From 45dafbdb4e221f600895aa70a69e2e306093bd90 Mon Sep 17 00:00:00 2001
From: "Peter S. Mazinger" <ps.m@gmx.net>
Date: Sun, 27 Feb 2011 00:25:56 +0100
Subject: fix dependency on ADVANCED_REALTIME

Do not depend on ADVANCED REALTIME for mq_send/mq_receive
Added stubs implementation based on libc's stubs.c

Signed-off-by: Peter S. Mazinger <ps.m@gmx.net>
---
 librt/mq_receive.c | 34 ++++++++++++++++++----------------
 1 file changed, 18 insertions(+), 16 deletions(-)

(limited to 'librt/mq_receive.c')

diff --git a/librt/mq_receive.c b/librt/mq_receive.c
index 40447dfb9..26fc45194 100644
--- a/librt/mq_receive.c
+++ b/librt/mq_receive.c
@@ -2,22 +2,23 @@
  * mq_receive.c - functions for receiving from message queue.
  */
 
-#include <errno.h>
-#include <stddef.h>
 #include <sys/syscall.h>
+
+#ifdef __NR_mq_timedreceive
+
+#include <stddef.h>
 #include <mqueue.h>
-#warning FIXME: hard dependency on ADVANCED REALTIME feature
 
+#ifdef __UCLIBC_HAS_THREADS_NATIVE__
 librt_hidden_proto(mq_timedreceive)
+#else
 
-#ifndef __UCLIBC_HAS_THREADS_NATIVE__
-#ifdef __NR_mq_timedreceive
-#define __NR___syscall_mq_timedreceive __NR_mq_timedreceive
-static __inline__ _syscall5(int, __syscall_mq_timedreceive, int, mqdes,
-			char *, msg_ptr, size_t, msg_len, unsigned int *,
-			msg_prio, const void *, abs_timeout);
-#endif
+# define __NR___syscall_mq_timedreceive __NR_mq_timedreceive
+static _syscall5(int, __syscall_mq_timedreceive, int, mqdes,
+		 char *, msg_ptr, size_t, msg_len, unsigned int *,
+		 msg_prio, const void *, abs_timeout);
 
+# ifdef __UCLIBC_HAS_ADVANCED_REALTIME__
 /*
  * Receive the oldest from highest priority messages.
  * Stop waiting if abs_timeout expires.
@@ -26,21 +27,22 @@ ssize_t mq_timedreceive(mqd_t mqdes, char *msg_ptr, size_t msg_len,
 			unsigned int *msg_prio,
 			const struct timespec *abs_timeout)
 {
-#ifdef __NR_mq_timedreceive
 	return __syscall_mq_timedreceive(mqdes, msg_ptr, msg_len, msg_prio,
 					 abs_timeout);
-#else
-	errno = ENOSYS;
-	return -1;
-#endif
 }
+# endif
 
-librt_hidden_def(mq_timedreceive)
 #endif
 
 /* Receive the oldest from highest priority messages */
 ssize_t mq_receive(mqd_t mqdes, char *msg_ptr, size_t msg_len,
 		   unsigned int *msg_prio)
 {
+#ifdef __UCLIBC_HAS_THREADS_NATIVE__
 	return mq_timedreceive(mqdes, msg_ptr, msg_len, msg_prio, NULL);
+#else
+	return __syscall_mq_timedreceive(mqdes, msg_ptr, msg_len, msg_prio, NULL);
+#endif
 }
+
+#endif
-- 
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