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68 lines
2.1 KiB
Plaintext
68 lines
2.1 KiB
Plaintext
/* -*- Mode: IDL; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsISupports.idl"
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interface nsIInputStream;
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/**
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* nsIScriptableInputStream provides scriptable access to an nsIInputStream
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* instance.
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*/
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[scriptable, uuid(3fce9015-472a-4080-ac3e-cd875dbe361e)]
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interface nsIScriptableInputStream : nsISupports
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{
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/**
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* Closes the stream.
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*/
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void close();
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/**
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* Wrap the given nsIInputStream with this nsIScriptableInputStream.
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*
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* @param aInputStream parameter providing the stream to wrap
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*/
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void init(in nsIInputStream aInputStream);
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/**
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* Return the number of bytes currently available in the stream
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*
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* @return the number of bytes
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*
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* @throws NS_BASE_STREAM_CLOSED if called after the stream has been closed
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*/
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unsigned long long available();
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/**
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* Read data from the stream.
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*
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* WARNING: If the data contains a null byte, then this method will return
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* a truncated string.
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*
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* @param aCount the maximum number of bytes to read
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*
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* @return the data, which will be an empty string if the stream is at EOF.
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*
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* @throws NS_BASE_STREAM_CLOSED if called after the stream has been closed
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* @throws NS_ERROR_NOT_INITIALIZED if init was not called
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*/
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string read(in unsigned long aCount);
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/**
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* Read data from the stream, including NULL bytes.
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*
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* @param aCount the maximum number of bytes to read.
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*
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* @return the data from the stream, which will be an empty string if EOF
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* has been reached.
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*
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* @throws NS_BASE_STREAM_WOULD_BLOCK if reading from the input stream
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* would block the calling thread (non-blocking mode only).
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* @throws NS_ERROR_FAILURE if there are not enough bytes available to read
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* aCount amount of data.
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*/
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ACString readBytes(in unsigned long aCount);
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};
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