tree ab6049f1957d267d99180d44f83b6d229d58f225
parent 1d5b3af3c18f4e7d6ce782282f902f087dc7a210
author Robert Lubos <robert.lubos@nordicsemi.no> 1685092809 +0200
committer Anas Nashif <anas.nashif@intel.com> 1685106312 -0400

net: sockets: Fix recv() not being interrupted on close()

In case recv() call was waiting for data, and the socket was closed from
another thread, the recv() call would not be interrupted, causing the
receiving thread to be blocked indefinitely.

Fix this, by signalling the condvar the recv() call is waiting on
close(). Additionally, close will now set the socket into error mode,
with EINTR as the error condition, allowing the blocked calls to
recognise that the call was interrupted, and return a proper error code
on the event.

Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>