# -*-c-*-
#
# $Id: 36MQGET,v 33.1 2009/07/02 21:09:12 biersma Exp $
#
# (c) 1999-2009 Morgan Stanley & Co. Incorporated
# See ..../src/LICENSE for terms of distribution.
#

SV *
MQGET(Hconn,Hobj,MsgDesc,GetMsgOpts,Length,CompCode,Reason)
        MQHCONN Hconn
        MQHOBJ  Hobj
        MQMD    MsgDesc
        MQGMO   GetMsgOpts
        MQLONG  Length
        MQLONG  CompCode = NO_INIT
        MQLONG  Reason = NO_INIT

    PREINIT:
        PMQCHAR pBuffer = NULL; /* guess at the beginning size */
        MQLONG  bufLen  = Length;
        MQLONG  dataLen = 0;
    CODE:
        CompCode = MQCC_FAILED;
        Reason = MQRC_UNEXPECTED_ERROR;
        sv_setiv(ST(5),(IV)CompCode);
        sv_setiv(ST(6),(IV)Reason);

        if ( (pBuffer = (PMQCHAR)malloc(bufLen)) == NULL ) {
            warn("Unable to allocate memory in MQGET!\n");
            XSRETURN_EMPTY;
        }

        /*
         * We set the MQMD and MQGMO version to 2, so users of
         * segmentation or grouping won't have to do this manually.
         */
        if (MsgDesc.Version < MQMD_VERSION_2) {
            MsgDesc.Version = MQMD_VERSION_2;
        }
        if (GetMsgOpts.Version < MQGMO_VERSION_2) {
            GetMsgOpts.Version = MQGMO_VERSION_2;
        }

        MQGET(Hconn,Hobj,&MsgDesc,&GetMsgOpts,bufLen,pBuffer,&dataLen,&CompCode,&Reason);
        Length = dataLen;
        if (CompCode != MQCC_FAILED) {
            RETVAL = newSVpvn(pBuffer,(dataLen < bufLen ? dataLen : bufLen));
        } else
            RETVAL = newSV(0);

        free(pBuffer);
    OUTPUT:
        RETVAL
        MsgDesc
        GetMsgOpts
        Length
        CompCode
        Reason