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xpcom/io/nsLocalFileUnix.h@97036ab72558 (annotated)

xpcom/io/nsLocalFileUnix.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: 8; 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	/*
michael@0	7	* Implementation of nsIFile for ``Unixy'' systems.
michael@0	8	*/
michael@0	9
michael@0	10	#ifndef _nsLocalFileUNIX_H_
michael@0	11	#define _nsLocalFileUNIX_H_
michael@0	12
michael@0	13	#include <sys/stat.h>
michael@0	14	#include <sys/types.h>
michael@0	15	#include <unistd.h>
michael@0	16
michael@0	17	#include "nscore.h"
michael@0	18	#include "nsString.h"
michael@0	19	#include "nsReadableUtils.h"
michael@0	20	#include "nsIHashable.h"
michael@0	21	#include "nsIClassInfoImpl.h"
michael@0	22	#include "mozilla/Attributes.h"
michael@0	23	#ifdef MOZ_WIDGET_COCOA
michael@0	24	#include "nsILocalFileMac.h"
michael@0	25	#endif
michael@0	26
michael@0	27	/**
michael@0	28	* we need these for statfs()
michael@0	29	*/
michael@0	30	#ifdef HAVE_SYS_STATVFS_H
michael@0	31	#if defined(__osf__) && defined(__DECCXX)
michael@0	32	extern "C" int statvfs(const char *, struct statvfs *);
michael@0	33	#endif
michael@0	34	#include <sys/statvfs.h>
michael@0	35	#endif
michael@0	36
michael@0	37	#ifdef HAVE_SYS_STATFS_H
michael@0	38	#include <sys/statfs.h>
michael@0	39	#endif
michael@0	40
michael@0	41	#ifdef HAVE_SYS_VFS_H
michael@0	42	#include <sys/vfs.h>
michael@0	43	#endif
michael@0	44
michael@0	45	#ifdef HAVE_SYS_MOUNT_H
michael@0	46	#include <sys/param.h>
michael@0	47	#include <sys/mount.h>
michael@0	48	#endif
michael@0	49
michael@0	50	#if defined(HAVE_STATVFS64) && (!defined(LINUX) && !defined(__osf__))
michael@0	51	#define STATFS statvfs64
michael@0	52	#define F_BSIZE f_frsize
michael@0	53	#elif defined(HAVE_STATVFS) && (!defined(LINUX) && !defined(__osf__))
michael@0	54	#define STATFS statvfs
michael@0	55	#define F_BSIZE f_frsize
michael@0	56	#elif defined(HAVE_STATFS64)
michael@0	57	#define STATFS statfs64
michael@0	58	#define F_BSIZE f_bsize
michael@0	59	#elif defined(HAVE_STATFS)
michael@0	60	#define STATFS statfs
michael@0	61	#define F_BSIZE f_bsize
michael@0	62	#endif
michael@0	63
michael@0	64	// stat64 and lstat64 are deprecated on OS X. Normal stat and lstat are
michael@0	65	// 64-bit by default on OS X 10.6+.
michael@0	66	#if defined(HAVE_STAT64) && defined(HAVE_LSTAT64) && !defined(XP_MACOSX)
michael@0	67	#if defined (AIX)
michael@0	68	#if defined STAT
michael@0	69	#undef STAT
michael@0	70	#endif
michael@0	71	#endif
michael@0	72	#define STAT stat64
michael@0	73	#define LSTAT lstat64
michael@0	74	#define HAVE_STATS64 1
michael@0	75	#else
michael@0	76	#define STAT stat
michael@0	77	#define LSTAT lstat
michael@0	78	#endif
michael@0	79
michael@0	80
michael@0	81	class nsLocalFile MOZ_FINAL :
michael@0	82	#ifdef MOZ_WIDGET_COCOA
michael@0	83	public nsILocalFileMac,
michael@0	84	#else
michael@0	85	public nsILocalFile,
michael@0	86	#endif
michael@0	87	public nsIHashable
michael@0	88	{
michael@0	89	public:
michael@0	90	NS_DEFINE_STATIC_CID_ACCESSOR(NS_LOCAL_FILE_CID)
michael@0	91
michael@0	92	nsLocalFile();
michael@0	93
michael@0	94	static nsresult nsLocalFileConstructor(nsISupports* outer, const nsIID& aIID, void* *aInstancePtr);
michael@0	95
michael@0	96	NS_DECL_THREADSAFE_ISUPPORTS
michael@0	97	NS_DECL_NSIFILE
michael@0	98	NS_DECL_NSILOCALFILE
michael@0	99	#ifdef MOZ_WIDGET_COCOA
michael@0	100	NS_DECL_NSILOCALFILEMAC
michael@0	101	#endif
michael@0	102	NS_DECL_NSIHASHABLE
michael@0	103
michael@0	104	public:
michael@0	105	static void GlobalInit();
michael@0	106	static void GlobalShutdown();
michael@0	107
michael@0	108	private:
michael@0	109	nsLocalFile(const nsLocalFile& other);
michael@0	110	~nsLocalFile() {}
michael@0	111
michael@0	112	protected:
michael@0	113	// This stat cache holds the *last stat* - it does not invalidate.
michael@0	114	// Call "FillStatCache" whenever you want to stat our file.
michael@0	115	struct STAT mCachedStat;
michael@0	116	nsCString mPath;
michael@0	117
michael@0	118	void LocateNativeLeafName(nsACString::const_iterator &,
michael@0	119	nsACString::const_iterator &);
michael@0	120
michael@0	121	nsresult CopyDirectoryTo(nsIFile *newParent);
michael@0	122	nsresult CreateAllAncestors(uint32_t permissions);
michael@0	123	nsresult GetNativeTargetPathName(nsIFile *newParent,
michael@0	124	const nsACString &newName,
michael@0	125	nsACString &_retval);
michael@0	126
michael@0	127	bool FillStatCache();
michael@0	128
michael@0	129	nsresult CreateAndKeepOpen(uint32_t type, int flags,
michael@0	130	uint32_t permissions, PRFileDesc **_retval);
michael@0	131	};
michael@0	132
michael@0	133	#endif /* _nsLocalFileUNIX_H_ */