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[RFC PATCH 37/52] Y2038: add function __nanosleep64_t64
Signed-off-by: Albert ARIBAUD (3ADEV) <albert.aribaud@3adev.fr>
---
time/Makefile | 2 +-
time/Versions | 1 +
time/nanosleep64.c | 61 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 63 insertions(+), 1 deletion(-)
create mode 100644 time/nanosleep64.c
diff --git a/time/Makefile b/time/Makefile
index 5fb26f6dbf..d50c3ddfd8 100644
--- a/time/Makefile
+++ b/time/Makefile
@@ -37,7 +37,7 @@ routines := offtime asctime clock ctime ctime_r difftime \
getdate strptime strptime_l \
strftime wcsftime strftime_l wcsftime_l \
timespec_get \
- settimeofday64
+ settimeofday64 nanosleep64
aux := era alt_digit lc-time-cleanup
tests := test_time clocktest tst-posixtz tst-strptime tst_wcsftime \
diff --git a/time/Versions b/time/Versions
index d420770af3..e6812240e9 100644
--- a/time/Versions
+++ b/time/Versions
@@ -75,5 +75,6 @@ libc {
__stime_t64;
__gettimeofday_t64;
__settimeofday_t64;
+ __nanosleep_t64;
}
}
diff --git a/time/nanosleep64.c b/time/nanosleep64.c
new file mode 100644
index 0000000000..b43b7595eb
--- /dev/null
+++ b/time/nanosleep64.c
@@ -0,0 +1,61 @@
+/* Copyright (C) 1996-2017 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 <errno.h>
+#include <time.h>
+
+extern int __y2038_linux_support;
+
+/* Pause execution for a number of nanoseconds. */
+int
+__nanosleep_t64 (const struct __timespec64 *requested_time,
+ struct __timespec64 *remaining)
+{
+ struct timespec treq32, *treqp32 = NULL;
+ struct timespec trem32, *tremp32 = NULL;
+
+ if (__y2038_linux_support)
+ {
+ /* TODO: use 64-bit time syscalls */
+ }
+
+ if (requested_time)
+ {
+ if (requested_time->tv_sec > INT_MAX)
+ {
+ __set_errno(EOVERFLOW);
+ return -1;
+ }
+ treq32.tv_sec = requested_time->tv_sec;
+ treq32.tv_nsec = requested_time->tv_nsec;
+ treqp32 = & treq32;
+ }
+
+ if (remaining)
+ tremp32 = &trem32;
+
+ int result = nanosleep(treqp32, tremp32);
+
+ if (result == 1 && errno == EINTR && remaining)
+ {
+ remaining->tv_sec = trem32.tv_sec;
+ remaining->tv_nsec = trem32.tv_nsec;
+ remaining->tv_pad = 0;
+ }
+
+ return result;
+}
--
2.11.0