build: Allow out-of-tree build of tools

This removes the dependencies for the tools on some ouroboros internal
headers (endian.h and time_utils.h) so they can be built out-of-tree.
The echo-app tool has been renamed oecho and the cbr tool has been
renamed ocbr.

Signed-off-by: Dimitri Staessens <dimitri.staessens@ugent.be>
Signed-off-by: Sander Vrijders <sander.vrijders@ugent.be>

1 files changed, 97 insertions, 0 deletions

diff --git a/src/tools/time_utils.h b/src/tools/time_utils.h
new file mode 100644
index 00000000..c9760a8b
--- /dev/null
+++ b/src/tools/time_utils.h
@@ -0,0 +1,97 @@
+/*
+ * Ouroboros - Copyright (C) 2016 - 2018
+ *
+ * Time utilities
+ *
+ *    Dimitri Staessens <dimitri.staessens@ugent.be>
+ *    Sander Vrijders   <sander.vrijders@ugent.be>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials provided
+ * with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef OUROBOROS_TOOLS_TIME_UTILS_H
+#define OUROBOROS_TOOLS_TIME_UTILS_H
+
+#ifdef MILLION
+#undef MILLION
+#endif
+
+#ifdef BILLION
+#undef BILLION
+#endif
+
+#define MILLION  1000000L
+#define BILLION  1000000000L
+
+#include <time.h>
+#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_TOOLS_TIME_UTILS_H */