Push back changes to add cancellation handling.

It still needs to reach an agreement on the final
solution, anyway this code have been put int to be shared
for the mips-sh4 merge

Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>

1 files changed, 25 insertions, 3 deletions

diff --git a/libc/sysdeps/linux/common/nanosleep.c b/libc/sysdeps/linux/common/nanosleep.c
index 76cab97f2..1e541500b 100644
--- a/libc/sysdeps/linux/common/nanosleep.c
+++ b/libc/sysdeps/linux/common/nanosleep.c
@@ -10,10 +10,32 @@
 #include "syscalls.h"
 #include <time.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 inline _syscall2(int, __syscall_nanosleep, const struct timespec *, req,
+						struct timespec *, rem);
+
 extern __typeof(nanosleep) __libc_nanosleep;
-#define __NR___libc_nanosleep __NR_nanosleep
-_syscall2(int, __libc_nanosleep, const struct timespec *, req,
-		  struct timespec *, rem);
+
+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
+}
+
 libc_hidden_proto(nanosleep)
 weak_alias(__libc_nanosleep,nanosleep)
 libc_hidden_weak(nanosleep)