Annotation of prex/usr/lib/posix/signal/sigcompat.c, Revision 1.1
1.1 ! nbrk 1: /*
! 2: * Copyright (c) 1989, 1993
! 3: * The Regents of the University of California. All rights reserved.
! 4: *
! 5: * Redistribution and use in source and binary forms, with or without
! 6: * modification, are permitted provided that the following conditions
! 7: * are met:
! 8: * 1. Redistributions of source code must retain the above copyright
! 9: * notice, this list of conditions and the following disclaimer.
! 10: * 2. Redistributions in binary form must reproduce the above copyright
! 11: * notice, this list of conditions and the following disclaimer in the
! 12: * documentation and/or other materials provided with the distribution.
! 13: * 3. Neither the name of the University nor the names of its contributors
! 14: * may be used to endorse or promote products derived from this software
! 15: * without specific prior written permission.
! 16: *
! 17: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
! 18: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 19: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 20: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
! 21: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 22: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 23: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 24: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 25: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 26: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 27: * SUCH DAMAGE.
! 28: */
! 29:
! 30: #include <sys/param.h>
! 31: #include <signal.h>
! 32:
! 33: int
! 34: sigvec(signo, sv, osv)
! 35: int signo;
! 36: struct sigvec *sv, *osv;
! 37: {
! 38: int ret;
! 39:
! 40: if (sv)
! 41: sv->sv_flags ^= SV_INTERRUPT; /* !SA_INTERRUPT */
! 42: ret = sigaction(signo, (struct sigaction *)sv, (struct sigaction *)osv);
! 43: if (ret == 0 && osv)
! 44: osv->sv_flags ^= SV_INTERRUPT; /* !SA_INTERRUPT */
! 45: return (ret);
! 46: }
! 47:
! 48: int
! 49: sigsetmask(mask)
! 50: int mask;
! 51: {
! 52: int omask, n;
! 53:
! 54: n = sigprocmask(SIG_SETMASK, (sigset_t *) &mask, (sigset_t *) &omask);
! 55: if (n)
! 56: return (n);
! 57: return (omask);
! 58: }
! 59:
! 60: int
! 61: sigblock(mask)
! 62: int mask;
! 63: {
! 64: int omask, n;
! 65:
! 66: n = sigprocmask(SIG_BLOCK, (sigset_t *) &mask, (sigset_t *) &omask);
! 67: if (n)
! 68: return (n);
! 69: return (omask);
! 70: }
! 71:
! 72: int
! 73: sigpause(mask)
! 74: int mask;
! 75: {
! 76: return (sigsuspend((sigset_t *)&mask));
! 77: }
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