[libgpiod,v2,v6,0/5] bindings: cxx: implement C++ bindings for libgpiod v2.0

This rewrites the C++ bindings for libgpiod in order to work with v2.0
version of the C API. The C++ standard use is C++17 which is well
supported in GCC. The documentation covers the entire API so for details
please refer to it, the tests and example programs.

I suggested by Kent, I've also split the big patch into several subpatches
which are not bisectable but make the review easier.

I'm Cc'ing people who've worked on the C++ bindings over time too in
this iteration.

I didn't address all the issues Kent raised in his las review. For the
gpiomon example it's because I sent a separate patch fixing the non-blocking
behavior of the request file descriptor first.

For the potential edge_event iterator - I simply don't understand how it
would work or if it would be needed at all since the code using the buffer
and iterating over it is already quite brief.

We can sort that out once we have most of the code in master.

Bartosz Golaszewski (5):
  bindings: cxx: remove old code
  bindings: cxx: add v2 headers
  bindings: cxx: add v2 tests
  bindings: cxx: add examples
  bindings: cxx: add implementation

 Doxyfile.in                                 |   4 +-
 bindings/cxx/Makefile.am                    |  23 +-
 bindings/cxx/chip-info.cpp                  |  74 ++
 bindings/cxx/chip.cpp                       | 213 +++--
 bindings/cxx/edge-event-buffer.cpp          | 115 +++
 bindings/cxx/edge-event.cpp                 | 135 +++
 bindings/cxx/examples/Makefile.am           |  16 +-
 bindings/cxx/examples/gpiodetectcxx.cpp     |  10 +-
 bindings/cxx/examples/gpiofindcxx.cpp       |   4 +-
 bindings/cxx/examples/gpiogetcxx.cpp        |  19 +-
 bindings/cxx/examples/gpioinfocxx.cpp       |  64 +-
 bindings/cxx/examples/gpiomoncxx.cpp        |  53 +-
 bindings/cxx/examples/gpiosetcxx.cpp        |  33 +-
 bindings/cxx/exception.cpp                  | 119 +++
 bindings/cxx/gpiod.hpp                      | 944 +-------------------
 bindings/cxx/gpiodcxx/Makefile.am           |  18 +
 bindings/cxx/gpiodcxx/chip-info.hpp         | 105 +++
 bindings/cxx/gpiodcxx/chip.hpp              | 179 ++++
 bindings/cxx/gpiodcxx/edge-event-buffer.hpp | 129 +++
 bindings/cxx/gpiodcxx/edge-event.hpp        | 137 +++
 bindings/cxx/gpiodcxx/exception.hpp         | 158 ++++
 bindings/cxx/gpiodcxx/info-event.hpp        | 123 +++
 bindings/cxx/gpiodcxx/line-config.hpp       | 564 ++++++++++++
 bindings/cxx/gpiodcxx/line-info.hpp         | 176 ++++
 bindings/cxx/gpiodcxx/line-request.hpp      | 221 +++++
 bindings/cxx/gpiodcxx/line.hpp              | 274 ++++++
 bindings/cxx/gpiodcxx/misc.hpp              |  44 +
 bindings/cxx/gpiodcxx/request-config.hpp    | 163 ++++
 bindings/cxx/gpiodcxx/timestamp.hpp         | 122 +++
 bindings/cxx/info-event.cpp                 | 102 +++
 bindings/cxx/internal.cpp                   |  28 +
 bindings/cxx/internal.hpp                   | 208 ++++-
 bindings/cxx/iter.cpp                       |  60 --
 bindings/cxx/line-config.cpp                | 685 ++++++++++++++
 bindings/cxx/line-info.cpp                  | 189 ++++
 bindings/cxx/line-request.cpp               | 225 +++++
 bindings/cxx/line.cpp                       | 331 ++-----
 bindings/cxx/line_bulk.cpp                  | 366 --------
 bindings/cxx/misc.cpp                       |  20 +
 bindings/cxx/request-config.cpp             | 174 ++++
 bindings/cxx/tests/Makefile.am              |  28 +-
 bindings/cxx/tests/check-kernel.cpp         |  48 +
