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
|
/************************************************************************
* This file is part of Paramano. *
* *
* Paramano is free software; you can redistribute it and/or *
* modify it under the terms of the GNU General Public License as *
* published by the Free Software Foundation; either version 3 of the *
* License, or (at your option) any later version. *
* *
* Paramano is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with Paramano. If not, see *
* <http://www.gnu.org/licenses/>. *
************************************************************************/
#include "getgov.h"
#include "getcore.h"
#include "common.h"
#include <stdio.h>
#include <string.h>
#include <glib.h>
/* [CORE][GOVERNOR NUMBER] */
static char governors[999][50][13];
static int total_governors;
/***********************************************************************
* Grab all available governors
**********************************************************************/
void gg_init()
{
char gov_string[500];
unsigned int i = 0;
total_governors = 0;
for (i = 0; i < gc_number(); i++)
{
memset(gov_string, '\0', sizeof(gov_string) );
gg_available(i, gov_string, sizeof(gov_string) );
char* curr = gov_string;
char* end_of_curr = g_strstr_len(curr, strlen(curr), " ");
while (end_of_curr)
{
memset(governors[i][total_governors], '\0', 13); /* FIXME magic */
memmove(governors[i][total_governors], curr, end_of_curr - curr);
curr = end_of_curr+1;
end_of_curr = g_strstr_len(curr, strlen(curr), " ");
total_governors++;
}
}
}
/***********************************************************************
* Populate out with current governor for core
**********************************************************************/
bool gg_current(int core, char* out, int size)
{
FILE* fd = NULL;
char path[1024];
snprintf(path, sizeof(path), "/sys/devices/system/cpu/cpu%d/cpufreq/scaling_governor", core);
if (!(fd = fopen(path, "r")))
return false;
fgets(out, size, fd);
fclose(fd);
chomp(out);
return true;
}
/***********************************************************************
* Populate `out` with number of available cores
**********************************************************************/
bool gg_available(int core, char* out, int size)
{
FILE *fd = NULL;
char path[1024];
snprintf(path, sizeof(path), "/sys/devices/system/cpu/cpu%d/cpufreq/scaling_available_governors", core);
if (!(fd = fopen(path, "r")))
return false;
fgets(out, size, fd);
fclose(fd);
return true;
}
/***********************************************************************
* Return pointer to name of gov
**********************************************************************/
char* gg_gov(int core, int index)
{
return governors[core][index];
}
/***********************************************************************
* Return total number of governors
**********************************************************************/
unsigned int gg_number()
{
return total_governors;
}
|
