opt(base,event):1.12.3, 优化CMakeLists.txt，使之能自动适应execinfo.h与epoll的支持情况

Author: hevake

modules/base/CMakeLists.txt

@@ -18,6 +18,8 @@
 # of the source tree.
 #
 
+include(CheckSymbolExists)
+
 set(TBOX_BASE_VERSION_MAJOR 1)
 set(TBOX_BASE_VERSION_MINOR 0)
 set(TBOX_BASE_VERSION_PATCH 1)
@@ -68,6 +70,15 @@ set(TBOX_BASE_TEST_SOURCES
     object_pool_test.cpp
     recorder_test.cpp)
 
+check_symbol_exists(backtrace "execinfo.h" HAVE_EXECINFO_H)
+
+if (HAVE_EXECINFO_H)
+    add_definitions(-DHAVE_EXECINFO_H=1)
+else()
+    message(WARNING "not support execinfo.h, can't use ::backtrace()"
+    add_definitions(-DHAVE_EXECINFO_H=0)
+endif()
+
 add_library(${TBOX_LIBRARY_NAME} ${TBOX_BUILD_LIB_TYPE} ${TBOX_BASE_SOURCES})
 add_library(tbox::${TBOX_LIBRARY_NAME} ALIAS ${TBOX_LIBRARY_NAME})
 

modules/base/Makefile

@@ -64,6 +64,8 @@ CXXFLAGS += -DMODULE_ID='"tbox.base"'
 
 ifeq ($(HAVE_EXECINFO_H),yes)
 CXXFLAGS += -DHAVE_EXECINFO_H=1
+else
+CXXFLAGS += -DHAVE_EXECINFO_H=0
 endif
 
 TEST_CPP_SRC_FILES = \

modules/event/CMakeLists.txt

@@ -20,6 +20,8 @@
 
 cmake_minimum_required(VERSION 3.15)
 
+include(CheckSymbolExists)
+
 set(TBOX_EVENT_VERSION_MAJOR 1)
 set(TBOX_EVENT_VERSION_MINOR 1)
 set(TBOX_EVENT_VERSION_PATCH 2)
@@ -36,7 +38,8 @@ set(TBOX_EVENT_HEADERS
     fd_event.h
     timer_event.h
     signal_event.h
-    stat.h)
+    stat.h
+)
 
 set(TBOX_EVENT_SOURCES
     loop.cpp
@@ -48,16 +51,37 @@ set(TBOX_EVENT_SOURCES
     signal_event_impl.cpp
     misc.cpp
     stat.cpp
-    engines/epoll/loop.cpp
-    engines/epoll/fd_event.cpp
-    engines/select/loop.cpp
-    engines/select/fd_event.cpp)
+)
 
 set(TBOX_EVENT_TEST_SOURCES
     common_loop_test.cpp
     fd_event_test.cpp
     timer_event_test.cpp
-    signal_event_test.cpp)
+    signal_event_test.cpp
+)
+
+check_symbol_exists(select "sys/select.h" HAVE_SELECT)
+check_symbol_exists(epoll_create1 "sys/epoll.h" HAVE_EPOLL)
+
+if (NOT HAVE_SELECT AND NOT HAVE_EPOLL)
+    message(FATAL_ERROR "Neither epoll nor select is supported by the system. Project cannot proceed.")
+endif()
+
+if (HAVE_SELECT)
+    add_definitions(-DHAVE_SELECT=1)
+    list(APPEND TBOX_EVENT_SOURCES
+        engines/select/loop.cpp
+        engines/select/fd_event.cpp
+    )
+endif()
+
+if (HAVE_EPOLL)
+    add_definitions(-DHAVE_EPOLL=1)
+    list(APPEND TBOX_EVENT_SOURCES
+        engines/epoll/loop.cpp
+        engines/epoll/fd_event.cpp
+    )
+endif()
 
 add_library(${TBOX_LIBRARY_NAME} ${TBOX_BUILD_LIB_TYPE} ${TBOX_EVENT_SOURCES})
 add_library(tbox::${TBOX_LIBRARY_NAME} ALIAS ${TBOX_LIBRARY_NAME})

version.mk

@@ -21,4 +21,4 @@
 # TBOX版本号
 TBOX_VERSION_MAJOR := 1
 TBOX_VERSION_MINOR := 12
-TBOX_VERSION_REVISION := 2
+TBOX_VERSION_REVISION := 3