1*b30d1939SAndy Fiddaman /*********************************************************************** 2*b30d1939SAndy Fiddaman * * 3*b30d1939SAndy Fiddaman * This software is part of the ast package * 4*b30d1939SAndy Fiddaman * Copyright (c) 1985-2011 AT&T Intellectual Property * 5*b30d1939SAndy Fiddaman * and is licensed under the * 6*b30d1939SAndy Fiddaman * Eclipse Public License, Version 1.0 * 7*b30d1939SAndy Fiddaman * by AT&T Intellectual Property * 8*b30d1939SAndy Fiddaman * * 9*b30d1939SAndy Fiddaman * A copy of the License is available at * 10*b30d1939SAndy Fiddaman * http://www.eclipse.org/org/documents/epl-v10.html * 11*b30d1939SAndy Fiddaman * (with md5 checksum b35adb5213ca9657e911e9befb180842) * 12*b30d1939SAndy Fiddaman * * 13*b30d1939SAndy Fiddaman * Information and Software Systems Research * 14*b30d1939SAndy Fiddaman * AT&T Research * 15*b30d1939SAndy Fiddaman * Florham Park NJ * 16*b30d1939SAndy Fiddaman * * 17*b30d1939SAndy Fiddaman * Glenn Fowler <gsf@research.att.com> * 18*b30d1939SAndy Fiddaman * David Korn <dgk@research.att.com> * 19*b30d1939SAndy Fiddaman * Phong Vo <kpv@research.att.com> * 20*b30d1939SAndy Fiddaman * * 21*b30d1939SAndy Fiddaman ***********************************************************************/ 22*b30d1939SAndy Fiddaman #pragma prototyped 23*b30d1939SAndy Fiddaman 24*b30d1939SAndy Fiddaman #include <ast.h> 25*b30d1939SAndy Fiddaman 26*b30d1939SAndy Fiddaman #if _lib_sigunblock 27*b30d1939SAndy Fiddaman 28*b30d1939SAndy Fiddaman NoN(sigunblock) 29*b30d1939SAndy Fiddaman 30*b30d1939SAndy Fiddaman #else 31*b30d1939SAndy Fiddaman 32*b30d1939SAndy Fiddaman #include <sig.h> 33*b30d1939SAndy Fiddaman 34*b30d1939SAndy Fiddaman #ifndef SIG_UNBLOCK 35*b30d1939SAndy Fiddaman #undef _lib_sigprocmask 36*b30d1939SAndy Fiddaman #endif 37*b30d1939SAndy Fiddaman 38*b30d1939SAndy Fiddaman int 39*b30d1939SAndy Fiddaman sigunblock(int s) 40*b30d1939SAndy Fiddaman { 41*b30d1939SAndy Fiddaman #if _lib_sigprocmask 42*b30d1939SAndy Fiddaman int op; 43*b30d1939SAndy Fiddaman sigset_t mask; 44*b30d1939SAndy Fiddaman 45*b30d1939SAndy Fiddaman sigemptyset(&mask); 46*b30d1939SAndy Fiddaman if (s) 47*b30d1939SAndy Fiddaman { 48*b30d1939SAndy Fiddaman sigaddset(&mask, s); 49*b30d1939SAndy Fiddaman op = SIG_UNBLOCK; 50*b30d1939SAndy Fiddaman } 51*b30d1939SAndy Fiddaman else op = SIG_SETMASK; 52*b30d1939SAndy Fiddaman return(sigprocmask(op, &mask, NiL)); 53*b30d1939SAndy Fiddaman #else 54*b30d1939SAndy Fiddaman #if _lib_sigsetmask 55*b30d1939SAndy Fiddaman return(sigsetmask(s ? (sigsetmask(0L) & ~sigmask(s)) : 0L)); 56*b30d1939SAndy Fiddaman #else 57*b30d1939SAndy Fiddaman NoP(s); 58*b30d1939SAndy Fiddaman return(0); 59*b30d1939SAndy Fiddaman #endif 60*b30d1939SAndy Fiddaman #endif 61*b30d1939SAndy Fiddaman } 62*b30d1939SAndy Fiddaman 63*b30d1939SAndy Fiddaman #endif 64