Add a new extension library: connection (#39)

samples/littlevgl/vgl-wasm-runtime/CMakeLists.txt

@@ -57,6 +57,8 @@ include (${WASM_DIR}/runtime/vmcore-wasm/vmcore.cmake)
 include (${WASM_DIR}/lib/native/base/wasm_lib_base.cmake)
 include (${WASM_DIR}/lib/native/libc/wasm_libc.cmake)
 include (${WASM_DIR}/lib/native/extension/sensor/wasm_lib_sensor.cmake)
+include (${WASM_DIR}/lib/native/extension/connection/wasm_lib_conn.cmake)
+include (${WASM_DIR}/lib/native/extension/connection/${TARGET_PLATFORM}/connection_mgr.cmake)
 include (${WASM_DIR}/lib/native-interface/native_interface.cmake)
 include (${APP_MGR_DIR}/app-manager/app_mgr.cmake)
 include (${APP_MGR_DIR}/app-mgr-shared/app_mgr_shared.cmake)
@@ -81,6 +83,8 @@ add_library (vmlib
              ${WASM_LIB_BASE_SOURCE}
              ${WASM_LIB_EXT_SOURCE}
              ${WASM_LIB_SENSOR_SOURCE}
+             ${WASM_LIB_CONN_SOURCE}
+             ${WASM_LIB_CONN_MGR_SOURCE}
              ${PLATFORM_SHARED_SOURCE}
              ${UTILS_SHARED_SOURCE}
              ${MEM_ALLOC_SHARED_SOURCE}

samples/littlevgl/vgl-wasm-runtime/src/ext_lib_export.c

@@ -1,8 +1,11 @@
 #include "lib_export.h"
 #include "native_interface.h"
+#include "connection_api.h"
 #include "display_indev.h"
+
 static NativeSymbol extended_native_symbol_defs[] = {
 #include "runtime_sensor.inl"
+#include "connection.inl"
         EXPORT_WASM_API(display_init),
         EXPORT_WASM_API(display_input_read),
         EXPORT_WASM_API(display_flush),

samples/littlevgl/vgl-wasm-runtime/src/platform/linux/iwasm_main.c

@@ -46,6 +46,7 @@ static int baudrate = B115200;
 extern void * thread_timer_check(void *);
 extern void init_sensor_framework();
 extern int aee_host_msg_callback(void *msg, uint16_t msg_len);
+extern bool init_connection_framework();
 
 #ifndef CONNECTION_UART
 int listenfd = -1;
@@ -441,6 +442,12 @@ int iwasm_main(int argc, char *argv[])
     if (vm_thread_sys_init() != 0) {
         goto fail1;
     }
+
+    if (!init_connection_framework()) {
+        vm_thread_sys_destroy();
+        goto fail1;
+    }
+
     extern void display_SDL_init();
     display_SDL_init();
 

samples/littlevgl/vgl-wasm-runtime/zephyr-build/CMakeLists.txt

@@ -38,6 +38,7 @@ target_include_directories(app PRIVATE ${IWASM_ROOT}/runtime/include
     ${IWASM_ROOT}/lib/native/base
     ${IWASM_ROOT}/lib/native/libc
     ${IWASM_ROOT}/lib/native/extension/sensor
+    ${IWASM_ROOT}/lib/native/extension/connection
     ${IWASM_ROOT}/lib/native-interface
     ${APP_MGR_ROOT}/app-manager
     ${APP_MGR_ROOT}/app-mgr-shared
@@ -69,6 +70,8 @@ set (IWASM_SRCS ${IWASM_ROOT}/runtime/platform/zephyr/wasm_math.c
     ${IWASM_ROOT}/lib/native/base/timer_wrapper.c
     ${IWASM_ROOT}/lib/native/libc/libc_wrapper.c
     ${IWASM_ROOT}/lib/native/extension/sensor/runtime_sensor.c
+    ${IWASM_ROOT}/lib/native/extension/connection/connection_wrapper.c
+    ${IWASM_ROOT}/lib/native/extension/connection/zephyr/connection_lib_impl.c
     ${IWASM_ROOT}/lib/native-interface/attr_container.c
     ${IWASM_ROOT}/lib/native-interface/restful_utils.c
     ${APP_MGR_ROOT}/app-manager/app_manager.c

samples/littlevgl/wasm-apps/Makefile_wasm_app

@@ -14,7 +14,17 @@
 
 CC = emcc
 LVGL_DIR = ${shell pwd}
-CFLAGS += -O3 -DLV_CONF_INCLUDE_SIMPLE=1 -I$(LVGL_DIR)/ -I$(LVGL_DIR)/lvgl/ -I$(LVGL_DIR)/lv_drivers/ -I$(LVGL_DIR)/src/ -I../../../core/iwasm/lib/app-libs/base/ -I../../../core/iwasm/lib/native-interface/  -I../../../core/iwasm/lib/app-libs/extension/sensor
+IWASM_DIR=../../../core/iwasm
+CFLAGS += -O3 \
+	  -DLV_CONF_INCLUDE_SIMPLE=1 \
+	  -I$(LVGL_DIR)/ \
+	  -I$(LVGL_DIR)/lvgl/ \
+	  -I$(LVGL_DIR)/lv_drivers/ \
+	  -I$(LVGL_DIR)/src/ \
+	  -I$(IWASM_DIR)/lib/app-libs/base/ \
+	  -I$(IWASM_DIR)/lib/native-interface/ \
+	  -I$(IWASM_DIR)/lib/app-libs/extension/sensor \
+	  -I$(IWASM_DIR)/lib/app-libs/extension/connection
 
 SRCS += lvgl/lv_draw/lv_draw_line.c lvgl/lv_draw/lv_draw_rbasic.c
 SRCS += lvgl/lv_draw/lv_draw_img.c lvgl/lv_draw/lv_draw_arc.c
@@ -46,10 +56,11 @@ SRCS += lvgl/lv_core/lv_group.c lvgl/lv_core/lv_style.c lvgl/lv_core/lv_indev.c
 SRCS += lvgl/lv_core/lv_vdb.c lvgl/lv_core/lv_obj.c lvgl/lv_core/lv_refr.c
 SRCS += $(LVGL_DIR)/src/main.c
 
-SRCS += ../../../core/iwasm/lib/app-libs/base/timer.c
+# For app size consideration, not all but necessary app libs are included
+SRCS += $(IWASM_DIR)/lib/app-libs/base/timer.c
 all: 
 	@$(CC) $(CFLAGS) $(SRCS) \
     -s WASM=1 -s SIDE_MODULE=1 -s ASSERTIONS=1 -s STACK_OVERFLOW_CHECK=2 \
     -s TOTAL_MEMORY=65536 -s TOTAL_STACK=2048\
-    -s "EXPORTED_FUNCTIONS=['_on_init', '_on_request', '_on_sensor_event', '_on_timer_callback']" \
+    -s "EXPORTED_FUNCTIONS=['_on_init', '_on_timer_callback']" \
     -o ui_app.wasm