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Annotation of coherent/b/kernel/io.386/msgstub.c, revision 1.1

1.1     ! root        1: /* $Header: /src386/kernel/io.386/RCS/msgstub.c,v 1.6 93/04/16 06:59:26 bin Exp Locker: bin $
        !             2:  *
        !             3:  *     The  information  contained herein  is a trade secret  of INETCO
        !             4:  *     Systems, and is confidential information.   It is provided under
        !             5:  *     a license agreement,  and may be copied or disclosed  only under
        !             6:  *     the terms of that agreement.   Any reproduction or disclosure of
        !             7:  *     this  material  without  the express  written  authorization  of
        !             8:  *     INETCO Systems or persuant to the license agreement is unlawful.
        !             9:  *
        !            10:  *     Copyright (c) 1985
        !            11:  *     An unpublished work by INETCO Systems, Ltd.
        !            12:  *     All rights reserved.
        !            13:  */
        !            14: 
        !            15: /*
        !            16:  * Message Device Driver Stub.
        !            17:  *
        !            18:  *     This module provides stubs for messaging routines accessed by the
        !            19:  *     operating system, and is linked in when messaging is not specified.
        !            20:  *
        !            21:  *                     Author: Allan Cornish, INETCO Systems Ltd., Nov 1986.
        !            22:  *
        !            23:  * $Log:       msgstub.c,v $
        !            24:  * Revision 1.6  93/04/16  06:59:26  bin
        !            25:  * Hal: kernel 76 update
        !            26:  * 
        !            27:  * Revision 1.2  92/01/06  12:29:17  hal
        !            28:  * Compile with cc.mwc.
        !            29:  * 
        !            30:  * Revision 2.1        88/09/03  13:09:42      src
        !            31:  * *** empty log message ***
        !            32:  * 
        !            33:  * Revision 1.1        88/03/24  17:05:52      src
        !            34:  * Initial revision
        !            35:  * 
        !            36:  * 86/12/12    Allan Cornish           /usr/src/sys/i8086/drv/msgstub.c
        !            37:  * Added 3rd argument to msgpoll() to support non-blocking polls.
        !            38:  *
        !            39:  * 85/11/21    Allan Cornish           /usr/src/sys/i8086/drv/msgstub.c
        !            40:  * Initial Revision.
        !            41:  */
        !            42: 
        !            43: #include <sys/coherent.h>
        !            44: #include <errno.h>
        !            45: 
        !            46: msgpoll( qid, ev, msec )
        !            47: int qid;
        !            48: int ev;
        !            49: int msec;
        !            50: {
        !            51:        return POLLNVAL;
        !            52: }
        !            53: 
        !            54: msgget()
        !            55: {
        !            56:        u.u_error = ENXIO;
        !            57: }
        !            58: 
        !            59: msgrcv()
        !            60: {
        !            61:        u.u_error = ENXIO;
        !            62: }
        !            63: 
        !            64: msgsnd()
        !            65: {
        !            66:        u.u_error = ENXIO;
        !            67: }
        !            68: 
        !            69: msgctl()
        !            70: {
        !            71:        u.u_error = ENXIO;
        !            72: }

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