[[PATCH,RFC,2] 38/63] Y2038: add function __time64
Commit Message
This provides a generic Posix implementation based on calling
__gettimeofday64().
---
sysdeps/posix/time64.c | 43 +++++++++++++++++++++++++++++++++++++++++++
time/Makefile | 1 +
time/Versions | 1 +
time/time.c | 13 +++++++++++++
4 files changed, 58 insertions(+)
create mode 100644 sysdeps/posix/time64.c
new file mode 100644
@@ -0,0 +1,43 @@
+/* Get the 64-bit current time
+ *
+ Copyright (C) 1991-2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <stddef.h> /* For NULL. */
+#include <time.h>
+#include <sys/time.h>
+
+
+/* Return the current time as a `time_t' and also put it in *T if T is
+ not NULL. Time is represented as seconds from Jan 1 00:00:00 1970. */
+
+__time64_t
+__time64 (__time64_t *t)
+{
+ struct __timeval64 tv;
+ __time64_t result;
+
+ if (__gettimeofday64 (&tv, (struct timezone *) NULL))
+ result = (__time64_t) -1;
+ else
+ result = tv.tv_sec;
+
+ if (t != NULL)
+ *t = result;
+
+ return result;
+}
@@ -31,6 +31,7 @@ headers := time.h sys/time.h sys/timeb.h bits/time.h \
routines := offtime asctime clock ctime ctime_r difftime \
gmtime localtime mktime time \
+ time64 \
gettimeofday settimeofday adjtime tzset \
gettimeofday64 settimeofday64 \
tzfile getitimer setitimer \
@@ -86,5 +86,6 @@ libc {
__lutimes64;
__gettimeofday64;
__settimeofday64;
+ __time64;
}
}
@@ -31,3 +31,16 @@ time (time_t *timer)
libc_hidden_def (time)
stub_warning (time)
+
+/* 64-bit time version */
+
+__time64_t
+__time64 (__time64_ *timer)
+{
+ __set_errno (ENOSYS);
+
+ if (timer != NULL)
+ *timer = (__time64_t) -1;
+ return (__time64_t) -1;
+}
+libc_hidden_def (__time64)