Added timings utility. Bump version to 2.1.45.

[yaz-moved-to-github.git] / src / timing.c

diff --git a/src/timing.c b/src/timing.c
new file mode 100644 (file)
index 0000000..6957bc9
--- /dev/null
+++ b/src/timing.c
@@ -0,0 +1,110 @@
+/*
+ * Copyright (C) 1995-2007, Index Data ApS
+ * See the file LICENSE for details.
+ *
+ * $Id: timing.c,v 1.1 2007-01-03 13:46:18 adam Exp $
+ */
+
+/**
+ * \file timing.c
+ * \brief Timing Utilities
+ */
+
+#if HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdlib.h>
+
+#if HAVE_SYS_TIMES_H
+#include <sys/times.h>
+#endif
+#if HAVE_SYS_TIME_H
+#include <sys/time.h>
+#endif
+#include <time.h>
+
+#include <yaz/xmalloc.h>
+#include <yaz/timing.h>
+
+struct yaz_timing {
+#if HAVE_SYS_TIMES_H
+    struct tms tms1, tms2;
+#endif
+#if HAVE_SYS_TIME_H
+    struct timeval start_time, end_time;
+#endif
+    double real_sec, user_sec, sys_sec;
+};
+
+yaz_timing_t yaz_timing_create(void)
+{
+    yaz_timing_t t = xmalloc(sizeof(*t));
+    yaz_timing_start(t);
+    return t;
+}
+
+void yaz_timing_start(yaz_timing_t t)
+{
+#if HAVE_SYS_TIMES_H
+    times(&t->tms1);
+#endif
+#if HAVE_SYS_TIME_H
+    gettimeofday(&t->start_time, 0);
+#endif
+    t->real_sec = -1.0;
+    t->user_sec = -1.0;
+    t->sys_sec = -1.0;
+}
+
+void yaz_timing_stop(yaz_timing_t t)
+{
+    t->real_sec = 0.0;
+    t->user_sec = 0.0;
+    t->sys_sec = 0.0;
+#if HAVE_SYS_TIMES_H
+    times(&t->tms2);
+    
+    t->user_sec = (double) (t->tms2.tms_utime - t->tms1.tms_utime)/100;
+    t->sys_sec = (double) (t->tms2.tms_stime - t->tms1.tms_stime)/100;
+#endif
+#if HAVE_SYS_TIME_H
+    gettimeofday(&t->end_time, 0);
+    t->real_sec = ((t->end_time.tv_sec - t->start_time.tv_sec) * 1000000.0 +
+                   t->end_time.tv_usec - t->start_time.tv_usec) / 1000000;
+    
+#endif
+}
+
+double yaz_timing_get_real(yaz_timing_t t)
+{
+    return t->real_sec;
+}
+
+double yaz_timing_get_user(yaz_timing_t t)
+{
+    return t->user_sec;
+}
+
+double yaz_timing_get_sys(yaz_timing_t t)
+{
+    return t->sys_sec;
+}
+
+void yaz_timing_destroy(yaz_timing_t *tp)
+{
+    if (*tp)
+    {
+        xfree(*tp);
+        *tp = 0;
+    }
+}
+
+/*
+ * Local variables:
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ * vim: shiftwidth=4 tabstop=8 expandtab
+ */
+