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authorLennart Poettering <lennart@poettering.net>2012-10-16 01:02:36 +0200
committerLennart Poettering <lennart@poettering.net>2012-10-16 01:04:32 +0200
commitb1c806231b2822c66986d72b26a05ee09ac4b051 (patch)
tree85fe9b035cfc016ab214eb4500430e9cfd084188 /src/shared
parentf530371f1f85a070d7d0fb5112146a43533ae00b (diff)
util: properly handle -1 timespec/timeval
Diffstat (limited to 'src/shared')
-rw-r--r--src/shared/util.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/src/shared/util.c b/src/shared/util.c
index 15481b6b9d..1e1eb2af5f 100644
--- a/src/shared/util.c
+++ b/src/shared/util.c
@@ -143,6 +143,10 @@ dual_timestamp* dual_timestamp_from_realtime(dual_timestamp *ts, usec_t u) {
usec_t timespec_load(const struct timespec *ts) {
assert(ts);
+ if (ts->tv_sec == (time_t) -1 &&
+ ts->tv_nsec == (long) -1)
+ return (usec_t) -1;
+
return
(usec_t) ts->tv_sec * USEC_PER_SEC +
(usec_t) ts->tv_nsec / NSEC_PER_USEC;
@@ -151,6 +155,12 @@ usec_t timespec_load(const struct timespec *ts) {
struct timespec *timespec_store(struct timespec *ts, usec_t u) {
assert(ts);
+ if (u == (usec_t) -1) {
+ ts->tv_sec = (time_t) -1;
+ ts->tv_nsec = (long) -1;
+ return ts;
+ }
+
ts->tv_sec = (time_t) (u / USEC_PER_SEC);
ts->tv_nsec = (long int) ((u % USEC_PER_SEC) * NSEC_PER_USEC);
@@ -160,6 +170,10 @@ struct timespec *timespec_store(struct timespec *ts, usec_t u) {
usec_t timeval_load(const struct timeval *tv) {
assert(tv);
+ if (tv->tv_sec == (time_t) -1 &&
+ tv->tv_usec == (suseconds_t) -1)
+ return (usec_t) -1;
+
return
(usec_t) tv->tv_sec * USEC_PER_SEC +
(usec_t) tv->tv_usec;
@@ -168,6 +182,12 @@ usec_t timeval_load(const struct timeval *tv) {
struct timeval *timeval_store(struct timeval *tv, usec_t u) {
assert(tv);
+ if (u == (usec_t) -1) {
+ tv->tv_sec = (time_t) -1;
+ tv->tv_usec = (suseconds_t) -1;
+ return tv;
+ }
+
tv->tv_sec = (time_t) (u / USEC_PER_SEC);
tv->tv_usec = (suseconds_t) (u % USEC_PER_SEC);