1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
|
/*
* libjingle
* Copyright 2008, Google Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef TALK_BASE_LINUX_H_
#define TALK_BASE_LINUX_H_
#if defined(LINUX) || defined(ANDROID)
#include <string>
#include <map>
#include <vector>
#include "talk/base/scoped_ptr.h"
#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 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_;
};
// 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 // defined(LINUX) || defined(ANDROID)
#endif // TALK_BASE_LINUX_H_
|
