nanosleep.c: use cancel.h

Signed-off-by: Peter S. Mazinger <ps.m@gmx.net>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

libc/sysdeps/linux/common/nanosleep.c

@@ -9,32 +9,13 @@
 
 #include <sys/syscall.h>
 #include <time.h>
+#include <cancel.h>
 
-#ifdef __UCLIBC_HAS_THREADS_NATIVE__
-#include <sysdep-cancel.h>
-#include <pthreadP.h>
-#else
-#define SINGLE_THREAD_P 1
-#endif
-
-#define __NR___syscall_nanosleep __NR_nanosleep
-static _syscall2(int, __syscall_nanosleep, const struct timespec *, req,
+#define __NR___nanosleep_nocancel __NR_nanosleep
+static _syscall2(int, __NC(nanosleep), const struct timespec *, req,
 		 struct timespec *, rem);
 
-extern __typeof(nanosleep) __libc_nanosleep;
-
-int __libc_nanosleep(const struct timespec *req, struct timespec *rem)
-{
-	if (SINGLE_THREAD_P)
-		return __syscall_nanosleep(req, rem);
-
-#ifdef __UCLIBC_HAS_THREADS_NATIVE__
-	int oldtype = LIBC_CANCEL_ASYNC ();
-	int result = __syscall_nanosleep(req, rem);
-	LIBC_CANCEL_RESET (oldtype);
-	return result;
-#endif
-}
-
-weak_alias(__libc_nanosleep,nanosleep)
-libc_hidden_weak(nanosleep)
+CANCELLABLE_SYSCALL(int, nanosleep,
+		    (const struct timespec *req, struct timespec *rem),
+		    (req, rem))
+lt_libc_hidden(nanosleep)