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106 строки
3.0 KiB
Plaintext
106 строки
3.0 KiB
Plaintext
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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* The contents of this file are subject to the Netscape Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is Mozilla Communicator client code, released
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* March 31, 1998.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998-1999 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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*/
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#include "nsIInputStream.idl"
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#include "nsrootidl.idl"
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/**
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* This interface allows consumption of primitive data types from a "binary
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* stream" containing untagged, big-endian binary data, i.e. as produced by an
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* implementation of nsIBinaryOutputStream. This might be used, for example,
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* to implement network protocols or to read from architecture-neutral disk
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* files, i.e. ones that can be read and written by both big-endian and
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* little-endian platforms.
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*
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* @See nsIBinaryOutputStream
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*/
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[scriptable, uuid(7b456cb0-8772-11d3-90cf-0040056a906e)]
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interface nsIBinaryInputStream : nsIInputStream {
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void setInputStream(in nsIInputStream aInputStream);
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PRBool readBoolean();
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PRUint8 read8();
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PRUint16 read16();
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PRUint32 read32();
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PRUint64 read64();
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float readFloat();
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double readDouble();
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/**
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* Read a NUL-terminated 8-bit char* string from a binary stream.
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*/
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string readStringZ();
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/**
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* Read a NUL-terminated 16-bit PRUnichar* string from a binary stream.
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*/
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wstring readWStringZ();
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/**
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* Read a NUL-terminated UTF8-encoded string from a binary stream, producing
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* a NUL-terminated 16-bit PRUnichar* string argument as a result.
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*/
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wstring readUtf8Z();
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/**
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* Read an opaque byte array from a binary stream.
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*/
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void readBytes([size_is(aLength)] out string aString, in PRUint32 aLength);
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};
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%{C++
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NS_COM nsresult
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NS_NewBinaryInputStream(nsIBinaryInputStream* *aResult, nsIInputStream* aSrcStream);
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inline nsresult
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NS_ReadOptionalStringZ(nsIBinaryInputStream* aStream, char* *aResult)
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{
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PRBool nonnull;
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nsresult rv = aStream->ReadBoolean(&nonnull);
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if (NS_SUCCEEDED(rv)) {
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if (nonnull)
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rv = aStream->ReadStringZ(aResult);
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else
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*aResult = nsnull;
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}
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return rv;
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}
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inline nsresult
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NS_ReadOptionalWStringZ(nsIBinaryInputStream* aStream, PRUnichar* *aResult)
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{
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PRBool nonnull;
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nsresult rv = aStream->ReadBoolean(&nonnull);
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if (NS_SUCCEEDED(rv)) {
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if (nonnull)
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rv = aStream->ReadWStringZ(aResult);
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else
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*aResult = nsnull;
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}
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return rv;
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}
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%}
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