summaryrefslogtreecommitdiffstats
path: root/src/bind_event.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/bind_event.c')
-rw-r--r--src/bind_event.c114
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;
+}