• file
• revisions
• annotate
• diff
• comparison
• raw

dom/xslt/base/txList.h@97036ab72558 (annotated)

dom/xslt/base/txList.h

Tue, 06 Jan 2015 21:39:09 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Tue, 06 Jan 2015 21:39:09 +0100

branch

TOR_BUG_9701

changeset 8

97036ab72558

permissions

-rw-r--r--

Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

michael@0	1	/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
michael@0	2	/* This Source Code Form is subject to the terms of the Mozilla Public
michael@0	3	* License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0	4	* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0	5
michael@0	6	#ifndef TRANSFRMX_LIST_H
michael@0	7	#define TRANSFRMX_LIST_H
michael@0	8
michael@0	9	#include "txCore.h"
michael@0	10
michael@0	11	class txListIterator;
michael@0	12
michael@0	13	/**
michael@0	14	* Represents an ordered list of Object pointers. Modeled after a Java 2 List.
michael@0	15	**/
michael@0	16	class txList : public txObject {
michael@0	17
michael@0	18	friend class txListIterator;
michael@0	19
michael@0	20	public:
michael@0	21
michael@0	22	/**
michael@0	23	* Creates an empty txList
michael@0	24	**/
michael@0	25	txList();
michael@0	26
michael@0	27	/**
michael@0	28	* txList destructor, object references will not be deleted.
michael@0	29	**/
michael@0	30	~txList();
michael@0	31
michael@0	32	/**
michael@0	33	* Returns the number of items in this txList
michael@0	34	**/
michael@0	35	int32_t getLength();
michael@0	36
michael@0	37	/**
michael@0	38	* Returns true if there are no items in this txList
michael@0	39	*/
michael@0	40	inline bool isEmpty()
michael@0	41	{
michael@0	42	return itemCount == 0;
michael@0	43	}
michael@0	44
michael@0	45	/**
michael@0	46	* Adds the given Object to the list
michael@0	47	**/
michael@0	48	nsresult add(void* objPtr);
michael@0	49
michael@0	50	/*
michael@0	51	* Removes all the objects from the list
michael@0	52	*/
michael@0	53	void clear();
michael@0	54
michael@0	55	protected:
michael@0	56
michael@0	57	struct ListItem {
michael@0	58	ListItem* nextItem;
michael@0	59	ListItem* prevItem;
michael@0	60	void* objPtr;
michael@0	61	};
michael@0	62
michael@0	63	/**
michael@0	64	* Removes the given ListItem pointer from the list
michael@0	65	**/
michael@0	66	ListItem* remove(ListItem* sItem);
michael@0	67
michael@0	68	private:
michael@0	69	txList(const txList& aOther); // not implemented
michael@0	70
michael@0	71	ListItem* firstItem;
michael@0	72	ListItem* lastItem;
michael@0	73	int32_t itemCount;
michael@0	74
michael@0	75	nsresult insertAfter(void* objPtr, ListItem* sItem);
michael@0	76	nsresult insertBefore(void* objPtr, ListItem* sItem);
michael@0	77	};
michael@0	78
michael@0	79
michael@0	80
michael@0	81	/**
michael@0	82	* An Iterator for the txList Class
michael@0	83	**/
michael@0	84	class txListIterator {
michael@0	85
michael@0	86	public:
michael@0	87	/**
michael@0	88	* Creates a new txListIterator for the given txList
michael@0	89	* @param list, the txList to create an Iterator for
michael@0	90	**/
michael@0	91	txListIterator(txList* list);
michael@0	92
michael@0	93	/**
michael@0	94	* Adds the Object pointer to the txList pointed to by this txListIterator.
michael@0	95	* The Object pointer is inserted as the next item in the txList
michael@0	96	* based on the current position within the txList
michael@0	97	* @param objPtr the Object pointer to add to the list
michael@0	98	**/
michael@0	99	nsresult addAfter(void* objPtr);
michael@0	100
michael@0	101	/**
michael@0	102	* Adds the Object pointer to the txList pointed to by this txListIterator.
michael@0	103	* The Object pointer is inserted as the previous item in the txList
michael@0	104	* based on the current position within the txList
michael@0	105	* @param objPtr the Object pointer to add to the list
michael@0	106	**/
michael@0	107	nsresult addBefore(void* objPtr);
michael@0	108
michael@0	109	/**
michael@0	110	* Returns true if a successful call to the next() method can be made
michael@0	111	* @return true if a successful call to the next() method can be made,
michael@0	112	* otherwise false
michael@0	113	**/
michael@0	114	bool hasNext();
michael@0	115
michael@0	116	/**
michael@0	117	* Returns the next Object pointer from the list
michael@0	118	**/
michael@0	119	void* next();
michael@0	120
michael@0	121	/**
michael@0	122	* Returns the previous Object pointer from the list
michael@0	123	**/
michael@0	124	void* previous();
michael@0	125
michael@0	126	/**
michael@0	127	* Returns the current Object
michael@0	128	**/
michael@0	129	void* current();
michael@0	130
michael@0	131	/**
michael@0	132	* Removes the Object last returned by the next() or previous() methods;
michael@0	133	* @return the removed Object pointer
michael@0	134	**/
michael@0	135	void* remove();
michael@0	136
michael@0	137	/**
michael@0	138	* Resets the current location within the txList to the beginning of the txList
michael@0	139	**/
michael@0	140	void reset();
michael@0	141
michael@0	142	/**
michael@0	143	* Resets the current location within the txList to the end of the txList
michael@0	144	**/
michael@0	145	void resetToEnd();
michael@0	146
michael@0	147	private:
michael@0	148
michael@0	149	//-- points to the current list item
michael@0	150	txList::ListItem* currentItem;
michael@0	151
michael@0	152	//-- points to the list to iterator over
michael@0	153	txList* list;
michael@0	154
michael@0	155	//-- we've moved off the end of the list
michael@0	156	bool atEndOfList;
michael@0	157	};
michael@0	158
michael@0	159	typedef txList List;
michael@0	160
michael@0	161	#endif