From: Bartosz Golaszewski <brgl@bgdev.pl>
To: Kent Gibson <warthog618@gmail.com>,
Linus Walleij <linus.walleij@linaro.org>,
Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
Jack Winch <sunt.un.morcov@gmail.com>,
Helmut Grohne <helmut.grohne@intenta.de>
Cc: linux-gpio@vger.kernel.org, Bartosz Golaszewski <brgl@bgdev.pl>
Subject: [libgpiod][PATCH 0/4] libgpiod v2: C++ bindings
Date: Mon, 21 Jun 2021 21:18:26 +0200 [thread overview]
Message-ID: <20210621191830.10628-1-brgl@bgdev.pl> (raw)
This series contains the implementation of the C++ bindings for libgpiod v2.
In general the C++ library follows the data structure model as defined by
the C library with one notable exception: objects that represent immutable
snapshots of kernel data (line_info and edge & info events) are copyable
(or rather shared behind the scenes using ::std::shared_ptr). The rest of
the classes delete their copy constructors and assignment operators and
are only move constructible and move assignable.
All classes follow the pimpl idiom - using either shared_ptr or unique_ptr -
and all implementations are hidden from the user for easier maintenance and
less ABI breakage in the future.
The edge_event class is a bit of a special case. While it looks the same
as other copyable objects to the user, the implementation uses a tiny bit of
polymorphism (although it never crosses the ABI boundary). This is done
to make it possible to use the edge_event_buffer without any memory
allocations like what the C API enables. The edge_event objects stored
in the buffer only contain a raw pointer to the C object stored in the
underlying C edge_event_buffer. The event is copied into a fully managed
object once the copy assignment operator is called.
I'm Cc'ing people who showed interest and helped me with C++ bindings
before for review.
Bartosz Golaszewski (4):
events: hide the *_read_fd() symbols from the API header
API: drop "peek" functions
API: add an AS_IS value for bias setting
bindings: cxx: implement C++ bindings for libgpiod v2.0
Doxyfile.in | 4 +-
bindings/cxx/Makefile.am | 16 +-
bindings/cxx/chip.cpp | 213 +++--
bindings/cxx/edge-event-buffer.cpp | 103 +++
bindings/cxx/edge-event.cpp | 123 +++
bindings/cxx/examples/Makefile.am | 12 +-
bindings/cxx/examples/gpiodetectcxx.cpp | 3 +-
bindings/cxx/examples/gpiogetcxx.cpp | 12 +-
bindings/cxx/examples/gpioinfocxx.cpp | 63 +-
bindings/cxx/examples/gpiomoncxx.cpp | 38 +-
bindings/cxx/examples/gpiosetcxx.cpp | 19 +-
bindings/cxx/gpiod.hpp | 938 +-------------------
bindings/cxx/gpiodcxx/Makefile.am | 14 +
bindings/cxx/gpiodcxx/chip.hpp | 172 ++++
bindings/cxx/gpiodcxx/edge-event-buffer.hpp | 115 +++
bindings/cxx/gpiodcxx/edge-event.hpp | 124 +++
bindings/cxx/gpiodcxx/info-event.hpp | 107 +++
bindings/cxx/gpiodcxx/line-config.hpp | 242 +++++
bindings/cxx/gpiodcxx/line-info.hpp | 205 +++++
bindings/cxx/gpiodcxx/line-request.hpp | 170 ++++
bindings/cxx/gpiodcxx/misc.hpp | 49 +
bindings/cxx/gpiodcxx/request-config.hpp | 95 ++
bindings/cxx/info-event.cpp | 89 ++
bindings/cxx/internal.hpp | 168 +++-
bindings/cxx/iter.cpp | 60 --
bindings/cxx/line-config.cpp | 222 +++++
bindings/cxx/line-info.cpp | 150 ++++
bindings/cxx/line-request.cpp | 161 ++++
bindings/cxx/line.cpp | 321 -------
bindings/cxx/line_bulk.cpp | 366 --------
bindings/cxx/misc.cpp | 18 +
bindings/cxx/request-config.cpp | 80 ++
configure.ac | 1 +
include/gpiod.h | 79 +-
lib/edge-event.c | 39 +-
lib/info-event.c | 10 +-
lib/internal.h | 4 +-
lib/line-config.c | 1 +
lib/line-info.c | 24 +-
tools/gpiomon.c | 4 +-
40 files changed, 2701 insertions(+), 1933 deletions(-)
create mode 100644 bindings/cxx/edge-event-buffer.cpp
create mode 100644 bindings/cxx/edge-event.cpp
create mode 100644 bindings/cxx/gpiodcxx/Makefile.am
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/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/misc.hpp
create mode 100644 bindings/cxx/gpiodcxx/request-config.hpp
create mode 100644 bindings/cxx/info-event.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.cpp
delete mode 100644 bindings/cxx/line_bulk.cpp
create mode 100644 bindings/cxx/misc.cpp
create mode 100644 bindings/cxx/request-config.cpp
--
2.30.1
next reply other threads:[~2021-06-21 19:18 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-21 19:18 Bartosz Golaszewski [this message]
2021-06-21 19:18 ` [libgpiod][PATCH 1/4] events: hide the *_read_fd() symbols from the API header Bartosz Golaszewski
2021-06-21 19:18 ` [libgpiod][PATCH 2/4] API: drop "peek" functions Bartosz Golaszewski
2021-06-21 19:18 ` [libgpiod][PATCH 3/4] API: add an AS_IS value for bias setting Bartosz Golaszewski
2021-06-21 19:18 ` [libgpiod][PATCH 4/4] bindings: cxx: implement C++ bindings for libgpiod v2.0 Bartosz Golaszewski
2021-06-27 8:47 ` Kent Gibson
2021-06-28 11:30 ` Andy Shevchenko
2021-06-28 11:34 ` Kent Gibson
2021-06-28 11:53 ` Andy Shevchenko
2021-06-28 14:25 ` Kent Gibson
2021-07-02 8:50 ` Bartosz Golaszewski
2021-07-02 11:38 ` Kent Gibson
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