5f5ac6a852
Split into Linux and BSD-specific files. Review URL: http://codereview.chromium.org/427010 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@32860 0039d316-1c4b-4281-b951-d872f2087c98
37 lines
877 B
C++
37 lines
877 B
C++
// Copyright (c) 2009 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "base/sys_info.h"
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#include "base/file_util.h"
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#include "base/logging.h"
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namespace base {
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int64 SysInfo::AmountOfPhysicalMemory() {
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long pages = sysconf(_SC_PHYS_PAGES);
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long page_size = sysconf(_SC_PAGE_SIZE);
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if (pages == -1 || page_size == -1) {
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NOTREACHED();
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return 0;
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}
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return static_cast<int64>(pages) * page_size;
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}
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// static
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size_t SysInfo::MaxSharedMemorySize() {
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static size_t limit;
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static bool limit_valid = false;
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if (!limit_valid) {
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std::string contents;
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file_util::ReadFileToString(FilePath("/proc/sys/kernel/shmmax"), &contents);
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limit = strtoul(contents.c_str(), NULL, 0);
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limit_valid = true;
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}
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return limit;
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}
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} // namespace base
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