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Annotation of prex-old/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: }