Pre-version of 4a-hal-manager

Pre-version of 4a-hal manager that uses app-fwk DynAPI
and app-controller.
Current version :
- Declare a new API for each HAL (each .json config file
is used to generate one app-controller API) at startup.
- Define verbs that will be provided by this API.
- Provide verb to list and get info of loaded API.

Change-Id: I7bb6e8b7539b1acd5556fd9275a1b536e129332d
Signed-off-by: Jonathan Aillet <jonathan.aillet@iot.bzh>

1 files changed, 148 insertions, 0 deletions

diff --git a/4a-hal/4a-hal-manager/4a-hal-manager.c b/4a-hal/4a-hal-manager/4a-hal-manager.c
new file mode 100644
index 0000000..257aa38
--- /dev/null
+++ b/4a-hal/4a-hal-manager/4a-hal-manager.c
@@ -0,0 +1,148 @@
+/*
+ * Copyright (C) 2016 "IoT.bzh"
+ * Author Jonathan Aillet <jonathan.aillet@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.
+ */
+
+#define _GNU_SOURCE
+
+#include <stdio.h>
+#include <stdbool.h>
+#include <string.h>
+
+#include "../4a-hal-utilities/4a-hal-utilities-data.h"
+#include "../4a-hal-utilities/4a-hal-utilities-verbs-loader.h"
+#include "../4a-hal-controllers/4a-hal-controllers-api-loader.h"
+
+#include "4a-hal-manager.h"
+#include "4a-hal-manager-cb.h"
+
+// Default api to print log when apihandle not available
+afb_dynapi *AFB_default;
+
+/*******************************************************************************
+ *		HAL Manager verbs table					       *
+ ******************************************************************************/
+
+// Hal manager exported verbs
+struct HalUtlApiVerb HalManagerApiStaticVerbs[] =
+{
+	/* VERB'S NAME			FUNCTION TO CALL			SHORT DESCRIPTION */
+	{ .verb = "ping",		.callback = HalMgrPing,			.info = "Ping test for DynApi"},
+	{ .verb = "loaded",		.callback = HalMgrLoaded,		.info = "Show loaded HAL"},
+	{ .verb = "load",		.callback = HalMgrLoad,			.info = "Load an external HAL to HAL Manager"},
+	{ .verb = "unload",		.callback = HalMgrUnload,		.info = "Unload an external HAL to HAL Manager"},
+	{ .verb = "subscribe",		.callback = HalMgrSubscribeEvent,	.info = "Subscribe to an event"},
+	{ .verb = "unsuscribe",		.callback = HalMgrUnsubscribeEvent,	.info = "Unsubscribe to an event"},
+	{ .verb = NULL }		// Marker for end of the array
+};
+
+/*******************************************************************************
+ *		Dynamic API functions for hal manager			       *
+ *		TODO JAI : Use API-V3 instead of API-PRE-V3		       *
+ ******************************************************************************/
+
+static int HalMgrInitApi(afb_dynapi *apiHandle)
+{
+	struct HalMgrData *HalMgrGlobalData;
+
+	if(! apiHandle)
+		return -1;
+
+	// Hugely hack to make all V2 AFB_DEBUG to work in fileutils
+	AFB_default = apiHandle;
+
+	// Retrieve section config from api handle
+	HalMgrGlobalData = (struct HalMgrData *) afb_dynapi_get_userdata(apiHandle);
+	if(! HalMgrGlobalData)
+		return -2;
+
+	if(HalUtlInitializeHalMgrData(apiHandle, HalMgrGlobalData, HAL_MANAGER_API_NAME, HAL_MANAGER_API_INFO))
+		return -3;
+
+	return 0;
+}
+
+static int HalMgrLoadApi(void *cbdata, afb_dynapi *apiHandle)
+{
+	struct HalMgrData *HalMgrGlobalData;
+
+	if(! cbdata || ! apiHandle)
+		return -1;
+
+	HalMgrGlobalData = (struct HalMgrData *) cbdata;
+
+	// Save closure as api's data context
+	afb_dynapi_set_userdata(apiHandle, HalMgrGlobalData);
+
+	// Add static controls verbs
+	if(HalUtlLoadStaticVerbs(apiHandle, HalManagerApiStaticVerbs)) {
+		AFB_DYNAPI_ERROR(apiHandle, "%s : load section : fail to register static V2 verbs", __func__);
+		return 1;
+	}
+
+	// Declare an event manager for Hal Manager
+	afb_dynapi_on_event(apiHandle, HalMgrDispatchApiEvent);
+
+	// Init Api function (does not receive user closure ???)
+	afb_dynapi_on_init(apiHandle, HalMgrInitApi);
+
+	afb_dynapi_seal(apiHandle);
+
+	return 0;
+}
+
+int HalMgrCreateApi(afb_dynapi *apiHandle, struct HalMgrData *HalMgrGlobalData)
+{
+	if(! apiHandle || ! HalMgrGlobalData)
+		return -1;
+
+	// Create one API (Pre-V3 return code ToBeChanged)
+	return afb_dynapi_new_api(apiHandle, HAL_MANAGER_API_NAME, HAL_MANAGER_API_INFO, 1, HalMgrLoadApi, HalMgrGlobalData);
+}
+
+/*******************************************************************************
+ *		Startup function					       *
+ *		TODO JAI : Use API-V3 instead of API-PRE-V3		       *
+ ******************************************************************************/
+
+int afbBindingVdyn(afb_dynapi *apiHandle)
+{
+	int status = 0, rc;
+	struct HalMgrData *HalMgrGlobalData;
+
+	if(! apiHandle)
+		return -1;
+
+	HalMgrGlobalData = (struct HalMgrData *) calloc(1, sizeof(struct HalMgrData));
+	if(! HalMgrGlobalData)
+		return -2;
+
+	// Hugely hack to make all V2 AFB_DEBUG to work in fileutils
+	AFB_default = apiHandle;
+
+	AFB_DYNAPI_NOTICE(apiHandle, "In %s", __func__);
+
+	// Load Hal-Manager using DynApi
+	rc = HalMgrCreateApi(apiHandle, HalMgrGlobalData);
+	if(rc < 0)
+		status--;
+
+	// Load Hal-Ctls using DynApi
+	rc = HalCtlsCreateAllApi(apiHandle, HalMgrGlobalData);
+	if(rc < 0)
+		status -= rc;
+
+	return status;
+}
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