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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /nsprpub/pr/src/md/prosdep.c
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'nsprpub/pr/src/md/prosdep.c')
-rw-r--r--nsprpub/pr/src/md/prosdep.c76
1 files changed, 76 insertions, 0 deletions
diff --git a/nsprpub/pr/src/md/prosdep.c b/nsprpub/pr/src/md/prosdep.c
new file mode 100644
index 000000000..137ffaecc
--- /dev/null
+++ b/nsprpub/pr/src/md/prosdep.c
@@ -0,0 +1,76 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "prbit.h"
+#include "prsystem.h"
+
+#ifdef XP_UNIX
+#include <unistd.h>
+#endif
+#ifdef _WIN32
+#include <windows.h>
+#endif
+#ifdef XP_BEOS
+#include <OS.h>
+#endif
+
+PRInt32 _pr_pageShift;
+PRInt32 _pr_pageSize;
+
+/*
+** Get system page size
+*/
+static void GetPageSize(void)
+{
+ PRInt32 pageSize;
+
+ /* Get page size */
+#ifdef XP_UNIX
+#if defined BSDI || defined AIX \
+ || defined LINUX || defined __GNU__ || defined __GLIBC__ \
+ || defined FREEBSD || defined NETBSD || defined OPENBSD \
+ || defined DARWIN || defined SYMBIAN
+ _pr_pageSize = getpagesize();
+#elif defined(HPUX)
+ /* I have no idea. Don't get me started. --Rob */
+ _pr_pageSize = sysconf(_SC_PAGE_SIZE);
+#else
+ _pr_pageSize = sysconf(_SC_PAGESIZE);
+#endif
+#endif /* XP_UNIX */
+
+#ifdef XP_BEOS
+ _pr_pageSize = B_PAGE_SIZE;
+#endif
+
+#ifdef XP_PC
+#ifdef _WIN32
+ SYSTEM_INFO info;
+ GetSystemInfo(&info);
+ _pr_pageSize = info.dwPageSize;
+#else
+ _pr_pageSize = 4096;
+#endif
+#endif /* XP_PC */
+
+ pageSize = _pr_pageSize;
+ PR_CEILING_LOG2(_pr_pageShift, pageSize);
+}
+
+PR_IMPLEMENT(PRInt32) PR_GetPageShift(void)
+{
+ if (!_pr_pageSize) {
+ GetPageSize();
+ }
+ return _pr_pageShift;
+}
+
+PR_IMPLEMENT(PRInt32) PR_GetPageSize(void)
+{
+ if (!_pr_pageSize) {
+ GetPageSize();
+ }
+ return _pr_pageSize;
+}