1 files changed, 45 insertions, 0 deletions
diff --git a/src/pmdas/rpm/timer.c b/src/pmdas/rpm/timer.c
new file mode 100644
index 0000000..89cd8aa
--- /dev/null
+++ b/src/pmdas/rpm/timer.c
@@ -0,0 +1,45 @@
+/*
+ * Copyright (c) 2013 Red Hat.
+ * 
+ * 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 <pmapi.h>
+#include <impl.h>
+#include <sys/time.h>
+#include <sys/resource.h>
+
+static struct rusage start_rsrc, final_rsrc;
+static struct timeval start_time, final_time;
+static double user, kernel, elapsed;
+
+double get_user_timer() { return user; }
+double get_kernel_timer() { return kernel; }
+double get_elapsed_timer() { return elapsed; }
+
+void
+start_timing(void)
+{
+    getrusage(RUSAGE_SELF, &start_rsrc);
+    gettimeofday(&start_time, NULL);
+}
+
+void
+stop_timing(void)
+{
+    gettimeofday(&final_time, NULL);
+    getrusage(RUSAGE_SELF, &final_rsrc);
+
+    /* accumulate the totals as we go */
+    user += __pmtimevalSub(&final_rsrc.ru_utime, &start_rsrc.ru_utime);
+    kernel += __pmtimevalSub(&final_rsrc.ru_stime, &start_rsrc.ru_stime);
+    elapsed += __pmtimevalSub(&final_time, &start_time);
+}