[PATCH 4/5] include: define MACH_MSG_TYPE_PROTECTED_PAYLOAD

[Justus Winter]

* include/mach/message.h: Define MACH_MSG_TYPE_PROTECTED_PAYLOAD.
(MACH_MSG_TYPE_LAST): Adjust accordingly.
* doc/mach.texi (Message Format): Document
MACH_MSG_TYPE_PROTECTED_PAYLOAD.
---
 doc/mach.texi          | 6 ++++++
 include/mach/message.h | 4 +++-
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/doc/mach.texi b/doc/mach.texi
index 6a376f7..d61ee22 100644
--- a/doc/mach.texi
+++ b/doc/mach.texi
@@ -1426,6 +1426,7 @@ types are predefined:
 @item MACH_MSG_TYPE_STRING
 @item MACH_MSG_TYPE_STRING_C
 @item MACH_MSG_TYPE_PORT_NAME
+@item MACH_MSG_TYPE_PROTECTED_PAYLOAD
 @end table
 
 The following predefined types specify port rights, and receive special
@@ -1444,6 +1445,11 @@ should be used in preference to 
@code{MACH_MSG_TYPE_INTEGER_32}.
 @item MACH_MSG_TYPE_MAKE_SEND_ONCE
 @end table
 
+The type @code{MACH_MSG_TYPE_PROTECTED_PAYLOAD} is used by the kernel
+to indicate that a delivered message carries a payload in the
+@code{msgh_protected_payload} field.  See @ref{Message Receive} for
+more information.
+
 @item msgt_size : 8
 The @code{msgt_size} field specifies the size of each datum, in bits.  For
 example, the msgt_size of @code{MACH_MSG_TYPE_INTEGER_32} data is 32.
diff --git a/include/mach/message.h b/include/mach/message.h
index 7464a57..0a7297e 100644
--- a/include/mach/message.h
+++ b/include/mach/message.h
@@ -256,7 +256,9 @@ typedef     struct  {
 #define MACH_MSG_TYPE_PORT_SEND                MACH_MSG_TYPE_MOVE_SEND
 #define MACH_MSG_TYPE_PORT_SEND_ONCE   MACH_MSG_TYPE_MOVE_SEND_ONCE
 
-#define MACH_MSG_TYPE_LAST             22              /* Last assigned */
+#define MACH_MSG_TYPE_PROTECTED_PAYLOAD        23
+
+#define MACH_MSG_TYPE_LAST             23              /* Last assigned */
 
 /*
  *  A dummy value.  Mostly used to indicate that the actual value
-- 
1.8.5.2