Daemon C++ — code complet commenté

Cette page contient le code complet actuel de nodes/agent, avec une explication courte avant chaque fichier pour faciliter la lecture et le debug.

Périmètre couvert

• Build et packaging: CMakeLists.txt, packaging/
• Headers: include/*.hpp
• Implémentations: src/*.cpp
• Config d'exemple installée: packaging/config/node.json

nodes/agent/CMakeLists.txt

Ce fichier définit la compilation C++17, les dépendances (jansson/sqlite/gpiod/mosquitto/grpc), la cible leukos-node, et le packaging DEB/systemd.

cmake_minimum_required(VERSION 3.16)
project(leukos-node VERSION 1.0.0 LANGUAGES CXX)

option(LEUKOS_AGENT_ENABLE_SYSTEMD_PACKAGING "Install systemd unit and CPack metadata" ON)

set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_CXX_EXTENSIONS OFF)

if(NOT CMAKE_BUILD_TYPE)
    set(CMAKE_BUILD_TYPE Release)
endif()

find_package(PkgConfig REQUIRED)
pkg_check_modules(JANSSON  REQUIRED IMPORTED_TARGET jansson)
pkg_check_modules(SQLITE3  REQUIRED IMPORTED_TARGET sqlite3)
pkg_check_modules(GPIOD    REQUIRED IMPORTED_TARGET libgpiod)

if(GPIOD_VERSION VERSION_GREATER_EQUAL "2")
    add_compile_definitions(LEUKOS_GPIOD_V2=1)
endif()

# libmosquitto ships a plain .pc as "libmosquitto"
pkg_check_modules(MOSQUITTO REQUIRED IMPORTED_TARGET libmosquitto)

# gRPC C++ (generic/codec-less service, JSON payloads). Buildroot's grpc package
# installs pkg-config files; fall back to the CMake config package otherwise.
pkg_check_modules(GRPCPP IMPORTED_TARGET grpc++)
if(NOT GRPCPP_FOUND)
    find_package(gRPC CONFIG REQUIRED)
endif()

find_package(Threads REQUIRED)

add_executable(leukos-node
    src/main.cpp
    src/config.cpp
    src/local_db.cpp
    src/gpio_manager.cpp
    src/relay_manager.cpp
    src/valve_manager.cpp
    src/meter_manager.cpp
    src/scheduler.cpp
    src/watchdog.cpp
    src/mqtt_client.cpp
    src/device_bridge.cpp
    src/local_api.cpp
    src/grpc_server.cpp
    src/node.cpp
)

target_include_directories(leukos-node PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/include)

target_link_libraries(leukos-node PRIVATE
    PkgConfig::JANSSON
    PkgConfig::SQLITE3
    PkgConfig::GPIOD
    PkgConfig::MOSQUITTO
    Threads::Threads
)

if(GRPCPP_FOUND)
    target_link_libraries(leukos-node PRIVATE PkgConfig::GRPCPP)
else()
    target_link_libraries(leukos-node PRIVATE gRPC::grpc++)
endif()

install(TARGETS leukos-node RUNTIME DESTINATION /usr/bin)

if(LEUKOS_AGENT_ENABLE_SYSTEMD_PACKAGING)
    install(PROGRAMS
        packaging/bin/leukos-agent
        packaging/bin/leukos-agent-heartbeat
        DESTINATION /usr/bin
    )

    install(FILES
        packaging/systemd/leukos-agent.service
        packaging/systemd/leukos-agent-heartbeat.service
        packaging/systemd/leukos-agent-heartbeat.timer
        DESTINATION /lib/systemd/system
    )

    install(FILES
        packaging/config/node.json
        DESTINATION /etc/leukos
        RENAME node.json.example
    )

    install(DIRECTORY DESTINATION /var/lib/leukos)

    set(CPACK_PACKAGE_NAME "leukos-agent")
    set(CPACK_PACKAGE_VENDOR "LeukOS")
    set(CPACK_PACKAGE_CONTACT "ops@leukos.local")
    set(CPACK_PACKAGE_DESCRIPTION_SUMMARY "LeukOS automation agent daemon")
    set(CPACK_PACKAGE_VERSION "${PROJECT_VERSION}")
    set(CPACK_PACKAGE_FILE_NAME "${CPACK_PACKAGE_NAME}-${CPACK_PACKAGE_VERSION}-${CMAKE_SYSTEM_NAME}")

    set(CPACK_GENERATOR "DEB")

    set(CPACK_DEBIAN_PACKAGE_MAINTAINER "LeukOS")
    set(CPACK_DEBIAN_FILE_NAME DEB-DEFAULT)
    set(CPACK_DEBIAN_PACKAGE_SECTION "utils")
    set(CPACK_DEBIAN_PACKAGE_PRIORITY "optional")
    set(CPACK_DEBIAN_PACKAGE_SHLIBDEPS ON)
    # Keep runtime complete on target hosts. shlibdeps adds ABI-level shared-lib deps,
    # this list covers service/runtime tooling and local MQTT broker availability.
    set(CPACK_DEBIAN_PACKAGE_DEPENDS "systemd, python3, curl, ca-certificates, mosquitto")
    set(CPACK_DEBIAN_PACKAGE_CONTROL_EXTRA
        "${CMAKE_CURRENT_SOURCE_DIR}/packaging/debian/postinst;${CMAKE_CURRENT_SOURCE_DIR}/packaging/debian/prerm"
    )

    include(CPack)
endif()