X-Git-Url: https://git.saurik.com/apple/security.git/blobdiff_plain/84aacf34eae6543be9f0280b2015385f91e5c2c6..b54c578e17e9bcbd74aa30ea75e25e955b9a6205:/OSX/libsecurity_utilities/lib/streams.cpp diff --git a/OSX/libsecurity_utilities/lib/streams.cpp b/OSX/libsecurity_utilities/lib/streams.cpp deleted file mode 100644 index 2a37b98c..00000000 --- a/OSX/libsecurity_utilities/lib/streams.cpp +++ /dev/null @@ -1,144 +0,0 @@ -/* - * Copyright (c) 2000-2001,2003-2004,2011,2014 Apple Inc. All Rights Reserved. - * - * @APPLE_LICENSE_HEADER_START@ - * - * This file contains Original Code and/or Modifications of Original Code - * as defined in and that are subject to the Apple Public Source License - * Version 2.0 (the 'License'). You may not use this file except in - * compliance with the License. Please obtain a copy of the License at - * http://www.opensource.apple.com/apsl/ and read it before using this - * file. - * - * The 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. - * - * @APPLE_LICENSE_HEADER_END@ - */ - - -// -// streams.h - lightweight source and sink objects -// -#include "streams.h" -#include - - -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