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Diffstat (limited to 'chromium/third_party/webrtc/base/linux.h')
-rw-r--r-- | chromium/third_party/webrtc/base/linux.h | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/chromium/third_party/webrtc/base/linux.h b/chromium/third_party/webrtc/base/linux.h new file mode 100644 index 00000000000..8f601878f62 --- /dev/null +++ b/chromium/third_party/webrtc/base/linux.h @@ -0,0 +1,123 @@ +/* + * Copyright 2008 The WebRTC Project Authors. All rights reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +#ifndef WEBRTC_BASE_LINUX_H_ +#define WEBRTC_BASE_LINUX_H_ + +#if defined(WEBRTC_LINUX) +#include <string> +#include <map> +#include <vector> + +#include "webrtc/base/scoped_ptr.h" +#include "webrtc/base/stream.h" + +namespace rtc { + +////////////////////////////////////////////////////////////////////////////// +// 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 logical CPU threads and places the value num. + virtual bool GetNumCpus(int* num); + + // Obtains the number of physical CPU cores and places the value num. + virtual bool GetNumPhysicalCpus(int* num); + + // Obtains the CPU family id. + virtual bool GetCpuFamily(int* id); + + // Obtains the number of sections in /proc/cpuinfo, which may be greater + // than the number of CPUs (e.g. on ARM) + virtual bool GetSectionCount(size_t* count); + + // Looks for the CPU proc item with the given name for the given section + // number and places the string value in result. + virtual bool GetSectionStringValue(size_t section_num, const std::string& key, + std::string* result); + + // Looks for the CPU proc item with the given name for the given section + // number and places the int value in result. + virtual bool GetSectionIntValue(size_t section_num, const std::string& key, + int* result); + + private: + ConfigParser::MapVector sections_; +}; + +#if !defined(WEBRTC_CHROMIUM_BUILDs) +// Builds a string containing the info from lsb_release on a single line. +std::string ReadLinuxLsbRelease(); +#endif + +// 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 rtc + +#endif // defined(WEBRTC_LINUX) +#endif // WEBRTC_BASE_LINUX_H_ |