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C++ Message Queuing Library and Framework

License: GNU Lesser General Public License v3.0

CMake 7.59% Shell 0.36% C 1.14% C++ 90.32% Python 0.59%

fairroot fairmq zeromq shmem c-plus-plus

fairmq's Introduction

FairMQ

C++ Message Queuing Library and Framework

Docs: Book

Find all FairMQ releases here.

Introduction

FairMQ is designed to help implementing large-scale data processing workflows needed in next-generation Particle Physics experiments. FairMQ is written in C++ and aims to

provide an asynchronous message passing abstraction of different data transport technologies,
provide a reasonably efficient data transport service (zero-copy, high throughput),
be data format agnostic, and
provide basic building blocks that can be used to implement higher level data processing workflows.

The core of FairMQ provides an abstract asynchronous message passing API with scalability protocols inspired by ZeroMQ (e.g. PUSH/PULL, PUB/SUB). FairMQ provides multiple implementations for its API (so-called "transports", e.g. zeromq and shmem (latest release of the ofi transport in v1.4.56, removed since v1.5+)) to cover a variety of use cases (e.g. inter-thread, inter-process, inter-node communication) and machines (e.g. Ethernet, Infiniband). In addition to this core functionality FairMQ provides a framework for creating "devices" - actors which are communicating through message passing. FairMQ does not only allow the user to use different transport but also to mix them; i.e: A Device can communicate using different transport on different channels at the same time. Device execution is modelled as a simple state machine that shapes the integration points for the user task. Devices also incorporate a plugin system for runtime configuration and control. Next to the provided devices and plugins the user can extend FairMQ by developing his own plugins to integrate his devices with external configuration and control services.

FairMQ has been developed in the context of its mother project FairRoot - a simulation, reconstruction and analysis framework.

Installation from Source

Recommended:

git clone https://github.com/FairRootGroup/FairMQ fairmq_source
cmake -S fairmq_source -B fairmq_build -GNinja -DCMAKE_BUILD_TYPE=Release
cmake --build fairmq_build
ctest --test-dir fairmq_build --output-on-failure --schedule-random -j<ncpus>
cmake --install fairmq_build --prefix $(pwd)/fairmq_install

Please consult the manpages of your CMake version for more options.

If dependencies are not installed in standard system directories, you can hint the installation location via -DCMAKE_PREFIX_PATH=... or per dependency via -D{DEPENDENCY}_ROOT=... (*_ROOT variables can also be environment variables).

Usage

FairMQ ships as a CMake package, so in your CMakeLists.txt you can discover it like this:

find_package(FairCMakeModules 1.0 REQUIRED)
include(FairFindPackage2)
find_package2(FairMQ)
find_package2_implicit_dependencies()

The FairFindPackage2 module is part of the FairCMakeModules package.

If FairMQ is not installed in system directories, you can hint the installation:

list(PREPEND CMAKE_PREFIX_PATH /path/to/fairmq_install)

Dependencies

Boost
CMake
Doxygen
FairCMakeModules (optionally bundled)
FairLogger
GTest (optionally bundled)
ZeroMQ

Which dependencies are required depends on which components are built.

Supported platform is Linux. macOS is supported on a best-effort basis.

CMake options

On command line:

-DDISABLE_COLOR=ON disables coloured console output.
-DBUILD_TESTING=OFF disables building of tests.
-DBUILD_EXAMPLES=OFF disables building of examples.
-DBUILD_DOCS=ON enables building of API docs.
-DFAIRMQ_CHANNEL_DEFAULT_AUTOBIND=OFF disable channel autoBind by default
You can hint non-system installations for dependent packages, see the #installation-from-source section above

After the find_package(FairMQ) call the following CMake variables are defined:

Variable	Info
`${FairMQ_PACKAGE_DEPENDENCIES}`	the list of public package dependencies
`${FairMQ_<dep>_VERSION}`	the minimum `<dep>` version FairMQ requires
`${FairMQ_<dep>_COMPONENTS}`	the list of `<dep>` components FairMQ depends on
`${FairMQ_PACKAGE_COMPONENTS}`	the list of components FairMQ consists of
`${FairMQ_#COMPONENT#_FOUND}`	`TRUE` if this component was built
`${FairMQ_VERSION}`	the version in format `MAJOR.MINOR.PATCH`
`${FairMQ_GIT_VERSION}`	the version in the format returned by `git describe --tags --dirty --match "v*"`
`${FairMQ_PREFIX}`	the actual installation prefix
`${FairMQ_BINDIR}`	the installation bin directory
`${FairMQ_INCDIR}`	the installation include directory
`${FairMQ_LIBDIR}`	the installation lib directory
`${FairMQ_DATADIR}`	the installation data directory (`../share/fairmq`)
`${FairMQ_CMAKEMODDIR}`	the installation directory of shipped CMake find modules
`${FairMQ_BUILD_TYPE}`	the value of `CMAKE_BUILD_TYPE` at build-time
`${FairMQ_CXX_FLAGS}`	the values of `CMAKE_CXX_FLAGS` and `CMAKE_CXX_FLAGS_${CMAKE_BUILD_TYPE}` at build-time

Documentation

fairmq's People

Contributors

Stargazers

Watchers

fairmq's Issues

Refactor/Document general CMake code as reusable CMake module

Refactor/Package as CMake module(s), possibly contribute to upstream:

color codes
find_package2()
generate_package_dependencies()
generate_package_components()
install_cmake_package()
summary tables

Provide config plugin API for atomic batch operations

System library paths and $LD_LIBRARY_PATH are not searched for plugins

Describe the bug
When passing --plugin dds to a FairMQ device, it cannot find it, even if it is installed into the library directory.

To Reproduce
Steps to reproduce the behavior:

Compile and install with -DBUILD_DDS_PLUGIN=ON.
Run bin/fairmq-bsampler --id asdf --plugin dds from the install prefix:

[ERROR] Uncaught exception reached the top of main: The plugin dds could not be found in the plugin search paths.

Expected behavior
System library paths and $LD_LIBRARY_PATH should be searched, too.

Deadlock at device shutdown

Bug description

This is a bug observed in AliceO2 DPL workflows. Sometimes FairMQ devices being sent a SIGTERM do not exit properly but go into a waiting state (probably deadlock). We've been seeing this for a while in non-terminating unit tests and it is now becoming a real problem with larger workflows where this occurs more often.

A typical log is the following

[66275]: [11:07:42][INFO] Received device shutdown request (signal 15).
[66275]: [11:07:42][INFO] Waiting for graceful device shutdown. Hit Ctrl-C again to abort immediately.
[66275]: [11:07:43][STATE] Entering READY state
** HANGS HERE **

which shows that SIGTERM was received but the process does not actually terminate.

