1469 Output LB statistics as JSON

cmake/link_vt.cmake

@@ -32,6 +32,8 @@ function(link_target_with_vt)
     LINK_DL
     LINK_ZOLTAN
     LINK_FORT
+    LINK_JSON
+    LINK_BROTLI
   )
   set(
     multiValueArg
@@ -49,6 +51,18 @@ function(link_target_with_vt)
     message(STATUS "link_target_with_vt: default link=${ARG_DEFAULT_LINK_SET}")
   endif()
 
+  if (NOT DEFINED ARG_LINK_JSON AND ${ARG_DEFAULT_LINK_SET} OR ARG_LINK_JSON)
+    target_link_libraries(
+      ${ARG_TARGET} PRIVATE ${ARG_BUILD_TYPE} ${JSON_LIBRARY}
+    )
+  endif()
+
+  if (NOT DEFINED ARG_LINK_BROTLI AND ${ARG_DEFAULT_LINK_SET} OR ARG_LINK_BROTLI)
+    target_link_libraries(
+      ${ARG_TARGET} PRIVATE ${ARG_BUILD_TYPE} ${BROTLI_LIBRARY}
+    )
+  endif()
+
   if (NOT DEFINED ARG_LINK_FORT AND ${ARG_DEFAULT_LINK_SET} OR ARG_LINK_FORT)
     if (vt_libfort_enabled)
       target_link_libraries(

cmake/load_bundled_libraries.cmake

@@ -23,6 +23,19 @@ add_subdirectory(${PROJECT_LIB_DIR}/CLI)
 set(FMT_LIBRARY fmt)
 add_subdirectory(${PROJECT_LIB_DIR}/fmt)
 
+# json library always included in the build
+set(JSON_BuildTests OFF)
+set(JSON_MultipleHeaders ON)
+set(JSON_LIBRARY nlohmann_json)
+add_subdirectory(${PROJECT_LIB_DIR}/json)
+
+# brotli library always included in the build
+set(BROTLI_DISABLE_TESTS ON)
+# we need to disable bundled mode so it will install properly
+set(BROTLI_BUNDLED_MODE OFF)
+set(BROTLI_LIBRARY brotlicommon brotlienc brotlidec)
+add_subdirectory(${PROJECT_LIB_DIR}/brotli)
+
 # Optionally include mimalloc (alternative memory allocator)
 if (vt_mimalloc_enabled)
   add_subdirectory(${PROJECT_LIB_DIR}/mimalloc)