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authorSander Vrijders <sander.vrijders@intec.ugent.be>2016-05-25 11:17:05 +0200
committerSander Vrijders <sander.vrijders@intec.ugent.be>2016-05-25 11:17:05 +0200
commit8ade85d2084433198f050978b2f0ec8347efd37d (patch)
tree5683238d604d983afe850f7b920078802f395ced /include
parent82622409f7b32b697581837a9392a83342a45ad6 (diff)
parentbfe91f5a07bf8ad0e0da0fd8079411b3a66e4a79 (diff)
downloadouroboros-8ade85d2084433198f050978b2f0ec8347efd37d.tar.gz
ouroboros-8ade85d2084433198f050978b2f0ec8347efd37d.zip
Merged in dstaesse/ouroboros/be-tools-cbr (pull request #110)
tools, lib: cbr tool for bandwidth testing
Diffstat (limited to 'include')
-rw-r--r--include/ouroboros/CMakeLists.txt1
-rw-r--r--include/ouroboros/time_utils.h80
2 files changed, 81 insertions, 0 deletions
diff --git a/include/ouroboros/CMakeLists.txt b/include/ouroboros/CMakeLists.txt
index 6e49ee04..245187e9 100644
--- a/include/ouroboros/CMakeLists.txt
+++ b/include/ouroboros/CMakeLists.txt
@@ -11,6 +11,7 @@ set(HEADER_FILES
instance_name.h
irm.h
qos.h
+ time_utils.h
)
install(FILES ${HEADER_FILES} DESTINATION include/ouroboros)
diff --git a/include/ouroboros/time_utils.h b/include/ouroboros/time_utils.h
new file mode 100644
index 00000000..320cb6f1
--- /dev/null
+++ b/include/ouroboros/time_utils.h
@@ -0,0 +1,80 @@
+/*
+ * Ouroboros - Copyright (C) 2016
+ *
+ * Time utilities
+ *
+ * Dimitri Staessens <dimitri.staessens@intec.ugent.be>
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef OUROBOROS_TIME_UTILS_H
+#define OUROBOROS_TIME_UTILS_H
+
+#ifdef MILLION
+#undef MILLION
+#endif
+
+#ifdef BILLION
+#undef BILLION
+#endif
+
+#define MILLION 1000000L
+#define BILLION 1000000000L
+
+#include <sys/time.h>
+#include <limits.h> /* LONG_MAX */
+
+/* functions for timespecs */
+#define ts_diff_ns(t0, tx) (((tx)->tv_sec - (t0)->tv_sec) * BILLION \
+ + ((tx)->tv_nsec - (t0)->tv_nsec))
+#define ts_diff_us(t0, tx) (((tx)->tv_sec - (t0)->tv_sec) * MILLION \
+ + ((tx)->tv_nsec - (t0)->tv_nsec) / 1000L)
+#define ts_diff_ms(t0, tx) (((tx)->tv_sec - (t0)->tv_sec) * 1000L \
+ + ((tx)->tv_nsec - (t0)->tv_nsec) / MILLION)
+
+/* functions for timevals are the same */
+#define tv_diff_us(t0, tx) (((tx)->tv_sec - (t0)->tv_sec) * MILLION \
+ + ((tx)->tv_usec - (t0)->tv_usec) / 1000L)
+#define tv_diff_ms(t0, tx) (((tx)->tv_sec - (t0)->tv_sec) * 1000L \
+ + ((tx)->tv_usec - (t0)->tv_usec) / MILLION)
+
+/* functions for timespecs */
+int ts_add(const struct timespec * t,
+ const struct timespec * intv,
+ struct timespec * res);
+
+int ts_diff(const struct timespec * t,
+ const struct timespec * intv,
+ struct timespec * res);
+
+/* functions for timevals */
+int tv_add(const struct timeval * t,
+ const struct timeval * intv,
+ struct timeval * res);
+
+int tv_diff(const struct timeval * t,
+ const struct timeval * intv,
+ struct timeval * res);
+
+/* copying a timeval into a timespec */
+int tv_to_ts(const struct timeval * src,
+ struct timespec * dst);
+
+/* copying a timespec into a timeval (loss of resolution) */
+int ts_to_tv(const struct timespec * src,
+ struct timeval * dst);
+
+#endif /* OUROBOROS_TIME_UTILS_H */