refactor CMakeLists.txt to support all three build modes

Author: gabrielecastellano

CMakeLists.txt

@@ -37,10 +37,16 @@ file(MAKE_DIRECTORY ${RESULT_DIR})
 option(CLEAN_BUILD "Clean build directory" OFF)
 option(CLEAN_RESULT "Clean result directory" OFF)
 
-# Build types
-option(BUILD_SIM "Build NS3 simulation" OFF)
-option(BUILD_ANALYTICAL "Build analytical" OFF)
-option(BUILD_PHY "Build physical" OFF)
+# Build mode
+set(SIMAI_MODE "analytical" CACHE STRING "SimAI build mode")
+set_property(CACHE SIMAI_MODE PROPERTY STRINGS analytical ns3 phy)
+set(_valid_simai_modes analytical ns3 phy)
+list(FIND _valid_simai_modes "${SIMAI_MODE}" _simai_mode_index)
+if(_simai_mode_index EQUAL -1)
+    message(FATAL_ERROR
+            "Invalid SIMAI_MODE='${SIMAI_MODE}'. "
+            "Expected one of: analytical, ns3, phy")
+endif()
 
 # Other options
 option(SYS_ASSERTS "Enable assert() in all profile with -UNDEBUG" OFF)
@@ -102,7 +108,7 @@ if(SYS_ASSERTS)
     message(STATUS "Asserts enabled for all profiles.")
 endif()
 
-if(BUILD_SIM)
+if(SIMAI_MODE STREQUAL "ns3")
     # AstraSim
     add_subdirectory(astra-sim-alibabacloud/build/astra_ns3)
 
@@ -164,10 +170,41 @@ if(BUILD_SIM)
     )
 endif()
 
-if(BUILD_ANALYTICAL)
-    add_subdirectory(astra-sim-alibabacloud/build/simai_analytical)
-endif()
+elseif(SIMAI_MODE STREQUAL "analytical")
+    set(USE_ANALYTICAL TRUE CACHE BOOL "Set analytical build" FORCE)
+
+    # Build AstraSim library
+    add_subdirectory(astra-sim-alibabacloud AstraSim)
+
+    # Build analytical frontend
+    add_subdirectory(astra-sim-alibabacloud/astra-sim/network_frontend/analytical simai_analytical)
+
+    # Link binaries
+    add_custom_target(create_analytical_symlink ALL
+            COMMAND ${CMAKE_COMMAND} -E make_directory "${CMAKE_CURRENT_SOURCE_DIR}/bin"
+            COMMAND ${CMAKE_COMMAND} -E create_symlink
+            "$<TARGET_FILE:SimAI_analytical>"
+            "${CMAKE_CURRENT_SOURCE_DIR}/bin/SimAI_analytical"
+            DEPENDS SimAI_analytical
+            COMMENT "Creating SimAI_analytical symlink..."
+    )endif()
 
-if(BUILD_PHY)
-    add_subdirectory(astra-sim-alibabacloud/build/simai_phy)
+elseif(SIMAI_MODE STREQUAL "phy")
+    set(USE_RDMA TRUE CACHE BOOL "Set RDMA build" FORCE)
+
+    # Build AstraSim library
+    add_subdirectory(astra-sim-alibabacloud AstraSim)
+
+    # Build phynet frontend
+    add_subdirectory(astra-sim-alibabacloud/astra-sim/network_frontend/phynet simai_phynet)
+
+    # Link binaries
+    add_custom_target(create_phy_symlink ALL
+            COMMAND ${CMAKE_COMMAND} -E make_directory "${CMAKE_CURRENT_SOURCE_DIR}/bin"
+            COMMAND ${CMAKE_COMMAND} -E create_symlink
+            "$<TARGET_FILE:SimAI_phynet>"
+            "${CMAKE_CURRENT_SOURCE_DIR}/bin/SimAI_phynet"
+            DEPENDS SimAI_phynet
+            COMMENT "Creating SimAI_phynet symlink..."
+    )
 endif()