henrike@webrtc.org | 0e118e7 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 1 | /* |
| 2 | * libjingle |
| 3 | * Copyright 2008, Google Inc. |
| 4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions are met: |
| 7 | * |
| 8 | * 1. Redistributions of source code must retain the above copyright notice, |
| 9 | * this list of conditions and the following disclaimer. |
| 10 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
| 11 | * this list of conditions and the following disclaimer in the documentation |
| 12 | * and/or other materials provided with the distribution. |
| 13 | * 3. The name of the author may not be used to endorse or promote products |
| 14 | * derived from this software without specific prior written permission. |
| 15 | * |
| 16 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
| 17 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| 18 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
| 19 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 20 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| 21 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
| 22 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| 23 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR |
| 24 | * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
| 25 | * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 26 | */ |
| 27 | |
| 28 | #ifndef TALK_BASE_LINUX_H_ |
| 29 | #define TALK_BASE_LINUX_H_ |
| 30 | |
| 31 | #if defined(LINUX) || defined(ANDROID) |
| 32 | #include <string> |
| 33 | #include <map> |
| 34 | #include <vector> |
| 35 | |
| 36 | #include "talk/base/scoped_ptr.h" |
| 37 | #include "talk/base/stream.h" |
| 38 | |
| 39 | namespace talk_base { |
| 40 | |
| 41 | ////////////////////////////////////////////////////////////////////////////// |
| 42 | // ConfigParser parses a FileStream of an ".ini."-type format into a map. |
| 43 | ////////////////////////////////////////////////////////////////////////////// |
| 44 | |
| 45 | // Sample Usage: |
| 46 | // ConfigParser parser; |
| 47 | // ConfigParser::MapVector key_val_pairs; |
| 48 | // if (parser.Open(inifile) && parser.Parse(&key_val_pairs)) { |
| 49 | // for (int section_num=0; i < key_val_pairs.size(); ++section_num) { |
| 50 | // std::string val1 = key_val_pairs[section_num][key1]; |
| 51 | // std::string val2 = key_val_pairs[section_num][key2]; |
| 52 | // // Do something with valn; |
| 53 | // } |
| 54 | // } |
| 55 | |
| 56 | class ConfigParser { |
| 57 | public: |
| 58 | typedef std::map<std::string, std::string> SimpleMap; |
| 59 | typedef std::vector<SimpleMap> MapVector; |
| 60 | |
| 61 | ConfigParser(); |
| 62 | virtual ~ConfigParser(); |
| 63 | |
| 64 | virtual bool Open(const std::string& filename); |
| 65 | virtual void Attach(StreamInterface* stream); |
| 66 | virtual bool Parse(MapVector* key_val_pairs); |
| 67 | virtual bool ParseSection(SimpleMap* key_val_pair); |
| 68 | virtual bool ParseLine(std::string* key, std::string* value); |
| 69 | |
| 70 | private: |
| 71 | scoped_ptr<StreamInterface> instream_; |
| 72 | }; |
| 73 | |
| 74 | ////////////////////////////////////////////////////////////////////////////// |
| 75 | // ProcCpuInfo reads CPU info from the /proc subsystem on any *NIX platform. |
| 76 | ////////////////////////////////////////////////////////////////////////////// |
| 77 | |
| 78 | // Sample Usage: |
| 79 | // ProcCpuInfo proc_info; |
| 80 | // int no_of_cpu; |
| 81 | // if (proc_info.LoadFromSystem()) { |
| 82 | // std::string out_str; |
| 83 | // proc_info.GetNumCpus(&no_of_cpu); |
| 84 | // proc_info.GetCpuStringValue(0, "vendor_id", &out_str); |
| 85 | // } |
| 86 | // } |
| 87 | |
| 88 | class ProcCpuInfo { |
| 89 | public: |
| 90 | ProcCpuInfo(); |
| 91 | virtual ~ProcCpuInfo(); |
| 92 | |
| 93 | // Reads the proc subsystem's cpu info into memory. If this fails, this |
| 94 | // returns false; if it succeeds, it returns true. |
| 95 | virtual bool LoadFromSystem(); |
| 96 | |
| 97 | // Obtains the number of logical CPU threads and places the value num. |
| 98 | virtual bool GetNumCpus(int* num); |
| 99 | |
| 100 | // Obtains the number of physical CPU cores and places the value num. |
| 101 | virtual bool GetNumPhysicalCpus(int* num); |
| 102 | |
| 103 | // Obtains the CPU family id. |
| 104 | virtual bool GetCpuFamily(int* id); |
| 105 | |
| 106 | // Obtains the number of sections in /proc/cpuinfo, which may be greater |
| 107 | // than the number of CPUs (e.g. on ARM) |
| 108 | virtual bool GetSectionCount(size_t* count); |
| 109 | |
| 110 | // Looks for the CPU proc item with the given name for the given section |
| 111 | // number and places the string value in result. |
| 112 | virtual bool GetSectionStringValue(size_t section_num, const std::string& key, |
| 113 | std::string* result); |
| 114 | |
| 115 | // Looks for the CPU proc item with the given name for the given section |
| 116 | // number and places the int value in result. |
| 117 | virtual bool GetSectionIntValue(size_t section_num, const std::string& key, |
| 118 | int* result); |
| 119 | |
| 120 | private: |
| 121 | ConfigParser::MapVector sections_; |
| 122 | }; |
| 123 | |
mallinath@webrtc.org | b881d27 | 2014-02-03 16:57:16 +0000 | [diff] [blame] | 124 | #if !defined(GOOGLE_CHROME_BUILD) && !defined(CHROMIUM_BUILD) |
| 125 | // Builds a string containing the info from lsb_release on a single line. |
| 126 | std::string ReadLinuxLsbRelease(); |
| 127 | #endif |
| 128 | |
henrike@webrtc.org | 0e118e7 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 129 | // Returns the output of "uname". |
| 130 | std::string ReadLinuxUname(); |
| 131 | |
| 132 | // Returns the content (int) of |
| 133 | // /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq |
| 134 | // Returns -1 on error. |
| 135 | int ReadCpuMaxFreq(); |
| 136 | |
| 137 | } // namespace talk_base |
| 138 | |
| 139 | #endif // defined(LINUX) || defined(ANDROID) |
| 140 | #endif // TALK_BASE_LINUX_H_ |