Remove node_iterator and operate on node list directly to improve memory usage

6 files changed, 1 insertions, 254 deletions

diff --git a/libcnary/Makefile.am b/libcnary/Makefile.am
index bba9ada..5a26fb5 100644
--- a/libcnary/Makefile.am
+++ b/libcnary/Makefile.am
@@ -8,11 +8,7 @@ libcnary_la_SOURCES = \
                        node.c \
                        list.c \
                        node_list.c \
-                       iterator.c \
-                       node_iterator.c \
                        include/node.h \
                        include/list.h \
                        include/node_list.h \
-                       include/iterator.h \
-                       include/node_iterator.h \
                        include/object.h
diff --git a/libcnary/include/iterator.h b/libcnary/include/iterator.h
deleted file mode 100644
index a33c4ff..0000000
--- a/libcnary/include/iterator.h
+++ /dev/null
@@ -1,49 +0,0 @@
-/*
- * iterator.h
- *
- *  Created on: Mar 8, 2011
- *      Author: posixninja
- *
- * Copyright (c) 2011 Joshua Hill. All Rights Reserved.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- */
-
-#ifndef ITERATOR_H_
-#define ITERATOR_H_
-
-struct list_t;
-struct object_t;
-
-typedef struct iterator_t {
-        struct object_t*(*next)(struct iterator_t* iterator);
-        int(*bind)(struct iterator_t* iterator, struct list_t* list);
-
-        unsigned int count;
-        unsigned int position;
-
-        struct list_t* list;
-        struct object_t* end;
-        struct object_t* begin;
-        struct object_t* value;
-} iterator_t;
-
-void iterator_destroy(struct iterator_t* iterator);
-struct iterator_t* iterator_create(struct list_t* list);
-
-struct object_t* iterator_next(struct iterator_t* iterator);
-int iterator_bind(struct iterator_t* iterator, struct list_t* list);
-
-#endif /* ITERATOR_H_ */
diff --git a/libcnary/include/node_iterator.h b/libcnary/include/node_iterator.h
deleted file mode 100644
index d3bce3a..0000000
--- a/libcnary/include/node_iterator.h
+++ /dev/null
@@ -1,55 +0,0 @@
-/*
- * node_iterator.h
- *
- *  Created on: Mar 8, 2011
- *      Author: posixninja
- *
- * Copyright (c) 2011 Joshua Hill. All Rights Reserved.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- */
-
-#ifndef NODE_ITERATOR_H_
-#define NODE_ITERATOR_H_
-
-#include "iterator.h"
-#include "node_list.h"
-
-// This class implements the abstract iterator class
-typedef struct node_iterator_t {
-        // Super class
-        struct iterator_t super;
-
-        // Local members
-        struct node_t*(*next)(struct node_iterator_t* iterator);
-        int(*bind)(struct node_iterator_t* iterator, struct node_list_t* list);
-
-        unsigned int count;
-        unsigned int position;
-
-        struct node_list_t* list;
-        struct node_t* end;
-        struct node_t* begin;
-        struct node_t* value;
-
-} node_iterator_t;
-
-void node_iterator_destroy(node_iterator_t* iterator);
-node_iterator_t* node_iterator_create(node_list_t* list);
-
-struct node_t* node_iterator_next(struct node_iterator_t* iterator);
-int node_iterator_bind(struct node_iterator_t* iterator, struct node_list_t* list);
-
-#endif /* NODE_ITERATOR_H_ */
diff --git a/libcnary/iterator.c b/libcnary/iterator.c
deleted file mode 100644
index 492a8ae..0000000
--- a/libcnary/iterator.c
+++ /dev/null
@@ -1,61 +0,0 @@
-/*
- * iterator.c
- *
- *  Created on: Mar 8, 2011
- *      Author: posixninja
- *
- * Copyright (c) 2011 Joshua Hill. All Rights Reserved.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "list.h"
-#include "object.h"
-#include "iterator.h"
-
-void iterator_destroy(iterator_t* iterator) {
-        if(iterator) {
-                free(iterator);
-        }
-}
-
-iterator_t* iterator_create(list_t* list) {
-        iterator_t* iterator = (iterator_t*) malloc(sizeof(iterator_t));
-        if(iterator == NULL) {
-                return NULL;
-        }
-        memset(iterator, '\0', sizeof(iterator_t));
-
-        if(list != NULL) {
-                // Create and bind to list
-
-        } else {
-                // Empty Iterator
-        }
-
-        return iterator;
-}
-
-object_t* iterator_next(iterator_t* iterator) {
-        return NULL;
-}
-
-int iterator_bind(iterator_t* iterator, list_t* list) {
-        return -1;
-}
diff --git a/libcnary/node.c b/libcnary/node.c
index 4b550dd..c24ca7a 100644
--- a/libcnary/node.c
+++ b/libcnary/node.c
@@ -26,7 +26,6 @@
 
