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| author | Justus Winter <4winter@informatik.uni-hamburg.de> | 2013-11-22 10:04:07 +0100 |
|---|---|---|
| committer | Justus Winter <4winter@informatik.uni-hamburg.de> | 2014-10-01 09:03:51 +0200 |
| commit | 56dc414b0699d1576fc1deb983a4bd2b0ef10f5d (patch) | |
| tree | 6fabf73a6457fc17d76b7600a35f01a0be3eb069 /doc | |
| parent | c4baf67b71e20d1fdd2cc6bda1a2ea15e9853cdd (diff) | |
include: add msgh_protected_payload to mach_msg_header_t
* include/mach/message.h (mach_msg_header_t): Add
msgh_protected_payload as a union with msgh_local_port.
* doc/mach.texi (Message Format): Document msgh_protected_payload.
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/mach.texi | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/doc/mach.texi b/doc/mach.texi index 3175df1..671e0d0 100644 --- a/doc/mach.texi +++ b/doc/mach.texi @@ -1330,6 +1330,15 @@ which is conventionally used as a reply port by the recipient of the message. The field must carry a send right, a send-once right, @code{MACH_PORT_NULL}, or @code{MACH_PORT_DEAD}. +@item unsigned long msgh_protected_payload +The @code{msgh_protected_payload} field carries a payload that is set +by the kernel during message delivery. The payload is an opaque +identifier that can be used by the receiver to lookup the associated +data structure. + +It is only valid in received messages. See @ref{Message Receive} for +further information. + @item mach_port_seqno_t msgh_seqno The @code{msgh_seqno} field provides a sequence number for the message. It is only valid in received messages; its value in sent messages is |