rpclog.c   [plain text]


/*
 * Copyright (c) 2010 Apple Inc. All rights reserved.
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 *     notice, this list of conditions and the following disclaimer.
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 *     documentation and/or other materials provided with the distribution.
 * 3.  Neither the name of Apple Inc. ("Apple") nor the names of its
 *     contributors may be used to endorse or promote products derived from
 *     this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
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 *
 * Portions of this software have been released under the following terms:
 *
 * (c) Copyright 1989-1993 OPEN SOFTWARE FOUNDATION, INC.
 * (c) Copyright 1989-1993 HEWLETT-PACKARD COMPANY
 * (c) Copyright 1989-1993 DIGITAL EQUIPMENT CORPORATION
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 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1.  Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 * 2.  Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution.
 * 3.  Neither the name of Novell Inc. nor the names of its contributors
 *     may be used to endorse or promote products derived from this
 *     this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * @APPLE_LICENSE_HEADER_END@
 */

/*
**
**  NAME
**
**      rpclog.c
**
**  FACILITY:
**
**      Remote Procedure Call (RPC)
**
**  ABSTRACT:
**
**  Definitions of global variables.
**
**
*/

#if HAVE_CONFIG_H
#include <config.h>
#endif

#ifdef LOGPTS
#include <rpclog.h>

#ifdef ultrix
#include <nlist.h>
#include <unistd.h>
#endif /* ultrix */

static rpc_logpt_t      logpt_invisible;
rpc_logpt_ptr_t         rpc_g_log_ptr = &logpt_invisible;

/*
**++
**
**  ROUTINE NAME:       rpc__log_ptr_init
**
**  SCOPE:              PRIVATE - declared in rpclog.h
**
**  DESCRIPTION:
**
**  This routine will initialize the RPC logging service.
**
**  INPUTS:             none
**
**  INPUTS/OUTPUTS:     none
**
**  OUTPUTS:            none
**
**  IMPLICIT INPUTS:    none
**
**  IMPLICIT OUTPUTS:   none
**
**  FUNCTION VALUE:
**
**      log pointer     pointer value to location to which codes to
**                      be timestamped are written.
**
**  SIDE EFFECTS:       none
**
**--
**/

rpc_logpt_ptr_t rpc__log_ptr_init (void)
#ifdef ultrix
{
    rpc_logpt_ptr_t     ptr;
    unsigned long       logpt_addr_in_virt_mem;

#define QMEM_X 0
    struct nlist symtab[QMEM_X + 2];

    symtab[QMEM_X].n_name = "_qmem";
    symtab[QMEM_X + 1].n_name = NULL;

    nlist ("/vmunix", symtab);
    logpt_addr_in_virt_mem = (symtab[QMEM_X].n_value + LOGPT_ADDR_IN_QMEM);
    ptr = (rpc_logpt_ptr_t) (logpt_addr_in_virt_mem);

    return (ptr);
}

#endif /* ultrix */

#else
#ifndef __GNUC__
/*
 *  ANSI c does not allow a file to be compiled without declarations.
 *  If LOGPTS is not defined, we need to declare a dummy variable to
 *  compile under strict ansi c standards.
 */
static  char    _rpclog_dummy_ = 0, *_rpclog_dummy_p = &_rpclog_dummy_;
#endif
#endif /* LOGOPTS */