At this point, the backtrace is the following:

thread #1, queue = 'com.apple.main-thread', stop reason = signal SIGSTOP
  * frame #0: 0x00007fff6ad29a16 libsystem_kernel.dylib`__psynch_cvwait + 10
    frame #1: 0x00007fff6aef2589 libsystem_pthread.dylib`_pthread_cond_wait + 732
    frame #2: 0x00007fff68b2dd43 libc++.1.dylib`std::__1::condition_variable::__do_timed_wait(std::__1::unique_lock<std::__1::mutex>&, std::__1::chrono::time_point<std::__1::chrono::system_clock, std::__1::chrono::duration<long long, std::__1::ratio<1l, 1000000000l> > >) + 93
    frame #3: 0x000000010e7e844d libFairMQ.1.3.dylib`std::__1::cv_status std::__1::condition_variable::wait_for<long long, std::__1::ratio<1l, 1000l> >(this=0x00007fe22de1f960, __lk=0x00007ffee5601d78, __d=0x00007ffee5601d70) at __mutex_base:416
    frame #4: 0x000000010e7ec120 libFairMQ.1.3.dylib`fair::mq::fsm::Machine_::ProcessWork(this=0x00007fe22de1f8c0) at FairMQStateMachine.cxx:380
    frame #5: 0x000000010e7ebf7b libFairMQ.1.3.dylib`FairMQStateMachine::ProcessWork(this=0x00007fe22f8e9c00) at FairMQStateMachine.cxx:654
    frame #6: 0x000000010e719e75 libFairMQ.1.3.dylib`FairMQDevice::RunStateMachine(this=0x00007fe22f8e9c00) at FairMQDevice.h:419
    frame #7: 0x000000010e71890d libFairMQ.1.3.dylib`fair::mq::DeviceRunner::Run(this=0x00007ffee5604988) at DeviceRunner.cxx:92
    frame #8: 0x000000010d2f3ea1 libFramework.dylib`doChild(argc=19, argv=0x00007ffee560d188, spec=0x00007fe22c4dfa00) at runDataProcessing.cxx:729
    frame #9: 0x000000010d2f98c9 libFramework.dylib`runStateMachine(workflow=size=1, driverControl=0x00007ffee560b928, driverInfo=0x00007ffee560b7d8, metricsInfos=size=1, frameworkId="ITSDigitWriter") at runDataProcessing.cxx:850
    frame #10: 0x000000010d302727 libFramework.dylib`doMain(argc=19, argv=0x00007ffee560d188, workflow=size=1, channelPolicies=size=1, completionPolicies=size=1, workflowOptions=size=1, configContext=0x00007ffee560c8a8) at runDataProcessing.cxx:1127
    frame #11: 0x000000010a60aa44 digitizer-workflow`main(argc=19, argv=0x00007ffee560d188) at runDataProcessing.h:119
    frame #12: 0x00007fff6abd9015 libdyld.dylib`start + 1
    frame #13: 0x00007fff6abd9015 libdyld.dylib`start + 1

Expected behavior
I expect the device to shutdown properly and without deadlocking once a SIGTERM was received.
The expected log is the following

[66269]: [11:07:42][INFO] Received device shutdown request (signal 15).
[66269]: [11:07:42][INFO] Waiting for graceful device shutdown. Hit Ctrl-C again to abort immediately.
[66269]: [11:07:43][STATE] Entering READY state
[66269]: [11:07:43][STATE] Entering RESETTING_TASK state
[66269]: [11:07:43][STATE] Entering DEVICE_READY state
[66269]: [11:07:43][STATE] Entering RESETTING_DEVICE state
[66269]: [11:07:43][STATE] Entering IDLE state
[66269]: [11:07:43][STATE] Entering EXITING state
[66269]: [11:07:43][STATE] Exiting FairMQ state machine
[66269]: [11:07:43][INFO] Process 66269 is exiting.

To Reproduce
Chances to observe it increase with the number of devices participating in the workflow.
To reproduce it (with high probability),
a) take branch https://github.com/sawenzel/AliceO2/tree/swenzel/simdpltutorial of O2.
b) compile with alidist commit d060276af15ed999c
c) run o2sim -n 10 to produce 10 simulated events
d) run digitizer-workflow --tpc-lanes 1 --tpc-sectors 1 -b

This workflow will sometimes not correctly terminate.

Note
We are still using FairMQ 1.2.6 but I have already verified that the problem is still there with FairMQ 1.3.0

LOG(WARN) on options breaks O2 DPL error reporting

fairmq/options/FairMQProgOptions.cxx now has a line:

LOG(WARN) << "detected unregistered option: " << o;

This causes the O2 DPL to mark all running devices in red due to the presence of the warning message (@ktf: by the way FairMQ v1.2.5 fixes the old WARN problem but introduces this).

An example of error messages is:

[46204]: [17:27:54][WARN] detected unregistered option: --num-files
[46204]: [17:27:54][WARN] detected unregistered option: 1
[46204]: [17:27:54][WARN] detected unregistered option: --num-workers
[46204]: [17:27:54][WARN] detected unregistered option: 4
[46204]: [17:27:54][WARN] detected unregistered option: --sleep
[46204]: [17:27:54][WARN] detected unregistered option: 1

This is due to the way DPL forwards command-line options to the underlying devices, I don't know if there's a proper way to tell FairMQ to simply ignore them?

Or maybe we should fix it somehow on our side?

Thanks!

Document plugins

Find transitive package dependencies dynamically

Do not sort PROJECT_*_DEPENDENCIES in install_cmake_package()

Move example code from FairRoot repo to this repo

New `ADD_REQUIREMENTS_OF` option for `find_package2`

Describe the solution you'd like
find_package2 should support a new option ADD_REQUIREMENTS_OF:

find_package2(PUBLIC Boost
  VERSION 1.67
  COMPONENTS thread system timer
  ADD_REQUIREMENTS_OF asiofi FairLogger
)

Describe alternatives you've considered
A more verbose alternative is currently implemented and does not conflict with this new proposed option:

find_package2(PUBLIC Boost
  VERSION 1.67 ${asiofi_Boost_VERSION} ${FairLogger_Boost_VERSION}
  COMPONENTS thread system timer ${asiofi_Boost_COMPONENTS} ${asiofi_Boost_COMPONENTS}
)

Implement config plugin

Move existing config logic into a builtin plugin.
Initialize FairMQProgOptions in the device constructor.
Support RemoveProperty() or similar.
Create channels implicitely if some attribute (e.g. chans.asdf.0.address) is set
Support all channel properties with --channel-config (again?). E.g. rateLogging= does not work.

Improve FairMQChannel polling to be O(1)

From FairRoot created by rbx : FairRootGroup/FairRoot#566

Current I/O multiplexing implementation in FairMQ for waiting on data on Channels behaves O(n). Polling unix sockets - hidden in the underlying zeromq/nanomsg libraries - is already O(1). All transports we currently support can expose the relevant operating system file descriptors which enables the usage of O(1) polling system calls - kqueue for MacOSX and epoll for Linux. Boost.Asio io services already nicely abstract such system APIs for us and according to Integrating Boost Asio with ZeroMQ integration is feasible.

A mockup shows that the edge-triggered interface exposed by ZeroMQ causes socket starvation in a simple implementation -> Investigate how AZMQ/czmq zloop solve this.

Make unit tests usable for continuous integration: use dynamic port assignment

We have been running into problems with using unit tests in continuous integration because of the fixed ports being used in the configuration of the devices. Since the bind to a port switches dynamically to another port if the requested one is not free, the communication between devices is broken.

Possible solutions:

advanced: run the unit tests using DDS
switch off dynamic port bind and handle the failure by restarting the test with different ports
sequential start of devices, extract port binding from log message and start the connecting devices with this configuration

Reduce coupling of FairMQStateMachine to FairMQDevice

We have discussed two options so far:

Use fairmq/StateMachine.h.
Use a new Boost.SML based implementation (needs C++14).

If we decide for option 2, fairmq/StateMachine.h and related unit tests can be removed from the codebase.

Offer better Send/Receive API

Is your feature request related to a problem? Please describe.
The current Send API takes message pointers by reference. The users should not touch the messages after calling Send on it, because it can be sent out at any moment and will be deleted automatically. However if a timeout or some error condition happen, Send will return an status value and the user can touch the message, change it, or resend it. This is not clear with the current API.

Describe the solution you'd like
Instead we should take messages as unique_ptr that user has to std::move to us, giving up the ownership to the transport. To further support giving back the ownership in case of error or a timeout to the user, we should introduce a custom return value that contains a status flag and optional unique_ptr that will contain the message in case of timeout/error. This return value can override the comparison operators for checking of the status flag, which will make it more compatible with the old interface and ease the transition.

Same convention can be used for Receive, where the returned type will contain the received message.

