nsprpub/pr/src/md/prosdep.c@6474c204b198 (annotated)
nsprpub/pr/src/md/prosdep.c
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
| michael@0 | 2 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 3 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 4 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 5 | |
| michael@0 | 6 | #include "prbit.h" |
| michael@0 | 7 | #include "prsystem.h" |
| michael@0 | 8 | |
| michael@0 | 9 | #ifdef XP_UNIX |
| michael@0 | 10 | #include <unistd.h> |
| michael@0 | 11 | #endif |
| michael@0 | 12 | #ifdef _WIN32 |
| michael@0 | 13 | #include <windows.h> |
| michael@0 | 14 | #endif |
| michael@0 | 15 | #ifdef XP_BEOS |
| michael@0 | 16 | #include <OS.h> |
| michael@0 | 17 | #endif |
| michael@0 | 18 | |
| michael@0 | 19 | PRInt32 _pr_pageShift; |
| michael@0 | 20 | PRInt32 _pr_pageSize; |
| michael@0 | 21 | |
| michael@0 | 22 | /* |
| michael@0 | 23 | ** Get system page size |
| michael@0 | 24 | */ |
| michael@0 | 25 | static void GetPageSize(void) |
| michael@0 | 26 | { |
| michael@0 | 27 | PRInt32 pageSize; |
| michael@0 | 28 | |
| michael@0 | 29 | /* Get page size */ |
| michael@0 | 30 | #ifdef XP_UNIX |
| michael@0 | 31 | #if defined BSDI || defined AIX \ |
| michael@0 | 32 | || defined LINUX || defined __GNU__ || defined __GLIBC__ \ |
| michael@0 | 33 | || defined FREEBSD || defined NETBSD || defined OPENBSD \ |
| michael@0 | 34 | || defined DARWIN || defined SYMBIAN |
| michael@0 | 35 | _pr_pageSize = getpagesize(); |
| michael@0 | 36 | #elif defined(HPUX) |
| michael@0 | 37 | /* I have no idea. Don't get me started. --Rob */ |
| michael@0 | 38 | _pr_pageSize = sysconf(_SC_PAGE_SIZE); |
| michael@0 | 39 | #else |
| michael@0 | 40 | _pr_pageSize = sysconf(_SC_PAGESIZE); |
| michael@0 | 41 | #endif |
| michael@0 | 42 | #endif /* XP_UNIX */ |
| michael@0 | 43 | |
| michael@0 | 44 | #ifdef XP_BEOS |
| michael@0 | 45 | _pr_pageSize = B_PAGE_SIZE; |
| michael@0 | 46 | #endif |
| michael@0 | 47 | |
| michael@0 | 48 | #ifdef XP_PC |
| michael@0 | 49 | #ifdef _WIN32 |
| michael@0 | 50 | SYSTEM_INFO info; |
| michael@0 | 51 | GetSystemInfo(&info); |
| michael@0 | 52 | _pr_pageSize = info.dwPageSize; |
| michael@0 | 53 | #else |
| michael@0 | 54 | _pr_pageSize = 4096; |
| michael@0 | 55 | #endif |
| michael@0 | 56 | #endif /* XP_PC */ |
| michael@0 | 57 | |
| michael@0 | 58 | pageSize = _pr_pageSize; |
| michael@0 | 59 | PR_CEILING_LOG2(_pr_pageShift, pageSize); |
| michael@0 | 60 | } |
| michael@0 | 61 | |
| michael@0 | 62 | PR_IMPLEMENT(PRInt32) PR_GetPageShift(void) |
| michael@0 | 63 | { |
| michael@0 | 64 | if (!_pr_pageSize) { |
| michael@0 | 65 | GetPageSize(); |
| michael@0 | 66 | } |
| michael@0 | 67 | return _pr_pageShift; |
| michael@0 | 68 | } |
| michael@0 | 69 | |
| michael@0 | 70 | PR_IMPLEMENT(PRInt32) PR_GetPageSize(void) |
| michael@0 | 71 | { |
| michael@0 | 72 | if (!_pr_pageSize) { |
| michael@0 | 73 | GetPageSize(); |
| michael@0 | 74 | } |
| michael@0 | 75 | return _pr_pageSize; |
| michael@0 | 76 | } |
