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authorMattias Andrée <maandree@kth.se>2017-11-12 14:44:35 +0100
committerMattias Andrée <maandree@kth.se>2017-11-12 14:54:29 +0100
commit67a395794b678d7da053c3daf61eb12d3f9437f2 (patch)
tree26be121e2738954a648d4032e8798723034960d7 /timespec2timeval.c
parentMore functions and add makefile (diff)
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Split into multiple units
Signed-off-by: Mattias Andrée <maandree@kth.se>
Diffstat (limited to 'timespec2timeval.c')
-rw-r--r--timespec2timeval.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/timespec2timeval.c b/timespec2timeval.c
new file mode 100644
index 0000000..c4069ff
--- /dev/null
+++ b/timespec2timeval.c
@@ -0,0 +1,23 @@
+/* See LICENSE file for copyright and license details. */
+#include "libsimple.h"
+
+
+int
+libsimple_timespec2timeval(struct timeval *restrict tv, const struct timespec *restrict ts)
+{
+ tv->tv_sec = ts->tv_sec;
+ tv->tv_usec = ts->tv_nsec / 1000L;
+ if ((ts->tv_nsec % 1000L) >= 500L) {
+ if (++(tv->tv_usec) == 1000000L) {
+ tv->tv_usec = 0;
+ if (tv->tv_sec == TIME_MAX) {
+ tv->tv_usec = 999999L;
+ errno = EOVERFLOW;
+ return -1;
+ } else {
+ tv->tv_sec += 1;
+ }
+ }
+ }
+ return 0;
+}