYMASK) #define sigpausex(sig) sigpause (0) -#endif /* not BSD4_1 */ +#endif /* BSD4_1 */ #ifdef BSD4_1 #define SIGIO SIGTINT @@ -97,7 +109,7 @@ sigset_t sys_sigsetmask (sigset_t new_mask); #define sigblockx(sig) sighold (sig) #define sigunblockx(sig) sigrelse (sig) #define sigpausex(sig) sigpause (sig) -#endif /* BSD4_1 */ +#endif /* ! defined (BSD4_1) */ /* On bsd, [man says] kill does not accept a negative number to kill a pgrp. Must do that using the killpg call. */ @@ -113,6 +125,6 @@ sigset_t sys_sigsetmask (sigset_t new_mask); #ifdef SIGCLD #ifndef SIGCHLD #define SIGCHLD SIGCLD -#endif /* not SIGCHLD */ -#endif /* SIGCLD */ -#endif /* not VMS */ +#endif /* SIGCHLD */ +#endif /* ! defined (SIGCLD) */ +#endif /* VMS */ |