From 55da9c20452dd62db8fb776d4fee8f16a967281d Mon Sep 17 00:00:00 2001 From: David Date: Sat, 10 May 2014 13:31:43 +1200 Subject: Better makefile (I got sidetracked) --- getcore.c | 51 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 51 insertions(+) create mode 100644 getcore.c (limited to 'getcore.c') diff --git a/getcore.c b/getcore.c new file mode 100644 index 0000000..ad4878f --- /dev/null +++ b/getcore.c @@ -0,0 +1,51 @@ +/************************************************************************ + * 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 * + * . * + ************************************************************************/ + +#include "getcore.h" + +#include +#include +#include + +unsigned int NUMBER_OF_CORES; + +static gboolean core_exists(unsigned int core) +{ + FILE* fd; + char path[80]; + char corestr[4]; + + sprintf(corestr, "%d", core); + sprintf(path, "/sys/devices/system/cpu/cpu%s/cpufreq/scaling_cur_freq", corestr); + debug("Checking if core %d exists by opening '%s'\n",core,path); + return (gboolean)(fd = fopen(path, "r")); +} + +void gc_init() +{ + NUMBER_OF_CORES = 0; + while(core_exists(++NUMBER_OF_CORES)); + debug("Found %d cores\n",NUMBER_OF_CORES); +} + + +/* to do */ +int gc_number() +{ + return NUMBER_OF_CORES; +} -- cgit v1.1