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LICENSE.agpl-3.0.md

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+### GNU AFFERO GENERAL PUBLIC LICENSE
+
+Version 3, 19 November 2007
+
+Copyright (C) 2007 Free Software Foundation, Inc.
+<https://fsf.org/>
+
+Everyone is permitted to copy and distribute verbatim copies of this
+license document, but changing it is not allowed.
+
+### Preamble
+
+The GNU Affero General Public License is a free, copyleft license for
+software and other kinds of works, specifically designed to ensure
+cooperation with the community in the case of network server software.
+
+The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works. By contrast,
+our General Public Licenses are intended to guarantee your freedom to
+share and change all versions of a program--to make sure it remains
+free software for all its users.
+
+When we speak of free software, we are referring to freedom, not
+price. Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+them if you wish), that you receive source code or can get it if you
+want it, that you can change the software or use pieces of it in new
+free programs, and that you know you can do these things.
+
+Developers that use our General Public Licenses protect your rights
+with two steps: (1) assert copyright on the software, and (2) offer
+you this License which gives you legal permission to copy, distribute
+and/or modify the software.
+
+A secondary benefit of defending all users' freedom is that
+improvements made in alternate versions of the program, if they
+receive widespread use, become available for other developers to
+incorporate. Many developers of free software are heartened and
+encouraged by the resulting cooperation. However, in the case of
+software used on network servers, this result may fail to come about.
+The GNU General Public License permits making a modified version and
+letting the public access it on a server without ever releasing its
+source code to the public.
+
+The GNU Affero General Public License is designed specifically to
+ensure that, in such cases, the modified source code becomes available
+to the community. It requires the operator of a network server to
+provide the source code of the modified version running there to the
+users of that server. Therefore, public use of a modified version, on
+a publicly accessible server, gives the public access to the source
+code of the modified version.
+
+An older license, called the Affero General Public License and
+published by Affero, was designed to accomplish similar goals. This is
+a different license, not a version of the Affero GPL, but Affero has
+released a new version of the Affero GPL which permits relicensing
+under this license.
+
+The precise terms and conditions for copying, distribution and
+modification follow.
+
+### TERMS AND CONDITIONS
+
+#### 0. Definitions.
+
+"This License" refers to version 3 of the GNU Affero General Public
+License.
+
+"Copyright" also means copyright-like laws that apply to other kinds
+of works, such as semiconductor masks.
+
+"The Program" refers to any copyrightable work licensed under this
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+A "covered work" means either the unmodified Program or a work based
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+To "propagate" a work means to do anything with it that, without
+permission, would make you directly or secondarily liable for
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+An interactive user interface displays "Appropriate Legal Notices" to
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+
+#### 1. Source Code.
+
+The "source code" for a work means the preferred form of the work for
+making modifications to it. "Object code" means any non-source form of
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+The Corresponding Source for a work in source code form is that same
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+
+#### 2. Basic Permissions.
+
+All rights granted under this License are granted for the term of
+copyright on the Program, and are irrevocable provided the stated
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+
+#### 3. Protecting Users' Legal Rights From Anti-Circumvention Law.
+
+No covered work shall be deemed part of an effective technological
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+
+#### 4. Conveying Verbatim Copies.
+
+You may convey verbatim copies of the Program's source code as you
+receive it, in any medium, provided that you conspicuously and
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+keep intact all notices stating that this License and any
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+
+You may charge any price or no price for each copy that you convey,
+and you may offer support or warranty protection for a fee.
+
+#### 5. Conveying Modified Source Versions.
+
+You may convey a work based on the Program, or the modifications to
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+
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+beyond what the individual works permit. Inclusion of a covered work
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+parts of the aggregate.
+
+#### 6. Conveying Non-Source Forms.
+
+You may convey a covered work in object code form under the terms of
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+-   a) Convey the object code in, or embodied in, a physical product
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+unpacking, reading or copying.
+
+#### 7. Additional Terms.
+
+"Additional permissions" are terms that supplement the terms of this
+License by making exceptions from one or more of its conditions.
+Additional permissions that are applicable to the entire Program shall
+be treated as though they were included in this License, to the extent
+that they are valid under applicable law. If additional permissions
+apply only to part of the Program, that part may be used separately
+under those permissions, but the entire Program remains governed by
+this License without regard to the additional permissions.
+
+When you convey a copy of a covered work, you may at your option
+remove any additional permissions from that copy, or from any part of
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+
+Additional terms, permissive or non-permissive, may be stated in the
+form of a separately written license, or stated as exceptions; the
+above requirements apply either way.
+
+#### 8. Termination.
+
+You may not propagate or modify a covered work except as expressly
+provided under this License. Any attempt otherwise to propagate or
+modify it is void, and will automatically terminate your rights under
+this License (including any patent licenses granted under the third
+paragraph of section 11).
+
+However, if you cease all violation of this License, then your license
+from a particular copyright holder is reinstated (a) provisionally,
+unless and until the copyright holder explicitly and finally
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+fails to notify you of the violation by some reasonable means prior to
+60 days after the cessation.
+
+Moreover, your license from a particular copyright holder is
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+
+Termination of your rights under this section does not terminate the
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+material under section 10.
+
+#### 9. Acceptance Not Required for Having Copies.
+
+You are not required to accept this License in order to receive or run
+a copy of the Program. Ancillary propagation of a covered work
+occurring solely as a consequence of using peer-to-peer transmission
+to receive a copy likewise does not require acceptance. However,
+nothing other than this License grants you permission to propagate or
+modify any covered work. These actions infringe copyright if you do
+not accept this License. Therefore, by modifying or propagating a
+covered work, you indicate your acceptance of this License to do so.
+
+#### 10. Automatic Licensing of Downstream Recipients.
+
+Each time you convey a covered work, the recipient automatically
+receives a license from the original licensors, to run, modify and
+propagate that work, subject to this License. You are not responsible
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+
+An "entity transaction" is a transaction transferring control of an
+organization, or substantially all assets of one, or subdividing an
+organization, or merging organizations. If propagation of a covered
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+
+You may not impose any further restrictions on the exercise of the
+rights granted or affirmed under this License. For example, you may
+not impose a license fee, royalty, or other charge for exercise of
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+(including a cross-claim or counterclaim in a lawsuit) alleging that
+any patent claim is infringed by making, using, selling, offering for
+sale, or importing the Program or any portion of it.
