Enable AoT and wamr-sdk, and change arguments of call wasm API (#157)

* Implement memory profiler, optimize memory usage, modify code indent

* Implement memory.grow and limit heap space base offset to 1G; modify iwasm build type to Release and 64 bit by default

* Add a new extension library: connection

* Fix bug of reading magic number and version in big endian platform

* Re-org platform APIs: move most platform APIs from iwasm to shared-lib

* Enhance wasm loader to fix some security issues

* Fix issue about illegal load of EXC_RETURN into PC on stm32 board

* Updates that let a restricted version of the interpreter run in SGX

* Enable native/app address validation and conversion for wasm app

* Remove wasm_application_exectue_* APIs from wasm_export.h which makes confused

* Refine binary size and fix several minor issues

Optimize interpreter LOAD/STORE opcodes to decrease the binary size
Fix issues when using iwasm library: _bh_log undefined, bh_memory.h not found
Remove unused _stdin/_stdout/_stderr global variables resolve in libc wrapper
Add macros of global heap size, stack size, heap size for Zephyr main.c
Clear compile warning of wasm_application.c

* Add more strict security checks for libc wrapper API's

* Use one libc wrapper copy for sgx and other platforms; remove bh_printf macro for other platform header files

* Enhance security of libc strcpy/sprintf wrapper function

* Fix issue of call native for x86_64/arm/mips, add module inst parameter for native wrapper functions

* Remove get_module_inst() and fix issue of call native

* Refine wgl lib: remove module_inst parameter from widget functions; move function index check to runtime instantiate

* Refine interpreter call native process, refine memory boudary check

* Fix issues of invokeNative function of arm/mips/general version

* Add a switch to build simple sample without gui support

* Add BUILD_TARGET setting in makefile to replace cpu compiler flags in source code

* Re-org shared lib header files, remove unused info; fix compile issues of vxworks

* Add build target general

* Remove unused files

* Update license header

* test push

* Restore file

* Sync up with internal/feature

* Sync up with internal/feature

* Rename build_wamr_app to build_wasm_app

* Fix small issues of README

* Enhance malformed wasm file checking
Fix issue of print hex int and implement utf8 string check
Fix wasi file read/write right issue
Fix minor issue of build wasm app doc

* Sync up with internal/feature

* Sync up with internal/feature: fix interpreter arm issue, fix read leb issue

* Sync up with internal/feature

* Fix bug of config.h and rename wasi config.h to ssp_config.h

* Sync up with internal/feature

* Import wamr aot

* update document

* update document

* Update document, disable WASI in 32bit

* update document

* remove files

* update document

* Update document

* update document

* update document

* update samples

* Sync up with internal repo

core/app-framework/connection/app/wa-inc/connection.h

@@ -0,0 +1,95 @@
+/*
+ * Copyright (C) 2019 Intel Corporation.  All rights reserved.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+ */
+
+#ifndef _CONNECTION_H_
+#define _CONNECTION_H_
+
+#include "bi-inc/attr_container.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct _connection;
+typedef struct _connection connection_t;
+
+/* Connection event type */
+typedef enum {
+    /* Data is received */
+    CONN_EVENT_TYPE_DATA = 1,
+    /* Connection is disconnected */
+    CONN_EVENT_TYPE_DISCONNECT
+} conn_event_type_t;
+
+/*
+ * @typedef on_connection_event_f
+ *
+ * @param conn the connection that the event belongs to
+ * @param type event type
+ * @param data the data received for CONN_EVENT_TYPE_DATA event
+ * @param len length of the data in byte
+ * @param user_data user data
+ */
+typedef void (*on_connection_event_f)(connection_t *conn,
+                                      conn_event_type_t type,
+                                      const char *data,
+                                      uint32 len,
+                                      void *user_data);
+
+/*
+ *****************
+ * Connection API's
+ *****************
+ */
+
+/*
+ * @brief Open a connection.
+ *
+ * @param name name of the connection, "TCP", "UDP" or "UART"
+ * @param args connection arguments, such as: ip:127.0.0.1, port:8888
+ * @param on_event callback function called when event occurs
+ * @param user_data user data
+ *
+ * @return the connection or NULL means fail
+ */
+connection_t *api_open_connection(const char *name,
+                                  attr_container_t *args,
+                                  on_connection_event_f on_event,
+                                  void *user_data);
+
+/*
+ * @brief Close a connection.
+ *
+ * @param conn connection
+ */
+void api_close_connection(connection_t *conn);
+
+/*
+ * Send data to the connection in non-blocking manner which returns immediately
+ *
+ * @param conn the connection
+ * @param data data buffer to be sent
+ * @param len length of the data in byte
+ *
+ * @return actual length sent, or -1 if fail(maybe underlying buffer is full)
+ */
+int api_send_on_connection(connection_t *conn, const char *data, uint32 len);
+
+/*
+ * @brief Configure connection.
+ *
+ * @param conn the connection
+ * @param cfg configurations
+ *
+ * @return true if success, false otherwise
+ */
+bool api_config_connection(connection_t *conn, attr_container_t *cfg);
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif