зеркало из https://github.com/mozilla/gecko-dev.git
146 строки
6.1 KiB
C++
146 строки
6.1 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#ifndef nsIFileStream_h___
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#define nsIFileStream_h___
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#include "nsIInputStream.h"
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#include "nsIOutputStream.h"
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#include "prio.h"
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class nsFileSpec;
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/* a6cf90e8-15b3-11d2-932e-00805f8add32 */
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#define NS_IFILE_IID \
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{ 0xa6cf90e8, 0x15b3, 0x11d2, \
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{0x93, 0x2e, 0x00, 0x80, 0x5f, 0x8a, 0xdd, 0x32} }
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//========================================================================================
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class nsIFile
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// Represents a file, and supports Open.
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//========================================================================================
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: public nsISupports
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{
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public:
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static const nsIID& GetIID() { static nsIID iid = NS_IFILE_IID; return iid; }
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NS_IMETHOD Open(
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const nsFileSpec& inFile,
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int nsprMode,
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PRIntn accessMode) = 0;
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// Note: Open() is only needed after
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// an explicit Close(). All file streams
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// are automatically opened on construction.
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NS_IMETHOD GetIsOpen(PRBool* outOpen) = 0;
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}; // class nsIFile
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/* a6cf90e8-15b3-11d2-932e-00805f8add32 */
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#define NS_IRANDOMACCESS_IID \
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{ 0xa6cf90eb, 0x15b3, 0x11d2, \
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{0x93, 0x2e, 0x00, 0x80, 0x5f, 0x8a, 0xdd, 0x32} }
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//========================================================================================
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class nsIRandomAccessStore
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// Supports Seek, Tell etc.
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//========================================================================================
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: public nsISupports
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{
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public:
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static const nsIID& GetIID() { static nsIID iid = NS_IRANDOMACCESS_IID; return iid; }
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NS_IMETHOD Seek(PRSeekWhence whence, PRInt32 offset) = 0;
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NS_IMETHOD Tell(PRIntn* outWhere) = 0;
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/* "PROTECTED" */
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NS_IMETHOD GetAtEOF(PRBool* outAtEOF) = 0;
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NS_IMETHOD SetAtEOF(PRBool inAtEOF) = 0;
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}; // class nsIRandomAccessStore
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/* a6cf90e6-15b3-11d2-932e-00805f8add32 */
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#define NS_IFILEINPUTSTREAM_IID \
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{ 0xa6cf90e6, 0x15b3, 0x11d2, \
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{0x93, 0x2e, 0x00, 0x80, 0x5f, 0x8a, 0xdd, 0x32} }
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//========================================================================================
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class nsIFileInputStream
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// These are additional file-specific methods that files have, above what
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// nsIInputStream supports. The current implementation supports both
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// interfaces.
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//========================================================================================
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: public nsIInputStream
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{
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public:
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static const nsIID& GetIID() { static nsIID iid = NS_IFILEINPUTSTREAM_IID; return iid; }
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}; // class nsIFileInputStream
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/* a6cf90e7-15b3-11d2-932e-00805f8add32 */
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#define NS_IFILEOUTPUTSTREAM_IID \
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{ 0xa6cf90e7, 0x15b3, 0x11d2, \
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{0x93, 0x2e, 0x00, 0x80, 0x5f, 0x8a, 0xdd, 0x32} }
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//========================================================================================
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class nsIFileOutputStream
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// These are additional file-specific methods that files have, above what
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// nsIOutputStream supports. The current implementation supports both
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// interfaces.
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//========================================================================================
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: public nsIOutputStream
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{
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public:
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static const nsIID& GetIID() { static nsIID iid = NS_IFILEOUTPUTSTREAM_IID; return iid; }
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}; // class nsIFileOutputStream
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//----------------------------------------------------------------------------------------
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extern "C" NS_BASE nsresult NS_NewTypicalInputFileStream(
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nsISupports** aStreamResult,
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const nsFileSpec& inFile
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/*Default nsprMode == PR_RDONLY*/
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/*Default accessmode = 0700 (octal)*/);
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// Factory method to get an nsInputStream from a file, using most common options
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//----------------------------------------------------------------------------------------
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extern "C" NS_BASE nsresult NS_NewOutputConsoleStream(
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nsISupports** aStreamResult);
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// Factory method to get an nsOutputStream to the console.
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//----------------------------------------------------------------------------------------
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extern "C" NS_BASE nsresult NS_NewTypicalOutputFileStream(
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nsISupports** aStreamResult, // will implement all the above interfaces
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const nsFileSpec& inFile
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/*default nsprMode= (PR_WRONLY | PR_CREATE_FILE | PR_TRUNCATE)*/
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/*Default accessMode= 0700 (octal)*/);
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// Factory method to get an nsOutputStream to a file - most common case.
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//----------------------------------------------------------------------------------------
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extern "C" NS_BASE nsresult NS_NewTypicalIOFileStream(
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nsISupports** aStreamResult, // will implement all the above interfaces
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const nsFileSpec& inFile
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/*default nsprMode = (PR_RDWR | PR_CREATE_FILE)*/
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/*Default accessMode = 0700 (octal)*/);
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// Factory method to get an object that implements both nsIInputStream
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// and nsIOutputStream, associated with a single file.
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//----------------------------------------------------------------------------------------
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extern "C" NS_BASE nsresult NS_NewIOFileStream(
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nsISupports** aStreamResult, // will implement all the above interfaces
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const nsFileSpec& inFile,
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PRInt32 nsprMode,
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PRInt32 accessMode);
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// Factory method to get an object that implements both nsIInputStream
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// and nsIOutputStream, associated with a single file.
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#endif /* nsIFileStream_h___ */
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