Option to compile static FairMQ library

I would like to create Docker images my individual FairMQ services, e.g. a sample, a processor, etc. In order to reduce the image size, it would be favourable to compile the service into a static executable which can is then copied into a minimal base image and does not require further dependencies. As far as I am aware, static libraries are needed to achieve that.

An option to compile to compile FairMQ (and by extension FairLogger) into a static library would help to solve this issue.

Implement a PMIx plugin

From FairRoot created by dennisklein : FairRootGroup/FairRoot#746

PMIx seems to be supported by SLURM (1.x from 16.04 and 2.x from 17.11 - so quite recent versions; GSI runs SLURM 14.03 at the moment). Many other RMS seem to support the predecessors PMI-1 and PMI-2. Maybe, at some point in the future, if PMIx takes off, we should consider writing a PMIx FairMQ plugin and controller.

http://www.mcs.anl.gov/papers/P1760.pdf, https://github.com/pmix/pmix-standard (pmix-standard-2.0.pdf), https://pmix.org/

Add build and testsuite pipeline on alfa-ci for this repo

Create a new dashboard on cdash.gsi.de

Extend fairmq-dds-command-ui to allow state changes/queries targeting single devices.

The fairmq-dds-command-ui can query device states and request state changes from devices. It does so for all devices in the topology. What is missing is to allow target specific devices in the topology by providing their id and/or topology path.

Add ability to specify channel polling pattern

I discussed this with Mohammad, putting it here to start a discussion.

As we discussed a while ago, I implement HandleData(), but do not process data immediately, for example waiting for extra inputs of a computation. This means that if I have two devices pushing to a third one, this can result in an imbalance in the queues with all of its consequences.

I would therefore like to have a way to rescale the polling on a channel with respect to another, so that I can reduce the rate at which I get messaged on the fast one. Is that possible? Is there a better alternative?

RDMA transport

From FairRoot created by dennisklein : FairRootGroup/FairRoot#563

In order to support efficient transport on high-bandwidth and low-latency fabrics like Infiniband or Converged Ethernet, we need a RDMA based transport.

Possible candidates:

libfabrics
Shared Memory Communications-RDMA (SMC-R)
- openfabric.org workshop talk
- LWN article
- Merged into Linux 4.11 (not yet released) - phoronix.com article
libfabrics integration into nanomsg
- Work done by Ioannis: CISCO/CERN progress report

Update discussion from 10.3.2017:

Preferred solution is to finish Ioannis' ofi integration into nanomsg.

Update 28.7.2017:

Update 18.7.2018

Increase robustness of unit tests and examples with DDS

Is your feature request related to a problem? Please describe.
Currently, unit tests and examples, that run a topology of devices, are orchestrated with simple fire&forget shell scripts and rely on hard-coded TCP port allocations. This sometimes leads to problems on systems, where needed ports are already in use.

Describe the solution you'd like
Orchestrate unit tests and examples with DDS.

Describe alternatives you've considered
I considered implementing my own orchestrator, which would just duplicate many things DDS already solves. I also considered using systemd for process mgmt, but it is not available on all our supported platforms (the topology mgmt still has to be done with custom code).

Additional context
A pending feature request FairRootGroup/DDS#205 will help a lot.

Cleanup Channel/Socket

get rid of unused interfaces (no deprecation needed, since these are unused (at least not known to us)):
- get rid of SetSendTimeout/GetSendTimeout/SetReceiveTimeout/GetReceiveTimeout (at least from the general interface). Values set by these FairMQSocket methods are currently used only inside each transport - they are transport details. The actual transfer timeouts are controlled by the user via transfer calls, e.g.: Receive(FairMQMessagePtr& msgVec, const int timeout = 0). It is up to the transport how to implement it these. A general timeout value currently has no meaning in the user-facing API.
- get rid of GetOption/SetOption and replace with specific API, such as SetLinger/GetLinger. This is less error-prone and more type-safe. Currently these interfaces are only used internally in FairMQDevice for high watermark and kernel transfer size settings.
- get rid of general GetSocket interface - it returns internal socket representation, which should not be visible from the interface API.
~~rename SendAsync/ReceiveAsync to more clear TrySend/TryReceive~~ Remove SendAsync/ReceiveAsync, instead Send/Receive with a timeout of 0 can be used (since these are used, this will require a deprecation warning iteration). This is already the case in the transport API, but not yet in Channel API.
move Bind/Connect/Attach implementations from device class to channel class.
introduce (experimental?) value-based move-only fair::mq::Message in parallel to existing FairMQMessage. As a consequence this will require new overloads for send/receive and serialization APIs.

Anything else?

Adopt polymorphic memory resources from AliceO2

@mkrzewic @ktf Action item from today's Framework & Friends meeting.

Spurious (?) warning on startup

Since I migrated to the split FairMQ I started to get:

[WARN] FairMQProgOptions not available! Using defaults.
[WARN] FairMQProgOptions not available! Using defaults.
[WARN] FairMQProgOptions not available! Using defaults.
[WARN] FairMQProgOptions not available! Using defaults.

what is that about?

Update CMake options in README

error: no matching function for call to 'find_if'

With Boost 1.64 everything works, but with Boost 1.66 and 1.67:

