diff options
Diffstat (limited to 'getgov.c')
| -rw-r--r-- | getgov.c | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/getgov.c b/getgov.c new file mode 100644 index 0000000..197df1c --- /dev/null +++ b/getgov.c @@ -0,0 +1,127 @@ +/************************************************************************ + * This file is part of trayfreq-archlinux. * + * * + * trayfreq-archlinux 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. * + * * + * trayfreq-archlinux 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 trayfreq-archlinux. If not, see * + * <http://www.gnu.org/licenses/>. * + ************************************************************************/ + +#include "string.h" +#include "getgov.h" +#include "getcore.h" +#include "common.h" + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <glib.h> + +/* [CORE][GOVERNOR NUMBER] */ +char governors[999][50][13]; +int total_governors; + +/*********************************************************************** + * Grab all available governors + **********************************************************************/ +void gg_init() +{ + gchar gov_string[500]; + 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) ); + + // go through every governor in gov_string + gchar* curr = (char*)&gov_string; + gchar* end_of_curr = g_strstr_len(curr, strlen(curr), " "); + while(end_of_curr) + { + memset(governors[i][total_governors], '\0', 13); + 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 + **********************************************************************/ +int gg_current(int core, char* out, int size) +{ + FILE* fd; + char path[FILE_PATH_SIZE]; + + sprintf(path, "/sys/devices/system/cpu/cpu%d/cpufreq/scaling_governor", core); + + if(!(fd = fopen(path, "r"))) + { + debug("Couldn't open '%s'\n",path); + return -1; + } + + fgets(out, size, fd); + // Chomp + gchar* newline = g_strrstr(out, "\n"); + *newline = '\0'; + + debug("Current gov for core %d is '%s'\n",core,out); + + fclose(fd); + return 0; +} + + +/*********************************************************************** + * Populate out with number of available cores + **********************************************************************/ +int gg_available(int core, char* out, int size) +{ + FILE* fd; + char path[80]; + + sprintf(path, "/sys/devices/system/cpu/cpu%d/cpufreq/scaling_available_governors", core); + + if(!(fd = fopen(path, "r"))) + { + debug("Couldn't open '%s'\n",path); + return -1; + } + + fgets(out, size, fd); + + fclose(fd); + return 0; +} + + +/*********************************************************************** + * Return pointer to name of gov + **********************************************************************/ +char* gg_gov(int core, int index) +{ + return governors[core][index]; +} + +/*********************************************************************** + * Return total number of governors + **********************************************************************/ +int gg_number() +{ + return total_governors; +} |