+
+#### 11. Patents.
+
+A "contributor" is a copyright holder who authorizes use under this
+License of the Program or a work on which the Program is based. The
+work thus licensed is called the contributor's "contributor version".
+
+A contributor's "essential patent claims" are all patent claims owned
+or controlled by the contributor, whether already acquired or
+hereafter acquired, that would be infringed by some manner, permitted
+by this License, of making, using, or selling its contributor version,
+but do not include claims that would be infringed only as a
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+
+Each contributor grants you a non-exclusive, worldwide, royalty-free
+patent license under the contributor's essential patent claims, to
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+propagate the contents of its contributor version.
+
+In the following three paragraphs, a "patent license" is any express
+agreement or commitment, however denominated, not to enforce a patent
+(such as an express permission to practice a patent or covenant not to
+sue for patent infringement). To "grant" such a patent license to a
+party means to make such an agreement or commitment not to enforce a
+patent against the party.
+
+If you convey a covered work, knowingly relying on a patent license,
+and the Corresponding Source of the work is not available for anyone
+to copy, free of charge and under the terms of this License, through a
+publicly available network server or other readily accessible means,
+then you must either (1) cause the Corresponding Source to be so
+available, or (2) arrange to deprive yourself of the benefit of the
+patent license for this particular work, or (3) arrange, in a manner
+consistent with the requirements of this License, to extend the patent
+license to downstream recipients. "Knowingly relying" means you have
+actual knowledge that, but for the patent license, your conveying the
+covered work in a country, or your recipient's use of the covered work
+in a country, would infringe one or more identifiable patents in that
+country that you have reason to believe are valid.
+
+If, pursuant to or in connection with a single transaction or
+arrangement, you convey, or propagate by procuring conveyance of, a
+covered work, and grant a patent license to some of the parties
+receiving the covered work authorizing them to use, propagate, modify
+or convey a specific copy of the covered work, then the patent license
+you grant is automatically extended to all recipients of the covered
+work and works based on it.
+
+A patent license is "discriminatory" if it does not include within the
+scope of its coverage, prohibits the exercise of, or is conditioned on
+the non-exercise of one or more of the rights that are specifically
+granted under this License. You may not convey a covered work if you
+are a party to an arrangement with a third party that is in the
+business of distributing software, under which you make payment to the
+third party based on the extent of your activity of conveying the
+work, and under which the third party grants, to any of the parties
+who would receive the covered work from you, a discriminatory patent
+license (a) in connection with copies of the covered work conveyed by
+you (or copies made from those copies), or (b) primarily for and in
+connection with specific products or compilations that contain the
+covered work, unless you entered into that arrangement, or that patent
+license was granted, prior to 28 March 2007.
+
+Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+#### 12. No Surrender of Others' Freedom.
+
+If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License. If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under
+this License and any other pertinent obligations, then as a
+consequence you may not convey it at all. For example, if you agree to
+terms that obligate you to collect a royalty for further conveying
+from those to whom you convey the Program, the only way you could
+satisfy both those terms and this License would be to refrain entirely
+from conveying the Program.
+
+#### 13. Remote Network Interaction; Use with the GNU General Public License.
+
+Notwithstanding any other provision of this License, if you modify the
+Program, your modified version must prominently offer all users
+interacting with it remotely through a computer network (if your
+version supports such interaction) an opportunity to receive the
+Corresponding Source of your version by providing access to the
+Corresponding Source from a network server at no charge, through some
+standard or customary means of facilitating copying of software. This
+Corresponding Source shall include the Corresponding Source for any
+work covered by version 3 of the GNU General Public License that is
+incorporated pursuant to the following paragraph.
+
+Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU General Public License into a single
+combined work, and to convey the resulting work. The terms of this
+License will continue to apply to the part which is the covered work,
+but the work with which it is combined will remain governed by version
+3 of the GNU General Public License.
+
+#### 14. Revised Versions of this License.
+
+The Free Software Foundation may publish revised and/or new versions
+of the GNU Affero General Public License from time to time. Such new
+versions will be similar in spirit to the present version, but may
+differ in detail to address new problems or concerns.
+
+Each version is given a distinguishing version number. If the Program
+specifies that a certain numbered version of the GNU Affero General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation. If the Program does not specify a version number of the
+GNU Affero General Public License, you may choose any version ever
+published by the Free Software Foundation.
+
+If the Program specifies that a proxy can decide which future versions
+of the GNU Affero General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+Later license versions may give you additional or different
+permissions. However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+#### 15. Disclaimer of Warranty.
+
+THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT
+WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND
+PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE
+DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR
+CORRECTION.
+
+#### 16. Limitation of Liability.
+
+IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR
+CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
+INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES
+ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT
+NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR
+LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM
+TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER
+PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+
+#### 17. Interpretation of Sections 15 and 16.
+
+If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+END OF TERMS AND CONDITIONS
+
+### How to Apply These Terms to Your New Programs
+
+If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these
+terms.
+
+To do so, attach the following notices to the program. It is safest to
+attach them to the start of each source file to most effectively state
+the exclusion of warranty; and each file should have at least the
+"copyright" line and a pointer to where the full notice is found.
+
+        <one line to give the program's name and a brief idea of what it does.>
+        Copyright (C) <year>  <name of author>
+
+        This program is free software: you can redistribute it and/or modify
+        it under the terms of the GNU Affero General Public License as
+        published by the Free Software Foundation, either version 3 of the
+        License, or (at your option) any later version.
+
+        This program is distributed in the hope that it will be useful,
+        but WITHOUT ANY WARRANTY; without even the implied warranty of
+        MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+        GNU Affero General Public License for more details.
+
+        You should have received a copy of the GNU Affero General Public License
+        along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper
+mail.
+
+If your software can interact with users remotely through a computer
+network, you should also make sure that it provides a way for users to
+get its source. For example, if your program is a web application, its
+interface could display a "Source" link that leads users to an archive
+of the code. There are many ways you could offer source, and different
+solutions will be better for different programs; see section 13 for
+the specific requirements.
+
+You should also get your employer (if you work as a programmer) or
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary. For more information on this, and how to apply and follow
+the GNU AGPL, see <https://www.gnu.org/licenses/>.