[  0%] Building CXX object fairmq/CMakeFiles/FairMQ.dir/DeviceRunner.cxx.o
In file included from /home/dklein/alibuild/sw/SOURCES/FairMQ/v1.2.0/v1.2.0/fairmq/Tools.h:14:0,
                 from /home/dklein/alibuild/sw/SOURCES/FairMQ/v1.2.0/v1.2.0/fairmq/Plugin.h:12,
                 from /home/dklein/alibuild/sw/SOURCES/FairMQ/v1.2.0/v1.2.0/fairmq/PluginManager.h:12,
                 from /home/dklein/alibuild/sw/SOURCES/FairMQ/v1.2.0/v1.2.0/fairmq/DeviceRunner.h:13,
                 from /home/dklein/alibuild/sw/SOURCES/FairMQ/v1.2.0/v1.2.0/fairmq/DeviceRunner.cxx:9:
/home/dklein/alibuild/sw/SOURCES/FairMQ/v1.2.0/v1.2.0/fairmq/tools/Network.h: In function ‘std::__cxx11::string fair::mq::tools::getIpFromHostname(const string&)’:
/home/dklein/alibuild/sw/SOURCES/FairMQ/v1.2.0/v1.2.0/fairmq/tools/Network.h:143:10: error: no matching function for call to ‘find_if(boost::asio::ip::basic_resolver<boost::asio::ip::tcp>::results_type, boost::asio::ip::basic_resolver<boost::asio::ip::tcp>::iterator&, fair::mq::tools::getIpFromHostname(const string&)::<lambda(const endpoint&)>)’
         });
          ^
In file included from /usr/include/c++/7/algorithm:62:0,
                 from /home/dklein/alibuild/sw/fedora27_x86-64/boost/v1.66.0-1/include/boost/any.hpp:17,
                 from /home/dklein/alibuild/sw/SOURCES/FairMQ/v1.2.0/v1.2.0/fairmq/EventManager.h:22,
                 from /home/dklein/alibuild/sw/SOURCES/FairMQ/v1.2.0/v1.2.0/fairmq/DeviceRunner.h:12,
                 from /home/dklein/alibuild/sw/SOURCES/FairMQ/v1.2.0/v1.2.0/fairmq/DeviceRunner.cxx:9:
/usr/include/c++/7/bits/stl_algo.h:3923:5: note: candidate: template<class _IIter, class _Predicate> _IIter std::find_if(_IIter, _IIter, _Predicate)
     find_if(_InputIterator __first, _InputIterator __last,
     ^~~~~~~
/usr/include/c++/7/bits/stl_algo.h:3923:5: note:   template argument deduction/substitution failed:
In file included from /home/dklein/alibuild/sw/SOURCES/FairMQ/v1.2.0/v1.2.0/fairmq/Tools.h:14:0,
                 from /home/dklein/alibuild/sw/SOURCES/FairMQ/v1.2.0/v1.2.0/fairmq/Plugin.h:12,
                 from /home/dklein/alibuild/sw/SOURCES/FairMQ/v1.2.0/v1.2.0/fairmq/PluginManager.h:12,
                 from /home/dklein/alibuild/sw/SOURCES/FairMQ/v1.2.0/v1.2.0/fairmq/DeviceRunner.h:13,
                 from /home/dklein/alibuild/sw/SOURCES/FairMQ/v1.2.0/v1.2.0/fairmq/DeviceRunner.cxx:9:
/home/dklein/alibuild/sw/SOURCES/FairMQ/v1.2.0/v1.2.0/fairmq/tools/Network.h:143:10: note:   deduced conflicting types for parameter ‘_IIter’ (‘boost::asio::ip::basic_resolver_results<boost::asio::ip::tcp>’ and ‘boost::asio::ip::basic_resolver_iterator<boost::asio::ip::tcp>’)
         });
          ^
/home/dklein/alibuild/sw/SOURCES/FairMQ/v1.2.0/v1.2.0/fairmq/tools/Network.h: In function ‘std::__cxx11::string fair::mq::tools::getIpFromHostname(const string&, boost::asio::io_service&)’:
/home/dklein/alibuild/sw/SOURCES/FairMQ/v1.2.0/v1.2.0/fairmq/tools/Network.h:169:10: error: no matching function for call to ‘find_if(boost::asio::ip::basic_resolver<boost::asio::ip::tcp>::results_type, boost::asio::ip::basic_resolver<boost::asio::ip::tcp>::iterator&, fair::mq::tools::getIpFromHostname(const string&, boost::asio::io_service&)::<lambda(const endpoint&)>)’
         });
          ^
In file included from /usr/include/c++/7/algorithm:62:0,
                 from /home/dklein/alibuild/sw/fedora27_x86-64/boost/v1.66.0-1/include/boost/any.hpp:17,
                 from /home/dklein/alibuild/sw/SOURCES/FairMQ/v1.2.0/v1.2.0/fairmq/EventManager.h:22,
                 from /home/dklein/alibuild/sw/SOURCES/FairMQ/v1.2.0/v1.2.0/fairmq/DeviceRunner.h:12,
                 from /home/dklein/alibuild/sw/SOURCES/FairMQ/v1.2.0/v1.2.0/fairmq/DeviceRunner.cxx:9:
/usr/include/c++/7/bits/stl_algo.h:3923:5: note: candidate: template<class _IIter, class _Predicate> _IIter std::find_if(_IIter, _IIter, _Predicate)
     find_if(_InputIterator __first, _InputIterator __last,
     ^~~~~~~
/usr/include/c++/7/bits/stl_algo.h:3923:5: note:   template argument deduction/substitution failed:
In file included from /home/dklein/alibuild/sw/SOURCES/FairMQ/v1.2.0/v1.2.0/fairmq/Tools.h:14:0,
                 from /home/dklein/alibuild/sw/SOURCES/FairMQ/v1.2.0/v1.2.0/fairmq/Plugin.h:12,
                 from /home/dklein/alibuild/sw/SOURCES/FairMQ/v1.2.0/v1.2.0/fairmq/PluginManager.h:12,
                 from /home/dklein/alibuild/sw/SOURCES/FairMQ/v1.2.0/v1.2.0/fairmq/DeviceRunner.h:13,
                 from /home/dklein/alibuild/sw/SOURCES/FairMQ/v1.2.0/v1.2.0/fairmq/DeviceRunner.cxx:9:
/home/dklein/alibuild/sw/SOURCES/FairMQ/v1.2.0/v1.2.0/fairmq/tools/Network.h:169:10: note:   deduced conflicting types for parameter ‘_IIter’ (‘boost::asio::ip::basic_resolver_results<boost::asio::ip::tcp>’ and ‘boost::asio::ip::basic_resolver_iterator<boost::asio::ip::tcp>’)
         });
          ^
make[2]: *** [fairmq/CMakeFiles/FairMQ.dir/build.make:63: fairmq/CMakeFiles/FairMQ.dir/DeviceRunner.cxx.o] Error 1
make[1]: *** [CMakeFiles/Makefile2:1113: fairmq/CMakeFiles/FairMQ.dir/all] Error 2
make: *** [Makefile:141: all] Error 2

Turn device algorithm on master thread

The current choice of letting device algorithm spawn on a non-standard thread (thread 2) is problematic.

I've had, for instance, problems with certain (thread-aware) classes which I initialize prior to setting up the device and which I then give to the device constructor. Letting the main algorithm turn on the master thread would avoid such problems.

Disable rate logging

I could not find any way to disable the rate logging. Is there one? If not, could it be added?

Add Doxygen build target

Add support for msgpack 3.x

Ports used during tests

In our tests (see here, CERN account required) we have noticed that the FairMQ.Protocols test systematically fails on a macOS node.

Turns out, the test tries to listen to the TCP port 127.0.0.1:6000 which is also used by another process running independently on the same system (X11.bin for the record).

I don't know if it's possible to either automatically pick a different port at the beginning of the test (this would be ideal), or maybe hardcode a different port for the moment. For instance, port 7654 seems to be a better candidate 😄

(cc'ing @dennisklein)

Update READMEs in example folder

Implement message order on top of DDS custom commands

From FairRoot created by dennisklein : FairRootGroup/FairRoot#680

DDS custom commands do not guarantee order. So, we need to implement our own message order. A naive approach would be to wait for a reply on each message. A more sophisticated approach would be to implement a connection-aware protocol like TCP which can maintain order ...

Race conditions when throwing an exception

Looks like there is a race condition when trowing an exception and catching it inside the ConditonalRun() method of a FairMQDevice. This seems to be yet again another Control plugin related issue. Traceback as follows:

Sampling process 97930 for 3 seconds with 1 millisecond of run time between samples
Sampling completed, processing symbols...
Analysis of sampling test_Framework_test_ProcessorOptions (pid 97930) every 1 millisecond
Process:         test_Framework_test_ProcessorOptions [97930]
Path:            /Users/ktf/work/active/sw/BUILD/e99daaedb3f7bac4e081a3875b69513b5ff06c2d/O2/bin/test_Framework_test_ProcessorOptions
Load Address:    0x10a113000
Identifier:      test_Framework_test_ProcessorOptions
Version:         0
Code Type:       X86-64
Parent Process:  test_Framework_test_ProcessorOptions [97926]

Date/Time:       2018-10-02 16:37:40.996 +0200
Launch Time:     2018-10-02 16:36:52.458 +0200
OS Version:      Mac OS X 10.13.6 (17G65)
Report Version:  7
Analysis Tool:   /usr/bin/sample

