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- /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
- * ***** BEGIN LICENSE BLOCK *****
- * Version: MPL 1.1/GPL 2.0/LGPL 2.1
- *
- * The contents of this file are subject to the Mozilla Public License Version
- * 1.1 (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- * http://www.mozilla.org/MPL/
- *
- * Software distributed under the License is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
- * for the specific language governing rights and limitations under the
- * License.
- *
- * The Original Code is Mozilla Communicator client code, released
- * March 31, 1998.
- *
- * The Initial Developer of the Original Code is
- * Netscape Communications Corporation.
- * Portions created by the Initial Developer are Copyright (C) 1998-1999
- * the Initial Developer. All Rights Reserved.
- *
- * Contributor(s):
- *
- * Alternatively, the contents of this file may be used under the terms of
- * either of the GNU General Public License Version 2 or later (the "GPL"),
- * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
- * in which case the provisions of the GPL or the LGPL are applicable instead
- * of those above. If you wish to allow use of your version of this file only
- * under the terms of either the GPL or the LGPL, and not to allow others to
- * use your version of this file under the terms of the MPL, indicate your
- * decision by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL or the LGPL. If you do not delete
- * the provisions above, a recipient may use your version of this file under
- * the terms of any one of the MPL, the GPL or the LGPL.
- *
- * ***** END LICENSE BLOCK ***** */
-
- #include "nsIInputStream.idl"
- #include "nsrootidl.idl"
-
- /**
- * This interface allows consumption of primitive data types from a "binary
- * stream" containing untagged, big-endian binary data, i.e. as produced by an
- * implementation of nsIBinaryOutputStream. This might be used, for example,
- * to implement network protocols or to read from architecture-neutral disk
- * files, i.e. ones that can be read and written by both big-endian and
- * little-endian platforms.
- *
- * @See nsIBinaryOutputStream
- */
-
- [scriptable, uuid(7b456cb0-8772-11d3-90cf-0040056a906e)]
- interface nsIBinaryInputStream : nsIInputStream {
- void setInputStream(in nsIInputStream aInputStream);
-
- PRBool readBoolean();
-
- PRUint8 read8();
- PRUint16 read16();
- PRUint32 read32();
- PRUint64 read64();
-
- float readFloat();
- double readDouble();
-
- /**
- * Read a NUL-terminated 8-bit char* string from a binary stream.
- */
- ACString readCString();
-
- /**
- * Read a NUL-terminated 16-bit PRUnichar* string from a binary stream.
- */
- AString readString();
-
- /**
- * Read an opaque byte array from a binary stream.
- */
- void readBytes(in PRUint32 aLength,
- [size_is(aLength), retval] out string aString);
-
- /**
- * Read an opaque byte array from a binary stream, storing the results
- * as an array of PRUint8s.
- */
- void readByteArray(in PRUint32 aLength,
- [array, size_is(aLength), retval] out PRUint8 aBytes);
- };
-
- %{C++
-
- inline nsresult
- NS_ReadOptionalCString(nsIBinaryInputStream* aStream, nsACString& aResult)
- {
- PRBool nonnull;
- nsresult rv = aStream->ReadBoolean(&nonnull);
- if (NS_SUCCEEDED(rv)) {
- if (nonnull)
- rv = aStream->ReadCString(aResult);
- else
- aResult.Truncate();
- }
- return rv;
- }
-
- inline nsresult
- NS_ReadOptionalString(nsIBinaryInputStream* aStream, nsAString& aResult)
- {
- PRBool nonnull;
- nsresult rv = aStream->ReadBoolean(&nonnull);
- if (NS_SUCCEEDED(rv)) {
- if (nonnull)
- rv = aStream->ReadString(aResult);
- else
- aResult.Truncate();
- }
- return rv;
- }
-
- %}
-