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Annotation of 43BSDReno/contrib/isode-beta/psap2/psapselect.c, revision 1.1

1.1     ! root        1: /* psapselect.c - PPM: map descriptors */
        !             2: 
        !             3: #ifndef        lint
        !             4: static char *rcsid = "$Header: /f/osi/psap2/RCS/psapselect.c,v 7.0 89/11/23 22:14:36 mrose Rel $";
        !             5: #endif
        !             6: 
        !             7: /* 
        !             8:  * $Header: /f/osi/psap2/RCS/psapselect.c,v 7.0 89/11/23 22:14:36 mrose Rel $
        !             9:  *
        !            10:  *
        !            11:  * $Log:       psapselect.c,v $
        !            12:  * Revision 7.0  89/11/23  22:14:36  mrose
        !            13:  * Release 6.0
        !            14:  * 
        !            15:  */
        !            16: 
        !            17: /*
        !            18:  *                               NOTICE
        !            19:  *
        !            20:  *    Acquisition, use, and distribution of this module and related
        !            21:  *    materials are subject to the restrictions of a license agreement.
        !            22:  *    Consult the Preface in the User's Manual for the full terms of
        !            23:  *    this agreement.
        !            24:  *
        !            25:  */
        !            26: 
        !            27: 
        !            28: /* LINTLIBRARY */
        !            29: 
        !            30: #include <stdio.h>
        !            31: #include <signal.h>
        !            32: #include "ppkt.h"
        !            33: 
        !            34: /*    map presentation descriptors for select() */
        !            35: 
        !            36: int    PSelectMask (sd, mask, nfds, pi)
        !            37: int    sd;
        !            38: fd_set *mask;
        !            39: int    *nfds;
        !            40: struct PSAPindication *pi;
        !            41: {
        !            42:     SBV     smask;
        !            43:     register struct psapblk *pb;
        !            44:     struct SSAPindication   sis;
        !            45:     register struct SSAPabort  *sa = &sis.si_abort;
        !            46: 
        !            47:     missingP (mask);
        !            48:     missingP (nfds);
        !            49:     missingP (pi);
        !            50: 
        !            51:     smask = sigioblock ();
        !            52: 
        !            53:     if ((pb = findpblk (sd)) == NULL) {
        !            54:        (void) sigiomask (smask);
        !            55:        return psaplose (pi, PC_PARAMETER, NULLCP,
        !            56:                            "invalid presentation descriptor");
        !            57:     }
        !            58: 
        !            59:     if (SSelectMask (pb -> pb_fd, mask, nfds, &sis) == NOTOK)
        !            60:        switch (sa -> sa_reason) {
        !            61:            case SC_WAITING: 
        !            62:                (void) sigiomask (smask);
        !            63:                return psaplose (pi, PC_WAITING, NULLCP, NULLCP);
        !            64: 
        !            65:            default: 
        !            66:                (void) ss2pslose (pb, pi, "SSelectMask", sa);
        !            67:                freepblk (pb);
        !            68:                (void) sigiomask (smask);
        !            69:                return NOTOK;
        !            70:        }
        !            71: 
        !            72:     (void) sigiomask (smask);
        !            73: 
        !            74:     return OK;
        !            75: }

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