Physical footprint:         5900K
Physical footprint (peak):  5900K
----

Call graph:
    2623 Thread_24274050   DispatchQueue_1: com.apple.main-thread  (serial)
    + 2623 start  (in libdyld.dylib) + 1  [0x7fff58e86015]
    +   2623 main  (in test_Framework_test_ProcessorOptions) + 3330  [0x10a124f22]  runDataProcessing.h:119
    +     2623 doMain(int, char**, std::__1::vector<o2::framework::DataProcessorSpec, std::__1::allocator<o2::framework::DataProcessorSpec> > const&, std::__1::vector<o2::framework::ChannelConfigurationPolicy, std::__1::allocator<o2::framework::ChannelConfigurationPolicy> > const&, std::__1::vector<o2::framework::CompletionPolicy, std::__1::allocator<o2::framework::CompletionPolicy> > const&, std::__1::vector<o2::framework::ConfigParamSpec, std::__1::allocator<o2::framework::ConfigParamSpec> > const&, o2::framework::ConfigContext&)  (in libFramework.dylib) + 8124  [0x10c070e5c]  runDataProcessing.cxx:1143
    +       2623 runStateMachine(std::__1::vector<o2::framework::DataProcessorSpec, std::__1::allocator<o2::framework::DataProcessorSpec> > const&, o2::framework::DriverControl&, o2::framework::DriverInfo&, std::__1::vector<o2::framework::DeviceMetricsInfo, std::__1::allocator<o2::framework::DeviceMetricsInfo> >&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >)  (in libFramework.dylib) + 14611  [0x10c067b43]  runDataProcessing.cxx:855
    +         2623 doChild(int, char**, o2::framework::DeviceSpec const&)  (in libFramework.dylib) + 7260  [0x10c0631cc]  runDataProcessing.cxx:733
    +           2623 fair::mq::DeviceRunner::~DeviceRunner()  (in libFramework.dylib) + 21  [0x10c063f35]  DeviceRunner.h:51
    +             2623 fair::mq::DeviceRunner::~DeviceRunner()  (in libFramework.dylib) + 58  [0x10c0751fa]  DeviceRunner.h:51
    +               2623 fair::mq::PluginManager::~PluginManager()  (in libFramework.dylib) + 21  [0x10c075305]  PluginManager.h:56
    +                 2623 fair::mq::PluginManager::~PluginManager()  (in libFramework.dylib) + 1131  [0x10c07601b]  PluginManager.h:58
    +                   2623 std::__1::map<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::unique_ptr<fair::mq::Plugin, std::__1::default_delete<fair::mq::Plugin> >, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::allocator<std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const, std::__1::unique_ptr<fair::mq::Plugin, std::__1::default_delete<fair::mq::Plugin> > > > >::~map()  (in libFramework.dylib) + 21  [0x10c0762b5]  __tree:1490
    +                     2623 std::__1::map<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::unique_ptr<fair::mq::Plugin, std::__1::default_delete<fair::mq::Plugin> >, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::allocator<std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const, std::__1::unique_ptr<fair::mq::Plugin, std::__1::default_delete<fair::mq::Plugin> > > > >::~map()  (in libFramework.dylib) + 21  [0x10c076545]  __tree:1490
    +                       2623 std::__1::__tree<std::__1::__value_type<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::unique_ptr<fair::mq::Plugin, std::__1::default_delete<fair::mq::Plugin> > >, std::__1::__map_value_compare<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::__value_type<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::unique_ptr<fair::mq::Plugin, std::__1::default_delete<fair::mq::Plugin> > >, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, true>, std::__1::allocator<std::__1::__value_type<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::unique_ptr<fair::mq::Plugin, std::__1::default_delete<fair::mq::Plugin> > > > >::~__tree()  (in libFramework.dylib) + 21  [0x10c076565]  __tree:1814
    +                         2623 std::__1::__tree<std::__1::__value_type<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::unique_ptr<fair::mq::Plugin, std::__1::default_delete<fair::mq::Plugin> > >, std::__1::__map_value_compare<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::__value_type<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::unique_ptr<fair::mq::Plugin, std::__1::default_delete<fair::mq::Plugin> > >, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, true>, std::__1::allocator<std::__1::__value_type<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::unique_ptr<fair::mq::Plugin, std::__1::default_delete<fair::mq::Plugin> > > > >::~__tree()  (in libFramework.dylib) + 79  [0x10c0765bf]  __tree:1821
    +                           2623 std::__1::__tree<std::__1::__value_type<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::unique_ptr<fair::mq::Plugin, std::__1::default_delete<fair::mq::Plugin> > >, std::__1::__map_value_compare<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::__value_type<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::unique_ptr<fair::mq::Plugin, std::__1::default_delete<fair::mq::Plugin> > >, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, true>, std::__1::allocator<std::__1::__value_type<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::unique_ptr<fair::mq::Plugin, std::__1::default_delete<fair::mq::Plugin> > > > >::destroy(std::__1::__tree_node<std::__1::__value_type<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::unique_ptr<fair::mq::Plugin, std::__1::default_delete<fair::mq::Plugin> > >, void*>*)  (in libFramework.dylib) + 241  [0x10c0766c1]  memory:1732
    +                             2623 std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const, std::__1::unique_ptr<fair::mq::Plugin, std::__1::default_delete<fair::mq::Plugin> > >::~pair()  (in libFramework.dylib) + 21  [0x10c076735]  utility:312
    +                               2623 std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const, std::__1::unique_ptr<fair::mq::Plugin, std::__1::default_delete<fair::mq::Plugin> > >::~pair()  (in libFramework.dylib) + 192  [0x10c076800]  memory:2285
    +                                 2623 fair::mq::plugins::Control::~Control()  (in libFairMQ.1.3.dylib) + 14  [0x10c916e4e]  Control.cxx:382
    +                                   2623 fair::mq::plugins::Control::~Control()  (in libFairMQ.1.3.dylib) + 43  [0x10c916d4b]  Control.cxx:383
    +                                     2623 std::__1::thread::join()  (in libc++.1.dylib) + 24  [0x7fff56e1b828]
    +                                       2623 _pthread_join  (in libsystem_pthread.dylib) + 626  [0x7fff591a2824]
    +                                         2623 __semwait_signal  (in libsystem_kernel.dylib) + 10  [0x7fff58fd6d82]
    2623 Thread_24274063
    + 2623 thread_start  (in libsystem_pthread.dylib) + 13  [0x7fff5919dbf9]
    +   2623 _pthread_start  (in libsystem_pthread.dylib) + 377  [0x7fff5919e50d]
    +     2623 _pthread_body  (in libsystem_pthread.dylib) + 340  [0x7fff5919e661]
    +       2623 void* std::__1::__thread_proxy<std::__1::tuple<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_delete<std::__1::__thread_struct> >, void (fair::mq::plugins::Control::*)(), fair::mq::plugins::Control*> >(void*)  (in libFairMQ.1.3.dylib) + 62  [0x10c91779e]  type_traits:4369
    +         2623 fair::mq::plugins::Control::StaticMode()  (in libFairMQ.1.3.dylib) + 28  [0x10c913b1c]  Control.cxx:244
