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| author | Joel Sherrill <joel.sherrill@oarcorp.com> | 2015-05-21 18:08:32 -0500 |
|---|---|---|
| committer | Joel Sherrill <joel.sherrill@oarcorp.com> | 2015-05-21 18:08:32 -0500 |
| commit | 24acc6d0c092c244881dd6ffadc3782a8136fccc (patch) | |
| tree | 864b4985a7a431bd3520e9d815927eee5315c2df /doc/user/msg.t | |
| parent | Merge branch 'master' of ssh://dispatch.rtems.org/data/git/rtems (diff) | |
| parent | doc: Add new documentation section for Epiphany architecture (diff) | |
| download | rtems-24acc6d0c092c244881dd6ffadc3782a8136fccc.tar.bz2 | |
Merge branch 'master' of ssh://dispatch.rtems.org/data/git/rtems
Diffstat (limited to 'doc/user/msg.t')
| -rw-r--r-- | doc/user/msg.t | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/doc/user/msg.t b/doc/user/msg.t index f58d677150..eb3cb3561a 100644 --- a/doc/user/msg.t +++ b/doc/user/msg.t @@ -50,7 +50,10 @@ wait for a message to arrive at a queue. Also, a task may poll a queue for the arrival of a message. The maximum length message which can be sent is set -on a per message queue basis. +on a per message queue basis. The message content must be copied in general +to/from an internal buffer of the message queue or directly to a peer in +certain cases. This copy operation is performed with interrupts disabled. So +it is advisable to keep the messages as short as possible. @subsection Building a Message Queue Attribute Set |