1 files changed, 114 insertions, 0 deletions
diff --git a/src/bind_event.c b/src/bind_event.c
new file mode 100644
index 0000000..01887cd
--- /dev/null
+++ b/src/bind_event.c
@@ -0,0 +1,114 @@
+/*
+ * Copyright (c) 2017 TOYOTA MOTOR CORPORATION
+ *
+ * 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 <stdlib.h>
+#include <string.h>
+#include <search.h>
+
+#include "af-steering-wheel-binding.h"
+#include "bind_event.h"
+#include "prop_search.h"
+
+static  void *bind_event_root = NULL;
+
+static int compare(const void *pa, const void *pb)
+{
+	struct bind_event_t *a = (struct bind_event_t *)pa;
+	struct bind_event_t *b = (struct bind_event_t *)pb;
+	return strcmp(a->name, b->name);
+}
+
+struct bind_event_t *get_event(const char *name)
+{
+	struct bind_event_t key;
+	void *ent;
+
+	/*
+ 	 * search subscribed event.
+ 	 */
+	key.name = name;
+	ent = tfind(&key, &bind_event_root, compare);
+	if (ent != NULL)
+		return *(struct bind_event_t **)ent; /* found */
+	return NULL; /* not found */
+}
+
+struct bind_event_t *register_event(const char *name)
+{
+	struct bind_event_t *evt;
+	struct prop_info_t *property_info;
+	void *ent;
+
+	property_info = getProperty_dict(name);
+	if (property_info == NULL)
+	{
+		ERRMSG("NOT Supported property:\"%s\".", name);
+		return NULL;
+	}
+	evt = calloc(1, sizeof(*evt));
+	if (evt == NULL)
+	{
+		ERRMSG("not enough memory");
+		return NULL;
+	}
+
+	evt->event = afb_daemon_make_event(property_info->name);
+	if (!afb_event_is_valid(evt->event))
+	{
+		free(evt);
+		ERRMSG("afb_daemon_make_event failed");
+		return NULL;
+	}
+
+	evt->name = property_info->name;
+	evt->raw_info = property_info;
+	ent = tsearch(evt, &bind_event_root, compare);
+	if (ent == NULL)
+	{
+		ERRMSG("not enough memory");
+		afb_event_drop(evt->event);
+		free(evt);
+		return NULL;
+	}
+#ifdef DEBUG /* double check */
+	if ((*(struct bind_event_t **)ent) != evt)
+		ERRMSG("event \"%s\" is duplicate?", property_info->name);
+#endif
+
+	return  evt;
+}
+
+int remove_event(const char *name)
+{
+	struct bind_event_t *dnode;
+	struct bind_event_t key;
+	void *p;
+
+	key.name = name;
+	p = tfind(&key, &bind_event_root, compare);
+	if (p == NULL)
+	{
+		return 0;
+	}
+	dnode = *(struct bind_event_t **)p;
+	afb_event_drop(dnode->event);
+	tdelete(&key, &bind_event_root, compare);
+	free(dnode);
+
+	return 0;
+}