    +           2623 fair::mq::plugins::Control::RunStartupSequence()  (in libFairMQ.1.3.dylib) + 120  [0x10c9163e8]  Control.cxx:368
    +             2623 fair::mq::plugins::Control::WaitForNextState()  (in libFairMQ.1.3.dylib) + 75  [0x10c91696b]  Control.cxx:232
    +               2623 std::__1::condition_variable::wait(std::__1::unique_lock<std::__1::mutex>&)  (in libc++.1.dylib) + 18  [0x7fff56ddacb0]
    +                 2623 _pthread_cond_wait  (in libsystem_pthread.dylib) + 732  [0x7fff5919f589]
    +                   2623 __psynch_cvwait  (in libsystem_kernel.dylib) + 10  [0x7fff58fd6a16]
    2623 Thread_24274064
    + 2623 thread_start  (in libsystem_pthread.dylib) + 13  [0x7fff5919dbf9]
    +   2623 _pthread_start  (in libsystem_pthread.dylib) + 377  [0x7fff5919e50d]
    +     2623 _pthread_body  (in libsystem_pthread.dylib) + 340  [0x7fff5919e661]
    +       2623 void* std::__1::__thread_proxy<std::__1::tuple<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_delete<std::__1::__thread_struct> >, void (fair::mq::plugins::Control::*)(), fair::mq::plugins::Control*> >(void*)  (in libFairMQ.1.3.dylib) + 62  [0x10c91779e]  type_traits:4369
    +         2623 fair::mq::plugins::Control::SignalHandler()  (in libFairMQ.1.3.dylib) + 99  [0x10c915ba3]  thread:448
    +           2623 std::__1::this_thread::sleep_for(std::__1::chrono::duration<long long, std::__1::ratio<1l, 1000000000l> > const&)  (in libc++.1.dylib) + 73  [0x7fff56e1b934]
    +             2620 nanosleep  (in libsystem_c.dylib) + 199  [0x7fff58f51724]
    +             ! 2620 __semwait_signal  (in libsystem_kernel.dylib) + 10  [0x7fff58fd6d82]
    +             2 nanosleep  (in libsystem_c.dylib) + 91  [0x7fff58f516b8]
    +             ! 2 clock_get_time  (in libsystem_kernel.dylib) + 79  [0x7fff58fbbfb6]
    +             !   2 mach_msg  (in libsystem_kernel.dylib) + 60  [0x7fff58fcc724]
    +             !     2 mach_msg_trap  (in libsystem_kernel.dylib) + 10  [0x7fff58fcd20a]
    +             1 nanosleep  (in libsystem_c.dylib) + 163  [0x7fff58f51700]
    2623 Thread_24274066
    + 2623 thread_start  (in libsystem_pthread.dylib) + 13  [0x7fff5919dbf9]
    +   2623 _pthread_start  (in libsystem_pthread.dylib) + 377  [0x7fff5919e50d]
    +     2623 _pthread_body  (in libsystem_pthread.dylib) + 340  [0x7fff5919e661]
    +       2623 thread_routine(void*)  (in libzmq.5.dylib) + 45  [0x10ef34ad7]
    +         2623 zmq::kqueue_t::loop()  (in libzmq.5.dylib) + 270  [0x10ef0c414]
    +           2623 kevent  (in libsystem_kernel.dylib) + 10  [0x7fff58fd7bea]
    2623 Thread_24274067
    + 2623 thread_start  (in libsystem_pthread.dylib) + 13  [0x7fff5919dbf9]
    +   2623 _pthread_start  (in libsystem_pthread.dylib) + 377  [0x7fff5919e50d]
    +     2623 _pthread_body  (in libsystem_pthread.dylib) + 340  [0x7fff5919e661]
    +       2623 thread_routine(void*)  (in libzmq.5.dylib) + 45  [0x10ef34ad7]
    +         2615 zmq::kqueue_t::loop()  (in libzmq.5.dylib) + 270  [0x10ef0c414]
    +         ! 2615 kevent  (in libsystem_kernel.dylib) + 10  [0x7fff58fd7bea]
    +         8 zmq::kqueue_t::loop()  (in libzmq.5.dylib) + 155  [0x10ef0c3a1]
    +           8 zmq::poller_base_t::execute_timers()  (in libzmq.5.dylib) + 76  [0x10ef1a726]
    +             8 zmq::tcp_connecter_t::start_connecting()  (in libzmq.5.dylib) + 19  [0x10ef331bf]
    +               5 zmq::tcp_connecter_t::open()  (in libzmq.5.dylib) + 174  [0x10ef338ac]
    +               : 5 zmq::tcp_address_t::resolve(char const*, bool, bool, bool)  (in libzmq.5.dylib) + 1209  [0x10ef319d3]
    +               :   5 zmq::tcp_address_t::resolve_hostname(char const*, bool, bool)  (in libzmq.5.dylib) + 91  [0x10ef312e3]
    +               :     4 getaddrinfo  (in libsystem_info.dylib) + 61  [0x7fff58f789ad]
    +               :     | 4 _getaddrinfo_internal  (in libsystem_info.dylib) + 242  [0x7fff58f98f42]
    +               :     |   3 si_addrinfo  (in libsystem_info.dylib) + 1823  [0x7fff58f790df]
    +               :     |   + 3 si_addrinfo_list  (in libsystem_info.dylib) + 760  [0x7fff58f7fc08]
    +               :     |   +   3 si_addrinfo_v4  (in libsystem_info.dylib) + 609  [0x7fff58f9ce51]
    +               :     |   +     1 LI_ils_create  (in libsystem_info.dylib) + 1657  [0x7fff58f736a9]
    +               :     |   +     ! 1 padsize  (in libsystem_info.dylib) + 95  [0x7fff58f9365f]
    +               :     |   +     1 LI_ils_create  (in libsystem_info.dylib) + 3820  [0x7fff58f73f1c]
    +               :     |   +     ! 1 malloc  (in libsystem_malloc.dylib) + 24  [0x7fff5902e4c7]
    +               :     |   +     !   1 malloc_zone_malloc  (in libsystem_malloc.dylib) + 103  [0x7fff5902f1bd]
    +               :     |   +     !     1 szone_malloc_should_clear  (in libsystem_malloc.dylib) + 422  [0x7fff5902f3bf]
    +               :     |   +     !       1 tiny_malloc_from_free_list  (in libsystem_malloc.dylib) + 198  [0x7fff59030259]
    +               :     |   +     1 LI_ils_create  (in libsystem_info.dylib) + 567  [0x7fff58f73267]
    +               :     |   1 si_addrinfo  (in libsystem_info.dylib) + 1348  [0x7fff58f78f04]
    +               :     |     1 _gai_numerichost  (in libsystem_info.dylib) + 833  [0x7fff58f9df41]
    +               :     1 getaddrinfo  (in libsystem_info.dylib) + 0  [0x7fff58f78970]
    +               2 zmq::tcp_connecter_t::open()  (in libzmq.5.dylib) + 273  [0x10ef3390f]
    +               : 2 zmq::open_socket(int, int, int)  (in libzmq.5.dylib) + 15  [0x10ef09516]
    +               :   2 socket  (in libsystem_kernel.dylib) + 0,10  [0x7fff58fd84c8,0x7fff58fd84d2]
    +               1 zmq::tcp_connecter_t::open()  (in libzmq.5.dylib) + 709  [0x10ef33ac3]
    +                 1 __connect  (in libsystem_kernel.dylib) + 10  [0x7fff58fd6096]
    2623 Thread_24274069
      2623 thread_start  (in libsystem_pthread.dylib) + 13  [0x7fff5919dbf9]
        2623 _pthread_start  (in libsystem_pthread.dylib) + 377  [0x7fff5919e50d]
          2623 _pthread_body  (in libsystem_pthread.dylib) + 340  [0x7fff5919e661]
            2623 void* std::__1::__thread_proxy<std::__1::tuple<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_delete<std::__1::__thread_struct> >, void (fair::mq::plugins::Control::*)(), fair::mq::plugins::Control*> >(void*)  (in libFairMQ.1.3.dylib) + 62  [0x10c91779e]  type_traits:4369
              2623 fair::mq::plugins::Control::HandleShutdownSignal()  (in libFairMQ.1.3.dylib) + 130  [0x10c916a82]  Control.cxx:313
                2623 fair::mq::plugins::Control::RunShutdownSequence()  (in libFairMQ.1.3.dylib) + 248  [0x10c916898]  Control.cxx:347
                  2623 fair::mq::plugins::Control::WaitForNextState()  (in libFairMQ.1.3.dylib) + 75  [0x10c91696b]  Control.cxx:232
                    2623 std::__1::condition_variable::wait(std::__1::unique_lock<std::__1::mutex>&)  (in libc++.1.dylib) + 18  [0x7fff56ddacb0]
                      2623 _pthread_cond_wait  (in libsystem_pthread.dylib) + 732  [0x7fff5919f589]
                        2623 __psynch_cvwait  (in libsystem_kernel.dylib) + 10  [0x7fff58fd6a16]