meson.build

@@ -0,0 +1,22 @@
+project('RadAngel', 'cpp', default_options : ['cpp_std=c++17'], license : ['AGPL3','GPL3'], version : '0.1')
+
+thread_dep = dependency('threads')
+
+udev_dir = get_option('udev-dir')
+install_udev_dir = (udev_dir != 'no')
+
+if install_udev_dir and udev_dir == ''
+  udev_dir = dependency('udev').get_pkgconfig_variable('udevdir')
+endif
+
+systemd_unit_dir = get_option('systemd-unit-dir')
+install_systemd_unit_dir = (systemd_unit_dir != 'no')
+
+if install_systemd_unit_dir and systemd_unit_dir == ''
+  systemd_unit_dir = dependency('systemd').get_pkgconfig_variable('systemdsystemunitdir')
+endif
+
+subdir('radangeld')
+#subdir('radangel-webmon')
+#subdir('src')
+

meson_options.txt

@@ -0,0 +1,2 @@
+option('udev-dir', type: 'string', value: '', description: 'Absolute path of the udev base directory. Set to \'no\' not to install the udev rule')
+option('systemd-unit-dir', type: 'string', value: '', description: 'systemd service directory')

radangeld/main.cpp

@@ -0,0 +1,676 @@
+/*
+radangeld -- a linux daemon to readout and distribute data measured by a Kromek 
+RadAngel γ-spectrometer
+Copyright (C) 2019 Matthias Janke <matthias.janke@physi.uni-heidelberg.de>
+
+This program is free software: you can redistribute it and/or modify it under 
+the terms of the GNU Affero General Public License as published by the Free 
+Software Foundation, version 3.
+
+This program is distributed in the hope that it will be useful, but WITHOUT ANY 
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A 
+PARTICULAR PURPOSE. See the GNU Affero General Public License for more details.
+
+You should have received a copy of the GNU Affero General Public License along 
+with this program. If not, see <https://www.gnu.org/licenses/>
+*/
+// SPDX-License-Identifier: AGPL-3.0-only
+
+
+#include <iostream>
+#include <fstream>
+#include <chrono>
+#include <array>
+#include <limits>
+#include <thread>
+#include <atomic>
+#include <csignal>
+
+#include <wchar.h>
+
+// generate timestamps that are identifiable
+#include "date/tz.h"
+
+// program option parser
+#include <boost/program_options.hpp>
+
+// HID device access helper library
+#include <hidapi.h>
+
+// configuration file library
+#include <libconfig.h++>
+
+// thread/ipc/tcp communications
+#include <zmqpp/zmqpp.hpp>
+
+// systemd new-style daemon library
+#include <systemd/sd-daemon.h>
+
+namespace po = boost::program_options;
+
+namespace
+{
+  volatile std::sig_atomic_t terminate{0};
+}
+ 
+void signal_handler(int signal)
+{
+    if(signal==SIGTERM)
+        terminate = 1;
+}
+
+struct measurement_properties
+{
+	bool eventswrite{true};
+	bool reportswrite{false};
+	bool demonize{false};
+
+	int eventswritten{0};
+	int reportswritten{0};
+
+	std::chrono::seconds maxduration{30};
+	unsigned int readreports{0};
+
+	std::string fileprefix{"radangel"};
+	std::string serial{""};
+	hid_device *handle;
+
+	std::chrono::time_point<std::chrono::system_clock> starttime;
+	std::chrono::time_point<std::chrono::system_clock> endtime;
+
+	std::chrono::time_point<std::chrono::steady_clock> startmeastime;
+};
+
+std::string ws2mbs (const wchar_t *ws)
+{
+	std::mbstate_t state = std::mbstate_t();
+	const int len = 1 + std::wcsrtombs (nullptr, &ws, 0, &state);
+	std::vector<char> mbs (len);
+	std::wcsrtombs (&mbs[0], &ws, mbs.size(), &state);
+	return std::string (mbs.data(), mbs.size() );
+}
+
+int writeprotocol (const std::string &filename, measurement_properties &mp)
+{
+	const int MAX_STR = 255;
+
+	int res;
+
+	wchar_t wstr[MAX_STR];
+
+	libconfig::Config cfg;
+
+	libconfig::Setting &root = cfg.getRoot();
+
+	libconfig::Setting &measurement = root.add ("Measurement", libconfig::Setting::TypeGroup);
+
+	measurement.add ("StartTime", libconfig::Setting::TypeString) = date::format ("%F %T ", date::make_zoned (date::current_zone(), mp.starttime) ) + date::current_zone()->name();
