From: Ulrich Drepper <drepper@redhat.com>
Date: Thu, 8 Sep 2005 17:39:04 +0000 (+0000)
Subject: (FUTEX_WAKE_OP, FUTEX_OP_CLEAR_WAKE_IF_GT_ONE): Define.
X-Git-Tag: glibc-2.16-ports-before-merge~1029
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=eb4e0abb406333e563e1ea9c41f4c04dfa9d1676;p=thirdparty%2Fglibc.git

(FUTEX_WAKE_OP, FUTEX_OP_CLEAR_WAKE_IF_GT_ONE): Define.
(lll_futex_wake_unlock): Define.
---

diff --git a/sysdeps/unix/sysv/linux/alpha/nptl/lowlevellock.h b/sysdeps/unix/sysv/linux/alpha/nptl/lowlevellock.h
index fd4a7ca4bb4..ab325d2b061 100644
--- a/sysdeps/unix/sysv/linux/alpha/nptl/lowlevellock.h
+++ b/sysdeps/unix/sysv/linux/alpha/nptl/lowlevellock.h
@@ -31,6 +31,8 @@
 #define FUTEX_WAKE		1
 #define FUTEX_REQUEUE		3
 #define FUTEX_CMP_REQUEUE	4
+#define FUTEX_WAKE_OP		5
+#define FUTEX_OP_CLEAR_WAKE_IF_GT_ONE	((4 << 24) | 1)
 
 /* Initializer for compatibility lock.	*/
 #define LLL_MUTEX_LOCK_INITIALIZER (0)
@@ -73,6 +75,20 @@
     INTERNAL_SYSCALL_ERROR_P (__ret, __err);				      \
   })
 
+/* Returns non-zero if error happened, zero if success.  */
+#define lll_futex_wake_unlock(futexp, nr_wake, nr_wake2, futexp2) \
+  ({									      \
+    INTERNAL_SYSCALL_DECL (__err);					      \
+    long int __ret;							      \
+    __ret = INTERNAL_SYSCALL (futex, __err, 6,				      \
+			      (futexp), FUTEX_WAKE_OP, (nr_wake),	      \
+			      (nr_wake2), (futexp2),			      \
+			      FUTEX_OP_CLEAR_WAKE_IF_GT_ONE);		      \
+    INTERNAL_SYSCALL_ERROR_P (__ret, __err);				      \
+  })
+
+
+
 
 static inline int __attribute__((always_inline))
 __lll_mutex_trylock(int *futex)