Add a new extension library: connection (#39)

samples/simple/wasm-apps/request_handler.c

@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2019 Intel Corporation.  All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "wasm_app.h"
+
+static void url1_request_handler(request_t *request)
+{
+    response_t response[1];
+    attr_container_t *payload;
+
+    printf("[resp] ### user resource 1 handler called\n");
+
+    if (request->payload != NULL && request->fmt == FMT_ATTR_CONTAINER)
+        attr_container_dump((attr_container_t *) request->payload);
+
+    payload = attr_container_create("wasm app response payload");
+    if (payload == NULL)
+        return;
+
+    attr_container_set_string(&payload, "key1", "value1");
+    attr_container_set_string(&payload, "key2", "value2");
+
+    make_response_for_request(request, response);
+    set_response(response, CONTENT_2_05,
+                 FMT_ATTR_CONTAINER,
+                 (void *)payload,
+                 attr_container_get_serialize_length(payload));
+    api_response_send(response);
+
+    attr_container_destroy(payload);
+}
+
+static void url2_request_handler(request_t *request)
+{
+    response_t response[1];
+    make_response_for_request(request, response);
+    set_response(response, DELETED_2_02, 0, NULL, 0);
+    api_response_send(response);
+
+    printf("### user resource 2 handler called\n");
+}
+
+void on_init()
+{
+    /* register resource uri */
+    api_register_resource_handler("/url1", url1_request_handler);
+    api_register_resource_handler("/url2", url2_request_handler);
+}
+
+void on_destroy()
+{
+    /* real destroy work including killing timer and closing sensor is
+       accomplished in wasm app library version of on_destroy() */
+}