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authorDavid <dbphillipsnz@gmail.com>2014-06-05 17:49:36 +1200
committerDavid <dbphillipsnz@gmail.com>2014-06-05 17:49:36 +1200
commit0a915305a6481f3b9553511376358ab81a51724c (patch)
tree62c19cd0b68f6d5bfd9a3105858d85b84b88b44a /getcore.c
downloadparamano-0a915305a6481f3b9553511376358ab81a51724c.tar.xz
Clean-ups
Diffstat (limited to 'getcore.c')
-rw-r--r--getcore.c63
1 files changed, 63 insertions, 0 deletions
diff --git a/getcore.c b/getcore.c
new file mode 100644
index 0000000..7ef5c91
--- /dev/null
+++ b/getcore.c
@@ -0,0 +1,63 @@
+/************************************************************************
+ * 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 "getcore.h"
+
+#include "common.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <glib.h>
+
+unsigned int cores;
+
+
+/***********************************************************************
+ * Return true/false if specified core num exists
+ **********************************************************************/
+bool 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"));
+}
+
+
+/***********************************************************************
+ * Initialise surrounding variables
+ **********************************************************************/
+void gc_init()
+{
+ cores = 0;
+ while(core_exists(++cores));
+ debug("Found %d cores\n",cores);
+}
+
+
+/***********************************************************************
+ * Return number of cores
+ **********************************************************************/
+int gc_number()
+{
+ return cores;
+}