[[PATCH,RFC,2] 18/63] Y2038: add function __clock_nanosleep64
Commit Message
---
include/time.h | 3 +++
sysdeps/unix/sysv/linux/clock_nanosleep.c | 42 ++++++++++++++++++++++++++++++-
time/Versions | 1 +
3 files changed, 45 insertions(+), 1 deletion(-)
@@ -39,6 +39,9 @@ extern int __clock_settime64 (clockid_t __clock_id,
const struct __timespec64 *__tp) __THROW;
extern int __clock_getres64 (clockid_t __clock_id,
struct __timespec64 *__res) __THROW;
+extern int __clock_nanosleep64 (clockid_t __clock_id, int __flags,
+ const struct __timespec64 *__req,
+ struct __timespec64 *__rem);
/* Now define the internal interfaces. */
struct tm;
@@ -21,7 +21,6 @@
#include <sysdep-cancel.h>
#include "kernel-posix-cpu-timers.h"
-
/* We can simply use the syscall. The CPU clocks are not supported
with this function. */
int
@@ -52,3 +51,44 @@ __clock_nanosleep (clockid_t clock_id, int flags, const struct timespec *req,
? INTERNAL_SYSCALL_ERRNO (r, err) : 0);
}
weak_alias (__clock_nanosleep, clock_nanosleep)
+
+/* 64-bit time version */
+
+extern int __y2038_linux_support;
+
+int
+__clock_nanosleep64 (clockid_t clock_id, int flags,
+ const struct __timespec64 *req,
+ struct __timespec64 *rem)
+{
+ /* Until Linux provides a 64-bit syscall, use the 32-bit one */
+ INTERNAL_SYSCALL_DECL (err);
+ int r;
+ struct timespec req32, rem32, *rem32p = NULL;
+
+ if (req == NULL)
+ {
+ __set_errno(EFAULT);
+ return -1;
+ }
+
+ if (req->tv_sec > INT32_MAX || req->tv_sec < INT32_MIN)
+ {
+ __set_errno(EOVERFLOW);
+ return -1;
+ }
+
+ req32.tv_sec = req->tv_sec;
+ req32.tv_nsec = req->tv_nsec;
+ if (rem !=NULL) rem32p = &rem32;
+
+ r = clock_nanosleep(clock_id, flags, &req32, rem32p);
+
+ if (r == 0 && rem != NULL)
+ {
+ rem->tv_sec = rem32.tv_sec;
+ rem->tv_nsec = rem32.tv_nsec;
+ }
+
+ return r;
+}
@@ -77,5 +77,6 @@ libc {
__y2038_kernel_support;
__clock_settime64;
__clock_getres64;
+ __clock_nanosleep64;
}
}