pillld.c

来自「开放源码的编译器open watcom 1.6.0版的源代码」· C语言 代码 · 共 96 行

/****************************************************************************
*
*                            Open Watcom Project
*
*    Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
*
*  ========================================================================
*
*    This file contains Original Code and/or Modifications of Original
*    Code as defined in and that are subject to the Sybase Open Watcom
*    Public License version 1.0 (the 'License'). You may not use this file
*    except in compliance with the License. BY USING THIS FILE YOU AGREE TO
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*    provided with the Original Code and Modifications, and is also
*    available at www.sybase.com/developer/opensource.
*
*    The Original Code and all software distributed under the License are
*    distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
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* Description:  WHEN YOU FIGURE OUT WHAT THIS FILE DOES, PLEASE
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****************************************************************************/


#include <string.h>
#include <errno.h>
#include "pillink.h"
#include "pillimp.h"
#include "pillctrl.h"

#define PILLSIG  0x4c4c4950UL

#include "qnxload.h"

int PILLSysLoad( const char *path, const pill_client_routines *cli,
                link_handle *lh, link_message *msg )
{
    int                         h;
    supp_header                 *pill;
    const pill_imp_routines     *(*init_func)( const pill_client_routines *, link_message * );

    msg->source = NULL;
    msg->id = LM_SYSTEM_ERROR;
    h = PathOpen( path, strlen( path ), "pil" );
    if( h < 0 ) {
        msg->data.code = errno;
        return( 0 );
    }
    SuppSegs = NULL;
    pill = ReadSupp( h );
    DIGCliClose( h );
    lh->sys = SuppSegs;
    if( pill == NULL || pill->sig != PILLSIG ) {
        msg->data.code = EINVAL;
        PILLSysUnload( lh->sys );
        return( 0 );
    }
    init_func = (void *)pill->init_rtn;
    lh->rtns = init_func( cli, msg );
    if( lh->rtns == NULL ) {
        /* don't free DLL yet, we need the message processor */
        msg->source = lh;
        return( 0 );
    }
    return( 1 );
}

void PILLSysUnload( link_handle *lh )
{
    UnloadSupp( lh->sys );
}

void PILLSysNoMem( link_message *msg )
{
    msg->source = NULL;
    msg->id = LM_SYSTEM_ERROR;
    msg->data.code = ENOMEM;
}

pill_private_func *PILLSysFixFunc( link_handle *lh, pill_private_func *func )
{
    return( func );
}

void PILLSysTriggerSet( link_instance *li )
{
}