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authorDavid <dbphillipsnz@gmail.com>2014-05-10 13:31:43 +1200
committerDavid <dbphillipsnz@gmail.com>2014-05-10 13:31:43 +1200
commit55da9c20452dd62db8fb776d4fee8f16a967281d (patch)
tree2de2992c05b696a7dacd0b6004737010cb7a8070 /getcore.c
parente7d8d46e9a7f8590fd89f4b1964778f6b1f57e13 (diff)
downloadparamano-55da9c20452dd62db8fb776d4fee8f16a967281d.tar.xz
Better makefile (I got sidetracked)
Diffstat (limited to 'getcore.c')
-rw-r--r--getcore.c51
1 files changed, 51 insertions, 0 deletions
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 *
+ * <http://www.gnu.org/licenses/>. *
+ ************************************************************************/
+
+#include "getcore.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <glib.h>
+
+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;
+}