1 files changed, 175 insertions, 0 deletions
diff --git a/include/afb/afb-req-itf.h b/include/afb/afb-req-itf.h
new file mode 100644
index 00000000..a8980ffc
--- /dev/null
+++ b/include/afb/afb-req-itf.h
@@ -0,0 +1,175 @@
+/*
+ * Copyright (C) 2016 "IoT.bzh"
+ * Author: José Bollo <jose.bollo@iot.bzh>
+ *
+ * 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.
+ */
+
+#pragma once
+
+struct json_object;
+
+struct afb_arg {
+	const char *name;
+	const char *value;
+	const char *path;
+};
+
+struct afb_req_itf {
+	struct json_object *(*json)(void *closure);
+	struct afb_arg (*get)(void *closure, const char *name);
+
+	void (*success)(void *closure, struct json_object *obj, const char *info);
+	void (*fail)(void *closure, const char *status, const char *info);
+
+	const char *(*raw)(void *closure, size_t *size);
+	void (*send)(void *closure, const char *buffer, size_t size);
+
+	void *(*context_get)(void *closure);
+	void (*context_set)(void *closure, void *value, void (*free_value)(void*));
+
+	void (*addref)(void *closure);
+	void (*unref)(void *closure);
+};
+
+struct afb_req {
+	const struct afb_req_itf *itf;
+	void *closure;
+};
+
+static inline struct afb_arg afb_req_get(struct afb_req req, const char *name)
+{
+	return req.itf->get(req.closure, name);
+}
+
+static inline const char *afb_req_value(struct afb_req req, const char *name)
+{
+	return afb_req_get(req, name).value;
+}
+
+static inline const char *afb_req_path(struct afb_req req, const char *name)
+{
+	return afb_req_get(req, name).path;
+}
+
+static inline struct json_object *afb_req_json(struct afb_req req)
+{
+	return req.itf->json(req.closure);
+}
+
+static inline void afb_req_success(struct afb_req req, struct json_object *obj, const char *info)
+{
+	req.itf->success(req.closure, obj, info);
+}
+
+static inline void afb_req_fail(struct afb_req req, const char *status, const char *info)
+{
+	req.itf->fail(req.closure, status, info);
+}
+
+static inline const char *afb_req_raw(struct afb_req req, size_t *size)
+{
+	return req.itf->raw(req.closure, size);
+}
+
+static inline void afb_req_send(struct afb_req req, const char *buffer, size_t size)
+{
+	req.itf->send(req.closure, buffer, size);
+}
+
+static inline void *afb_req_context_get(struct afb_req req)
+{
+	return req.itf->context_get(req.closure);
+}
+
+static inline void afb_req_context_set(struct afb_req req, void *value, void (*free_value)(void*))
+{
+	return req.itf->context_set(req.closure, value, free_value);
+}
+
+static inline void afb_req_context_clear(struct afb_req req)
+{
+	afb_req_context_set(req, NULL, NULL);
+}
+
+static inline void afb_req_addref(struct afb_req req)
+{
+	return req.itf->addref(req.closure);
+}
+
+static inline void afb_req_unref(struct afb_req req)
+{
+	return req.itf->unref(req.closure);
+}
+
+#include <stdlib.h>
+
+static inline struct afb_req *afb_req_store(struct afb_req req)
+{
+	struct afb_req *result = malloc(sizeof *result);
+	if (result != NULL) {
+		*result = req;
+		afb_req_addref(req);
+	}
+	return result;
+}
+
+static inline struct afb_req afb_req_unstore(struct afb_req *req)
+{
+	struct afb_req result = *req;
+	free(req);
+	afb_req_unref(result);
+	return result;
+}
+
+#if !defined(_GNU_SOURCE)
+# error "_GNU_SOURCE must be defined for using vasprintf"
+#endif
+
+#include <stdarg.h>
+#include <stdio.h>
+
+static inline void afb_req_fail_v(struct afb_req req, const char *status, const char *info, va_list args)
+{
+	char *message;
+	if (info == NULL || vasprintf(&message, info, args) < 0)
+		message = NULL;
+	afb_req_fail(req, status, message);
+	free(message);
+}
+
+static inline void afb_req_fail_f(struct afb_req req, const char *status, const char *info, ...)
+{
+	va_list args;
+	va_start(args, info);
+	afb_req_fail_v(req, status, info, args);
+	va_end(args);
+}
+
+static inline void afb_req_success_v(struct afb_req req, struct json_object *obj, const char *info, va_list args)
+{
+	char *message;
+	if (info == NULL || vasprintf(&message, info, args) < 0)
+		message = NULL;
+	afb_req_success(req, obj, message);
+	free(message);
+}
+
+static inline void afb_req_success_f(struct afb_req req, struct json_object *obj, const char *info, ...)
+{
+	va_list args;
+	va_start(args, info);
+	afb_req_success_v(req, obj, info, args);
+	va_end(args);
+}
+