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authorJoel Sherrill <joel@rtems.org>2020-01-24 07:59:38 -0600
committerJoel Sherrill <joel@rtems.org>2020-01-24 07:59:38 -0600
commit565df3126357f05c46a689f12fbc1bd8fe60abf2 (patch)
treed97f7aebe4e6089a8ce832d14e0c3b9d4b47375b /posix-users
parent55d69ad1fb277ea7049699780fc7d26edf117283 (diff)
downloadrtems-docs-565df3126357f05c46a689f12fbc1bd8fe60abf2.tar.bz2
posix-users/message_passing.rst: Add status for cannot block in ISR
Updates #3857.
Diffstat (limited to 'posix-users')
-rw-r--r--posix-users/message_passing.rst2
1 files changed, 2 insertions, 0 deletions
diff --git a/posix-users/message_passing.rst b/posix-users/message_passing.rst
index 50c43dd..c003967 100644
--- a/posix-users/message_passing.rst
+++ b/posix-users/message_passing.rst
@@ -550,6 +550,8 @@ mq_receive - Receive a Message from a Message Queue
- The msg_len is less than the ``mq_msgsize`` attribute of the message queue
* - ``EAGAIN``
- The message queue is non-blocking, and the queue is empty
+ * - ``EAGAIN``
+ - The operation would block but has been called from an ISR
* - ``EINTR``
- The message queue is blocking. While the process was waiting for a message
to arrive on the queue, a signal arrived that interrupted the wait.