 #include "node.h"
 #include "node_list.h"
-#include "node_iterator.h"
 
 void node_destroy(node_t* node) {
         if(!node) return;
@@ -114,7 +113,6 @@ int node_insert(node_t* parent, unsigned int node_index, node_t* child)
 static void _node_debug(node_t* node, unsigned int depth) {
         unsigned int i = 0;
         node_t* current = NULL;
-        node_iterator_t* iter = NULL;
         for(i = 0; i < depth; i++) {
                 printf("\t");
         }
@@ -128,11 +126,9 @@ static void _node_debug(node_t* node, unsigned int depth) {
                 if(node->parent) {
                         printf("NODE\n");
                 }
-                iter = node_iterator_create(node->children);
-                while ((current = iter->next(iter))) {
+                for (current = node_first_child(node); current; current = node_next_sibling(current)) {
                         _node_debug(current, depth+1);
                 }
-                node_iterator_destroy(iter);
         }
 
 }
diff --git a/libcnary/node_iterator.c b/libcnary/node_iterator.c
deleted file mode 100644
index e629b73..0000000
--- a/libcnary/node_iterator.c
+++ /dev/null
@@ -1,80 +0,0 @@
-/*
- * node_iterator.c
- *
- *  Created on: Mar 8, 2011
- *      Author: posixninja
- *
- * Copyright (c) 2011 Joshua Hill. All Rights Reserved.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "node.h"
-#include "node_list.h"
-#include "node_iterator.h"
-
-void node_iterator_destroy(node_iterator_t* iterator) {
-        if(iterator) {
-                free(iterator);
-        }
-}
-
-node_iterator_t* node_iterator_create(node_list_t* list) {
-        node_iterator_t* iterator = (node_iterator_t*) malloc(sizeof(node_iterator_t));
-        if(iterator == NULL) {
-                return NULL;
-        }
-        memset(iterator, '\0', sizeof(node_iterator_t));
-
-        iterator->count = 0;
-        iterator->position = 0;
-
-        iterator->end = NULL;
-        iterator->begin = NULL;
-        iterator->value = NULL;
-
-        iterator->list = NULL;
-        iterator->next = node_iterator_next;
-        iterator->bind = node_iterator_bind;
-
-
-        if(list != NULL) {
-                iterator->bind(iterator, list);
-        }
-
-        return iterator;
-}
-
-node_t* node_iterator_next(node_iterator_t* iterator) {
-        node_t* node = iterator->value;
-        if (node) {
-                iterator->value = node->next;
-        }
-        iterator->position++;
-        return node;
-}
-
-int node_iterator_bind(node_iterator_t* iterator, node_list_t* list) {
-        iterator->position = 0;
-        iterator->end = list->end;
-        iterator->count = list->count;
-        iterator->begin = list->begin;
-        iterator->value = list->begin;
-        return 0;
-}