 bindings/cxx/tests/gpio-mockup.cpp          | 153 ----
 bindings/cxx/tests/gpio-mockup.hpp          |  94 --
 bindings/cxx/tests/gpiod-cxx-test.cpp       |  55 --
 bindings/cxx/tests/gpiosim.cpp              | 258 ++++++
 bindings/cxx/tests/gpiosim.hpp              |  69 ++
 bindings/cxx/tests/helpers.cpp              |  37 +
 bindings/cxx/tests/helpers.hpp              |  62 ++
 bindings/cxx/tests/tests-chip-info.cpp      | 109 +++
 bindings/cxx/tests/tests-chip.cpp           | 218 +++--
 bindings/cxx/tests/tests-edge-event.cpp     | 417 +++++++++
 bindings/cxx/tests/tests-event.cpp          | 280 ------
 bindings/cxx/tests/tests-info-event.cpp     | 198 ++++
 bindings/cxx/tests/tests-iter.cpp           |  21 -
 bindings/cxx/tests/tests-line-config.cpp    | 270 ++++++
 bindings/cxx/tests/tests-line-info.cpp      | 156 ++++
 bindings/cxx/tests/tests-line-request.cpp   | 490 ++++++++++
 bindings/cxx/tests/tests-line.cpp           | 494 ++--------
 bindings/cxx/tests/tests-misc.cpp           |  78 ++
 bindings/cxx/tests/tests-request-config.cpp | 155 ++++
 configure.ac                                |   1 +
 62 files changed, 7406 insertions(+), 2912 deletions(-)
 create mode 100644 bindings/cxx/chip-info.cpp
 create mode 100644 bindings/cxx/edge-event-buffer.cpp
 create mode 100644 bindings/cxx/edge-event.cpp
 create mode 100644 bindings/cxx/exception.cpp
 create mode 100644 bindings/cxx/gpiodcxx/Makefile.am
 create mode 100644 bindings/cxx/gpiodcxx/chip-info.hpp
 create mode 100644 bindings/cxx/gpiodcxx/chip.hpp
 create mode 100644 bindings/cxx/gpiodcxx/edge-event-buffer.hpp
 create mode 100644 bindings/cxx/gpiodcxx/edge-event.hpp
 create mode 100644 bindings/cxx/gpiodcxx/exception.hpp
 create mode 100644 bindings/cxx/gpiodcxx/info-event.hpp
 create mode 100644 bindings/cxx/gpiodcxx/line-config.hpp
 create mode 100644 bindings/cxx/gpiodcxx/line-info.hpp
 create mode 100644 bindings/cxx/gpiodcxx/line-request.hpp
 create mode 100644 bindings/cxx/gpiodcxx/line.hpp
 create mode 100644 bindings/cxx/gpiodcxx/misc.hpp
 create mode 100644 bindings/cxx/gpiodcxx/request-config.hpp
 create mode 100644 bindings/cxx/gpiodcxx/timestamp.hpp
 create mode 100644 bindings/cxx/info-event.cpp
 create mode 100644 bindings/cxx/internal.cpp
 delete mode 100644 bindings/cxx/iter.cpp
 create mode 100644 bindings/cxx/line-config.cpp
 create mode 100644 bindings/cxx/line-info.cpp
 create mode 100644 bindings/cxx/line-request.cpp
 delete mode 100644 bindings/cxx/line_bulk.cpp
 create mode 100644 bindings/cxx/misc.cpp
 create mode 100644 bindings/cxx/request-config.cpp
 create mode 100644 bindings/cxx/tests/check-kernel.cpp
 delete mode 100644 bindings/cxx/tests/gpio-mockup.cpp
 delete mode 100644 bindings/cxx/tests/gpio-mockup.hpp
 delete mode 100644 bindings/cxx/tests/gpiod-cxx-test.cpp
 create mode 100644 bindings/cxx/tests/gpiosim.cpp
 create mode 100644 bindings/cxx/tests/gpiosim.hpp
 create mode 100644 bindings/cxx/tests/helpers.cpp
 create mode 100644 bindings/cxx/tests/helpers.hpp
 create mode 100644 bindings/cxx/tests/tests-chip-info.cpp
 create mode 100644 bindings/cxx/tests/tests-edge-event.cpp
 delete mode 100644 bindings/cxx/tests/tests-event.cpp
 create mode 100644 bindings/cxx/tests/tests-info-event.cpp
 delete mode 100644 bindings/cxx/tests/tests-iter.cpp
 create mode 100644 bindings/cxx/tests/tests-line-config.cpp
 create mode 100644 bindings/cxx/tests/tests-line-info.cpp
 create mode 100644 bindings/cxx/tests/tests-line-request.cpp
 create mode 100644 bindings/cxx/tests/tests-misc.cpp
 create mode 100644 bindings/cxx/tests/tests-request-config.cpp