Add callback manager

Callback manager sets up matches and sets properties on
dbus.

Tested: used sensor override to make sensors assert
critical and warning interfaces and saw led change. also
caught a few buggy threshold settings using led.

Change-Id: I06c164b749febbc3e81cb3db5f7a0a2b72b3678f
Signed-off-by: James Feist <james.feist@linux.intel.com>
diff --git a/callback-manager/CMakeLists.txt b/callback-manager/CMakeLists.txt
new file mode 100644
index 0000000..80a3dcc
--- /dev/null
+++ b/callback-manager/CMakeLists.txt
@@ -0,0 +1,74 @@
+cmake_minimum_required (VERSION 3.1 FATAL_ERROR)
+set (BUILD_SHARED_LIBRARIES OFF)
+include (ExternalProject)
+set (CMAKE_CXX_STANDARD 17)
+set (CMAKE_CXX_STANDARD_REQUIRED ON)
+set (CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake ${CMAKE_MODULE_PATH})
+set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-rtti")
+set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fno-rtti")
+
+option (YOCTO "Enable Building in Yocto" OFF)
+
+if (NOT YOCTO)
+    externalproject_add (
+        Boost URL
+        https://dl.bintray.com/boostorg/release/1.66.0/source/boost_1_66_0.tar.gz
+        URL_MD5 d275cd85b00022313c171f602db59fc5 SOURCE_DIR
+        "${CMAKE_BINARY_DIR}/boost-src" BINARY_DIR
+        "${CMAKE_BINARY_DIR}/boost-build" CONFIGURE_COMMAND "" BUILD_COMMAND ""
+        INSTALL_COMMAND mkdir -p "${CMAKE_BINARY_DIR}/prefix/include/" && cp -R
+        ${CMAKE_BINARY_DIR}/boost-src/boost ${CMAKE_BINARY_DIR}/prefix/include
+    ) # requires apt install autoconf-archive and autoconf
+    externalproject_add (sdbusplus-project PREFIX
+                         ${CMAKE_BINARY_DIR}/sdbusplus-project GIT_REPOSITORY
+                         https://github.com/openbmc/sdbusplus.git GIT_TAG
+                         bed15f0cee4784acdf151cca14efdfb98cb9d397 SOURCE_DIR
+                         ${CMAKE_BINARY_DIR}/sdbusplus-src BINARY_DIR
+                         ${CMAKE_BINARY_DIR}/sdbusplus-build CONFIGURE_COMMAND
+                         "" BUILD_COMMAND cd ${CMAKE_BINARY_DIR}/sdbusplus-src
+                         && ./bootstrap.sh && ./configure --enable-transaction
+                         && make -j libsdbusplus.la INSTALL_COMMAND ""
+                         LOG_DOWNLOAD ON)
+
+    include_directories (${CMAKE_BINARY_DIR}/sdbusplus-src)
+    include_directories (${CMAKE_BINARY_DIR}/nlohmann/include)
+    include_directories (${CMAKE_BINARY_DIR}/nlohmann/include/nlohmann)
+    include_directories (${CMAKE_BINARY_DIR}/phosphor-dbus-interfaces/include)
+    link_directories (${CMAKE_BINARY_DIR}/sdbusplus-src/.libs)
+
+    include_directories (${CMAKE_BINARY_DIR}/boost-src)
+    set (CMAKE_PREFIX_PATH ${CMAKE_BINARY_DIR}/boost-src ${CMAKE_PREFIX_PATH})
+    option (ENABLE_TEST "Enable Google Test" OFF)
+    if (ENABLE_TEST)
+        hunter_add_package (GTest)
+        find_package (GTest CONFIG REQUIRED)
+        enable_testing ()
+    endif ()
+endif ()
+
+add_definitions (-DBOOST_ERROR_CODE_HEADER_ONLY)
+add_definitions (-DBOOST_SYSTEM_NO_DEPRECATED)
+add_definitions (-DBOOST_ALL_NO_LIB)
+add_definitions (-DBOOST_NO_RTTI)
+add_definitions (-DBOOST_NO_TYPEID)
+add_definitions (-DBOOST_ASIO_DISABLE_THREADS)
+
+include_directories (${CMAKE_CURRENT_SOURCE_DIR}/include)
+include_directories (${Boost_INCLUDE_DIRS})
+include_directories (${CMAKE_CURRENT_SOURCE_DIR}/include)
+
+add_executable (callback-manager src/callback_manager.cpp)
+
+target_link_libraries (callback-manager -lsystemd)
+target_link_libraries (callback-manager stdc++fs)
+target_link_libraries (callback-manager ${Boost_LIBRARIES})
+target_link_libraries (callback-manager sdbusplus)
+
+if (NOT YOCTO)
+    add_dependencies (callback-manager sdbusplus-project)
+endif ()
+
+set (SERVICE_FILES ${PROJECT_SOURCE_DIR}/service_files/callback-manager.service)
+
+install (TARGETS callback-manager DESTINATION sbin)
+install (FILES ${SERVICE_FILES} DESTINATION /lib/systemd/system/)