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-rw-r--r--src/prop_search.c128
1 files changed, 128 insertions, 0 deletions
diff --git a/src/prop_search.c b/src/prop_search.c
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--- /dev/null
+++ b/src/prop_search.c
@@ -0,0 +1,128 @@
+/*
+ * 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 <stdio.h>
+#include <stdlib.h>
+#include <search.h>
+#include <string.h>
+
+#include "af-steering-wheel-binding.h"
+#include "prop_search.h"
+
+#define SUPPORT_PROPERTY_LIMIT 512
+
+static void *property_root = NULL;
+static const char *support_property_list[SUPPORT_PROPERTY_LIMIT];
+static int nProperties = 0;
+static void (*_walker_action)(struct prop_info_t *);
+
+static int property_compare(const void *pa, const void *pb)
+{
+ struct prop_info_t *a =(struct prop_info_t *)pa;
+ struct prop_info_t *b =(struct prop_info_t *)pb;
+ return strcmp(a->name,b->name);
+}
+
+static int addProperty_dict(struct prop_info_t *prop_info)
+{
+ void *v;
+ v = tfind((void *)prop_info, &property_root, property_compare);
+ if (v == NULL)
+ {
+ v = tsearch((void *)prop_info, &property_root, property_compare);
+ if (v == NULL)
+ {
+ ERRMSG("add property failed: not enogh memory?");
+ return -1;
+ }
+ if (nProperties >= SUPPORT_PROPERTY_LIMIT)
+ {
+ ERRMSG("Reach properties limit");
+ return -1;
+ }
+ support_property_list[nProperties] = prop_info->name;
+ ++nProperties;
+ return 0;
+ } /* else Multi entry */
+
+ return 1;
+}
+
+int addAllPropDict(struct wheel_info_t *wheel_info)
+{
+ unsigned int maxEntry = wheel_info->nData;
+
+ for(unsigned int i=0; i < maxEntry ; i++)
+ {
+ int ret;
+ ret = addProperty_dict(&wheel_info->property[i]);
+ if (!ret)
+ {
+ continue;
+ }
+ }
+
+ return 0;
+}
+
+const char **getSupportPropertiesList(int *nEntry)
+{
+ *nEntry = nProperties;
+ return support_property_list;
+}
+
+struct prop_info_t * getProperty_dict(const char *propertyName)
+{
+ struct prop_info_t key;
+ void *v;
+
+ key.name = propertyName;
+ v = tfind((void *)&key, &property_root, property_compare);
+ if (v == NULL) {
+ return NULL;
+ }
+ return (*(struct prop_info_t **)v);
+}
+
+static void canid_walk_action(const void *nodep, const VISIT which , const int depth)
+{
+ struct prop_info_t *datap;
+
+ switch (which) {
+ case preorder:
+ break;
+ case postorder:
+ datap = *(struct prop_info_t **) nodep;
+ _walker_action(datap);
+ break;
+ case endorder:
+ break;
+ case leaf:
+ datap = *(struct prop_info_t **) nodep;
+ _walker_action(datap);
+ break;
+ }
+}
+
+void canid_walker(void (*walker_action)(struct prop_info_t *))
+{
+ if (walker_action == NULL)
+ return;
+ _walker_action = walker_action;
+ twalk(property_root, canid_walk_action);
+}