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| author | Joseph Myers <joseph@codesourcery.com> | 2021-05-17 20:55:21 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2021-05-17 20:55:21 +0000 |
| commit | e5ac7bd679de52f70b52b2d0c2135de8d57cba8c (patch) | |
| tree | fbdc25a5d8de6301c5bdd0131a5d9ee38697f6db /include/time.h | |
| parent | c6b6b4f2c7ff62abf5da617bff9d8080631993c0 (diff) | |
| download | glibc-e5ac7bd679de52f70b52b2d0c2135de8d57cba8c.tar.gz glibc-e5ac7bd679de52f70b52b2d0c2135de8d57cba8c.tar.xz glibc-e5ac7bd679de52f70b52b2d0c2135de8d57cba8c.zip | |
Add C2X timespec_getres
ISO C2X adds a timespec_getres function alongside the C11 timespec_get, with functionality similar to that of POSIX clock_getres (including allowing a NULL pointer to be passed to the function). Implement this function for glibc, similarly to the implementation of timespec_get. This includes a basic test like that of timespec_get, but no documentation in the manual, given that TIME_UTC and timespec_get aren't documented in the manual at all. The handling of 64-bit time follows that in timespec_get; people maintaining patch series for 64-bit time will need to update them accordingly (to export __timespec_getres64, redirect calls in time.h and run the test for _TIME_BITS=64). Tested for x86_64 and x86, and (previous version; only testcase differs) with build-many-glibcs.py.
Diffstat (limited to 'include/time.h')
| -rw-r--r-- | include/time.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/time.h b/include/time.h index e0636132a6..4372bfbd96 100644 --- a/include/time.h +++ b/include/time.h @@ -28,6 +28,9 @@ libc_hidden_proto (__clock_gettime) extern __typeof (clock_settime) __clock_settime; libc_hidden_proto (__clock_settime) +extern __typeof (clock_getres) __clock_getres; +libc_hidden_proto (__clock_getres) + extern __typeof (clock_nanosleep) __clock_nanosleep; libc_hidden_proto (__clock_nanosleep); @@ -306,6 +309,7 @@ extern double __difftime (time_t time1, time_t time0); # define __clock_nanosleep_time64 __clock_nanosleep # define __clock_gettime64 __clock_gettime # define __timespec_get64 __timespec_get +# define __timespec_getres64 __timespec_getres #else extern int __clock_nanosleep_time64 (clockid_t clock_id, int flags, const struct __timespec64 *req, @@ -315,6 +319,8 @@ extern int __clock_gettime64 (clockid_t clock_id, struct __timespec64 *tp); libc_hidden_proto (__clock_gettime64) extern int __timespec_get64 (struct __timespec64 *ts, int base); libc_hidden_proto (__timespec_get64) +extern int __timespec_getres64 (struct __timespec64 *ts, int base); +libc_hidden_proto (__timespec_getres64) #endif #if __TIMESIZE == 64 |