+	measurement.add ("EndTime", libconfig::Setting::TypeString) = date::format ("%F %T ", date::make_zoned (date::current_zone(), mp.endtime) ) + date::current_zone()->name();
+	measurement.add ("RunAsDaemon", libconfig::Setting::TypeBoolean) = mp.demonize;
+	measurement.add ("MaxIntegrationTime_s", libconfig::Setting::TypeInt) = static_cast<int> (mp.maxduration.count() );
+	measurement.add ("SavedFilePrefix", libconfig::Setting::TypeString) = mp.fileprefix;
+	measurement.add ("CountedReports", libconfig::Setting::TypeInt) = static_cast<int> (mp.readreports);
+
+	libconfig::Setting &detector = measurement.add ("Detector", libconfig::Setting::TypeGroup);
+	libconfig::Setting &usb = detector.add ("USB", libconfig::Setting::TypeGroup);
+	// Read the Manufacturer String
+	wstr[0] = 0x0000;
+	res = hid_get_manufacturer_string (mp.handle, wstr, MAX_STR);
+
+	if (res == 0)
+		usb.add ("Manufacturer", libconfig::Setting::TypeString) = ws2mbs (wstr);
+
+	// Read the Product String
+	wstr[0] = 0x0000;
+	res = hid_get_product_string (mp.handle, wstr, MAX_STR);
+
+	if (res == 0)
+		usb.add ("Product", libconfig::Setting::TypeString) = ws2mbs (wstr);
+
+	// Read the Serial Number String
+	wstr[0] = 0x0000;
+	res = hid_get_serial_number_string (mp.handle, wstr, MAX_STR);
+
+	if (res == 0)
+		usb.add ("Serial", libconfig::Setting::TypeString) = ws2mbs (wstr);
+
+	libconfig::Setting &manual = detector.add ("Manual", libconfig::Setting::TypeGroup);
+	manual.add ("Serial", libconfig::Setting::TypeString) = mp.serial;
+
+	libconfig::Setting &clock = measurement.add ("Clock", libconfig::Setting::TypeGroup);
+	clock.add ("Steady", libconfig::Setting::TypeBoolean) = std::chrono::steady_clock::is_steady;
+	std::chrono::steady_clock::duration unit (1);
+	clock.add ("Granularity_ns", libconfig::Setting::TypeInt64) = std::chrono::nanoseconds (unit).count() ;
+
+	std::array<std::chrono::time_point<std::chrono::steady_clock>, 1000000> vec;
+
+	for (auto &elem : vec)
+		elem = std::chrono::steady_clock::now();
+
+	std::vector<std::chrono::nanoseconds> differences (vec.size() - 1);
+
+	for (auto i = 0u; i < differences.size(); i++)
+		differences[i] = vec[i + 1] - vec[i];
+
+	auto result = std::min_element (std::begin (differences), std::end (differences) );
+
+	clock.add ("MaximumAccuracy_ns", libconfig::Setting::TypeInt64) = result->count();
+
+	libconfig::Setting &files = measurement.add ("Files", libconfig::Setting::TypeGroup);
+
+	libconfig::Setting &data = files.add ("Events", libconfig::Setting::TypeList);
+	data.add (libconfig::Setting::TypeBoolean) = mp.eventswrite;
+	data.add (libconfig::Setting::TypeInt) = mp.eventswritten;
+
+	libconfig::Setting &report = files.add ("Reports", libconfig::Setting::TypeList);
+	report.add (libconfig::Setting::TypeBoolean) = mp.reportswrite;
+	report.add (libconfig::Setting::TypeInt) = mp.reportswritten;
+
+	cfg.writeFile ( (filename + "-protocol.conf").c_str() );
+
+	return 0;
+}
+
+void read_hid_reports (measurement_properties &mp, zmqpp::context &zmqc)
+{
+	int ret = 0 ;
+	// buffer to transfer data via HID IN-descriptor
+	std::array<uint8_t, 63> reportdata{0};// maximum report length specified by RadAngel HID descriptor report 4
+
+	zmqpp::socket reportsocket (zmqc, mp.reportswrite ? zmqpp::socket_type::publish : zmqpp::socket_type::pair);
+	reportsocket.bind ("inproc://rawreports");
+	zmqpp::message report;
+
+	if (mp.demonize)
+		sd_notifyf(0, "READY=1\nSTATUS=Processing events…\nMAINPID=%lu", (unsigned long) getpid());
+                 
+	mp.starttime = std::chrono::system_clock::now();
+	mp.startmeastime = std::chrono::steady_clock::now();
+
+	do
+	{
+		do
+		{
+			ret = hid_read (mp.handle, reportdata.data(), reportdata.size() );
+
+			if (ret == 0)
+				std::this_thread::sleep_for (std::chrono::microseconds (500) );
+			else if (ret > 0)
+				break;
+			else
+				std::cerr <<  "Unable to read() HID reports!\n";
+		}
+		while (ret == 0);
+
+		if (reportdata[0] > 0)
+		{
+			report << "report"
