*Sigh*. As I have documented, I have a test program that demonstrates
quite the reverse, running various protocols and transports mixed together
(at random even!) with multiple threads and it works without issue. (See
multistress.c in the tests/ directory of the nng repo.) If someone
presents me a test case in C that demonstrates otherwise, I’ll be happy to
consider the problem further.
On Mon, Nov 6, 2017 at 11:49 AM Michael Powell <mwpowellhtx@xxxxxxxxx>
wrote:
Fellow Travelers,
At the moment I have a strong suspicion that NNG threaded DLL
integration does not work. It is interesting that the code can be
packaged that way, but running in a threaded environment is a
non-starter. I've documented this fact at length in issues 151, 153,
and to some extent 150.
https://github.com/nanomsg/nng/issues/151
https://github.com/nanomsg/nng/issues/153
https://github.com/nanomsg/nng/issues/150
This is not a "C test case issue", when I've demonstrated that the C
calling conventions work very well as long as test fixtures are run
individually. Therefore, the C calling conventions into the DLL are my
starting point, and not "the C code".
However, when multiple test cases are running concurrently, each in a
different thread, none of them work. It doesn't matter what
protocol/transport is in play; I've tried homogeneous as well as
heterogeneous combinations.
The only error message I receive is a Visual Studio 2015 Test Runner error:
Logs from me test fixtures:
BusTests.That_Bus1_delivers_message_to_both_Bus2_and_Bus3 [0:00.000]
Aborted
Current process Id: 12004
Managed thread Id: 9 // <==============
Running protocol tests for address family 'IPv4'.
Testing using address 'tcp://127.0.0.1:10368'.
Given three 'Nanomsg2.Sharp.Protocols.Bus.LatestBusSocket' instances.
PipelineTests.Load_balancing_works [0:00.000] Aborted
Current process Id: 12004
Managed thread Id: 11 // <==============
Running protocol tests for address family 'IPv4'.
Testing using address 'tcp://127.0.0.1:10304'.
And the runner:
2017.11.06 14:42:23.434 ERROR Process
C:\Users\Michael\AppData\Local\JetBrains\Installations\ReSharperPlatformVs14\JetBrains.ReSharper.TaskRunner.CLR45.x64.exe:12004
exited with code '3'.
Versus a successful run individually:
BusTests.That_Bus1_delivers_message_to_both_Bus2_and_Bus3 [0:00.272]
Success
Current process Id: 10944
Managed thread Id: 9 // <==============
Running protocol tests for address family 'IPv4'.
Testing using address 'tcp://127.0.0.1:10368'.
Given three 'Nanomsg2.Sharp.Protocols.Bus.LatestBusSocket' instances.
And messages can be delivered.
And receive times out.
And Bus1 delivers message to both Bus2 and Bus3.
PipelineTests.Load_balancing_works [0:00.406] Success
Current process Id: 1576
Managed thread Id: 9 // <==============
Running protocol tests for address family 'IPv4'.
Testing using address 'tcp://127.0.0.1:10304'.
Cheers,
Michael Powell
