67ee6b9a62
Review URL: https://webrtc-codereview.appspot.com/7909004 git-svn-id: http://webrtc.googlecode.com/svn/trunk@5475 4adac7df-926f-26a2-2b94-8c16560cd09d
141 lines
5.0 KiB
C++
141 lines
5.0 KiB
C++
/*
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* libjingle
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* Copyright 2008, Google Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef TALK_BASE_LINUX_H_
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#define TALK_BASE_LINUX_H_
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#if defined(LINUX) || defined(ANDROID)
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#include <string>
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#include <map>
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#include <vector>
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#include "talk/base/scoped_ptr.h"
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#include "talk/base/stream.h"
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namespace talk_base {
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//////////////////////////////////////////////////////////////////////////////
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// ConfigParser parses a FileStream of an ".ini."-type format into a map.
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//////////////////////////////////////////////////////////////////////////////
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// Sample Usage:
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// ConfigParser parser;
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// ConfigParser::MapVector key_val_pairs;
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// if (parser.Open(inifile) && parser.Parse(&key_val_pairs)) {
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// for (int section_num=0; i < key_val_pairs.size(); ++section_num) {
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// std::string val1 = key_val_pairs[section_num][key1];
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// std::string val2 = key_val_pairs[section_num][key2];
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// // Do something with valn;
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// }
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// }
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class ConfigParser {
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public:
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typedef std::map<std::string, std::string> SimpleMap;
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typedef std::vector<SimpleMap> MapVector;
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ConfigParser();
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virtual ~ConfigParser();
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virtual bool Open(const std::string& filename);
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virtual void Attach(StreamInterface* stream);
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virtual bool Parse(MapVector* key_val_pairs);
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virtual bool ParseSection(SimpleMap* key_val_pair);
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virtual bool ParseLine(std::string* key, std::string* value);
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private:
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scoped_ptr<StreamInterface> instream_;
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};
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//////////////////////////////////////////////////////////////////////////////
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// ProcCpuInfo reads CPU info from the /proc subsystem on any *NIX platform.
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//////////////////////////////////////////////////////////////////////////////
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// Sample Usage:
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// ProcCpuInfo proc_info;
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// int no_of_cpu;
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// if (proc_info.LoadFromSystem()) {
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// std::string out_str;
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// proc_info.GetNumCpus(&no_of_cpu);
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// proc_info.GetCpuStringValue(0, "vendor_id", &out_str);
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// }
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// }
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class ProcCpuInfo {
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public:
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ProcCpuInfo();
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virtual ~ProcCpuInfo();
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// Reads the proc subsystem's cpu info into memory. If this fails, this
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// returns false; if it succeeds, it returns true.
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virtual bool LoadFromSystem();
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// Obtains the number of logical CPU threads and places the value num.
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virtual bool GetNumCpus(int* num);
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// Obtains the number of physical CPU cores and places the value num.
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virtual bool GetNumPhysicalCpus(int* num);
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// Obtains the CPU family id.
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virtual bool GetCpuFamily(int* id);
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// Obtains the number of sections in /proc/cpuinfo, which may be greater
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// than the number of CPUs (e.g. on ARM)
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virtual bool GetSectionCount(size_t* count);
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// Looks for the CPU proc item with the given name for the given section
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// number and places the string value in result.
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virtual bool GetSectionStringValue(size_t section_num, const std::string& key,
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std::string* result);
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// Looks for the CPU proc item with the given name for the given section
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// number and places the int value in result.
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virtual bool GetSectionIntValue(size_t section_num, const std::string& key,
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int* result);
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private:
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ConfigParser::MapVector sections_;
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};
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#if !defined(GOOGLE_CHROME_BUILD) && !defined(CHROMIUM_BUILD)
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// Builds a string containing the info from lsb_release on a single line.
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std::string ReadLinuxLsbRelease();
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#endif
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// Returns the output of "uname".
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std::string ReadLinuxUname();
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// Returns the content (int) of
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// /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq
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// Returns -1 on error.
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int ReadCpuMaxFreq();
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} // namespace talk_base
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#endif // defined(LINUX) || defined(ANDROID)
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#endif // TALK_BASE_LINUX_H_
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