system.c

Netscape NSPR库源码

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 
 * The contents of this file are subject to the Mozilla Public
 * License Version 1.1 (the "License"); you may not use this file
 * except in compliance with the License. You may obtain a copy of
 * the License at http://www.mozilla.org/MPL/
 * 
 * Software distributed under the License is distributed on an "AS
 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
 * implied. See the License for the specific language governing
 * rights and limitations under the License.
 * 
 * The Original Code is the Netscape Portable Runtime (NSPR).
 * 
 * The Initial Developer of the Original Code is Netscape
 * Communications Corporation.  Portions created by Netscape are 
 * Copyright (C) 1998-2000 Netscape Communications Corporation.  All
 * Rights Reserved.
 * 
 * Contributor(s):
 * 
 * Alternatively, the contents of this file may be used under the
 * terms of the GNU General Public License Version 2 or later (the
 * "GPL"), in which case the provisions of the GPL are applicable 
 * instead of those above.  If you wish to allow use of your 
 * version of this file only under the terms of the GPL and not to
 * allow others to use your version of this file under the MPL,
 * indicate your decision by deleting the provisions above and
 * replace them with the notice and other provisions required by
 * the GPL.  If you do not delete the provisions above, a recipient
 * may use your version of this file under either the MPL or the
 * GPL.
 */

#include "prio.h"
#include "prmem.h"
#include "prprf.h"
#include "prsystem.h"

#include "plerror.h"

static char *tag[] =
{
    "PR_SI_HOSTNAME",
    "PR_SI_SYSNAME",
    "PR_SI_RELEASE",
    "PR_SI_ARCHITECTURE"
};

static PRSysInfo Incr(PRSysInfo *cmd)
{
    PRIntn tmp = (PRIntn)*cmd + 1;
    *cmd = (PRSysInfo)tmp;
    return (PRSysInfo)tmp;
}  /* Incr */

PRIntn main(PRIntn argc, char **argv)
{
    PRStatus rv;
    PRSysInfo cmd;
    PRFileDesc *output = PR_GetSpecialFD(PR_StandardOutput);

    char *info = (char*)PR_Calloc(SYS_INFO_BUFFER_LENGTH, 1);
    for (cmd = PR_SI_HOSTNAME; cmd <= PR_SI_ARCHITECTURE; Incr(&cmd))
    {
        rv = PR_GetSystemInfo(cmd, info, SYS_INFO_BUFFER_LENGTH);
        if (PR_SUCCESS == rv) PR_fprintf(output, "%s: %s\n", tag[cmd], info);
        else PL_FPrintError(output, tag[cmd]);
    }
    PR_DELETE(info);

    PR_fprintf(output, "Host page size is %d\n", PR_GetPageSize());
    PR_fprintf(output, "Page shift is %d\n", PR_GetPageShift());
    PR_fprintf(output, "Number of processors is: %d\n", PR_GetNumberOfProcessors());

    return 0;
}  /* main */

/* system.c */