summaryrefslogtreecommitdiff
path: root/microkernel/mach/ipc/sequence_numbering.mdwn
blob: 3aff669d161742869b6760f7d8f50445fc3b109e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
[[license text="""
Copyright © 2007 Free Software Foundation, Inc.

Permission is granted to copy, distribute and/or modify this document under the
terms of the GNU Free Documentation License, Version 1.2 or any later version
published by the Free Software Foundation; with no Invariant Sections, no
Front-Cover Texts, and no Back-Cover Texts.  A copy of the license is included
in the section entitled [[GNU_Free_Documentation_License|/fdl.txt]].

By contributing to this page, you agree to assign copyright for your
contribution to the Free Software Foundation.  The Free Software Foundation
promises to always use either a verbatim copying license or a free
documentation license when publishing your contribution.  We grant you back all
your rights under copyright, including the rights to copy, modify, and
redistribute your contributions.
"""]]

Mach's [[IPC]] mechanism allows for getting access to a message's sequence
number.

This can be used for serializing requests in a multithreaded environment.

* [GNU Mach Reference Manual: 4.2.6 Message
  Receive](http://www.gnu.org/software/hurd/gnumach-doc/Message-Receive.html)
* [GNU Mach Reference Manual: 4.3.6 Receive
  Rights](http://www.gnu.org/software/hurd/gnumach-doc/Receive-Rights.html)