| // Copyright 2008 Google Inc. All Rights Reserved. |
| |
| |
| #ifndef TALK_BASE_LINUX_H_ |
| #define TALK_BASE_LINUX_H_ |
| |
| #ifdef LINUX |
| #include <string> |
| #include <map> |
| #include <vector> |
| #include "talk/base/stream.h" |
| |
| namespace talk_base { |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| // ConfigParser parses a FileStream of an ".ini."-type format into a map. |
| ////////////////////////////////////////////////////////////////////////////// |
| |
| // Sample Usage: |
| // ConfigParser parser; |
| // ConfigParser::MapVector key_val_pairs; |
| // if (parser.Open(inifile) && parser.Parse(&key_val_pairs)) { |
| // for (int section_num=0; i < key_val_pairs.size(); ++section_num) { |
| // std::string val1 = key_val_pairs[section_num][key1]; |
| // std::string val2 = key_val_pairs[section_num][key2]; |
| // // Do something with valn; |
| // } |
| // } |
| |
| class ConfigParser { |
| public: |
| typedef std::map<std::string, std::string> SimpleMap; |
| typedef std::vector<SimpleMap> MapVector; |
| |
| ConfigParser(); |
| virtual ~ConfigParser(); |
| |
| virtual bool Open(const std::string& filename); |
| virtual void Attach(StreamInterface* stream); |
| virtual bool Parse(MapVector *key_val_pairs); |
| virtual bool ParseSection(SimpleMap *key_val_pair); |
| virtual bool ParseLine(std::string *key, std::string *value); |
| |
| private: |
| scoped_ptr<StreamInterface> instream_; |
| }; |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| // ProcCpuInfo reads CPU info from the /proc subsystem on any *NIX platform. |
| ////////////////////////////////////////////////////////////////////////////// |
| |
| // Sample Usage: |
| // ProcCpuInfo proc_info; |
| // int no_of_cpu; |
| // if (proc_info.LoadFromSystem()) { |
| // std::string out_str; |
| // proc_info.GetNumCpus(&no_of_cpu); |
| // proc_info.GetCpuStringValue(0, "vendor_id", &out_str); |
| // } |
| // } |
| |
| class ProcCpuInfo { |
| public: |
| ProcCpuInfo(); |
| virtual ~ProcCpuInfo(); |
| |
| // Reads the proc subsystem's cpu info into memory. If this fails, this |
| // returns false; if it succeeds, it returns true. |
| virtual bool LoadFromSystem(); |
| |
| // Obtains the number of CPUs and places the value num. |
| virtual bool GetNumCpus(int *num); |
| |
| // Looks for the CPU proc item with the given name for the given CPU number |
| // and places the string value in result. |
| virtual bool GetCpuStringValue(int cpu_id, const std::string& key, |
| std::string *result); |
| |
| // Looks for the CPU proc item with the given name for the given CPU number |
| // and places the int value in result. |
| virtual bool GetCpuIntValue(int cpu_id, const std::string& key, |
| int *result); |
| |
| private: |
| ConfigParser::MapVector cpu_info_; |
| }; |
| |
| // Builds a string containing the info from lsb_release on a single line. |
| std::string ReadLinuxLsbRelease(); |
| |
| // Returns the output of "uname". |
| std::string ReadLinuxUname(); |
| |
| // Returns the content (int) of |
| // /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq |
| // Returns -1 on error. |
| int ReadCpuMaxFreq(); |
| |
| } // namespace talk_base |
| |
| #endif // LINUX |
| #endif // TALK_BASE_LINUX_H_ |