edb4ca1023
Solution: when a connection breaks and ZMQ_RECONNECT_IVL is set to -1, which means a reconnection will not be attempted, send a message from the I/O thread to the application thread to make the socket call term_endpoint, which is the equivalent of manually calling zmq_disconnect. This way subsequent zmq_connect call to the same endpoint will attempt again to do a connection. Otherwise, for some socket types like SUBs, those new connects will fail as the endpoint is recorded, despite the connection having been permanently closed. Add test cases to exercise this corner case with TCP and IPC.
Guidelines for tests
Write your test case as if you were writing clean application code. It should be safe to compile on all platforms.
The only include file you should use is testutil.hpp. Do not include files from src. Do not use the internal libzmq API or your test case is fair game to be deleted.
If you must write non-portable code, wrap it in #ifdefs to ensure it will compile and run on all systems.
Note that testutil.hpp includes platform.h. Do not include it yourself as it changes location depending on the build system and OS.
All sources must contain the correct header. Please copy from test_system.cpp if you're not certain.
Please use only ANSI C99 in test cases, no C++. This is to make the code more reusable.
On many slower environments, like embedded systems, VMs or CI systems, test might fail because it takes time for sockets to settle after a connect. If you need to add a sleep, please be consistent with all the other tests and use: msleep (SETTLE_TIME);
Building tests in Windows
According to the version of your compiler, you should adapt the path libzmq.lib in the file tests/CMakeLists.txt.
Install CMAKE CMD> CMAKE libzmq/tests CMD> tests.sln CMD> # build all projects in the solution