+			       << std::chrono::time_point_cast<std::chrono::microseconds> (std::chrono::steady_clock::now() ).time_since_epoch().count()
+			       << ret;
+
+			for (const auto &element : reportdata)
+				report << element;
+
+			reportsocket.send (report);
+
+			mp.readreports++;
+		}
+	}
+	while ( (ret >= 0) && (mp.demonize || ( (std::chrono::steady_clock::now() - mp.startmeastime) < mp.maxduration) ) && !terminate );
+
+	mp.endtime = std::chrono::system_clock::now();
+
+	report << "done";
+	reportsocket.send (report);
+	
+	if(mp.demonize)
+	    sd_notify(0, "STOPPING=1");
+}
+
+void save_hid_reports (measurement_properties &mp, zmqpp::context &zmqc)
+{
+	mp.reportswritten = 0;
+
+	if (mp.reportswrite)
+	{
+		int64_t time = 0;
+		int validbytes = 0 ;
+
+		std::string reporttype;
+
+		// buffer to transfer data via HID IN-descriptor
+		std::array<uint8_t, 63> reportdata{0};// maximum report length specified by RadAngel HID descriptor report 4
+
+		zmqpp::socket reportsocket (zmqc, zmqpp::socket_type::subscribe);
+		reportsocket.connect ("inproc://rawreports");
+		reportsocket.subscribe ("");
+		zmqpp::message reports;
+
+		std::ofstream reportsfile;
+
+		do
+		{
+			reportsocket.receive (reports);
+
+			reports >> reporttype;
+
+			if (reporttype == "report")
+			{
+				if (!reportsfile.is_open())
+				{
+					reportsfile.open (mp.fileprefix + date::format ("-%F-%T-%Z", date::make_zoned (date::current_zone(), mp.starttime) ) + "-reports.csv", std::ios::app);
+
+					reportsfile << "\"relative time since start [µs]\",\"number of valid report bytes\"";
+
+					for (auto i = 0u; i < 63; i++)
+						reportsfile << ",\"report byte " << i << "\"";
+
+					reportsfile << "\n";
+				}
+
+				reports >> time
+				        >> validbytes;
+
+				for (auto &element : reportdata)
+					reports >> element;
+
+				reportsfile << std::chrono::duration_cast<std::chrono::microseconds> (std::chrono::steady_clock::time_point{std::chrono::microseconds{time}} - mp.startmeastime).count() << ","
+				            << validbytes;
+
+				for (auto &element : reportdata)
+					reportsfile << "," << static_cast<int> (element);
+
+				reportsfile << "\n";
+
+				mp.reportswritten++;
+			}
+			else if (reporttype == "done")
+				break;
+			else
+			{
+				std::cerr << "reporttype \"" << reporttype << "\" unknown" << std::endl;
+				break;
+			}
+		}
+		while (true);
+
+		if (reportsfile.is_open())
+		{
+			reportsfile.flush();
+			reportsfile.close();
+		}
+	}
+}
+
+void decode_hid_reports (measurement_properties &mp, zmqpp::context &zmqc)
+{
+	auto init = true;
+	auto reportcounter = 0u;
+
+	uint8_t validevents = 0;
+	uint8_t invalidevents = 0;
+	int64_t time;
+
+	int validbytes;
+
+	std::string reporttype;
+
+	// buffer to transfer data via HID IN-descriptor
+	std::array<uint8_t, 63> reportdata{0};// maximum report length specified by RadAngel HID descriptor report 4
+
+	std::array<std::pair<uint16_t, uint8_t>, 31> currentevents;
+	std::array<std::array<std::pair<uint16_t, uint8_t>, 31>, 2> oldevents{{{std::make_pair (0, 0) }}};
+
+	zmqpp::socket reportsocket (zmqc, mp.reportswrite ? zmqpp::socket_type::subscribe : zmqpp::socket_type::pair);
+	reportsocket.connect ("inproc://rawreports");
+
+	if (mp.reportswrite)
+		reportsocket.subscribe ("");
+
+	zmqpp::message reports;
+
+	zmqpp::socket eventssocket (zmqc, zmqpp::socket_type::publish);
+	eventssocket.bind ("inproc://events");
+	zmqpp::message events;
+
+	do
+	{
+		reportsocket.receive (reports);
+
+		reports >> reporttype;
+
+		if (reporttype == "report")
+		{
+			reports >> time
+			        >> validbytes;
+
+			for (auto &element : reportdata)
+				reports >> element;
+
+			if (reportdata[0] == 4)
+			{
+				if (validbytes == 63)
+				{
+					for (auto i = 0u; i < currentevents.size(); i++)
+						currentevents[i] = std::make_pair ( ( (reportdata[2 * i + 1] << 8) | reportdata[2 * i + 2]) >> 4, 0x0f & reportdata[2 * i + 2]);
+
+					validevents = 0;
+					invalidevents = 0;
+
+					for (auto i = 0u; i < currentevents.size(); i++)
