[v2,4/5] y2038: Provide conversion helpers for struct __timeval64
Commit Message
Those functions allow easy conversion between Y2038 safe, glibc internal
struct __timeval64 and other time related data structures (like struct timeval
or struct __timespec64).
Build tests:
./src/scripts/build-many-glibcs.py glibcs
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
---
Changes for v2:
- None
---
include/time.h | 36 ++++++++++++++++++++++++++++++++++++
1 file changed, 36 insertions(+)
@@ -304,6 +304,30 @@ valid_timeval_to_timespec64 (const struct timeval tv)
return ts64;
}
+/* Convert a known valid struct timeval into a struct __timeval64. */
+static inline struct __timeval64
+valid_timeval_to_timeval64 (const struct timeval tv)
+{
+ struct __timeval64 tv64;
+
+ tv64.tv_sec = tv.tv_sec;
+ tv64.tv_usec = tv.tv_usec;
+
+ return tv64;
+}
+
+/* Convert a struct __timeval64 into a struct __timespec64. */
+static inline struct __timespec64
+timeval64_to_timespec64 (const struct __timeval64 tv64)
+{
+ struct __timespec64 ts64;
+
+ ts64.tv_sec = tv64.tv_sec;
+ ts64.tv_nsec = tv64.tv_usec * 1000;
+
+ return ts64;
+}
+
/* Convert a known valid struct timespec into a struct __timespec64. */
static inline struct __timespec64
valid_timespec_to_timespec64 (const struct timespec ts)
@@ -342,6 +366,18 @@ valid_timespec64_to_timeval (const struct __timespec64 ts64)
return tv;
}
+/* Convert a struct __timespec64 into a struct __timeval64. */
+static inline struct __timeval64
+timespec64_to_timeval64 (const struct __timespec64 ts64)
+{
+ struct __timeval64 tv64;
+
+ tv64.tv_sec = ts64.tv_sec;
+ tv64.tv_usec = ts64.tv_nsec / 1000;
+
+ return tv64;
+}
+
/* Check if a value is in the valid nanoseconds range. Return true if
it is, false otherwise. */
static inline bool