Total number in stack (recursive counted multiple, when >=5):
        5       _pthread_body  (in libsystem_pthread.dylib) + 340  [0x7fff5919e661]
        5       _pthread_start  (in libsystem_pthread.dylib) + 377  [0x7fff5919e50d]
        5       thread_start  (in libsystem_pthread.dylib) + 13  [0x7fff5919dbf9]

Sort by top of stack, same collapsed (when >= 5):
        __psynch_cvwait  (in libsystem_kernel.dylib)        5246
        __semwait_signal  (in libsystem_kernel.dylib)        5243
        kevent  (in libsystem_kernel.dylib)        5238

Binary Images:
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    0x7fff58eb1000 -     0x7fff58eb1ff7  liblaunch.dylib (1205.70.9) <B184B521-FF24-3142-AFAF-23D170CF918C> /usr/lib/system/liblaunch.dylib
    0x7fff58eb2000 -     0x7fff58eb6ffb  libmacho.dylib (906) <1902A611-081A-3452-B11E-EBD1B166E831> /usr/lib/system/libmacho.dylib
    0x7fff58eb7000 -     0x7fff58eb9ff3  libquarantine.dylib (86) <26C0BA22-8F93-3A07-9A4E-C8D53D2CE42E> /usr/lib/system/libquarantine.dylib
    0x7fff58eba000 -     0x7fff58ebbff3  libremovefile.dylib (45) <711E18B2-5BBE-3211-A916-56740C27D17A> /usr/lib/system/libremovefile.dylib
    0x7fff58ebc000 -     0x7fff58ed3fff  libsystem_asl.dylib (356.70.1) <39E46A6F-B228-3E78-B83E-1779F9707A39> /usr/lib/system/libsystem_asl.dylib
    0x7fff58ed4000 -     0x7fff58ed4fff  libsystem_blocks.dylib (67) <17303FDF-0D2D-3963-B05E-B4DF63052D47> /usr/lib/system/libsystem_blocks.dylib
    0x7fff58ed5000 -     0x7fff58f5eff7  libsystem_c.dylib (1244.50.9) <1187BFE8-4576-3247-8177-481554E1F9E7> /usr/lib/system/libsystem_c.dylib
    0x7fff58f5f000 -     0x7fff58f62ffb  libsystem_configuration.dylib (963.50.8) <DF6B5287-203E-30CB-9947-78DF446C72B8> /usr/lib/system/libsystem_configuration.dylib
    0x7fff58f63000 -     0x7fff58f66ffb  libsystem_coreservices.dylib (51) <486000D3-D8CB-3BE7-8EE5-8BF380DE6DF7> /usr/lib/system/libsystem_coreservices.dylib
    0x7fff58f67000 -     0x7fff58f68fff  libsystem_darwin.dylib (1244.50.9) <09C21A4A-9EE0-388B-A9D9-DFF8F6758791> /usr/lib/system/libsystem_darwin.dylib
    0x7fff58f69000 -     0x7fff58f6fff7  libsystem_dnssd.dylib (878.70.2) <3290768B-54DE-3AB6-B155-AC0950AC5564> /usr/lib/system/libsystem_dnssd.dylib
    0x7fff58f70000 -     0x7fff58fb9ff7  libsystem_info.dylib (517.30.1) <AB634A98-B8AA-3804-8436-38261FC8EC4D> /usr/lib/system/libsystem_info.dylib
    0x7fff58fba000 -     0x7fff58fe0ff7  libsystem_kernel.dylib (4570.71.2) <F22B8D73-69D8-36D7-BF66-7F9AC70C08C2> /usr/lib/system/libsystem_kernel.dylib
    0x7fff58fe1000 -     0x7fff5902cfcb  libsystem_m.dylib (3147.50.1) <8CFB51C9-B422-3379-8552-064C63943A23> /usr/lib/system/libsystem_m.dylib
    0x7fff5902d000 -     0x7fff5904cfff  libsystem_malloc.dylib (140.50.6) <7FD43735-9DDD-300E-8C4A-F909A74BDF49> /usr/lib/system/libsystem_malloc.dylib
    0x7fff5904d000 -     0x7fff5917dff7  libsystem_network.dylib (1229.70.2) <5E86B2DE-9E15-3354-8714-4094ED5F698D> /usr/lib/system/libsystem_network.dylib
    0x7fff5917e000 -     0x7fff59188ffb  libsystem_networkextension.dylib (767.70.1) <D23EAFC1-E8BD-34D5-969C-6E45A1C3B4E4> /usr/lib/system/libsystem_networkextension.dylib
    0x7fff59189000 -     0x7fff59192ff3  libsystem_notify.dylib (172) <08012EC0-2CD2-34BE-BF93-E7F56491299A> /usr/lib/system/libsystem_notify.dylib
    0x7fff59193000 -     0x7fff5919aff7  libsystem_platform.dylib (161.50.1) <6355EE2D-5456-3CA8-A227-B96E8F1E2AF8> /usr/lib/system/libsystem_platform.dylib
    0x7fff5919b000 -     0x7fff591a6fff  libsystem_pthread.dylib (301.50.1) <0E51CCBA-91F2-34E1-BF2A-FEEFD3D321E4> /usr/lib/system/libsystem_pthread.dylib
    0x7fff591a7000 -     0x7fff591aafff  libsystem_sandbox.dylib (765.70.1) <553DFCC6-9D31-3B9C-AB7C-30F6F265786D> /usr/lib/system/libsystem_sandbox.dylib
    0x7fff591ab000 -     0x7fff591acff3  libsystem_secinit.dylib (30) <DE8D14E8-A276-3FF8-AE13-77F7040F33C1> /usr/lib/system/libsystem_secinit.dylib
    0x7fff591ad000 -     0x7fff591b4ff7  libsystem_symptoms.dylib (820.60.2) <585BDFA2-D54D-39D0-8046-44E824DABD43> /usr/lib/system/libsystem_symptoms.dylib
    0x7fff591b5000 -     0x7fff591c8fff  libsystem_trace.dylib (829.70.1) <3A6CB706-8CA6-3616-8AFC-14AAD7FAF187> /usr/lib/system/libsystem_trace.dylib
    0x7fff591ca000 -     0x7fff591cfff7  libunwind.dylib (35.3) <BEF3FB49-5604-3B5F-82B5-332B80023AC3> /usr/lib/system/libunwind.dylib
    0x7fff591d0000 -     0x7fff591fdff7  libxpc.dylib (1205.70.9) <0BC7AD67-671D-31D4-8B88-C317B8379598> /usr/lib/system/libxpc.dylib
Sample analysis of process 97930 written to file /dev/stdout

notice how runDataProcessing.cxx:733 is a catch (std::exception& e). Moving the DeviceRunner out of the try..catch does not work either.

sleeping in ConditionalRun inhibits SIGINT

I've a device which overrides ConditionalRun() and sleeps for a long time. Looks like any external SIGINT / SIGTERM sent to it is delayed until the end of the sleep. Is that expected? How can I have some interruptible sleep for a given device?