+						if (currentevents[i] != oldevents[reportcounter % 2][i])
+						{
+							oldevents[reportcounter % 2][i] = currentevents[i];
+
+							if (currentevents[i].second != 0)
+								validevents++;
+							else
+								invalidevents++;
+						}
+						else
+						{
+							oldevents[reportcounter % 2][i] = currentevents[i];
+							currentevents[i].second = 0;
+						}
+
+					if (!init)
+					{
+						events << "events"
+						       << std::chrono::duration_cast<std::chrono::microseconds> (std::chrono::steady_clock::time_point{std::chrono::microseconds{time}} - mp.startmeastime).count()
+						       << invalidevents
+						       << validevents;
+
+						for (const auto &element : currentevents)
+							if (element.second != 0)
+								events << element.first;
+
+						eventssocket.send (events);
+					}
+
+					reportcounter++;
+
+					if (init && (reportcounter == 2) )
+						init = false;
+				}
+				else
+					std::cerr << "invalid reportsize! received: " << validbytes << " expected: 63\n";
+			}
+		}
+		else if (reporttype == "done")
+			break;
+		else
+		{
+			std::cerr << "reporttype \"" << reporttype << "\" unknown" << std::endl;
+			break;
+		}
+	}
+	while (true);
+
+	events << "done";
+	eventssocket.send (events);
+}
+
+void save_events (measurement_properties &mp, zmqpp::context &zmqc)
+{
+	mp.eventswritten = 0;
+
+	if (mp.eventswrite)
+	{
+		uint8_t validevents;
+		uint8_t invalidevents;
+
+		int64_t timestamp;
+
+		std::string eventtype;
+
+		std::array<uint16_t, 31> currentevents{0};
+
+		zmqpp::socket eventssocket (zmqc, zmqpp::socket_type::subscribe);
+		eventssocket.connect ("inproc://events");
+		eventssocket.subscribe ("");
+		zmqpp::message events;
+
+		std::ofstream eventfile;
+
+		do
+		{
+			eventssocket.receive (events);
+
+			events >> eventtype;
+
+			if (eventtype == "events")
+			{
+				if (!eventfile.is_open())
+				{
+					eventfile.open (mp.fileprefix + date::format ("-%F-%T-%Z", date::make_zoned (date::current_zone(), mp.starttime) ) + "-events.csv", std::ios::app);
+
+					eventfile << "\"relative time since start [µs]\",\"number of invalid events\",\"number of valid events\"";
+
+					for (auto i = 0u; i < 31; i++)
+						eventfile << ",\"event " << i << "\"";
+
+					eventfile << "\n";
+				}
+
+				events >> timestamp
+				       >> invalidevents
+				       >> validevents;
+
+				for (auto i = 0u; i < validevents; i++)
+					events >> currentevents[i];
+
+				eventfile << timestamp << ","
+				          << static_cast<int> (invalidevents) << ","
+				          << static_cast<int> (validevents);
+
+				for (auto i = 0u; i < validevents; i++)
+					eventfile << "," << static_cast<int> (currentevents[i]);
+
+				eventfile << "\n";
+
+				mp.eventswritten++;
+			}
+			else if (eventtype == "done")
+				break;
+			else
+			{
+				std::cerr << "save_events: eventtype \"" << eventtype << "\" unknown" << std::endl;
+				break;
+			}
+		}
+		while (true);
+
+		if (eventfile.is_open() )
+		{
+			eventfile.flush();
+			eventfile.close();
+		}
+	}
+}
+
+void publish_events (zmqpp::context &zmqc)
+{
+	uint8_t validevents;
+	uint8_t invalidevents;
+
+	uint16_t currentevent;
+
+	int64_t timestamp;
+
+	std::string eventtype;
+
+	zmqpp::socket eventssocket (zmqc, zmqpp::socket_type::subscribe);
+	eventssocket.connect ("inproc://events");
+	eventssocket.subscribe ("");
+	zmqpp::message events;
+
+	zmqpp::socket eventpublisher (zmqc, zmqpp::socket_type::publish);
+	eventpublisher.bind ("ipc://radangel.events");
+	zmqpp::message published_events;
+
+	do
+	{
+		eventssocket.receive (events);
+
+		events >> eventtype;
+
+		if (eventtype == "events")
+		{
+			events >> timestamp
+			       >> invalidevents
+			       >> validevents;
+
+			for (auto i = 0u; i < validevents; i++)
+			{
+				events >> currentevent;
+
+				published_events << currentevent
+				                 << timestamp;
+
+				eventpublisher.send (published_events);
+			}
+		}
+		else if (eventtype == "done")
