[RFC,42/52] Y2038: add function __setitimer_t64
Commit Message
Signed-off-by: Albert ARIBAUD (3ADEV) <albert.aribaud@3adev.fr>
---
time/Makefile | 2 +-
time/Versions | 1 +
time/setitimer64.c | 69 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 71 insertions(+), 1 deletion(-)
create mode 100644 time/setitimer64.c
@@ -38,7 +38,7 @@ routines := offtime asctime clock ctime ctime_r difftime \
strftime wcsftime strftime_l wcsftime_l \
timespec_get \
settimeofday64 nanosleep64 \
- getitimer64
+ getitimer64 setitimer64
aux := era alt_digit lc-time-cleanup
tests := test_time clocktest tst-posixtz tst-strptime tst_wcsftime \
@@ -78,5 +78,6 @@ libc {
__nanosleep_t64;
__adjtime_t64;
__getitimer_t64;
+ __setitimer_t64;
}
}
new file mode 100644
@@ -0,0 +1,69 @@
+/* Copyright (C) 1991-2017 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>
+#include <errno.h>
+#include <sys/time.h>
+
+extern int __y2038_linux_support;
+
+/* Set the timer WHICH to *NEW. If OLD is not NULL,
+ set *OLD to the old value of timer WHICH.
+ Returns 0 on success, -1 on errors. */
+int
+__setitimer_t64 (enum __itimer_which which,
+ const struct __itimerval_t64 *new,
+ struct __itimerval_t64 *old)
+{
+ struct itimerval new32, *new32p = NULL;
+ struct itimerval old32, *old32p = NULL;
+
+ if (__y2038_linux_support)
+ {
+ /* TODO: use 64-bit syscall */
+ }
+
+ if (new != NULL)
+ {
+ if (new->it_interval.tv_sec > INT_MAX ||
+ new->it_value.tv_sec > INT_MAX)
+ {
+ __set_errno (EOVERFLOW);
+ return -1;
+ }
+ new32.it_interval.tv_sec = new->it_interval.tv_sec;
+ new32.it_interval.tv_usec = new->it_interval.tv_usec;
+ new32.it_value.tv_sec = new->it_value.tv_sec;
+ new32.it_value.tv_usec = new->it_value.tv_usec;
+ new32p = &new32;
+ }
+
+ if (old != NULL)
+ old32p = &old32;
+
+ int result = setitimer(which, new32p, old32p);
+
+ if (old)
+ {
+ old->it_interval.tv_sec = old32.it_interval.tv_sec;
+ old->it_interval.tv_usec = old32.it_interval.tv_usec;
+ old->it_value.tv_sec = old32.it_value.tv_sec;
+ old->it_value.tv_usec = old32.it_value.tv_usec;
+ }
+
+ return result;
+}