From 565df3126357f05c46a689f12fbc1bd8fe60abf2 Mon Sep 17 00:00:00 2001 From: Joel Sherrill Date: Fri, 24 Jan 2020 07:59:38 -0600 Subject: posix-users/message_passing.rst: Add status for cannot block in ISR Updates #3857. --- posix-users/message_passing.rst | 2 ++ 1 file changed, 2 insertions(+) (limited to 'posix-users') 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. -- cgit v1.2.3