mirror of
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157 lines
6.4 KiB
C++
157 lines
6.4 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: NPL 1.1/GPL 2.0/LGPL 2.1
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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 1.1 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the NPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the NPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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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 "nsISeekableStream.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_IOPENFILE_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 nsIOpenFile
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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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NS_DEFINE_STATIC_IID_ACCESSOR(NS_IOPENFILE_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 nsIOpenFile
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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 nsISeekableStream
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{
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public:
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NS_DEFINE_STATIC_IID_ACCESSOR(NS_IRANDOMACCESS_IID)
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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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#ifndef NO_XPCOM_FILE_STREAMS // hack to work around duplicate class definitions in here
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// and mozilla/netwerks/base/nsIFileStreams.idl
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/* a6cf90e6-15b3-11d2-932e-00805f8add32 */
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#define NS_IFILESPECINPUTSTREAM_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 nsIFileSpecInputStream
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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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NS_DEFINE_STATIC_IID_ACCESSOR(NS_IFILESPECINPUTSTREAM_IID)
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}; // class nsIFileSpecInputStream
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/* a6cf90e7-15b3-11d2-932e-00805f8add32 */
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#define NS_IFILESPECOUTPUTSTREAM_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 nsIFileSpecOutputStream
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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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NS_DEFINE_STATIC_IID_ACCESSOR(NS_IFILESPECOUTPUTSTREAM_IID)
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}; // class nsIFileSpecOutputStream
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#endif // NO_XPCOM_FILE_STREAMS
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//----------------------------------------------------------------------------------------
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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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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_COM 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 /* nsIFileSpecStream_h___ */
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