+			break;
+		else
+		{
+			std::cerr << "eventtype \"" << eventtype << "\" unknown" << std::endl;
+			break;
+		}
+	}
+	while (true);
+}
+
+void publish_cpm (zmqpp::context &zmqc)
+{
+	uint8_t validevents;
+	uint8_t invalidevents;
+
+	int64_t timestamp;
+	int64_t oldtimestamp = 0;
+
+	std::string eventtype;
+
+	zmqpp::socket eventssocket (zmqc, zmqpp::socket_type::subscribe);
+	eventssocket.connect ("inproc://events");
+	eventssocket.subscribe ("");
+	zmqpp::message events;
+
+	zmqpp::socket cpmsocket (zmqc, zmqpp::socket_type::publish);
+	cpmsocket.bind ("ipc://radangel.cpm");
+	zmqpp::message cpm;
+
+	do
+	{
+		eventssocket.receive (events);
+
+		events >> eventtype;
+
+		if (eventtype == "events")
+		{
+			events  >> timestamp
+			        >> invalidevents
+			        >> validevents;
+
+			if (validevents > 0)
+			{
+				cpm << timestamp
+				    << static_cast<double> (validevents / (timestamp - oldtimestamp) * 1000 * 60);
+
+				cpmsocket.send (cpm);
+
+				oldtimestamp = timestamp;
+			}
+		}
+		else if (eventtype == "done")
+			break;
+		else
+		{
+			std::cerr << "eventtype \"" << eventtype << "\" unknown" << std::endl;
+			break;
+		}
+	}
+	while (true);
+}
+
+int main (int argc, char *argv[])
+{
+	zmqpp::context zmqc;
+
+	measurement_properties mp;
+
+	unsigned int integration_time;
+
+	po::options_description desc ("Available options:");
+	desc.add_options()
+	("help,?", "Prints this list of available options.")
+	("events,e", po::value<bool> (&mp.eventswrite)->implicit_value (true)->default_value (true), "Save events data to disk. File postfix is -data.csv.")
+	("reports,r", po::value<bool> (&mp.reportswrite)->implicit_value (true)->default_value (false), "Save received raw usb hid reports to disk. File postfix is -reports.csv.")
+	("integrate,i", po::value<unsigned int> (&integration_time)->default_value (30), "Maximum duration of a measurement in seconds.")
+	("daemon,d", po::value<bool> (&mp.demonize)->implicit_value (true)->default_value (false), "Run endless as daemon.")
+	("prefix,p", po::value<std::string> (&mp.fileprefix)->default_value ("radangel"), "Prefix for the files generated.")
+	("serial,s", po::value<std::string> (&mp.serial), "Serial number of detector.")
+	;
+
+	po::positional_options_description p;
+	p.add ("prefix", -1);
+
+	po::variables_map vm;
+	po::store (po::command_line_parser (argc, argv).options (desc).positional (p).run(), vm);
+	po::notify (vm);
+
+	if (vm.count ("help") )
+	{
+		std::cout << "Usage: " << argv[0] << " [options] [prefix]\n";
+		std::cout << desc;
+		return 0;
+	}
+
+	mp.maxduration = std::chrono::seconds{integration_time};
+
+	if (vm.count ("daemon") && !vm["daemon"].defaulted() && vm["integrate"].defaulted() )
+		mp.maxduration = std::numeric_limits<std::chrono::seconds>::max();
+
+	if (hid_init() )
+		return 1;
+
+	mp.handle = hid_open (0x4d8, 0x100, NULL);
+
+	if (!mp.handle)
+	{
+		std::cerr << "unable to open device\n";
+		return 4;
+	}
+
+	// Set the hid_read() function to be non-blocking.
+	hid_set_nonblocking (mp.handle, 1);
+
+	std::signal (SIGTERM, signal_handler);
+
+	if(!terminate)
+	{
+		std::thread publishCPM (publish_cpm, std::ref (zmqc) );
+		std::thread publishEvents (publish_events, std::ref (zmqc) );
+		std::thread saveEvents (save_events, std::ref (mp), std::ref (zmqc) );
+		std::thread decodeReports (decode_hid_reports, std::ref (mp), std::ref (zmqc) );
+		std::thread saveHIDReports (save_hid_reports, std::ref (mp), std::ref (zmqc) );
+		std::thread readHIDReports (read_hid_reports, std::ref (mp), std::ref (zmqc) );
+
+		publishCPM.join();
+		publishEvents.join();
+		saveEvents.join();
+		decodeReports.join();
+		saveHIDReports.join();
+		readHIDReports.join();
+
+		// write measurement protocol
+		writeprotocol (mp.fileprefix + date::format ("-%F-%T-%Z", date::make_zoned (date::current_zone(), mp.starttime) ), mp);
+	}
+
+	hid_close (mp.handle);
+
+	// Free static HIDAPI objects.
+	hid_exit();
+
+	return 0;
+}

