1 files changed, 47 insertions, 0 deletions
diff --git a/src/pmdas/linux/proc_uptime.c b/src/pmdas/linux/proc_uptime.c
new file mode 100644
index 0000000..0d56bfd
--- /dev/null
+++ b/src/pmdas/linux/proc_uptime.c
@@ -0,0 +1,47 @@
+/*
+ * Copyright (c) Red Hat 2014.
+ * Copyright (c) International Business Machines Corp., 2002
+ * This code contributed by Mike Mason <mmlnx@us.ibm.com>
+ *
+ * This program 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 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program 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.
+ */
+
+#include <fcntl.h>
+#include "pmapi.h"
+#include "pmda.h"
+#include "indom.h"
+#include "proc_uptime.h"
+
+int
+refresh_proc_uptime(proc_uptime_t *proc_uptime)
+{
+    char buf[MAXPATHLEN];
+    int fd, n;
+    float uptime = 0.0, idletime = 0.0;
+
+    memset(proc_uptime, 0, sizeof(proc_uptime_t));
+    snprintf(buf, sizeof(buf), "%s/proc/uptime", linux_statspath);
+    if ((fd = open(buf, O_RDONLY)) < 0)
+	return -oserror();
+
+    n = read(fd, buf, sizeof(buf));
+    close(fd);
+    if (n < 0)
+	return -oserror();
+    else if (n > 0)
+	n--;
+    buf[n] = '\0';
+
+    sscanf((const char *)buf, "%f %f", &uptime, &idletime);
+    proc_uptime->uptime = (unsigned long) uptime;
+    proc_uptime->idletime = (unsigned long) idletime;
+    return 0;
+}