xnu-3789.31.2.tar.gz

[apple/xnu.git] / bsd / sys / msgbuf.h

diff --git a/bsd/sys/msgbuf.h b/bsd/sys/msgbuf.h
index 2465b7ecbb334c6ef35d194fbc0f687ec4be2ebd..5b8211cacaeb03ff8ef4655726f5695c79853b2d 100644 (file)
--- a/bsd/sys/msgbuf.h
+++ b/bsd/sys/msgbuf.h
@@ -1,16 +1,19 @@
 /*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2010 Apple, Inc. All rights reserved.
  *
- * @APPLE_LICENSE_HEADER_START@
- * 
- * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
  * This file contains Original Code and/or Modifications of Original Code
  * as defined in and that are subject to the Apple Public Source License
  * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ * 
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
  * 
  * The Original Code and all software distributed under the License are
  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
@@ -20,7 +23,7 @@
  * Please see the License for the specific language governing rights and
  * limitations under the License.
  * 
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
 /*
@@ -60,16 +63,26 @@
 #ifndef        _SYS_MSGBUF_H_
 #define _SYS_MSGBUF_H_
 
-#define        MSG_BSIZE       (4096 - 3 * sizeof(long))
+#include <sys/cdefs.h>
+
+#define        MAX_MSG_BSIZE   (1*1024*1024)
 struct msgbuf {
 #define        MSG_MAGIC       0x063061
-       long    msg_magic;
-       long    msg_bufx;               /* write pointer */
-       long    msg_bufr;               /* read pointer */
-       char    msg_bufc[MSG_BSIZE];    /* buffer */
+       int             msg_magic;
+       int             msg_size;
+       int             msg_bufx;               /* write pointer */
+       int             msg_bufr;               /* read pointer */
+       char    *msg_bufc;              /* buffer */
 };
-#ifdef KERNEL
+
+#ifdef XNU_KERNEL_PRIVATE
+__BEGIN_DECLS
 extern struct  msgbuf *msgbufp;
 extern void log_putc(char);
-#endif
+extern void log_putc_locked(char);
+extern int log_setsize(int size);
+extern int log_dmesg(user_addr_t, uint32_t, int32_t *);
+__END_DECLS
+#endif /* XNU_KERNEL_PRIVATE */
+
 #endif /* !_SYS_MSGBUF_H_ */