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dataLink.c
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dataLink.c
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/*
* This file is part of the PikaPython project.
* http://github.com/pikastech/pikapython
*
* MIT License
*
* Copyright (c) 2021 lyon liang6516@outlook.com
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#include "dataLink.h"
#include "dataArg.h"
#include "dataLinkNode.h"
#include "dataMemory.h"
void _link_deinit_pyload(Link* self, pika_bool is_object);
void link_deinit_ex(Link* self, pika_bool is_object) {
pika_assert(self != NULL);
_link_deinit_pyload(self, is_object);
pikaFree(self, sizeof(Link));
}
void link_deinit(Link* self) {
link_deinit_ex(self, 0);
}
void link_deinit_stack(Link* self) {
_link_deinit_pyload(self, 0);
}
void link_addNode(Link* self, void* content) {
// old first node become new second node
LinkNode* secondNode = self->firstNode;
self->firstNode = content;
// change the first node to new node
arg_setNext((Arg*)content, (Arg*)secondNode);
}
static void _link_removeNode(Link* self,
void* content,
uint8_t is_deinit_node) {
LinkNode* nodeToDelete = NULL;
LinkNode* nodeNow = self->firstNode;
LinkNode* priorNode = NULL;
LinkNode* nextNode;
while (1) {
if (nodeNow == content) {
nodeToDelete = nodeNow;
break;
}
if (nodeNow == NULL) {
// error, node no found
goto __exit;
}
priorNode = nodeNow;
nodeNow = (LinkNode*)arg_getNext((Arg*)nodeNow);
}
nextNode = (LinkNode*)arg_getNext((Arg*)nodeToDelete);
if (nodeToDelete == self->firstNode) {
self->firstNode = (LinkNode*)arg_getNext((Arg*)nodeToDelete);
}
if (NULL == priorNode) {
self->firstNode = nextNode;
goto __exit;
}
arg_setNext((Arg*)priorNode, (Arg*)nextNode);
goto __exit;
// deinit the node
__exit:
if (is_deinit_node) {
pika_assert(NULL != nodeToDelete);
linkNode_deinit(nodeToDelete);
}
return;
}
void link_removeNode(Link* self, void* content) {
_link_removeNode(self, content, 1);
}
void link_removeNode_notDeinitNode(Link* self, void* content) {
_link_removeNode(self, content, 0);
}
int32_t link_getSize(Link* self) {
LinkNode* NowNode;
int32_t size = 0;
NowNode = self->firstNode;
while (NULL != NowNode) {
size++;
NowNode = (LinkNode*)arg_getNext((Arg*)NowNode);
}
return size;
}
void link_init(Link* self, void* args) {
self->firstNode = NULL;
}
Link* New_link(void* args) {
Link* self = pikaMalloc(sizeof(Link));
link_init(self, args);
return self;
}