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/*
* Copyright (c) 2010-2013 Isode Limited.
* All rights reserved.
* See the COPYING file for more information.
*/
#include <boost/filesystem/fstream.hpp>
#include <cassert>
#include <boost/smart_ptr/make_shared.hpp>
#include <boost/numeric/conversion/cast.hpp>
#include <Swiften/FileTransfer/FileReadBytestream.h>
#include <Swiften/Base/ByteArray.h>
namespace Swift {
FileReadBytestream::FileReadBytestream(const boost::filesystem::path& file) : file(file), stream(NULL) {
}
FileReadBytestream::~FileReadBytestream() {
if (stream) {
stream->close();
stream = NULL;
}
}
boost::shared_ptr<ByteArray> FileReadBytestream::read(size_t size) {
if (!stream) {
stream = new boost::filesystem::ifstream(file, std::ios_base::in|std::ios_base::binary);
}
boost::shared_ptr<ByteArray> result = boost::make_shared<ByteArray>();
result->resize(size);
assert(stream->good());
stream->read(reinterpret_cast<char*>(vecptr(*result)), boost::numeric_cast<std::streamsize>(size));
result->resize(boost::numeric_cast<size_t>(stream->gcount()));
onRead(*result);
return result;
}
bool FileReadBytestream::isFinished() const {
return stream && !stream->good();
}
}
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