Deadlock on sleep

Whenever one sleeps in the ConditionalRun, FairMQ deadlocks with it at:

    frame #0: 0x00007fff73f4e7de libsystem_kernel.dylib`__psynch_cvwait + 10
    frame #1: 0x00007fff74008593 libsystem_pthread.dylib`_pthread_cond_wait + 724
    frame #2: 0x00007fff714e7bda libc++.1.dylib`std::__1::condition_variable::wait(std::__1::unique_lock<std::__1::mutex>&) + 18
    frame #3: 0x0000000109f1b6cb libFairMQ.1.3.dylib`void fair::mq::fsm::Machine_::StopFct::operator(this=<unavailable>, (null)=<unavailable>, fsm=0x00007f9f8cd16f90, (null)=<unavailable>, ts=<unavailable
>)<fair::mq::fsm::STOP_FSM_EVENT, boost::msm::back::state_machine<fair::mq::fsm::Machine_, boost::parameter::void_, boost::parameter::void_, boost::parameter::void_, boost::parameter::void_>, fair::mq::fs
m::RUNNING_FSM_STATE, fair::mq::fsm::READY_FSM_STATE>(fair::mq::fsm::STOP_FSM_EVENT const&, boost::msm::back::state_machine<fair::mq::fsm::Machine_, boost::parameter::void_, boost::parameter::void_, boost
::parameter::void_, boost::parameter::void_>&, fair::mq::fsm::RUNNING_FSM_STATE&, fair::mq::fsm::READY_FSM_STATE&) at FairMQStateMachine.cxx:254 [opt]
    frame #4: 0x0000000109f1b63d libFairMQ.1.3.dylib`boost::msm::back::state_machine<fair::mq::fsm::Machine_, boost::parameter::void_, boost::parameter::void_, boost::parameter::void_, boost::parameter::v
oid_>::a_row_<boost::msm::front::Row<fair::mq::fsm::RUNNING_FSM_STATE, fair::mq::fsm::STOP_FSM_EVENT, fair::mq::fsm::READY_FSM_STATE, fair::mq::fsm::Machine_::StopFct, boost::msm::front::none> >::execute(
boost::msm::back::state_machine<fair::mq::fsm::Machine_, boost::parameter::void_, boost::parameter::void_, boost::parameter::void_, boost::parameter::void_>&, int, int, fair::mq::fsm::STOP_FSM_EVENT const
&) [inlined] boost::msm::back::HandledEnum boost::msm::front::Row<fair::mq::fsm::RUNNING_FSM_STATE, fair::mq::fsm::STOP_FSM_EVENT, fair::mq::fsm::READY_FSM_STATE, fair::mq::fsm::Machine_::StopFct, boost::
msm::front::none>::action_call<fair::mq::fsm::STOP_FSM_EVENT, boost::msm::back::state_machine<fair::mq::fsm::Machine_, boost::parameter::void_, boost::parameter::void_, boost::parameter::void_, boost::par
ameter::void_>, fair::mq::fsm::RUNNING_FSM_STATE, fair::mq::fsm::READY_FSM_STATE, boost::fusion::set<fair::mq::fsm::ERROR_FSM_STATE, fair::mq::fsm::EXITING_FSM_STATE, fair::mq::fsm::OK_FSM_STATE, fair::mq
::fsm::RESETTING_DEVICE_FSM_STATE, fair::mq::fsm::RESETTING_TASK_FSM_STATE, fair::mq::fsm::PAUSED_FSM_STATE, fair::mq::fsm::RUNNING_FSM_STATE, fair::mq::fsm::READY_FSM_STATE, fair::mq::fsm::INITIALIZING_T
ASK_FSM_STATE, fair::mq::fsm::DEVICE_READY_FSM_STATE, fair::mq::fsm::INITIALIZING_DEVICE_FSM_STATE, fair::mq::fsm::IDLE_FSM_STATE> >(fsm=0x00007f9f8cd16f90, evt=<unavailable>, src=<unavailable>, tgt=<unav
ailable>, (null)=0x00007f9f8cd17167) at functor_row.hpp:108 [opt]

This is the reason why some tests randomly timeout in O2. I think this is a regression that appeared when we moved to 1.3.7.

Binding doesn't work when using 'localhost' instead of 127.0.0.1

From FairRoot created by knopers8 : FairRootGroup/FairRoot#711

When trying to open a FairMQ channel with following configuration:

{
  "fairMQOptions": {
    "devices": [
      {
        "id": "sink1",
        "channels": [
          {
            "name": "dpl-out",
            "sockets": [
              {
                "type": "sub",
                "method": "bind",
                "address": "tcp://localhost:26525",
                "sndBufSize": 10,
                "rcvBufSize": 10,
                "rateLogging": 1
              }
            ]
          }
        ]
      }
    ]
  }
}

I get plenty of:
Failed binding socket d31e96a5-61da-444a-a07a-644aeb28ca46.dpl-out[0].sub, reason: No such device
It works when using 127.0.0.1 instead of localhost. Also, it happens only for binding, connecting works nicely.

Require DDS 2.2

Adapt to API changes

Include nanomsg in multipart tests

Unit test Poller.ZeroMQ_subchannel times out on MacOS

Describe the bug
The Poller.ZeroMQ_subchannel unit test times out.

To Reproduce
Run AliceO2 CI check/o2/macos

Expected behavior
The unit test should succeed

Logs / Screenshots
log

System information (please complete the following information):

OS: MacOS
Compiler: ?
Environment: alidist ?

Reporter: @matthiasrichter

Bad configuration transitions to RUNNING before jumping back to READY

Describe the bug
When trying to transition from READY to RUNNING with a control plugin and a bad channel configuration, the device reports successfully entering RUNNING and then jumps back to READY.
The bad channel configuration to reproduce this issue is no config file, no command line parameters, but chan.foo.bar properties pushed to configuration from the plugin.

To Reproduce
FairMQ 1.2.7, 1-n-1 example, ALICE O² Control plugin

Expected behavior
Expected behavior would be staying in READY, or transitioning to ERROR, and in any case not declaring having entered RUNNING if the configuration is bad.

Logs / Screenshots

time="2018-10-29T15:52:21Z" level=info msg="[15:52:21][STATE] Entering RUNNING state" prefix=task-stdout task="fairmq-ex-1-n-1-processor#134ae150-db8c-11e8-865a-a08cfdc880fc"
time="2018-10-29T15:52:21Z" level=info msg="[15:52:21][INFO] DEVICE: Running..." prefix=task-stdout task="fairmq-ex-1-n-1-processor#134ae150-db8c-11e8-865a-a08cfdc880fc"
time="2018-10-29T15:52:21Z" level=info msg="[15:52:21][ERROR] out of range: _Map_base::at" prefix=task-stdout task="fairmq-ex-1-n-1-processor#134ae150-db8c-11e8-865a-a08cfdc880fc"
time="2018-10-29T15:52:21Z" level=info msg="[15:52:21][ERROR] incorrect/incomplete channel configuration?" prefix=task-stdout task="fairmq-ex-1-n-1-processor#134ae150-db8c-11e8-865a-a08cfdc880fc"
time="2018-10-29T15:52:21Z" level=info msg="[15:52:21][STATE] RUNNING state finished without an external event, entering READY state" prefix=task-stdout task="fairmq-ex-1-n-1-processor#134ae150-db8c-11e8-865a-a08cfdc880fc"

System information (please complete the following information):

OS: CC7
Compiler: whatever aliBuild uses, doesn't seem to matter

Do not install private header files

Remove worker thread from state machine

Add PREFIX column to cmake summary output

Distinguish 'tracked' from 'untracked' config properties

Currently, plugins can only modify config properties while the device is in INIT_DEVICE state. We need support for changing config properties with immediate effect regardless of device state.

Write a 1-n-1 (MapReduce) example by implementing the ROOT::TExecutor interface

Is your feature request related to a problem? Please describe.
A popular application of FairMQ is the 1-n-1 topology (or MapReduce) for simulation or analysis. We get many questions on how to write the user-facing frontend.

Describe the solution you'd like
Implement the ROOT::TExecutor interface, so one can execute a MapReduce workload on a 1-n-1 FairMQ topology deployed by DDS.

Example code written in e.g. a ROOT macro:

ROOT::TExecutor<fair::mq::RootDDSExecutor> pool;
auto result = pool.MapReduce([]() { return 1; }, 10,
  [](std::vector<int> v) {
    return std::accumulate(v.begin(), v.end(), 0);
  });

Describe alternatives you've considered
We already provide lower level examples (examples/1-n-1, examples/dds) and plan to improve on that level #78. This would complement the set of examples.

./fairmq/fairmq-shmmonitor -c and
ctest -V -R 'Example-1-1-shmem'.

Expected behavior
Examples should execute successfully.

Logs / Screenshots
log.txt

System information (please complete the following information):

OS: MacOS
Compiler: Apple Clang
Environment: alidist

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