fix: validate io_uring server path

.github/workflows/cmake-multi-platform.yml

@@ -45,6 +45,12 @@ jobs:
           sudo apt-get update
           sudo apt-get install -y clang
 
+      - name: Install Linux dependencies
+        if: matrix.os == 'ubuntu-latest'
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y liburing-dev
+
       - name: Ensure CMake on macOS
         if: matrix.os == 'macos-latest'
         run: |
@@ -134,7 +140,7 @@ jobs:
       - name: Install sanitizer toolchain
         run: |
           sudo apt-get update
-          sudo apt-get install -y clang
+          sudo apt-get install -y clang liburing-dev
 
       - name: Configure CMake with sanitizers
         run: >

CMakeLists.txt

@@ -15,6 +15,8 @@ find_package(Threads REQUIRED)
 option(FKVS_ENABLE_WARNINGS "Enable strict compiler warnings" ON)
 option(FKVS_WARNINGS_AS_ERRORS "Treat compiler warnings as errors" OFF)
 option(FKVS_ENABLE_SANITIZERS "Enable AddressSanitizer and UndefinedBehaviorSanitizer" OFF)
+option(FKVS_ENABLE_IO_URING "Enable io_uring server backend when liburing is available" ON)
+set(FKVS_HAVE_IO_URING FALSE)
 
 function(fkvs_configure_target target_name)
   target_compile_definitions(${target_name} PRIVATE _POSIX_C_SOURCE=200809L)
@@ -42,13 +44,18 @@ if(APPLE)
   target_compile_definitions(fkvs-benchmark PRIVATE CLI)
   fkvs_configure_target(fkvs-benchmark)
 elseif(LINUX)
-  find_library(LIBURING liburing)
+  if(FKVS_ENABLE_IO_URING)
+    find_path(LIBURING_INCLUDE_DIR NAMES liburing.h)
+    find_library(LIBURING_LIBRARY NAMES uring)
+  endif()
 
-  if(LIBURING)
+  if(FKVS_ENABLE_IO_URING AND LIBURING_INCLUDE_DIR AND LIBURING_LIBRARY)
     add_executable(fkvs-server src/memory.c src/counter.c src/client.c src/core/list.c src/config.c src/networking/networking.c src/server.c src/server_lifecycle.c src/server_limits.c src/core/hashtable.c src/commands/common/command_registry.c src/commands/server/server_command_handlers.c src/io/event_dispatcher_io_uring.c src/ttl.c src/numeric_parse.c)
-    target_link_libraries(fkvs-server PRIVATE LIBURING)
+    target_include_directories(fkvs-server PRIVATE ${LIBURING_INCLUDE_DIR})
+    target_link_libraries(fkvs-server PRIVATE ${LIBURING_LIBRARY})
     target_compile_definitions(fkvs-server PRIVATE SERVER IO_URING_ENABLED)
     fkvs_configure_target(fkvs-server)
+    set(FKVS_HAVE_IO_URING TRUE)
   else()
     add_executable(fkvs-server src/memory.c src/counter.c src/client.c src/core/list.c src/config.c src/networking/networking.c src/server.c src/server_lifecycle.c src/server_limits.c src/core/hashtable.c src/commands/common/command_registry.c src/commands/server/server_command_handlers.c src/io/event_dispatcher_epoll.c src/ttl.c src/numeric_parse.c)
     target_compile_definitions(fkvs-server PRIVATE SERVER)
@@ -106,6 +113,14 @@ add_test(NAME ServerLifecycleTest COMMAND test_server_lifecycle)
 add_test(NAME ServerConfigTest COMMAND test_server_config)
 add_test(NAME ServerLimitsTest COMMAND test_server_limits)
 add_test(NAME IntegrationTest COMMAND test_integration)
+if(FKVS_HAVE_IO_URING)
+  find_package(Python3 COMPONENTS Interpreter REQUIRED)
+  add_test(
+    NAME IoUringSmokeTest
+    COMMAND ${Python3_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/tests/io_uring_smoke.py $<TARGET_FILE:fkvs-server>
+  )
+  set_tests_properties(IoUringSmokeTest PROPERTIES TIMEOUT 30)
+endif()
 add_executable(fkvs-cli src/string_utils.c src/fkvs-cli.c src/config.c src/commands/common/command_parser.c src/commands/client/client_command_handlers.c)
   target_link_libraries(fkvs-benchmark PRIVATE Threads::Threads)
   target_link_libraries(fkvs-cli PUBLIC linenoise)