The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/nsprpub/pr/src/md/prosdep.c	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,76 @@
     1.4 +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
     1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
     1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.8 +
     1.9 +#include "prbit.h"
    1.10 +#include "prsystem.h"
    1.11 +
    1.12 +#ifdef XP_UNIX
    1.13 +#include <unistd.h>
    1.14 +#endif
    1.15 +#ifdef _WIN32
    1.16 +#include <windows.h>
    1.17 +#endif 
    1.18 +#ifdef XP_BEOS
    1.19 +#include <OS.h>
    1.20 +#endif
    1.21 +
    1.22 +PRInt32 _pr_pageShift;
    1.23 +PRInt32 _pr_pageSize;
    1.24 +
    1.25 +/*
    1.26 +** Get system page size
    1.27 +*/
    1.28 +static void GetPageSize(void)
    1.29 +{
    1.30 +	PRInt32 pageSize;
    1.31 +
    1.32 +    /* Get page size */
    1.33 +#ifdef XP_UNIX
    1.34 +#if defined BSDI || defined AIX \
    1.35 +        || defined LINUX || defined __GNU__ || defined __GLIBC__ \
    1.36 +        || defined FREEBSD || defined NETBSD || defined OPENBSD \
    1.37 +        || defined DARWIN || defined SYMBIAN
    1.38 +    _pr_pageSize = getpagesize();
    1.39 +#elif defined(HPUX)
    1.40 +    /* I have no idea. Don't get me started. --Rob */
    1.41 +    _pr_pageSize = sysconf(_SC_PAGE_SIZE);
    1.42 +#else
    1.43 +    _pr_pageSize = sysconf(_SC_PAGESIZE);
    1.44 +#endif
    1.45 +#endif /* XP_UNIX */
    1.46 +
    1.47 +#ifdef XP_BEOS
    1.48 +    _pr_pageSize = B_PAGE_SIZE;
    1.49 +#endif
    1.50 +
    1.51 +#ifdef XP_PC
    1.52 +#ifdef _WIN32
    1.53 +    SYSTEM_INFO info;
    1.54 +    GetSystemInfo(&info);
    1.55 +    _pr_pageSize = info.dwPageSize;
    1.56 +#else
    1.57 +    _pr_pageSize = 4096;
    1.58 +#endif
    1.59 +#endif /* XP_PC */
    1.60 +
    1.61 +	pageSize = _pr_pageSize;
    1.62 +	PR_CEILING_LOG2(_pr_pageShift, pageSize);
    1.63 +}
    1.64 +
    1.65 +PR_IMPLEMENT(PRInt32) PR_GetPageShift(void)
    1.66 +{
    1.67 +    if (!_pr_pageSize) {
    1.68 +	GetPageSize();
    1.69 +    }
    1.70 +    return _pr_pageShift;
    1.71 +}
    1.72 +
    1.73 +PR_IMPLEMENT(PRInt32) PR_GetPageSize(void)
    1.74 +{
    1.75 +    if (!_pr_pageSize) {
    1.76 +	GetPageSize();
    1.77 +    }
    1.78 +    return _pr_pageSize;
    1.79 +}