Security-222.tar.gz

[apple/security.git] / cdsa / cdsa_utilities / streams.cpp

diff --git a/cdsa/cdsa_utilities/streams.cpp b/cdsa/cdsa_utilities/streams.cpp
deleted file mode 100644 (file)
index cff6669..0000000
--- a/cdsa/cdsa_utilities/streams.cpp
+++ /dev/null
@@ -1,138 +0,0 @@
-/*
- * Copyright (c) 2000-2001 Apple Computer, Inc. All Rights Reserved.
- * 
- * The contents of this file constitute Original Code as defined in and are
- * subject to the Apple Public Source License Version 1.2 (the 'License').
- * You may not use this file except in compliance with the License. Please obtain
- * a copy of the License at http://www.apple.com/publicsource and read it before
- * using this file.
- * 
- * This Original Code and all software distributed under the License are
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS
- * OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, INCLUDING WITHOUT
- * LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
- * PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. Please see the License for the
- * specific language governing rights and limitations under the License.
- */
-
-
-//
-// streams.h - lightweight source and sink objects
-//
-#include "streams.h"
-#include <Security/memutils.h>
-
-
-namespace Security {
-
-
-//
-// Source and Sink abstract superclasses
-//
-Source::State Source::state() const
-{
-    return mState;
-}
-
-size_t Source::getSize()
-{
-    return unknownSize;
-}
-
-void Sink::setSize(size_t)
-{
-    // ignored
-}
-
-
-//
-// Null sources and sinks
-//
-void NullSource::produce(void *, size_t &length)
-{
-    length = 0;
-}
-
-Source::State NullSource::state() const
-{
-    return endOfData;
-}
-
-void NullSink::consume(const void *, size_t)
-{
-    // ignore the data
-}
-
-
-//
-// File sources and sinks
-//
-void FileSource::produce(void *data, size_t &length)
-{
-    if ((length = read(data, length)) == 0)
-        mState = endOfData;
-}
-
-size_t FileSource::getSize()
-{
-    return fileSize();
-}
-
-
-void FileSink::consume(const void *data, size_t length)
-{
-       write(data, length);
-}
-
-
-//
-// Memory sources
-//
-void MemorySource::produce(void *data, size_t &length)
-{
-    if (mRemaining < length)
-        length = mRemaining;
-    memcpy(data, mData, length);
-    mData = LowLevelMemoryUtilities::increment(mData, length);
-    mRemaining -= length;
-}
-
-size_t MemorySource::getSize()
-{
-    return mRemaining;
-}
-
-Source::State MemorySource::state() const
-{
-    return mRemaining ? producing : endOfData;
-}
-
-
-//
-// Memory sinks
-//
-void MemorySink::consume(const void *data, size_t length)
-{
-    if (mSize + length > mMax)
-        grow(mSize * 3 / 2);
-    assert(mSize + length <= mMax);
-    memcpy(((char *)mBuffer) + mSize, data, length);
-    mSize += length;
-}
-
-void MemorySink::setSize(size_t expectedSize)
-{
-    grow(expectedSize);
-}
-
-void MemorySink::grow(size_t newSize)
-{
-    if (void *p = realloc(mBuffer, newSize)) {
-        mBuffer = p;
-        mMax = newSize;
-    } else
-        UnixError::throwMe();
-}
-
-
-}      // end namespace Security