radangeld/meson.build

@@ -0,0 +1,10 @@
+subdir('resources')
+
+tz_dep = dependency('tz', fallback : ['hinnant-date', 'tz_dep'], default_options : ['use_system_tzdb=true'])
+hidapi_usb_dep = dependency('hidapi-libusb')
+boost_dep = dependency('boost', modules : 'program_options')
+libconfigpp_dep = dependency('libconfig++')
+zmqpp_dep = dependency('libzmqpp')
+libsystemd_dep = dependency('libsystemd')
+
+executable('radangeld', 'main.cpp', dependencies : [hidapi_usb_dep, boost_dep, libconfigpp_dep, libsystemd_dep, thread_dep, zmqpp_dep, tz_dep])

radangeld/resources/69-kromek-radangel.rules

@@ -0,0 +1,3 @@
+# Kromek Radangel & RA4S rules
+SUBSYSTEM=="usb", ACTION=="add", ATTR{ID_VENDOR_ID}=="04d8", ATTR{ID_MODEL_ID}=="0100", ATTR{ID_VENDOR}=="Kromek", ATTR{ID_MODEL}=="LCS", GROUP="input", TAG+="uaccess"
+

radangeld/resources/meson.build

@@ -0,0 +1,15 @@
+if install_udev_dir
+  data = files( '69-kromek-radangel.rules' )
+
+  install_data(data, install_dir: join_paths(udev_dir, 'rules.d'))
+endif
+
+bindir_conf = configuration_data()
+bindir_conf.set('bindir', join_paths (get_option ('prefix'), get_option ('bindir')))
+
+if install_systemd_unit_dir
+configure_file(input: 'radangeld.service.in',
+               output: 'radangeld.service',
+               configuration: bindir_conf,
+               install_dir: systemd_unit_dir)
+endif

radangeld/resources/radangeld.service.in

@@ -0,0 +1,9 @@
+[Unit]
+Description=Daemon that reads, decodes and distributes events from a Kromek Radangel γ-spectrometer 
+
+[Service]
+Type=notify
+ExecStart=@bindir@/radangeld -e 0 -d
+
+[Install]
+WantedBy=multi-user.target

subprojects/hinnant-date.wrap

@@ -0,0 +1,9 @@
+[wrap-file]
+source_url=https://github.com/HowardHinnant/date/archive/v2.4.1.tar.gz
+source_filename=date-2.4.1.tar.gz
+source_hash=98907d243397483bd7ad889bf6c66746db0d7d2a39cc9aacc041834c40b65b98
+directory=date-2.4.1
+
+patch_url = https://wrapdb.mesonbuild.com/v1/projects/hinnant-date/2.4.1/1/get_zip
+patch_filename = hinnant-date-2.4.1-1-wrap.zip
+patch_hash = 2061673a6f8e6d63c3a40df4da58fa2b3de2835fd9b3e74649e8279599f3a8f6