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Diffstat (limited to 'vmime-master/src/vmime/utility/inputStreamByteBufferAdapter.cpp')
-rw-r--r-- | vmime-master/src/vmime/utility/inputStreamByteBufferAdapter.cpp | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/vmime-master/src/vmime/utility/inputStreamByteBufferAdapter.cpp b/vmime-master/src/vmime/utility/inputStreamByteBufferAdapter.cpp new file mode 100644 index 0000000..927215c --- /dev/null +++ b/vmime-master/src/vmime/utility/inputStreamByteBufferAdapter.cpp @@ -0,0 +1,104 @@ +// +// VMime library (http://www.vmime.org) +// Copyright (C) 2002 Vincent Richard <vincent@vmime.org> +// +// This program is free software; you can redistribute it and/or +// modify it under the terms of the GNU General Public License as +// published by the Free Software Foundation; either version 3 of +// the License, or (at your option) any later version. +// +// This program is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +// General Public License for more details. +// +// You should have received a copy of the GNU General Public License along +// with this program; if not, write to the Free Software Foundation, Inc., +// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. +// +// Linking this library statically or dynamically with other modules is making +// a combined work based on this library. Thus, the terms and conditions of +// the GNU General Public License cover the whole combination. +// + +#include "vmime/utility/inputStreamByteBufferAdapter.hpp" + + +namespace vmime { +namespace utility { + + +inputStreamByteBufferAdapter::inputStreamByteBufferAdapter(const byte_t* buffer, const size_t length) + : m_buffer(buffer), + m_length(length), + m_pos(0) { + +} + + +bool inputStreamByteBufferAdapter::eof() const { + + return m_pos >= m_length; +} + + +void inputStreamByteBufferAdapter::reset() { + + m_pos = 0; +} + + +size_t inputStreamByteBufferAdapter::read(byte_t* const data, const size_t count) { + + const size_t remaining = m_length - m_pos; + + if (remaining < count) { + + std::copy(m_buffer + m_pos, m_buffer + m_pos + remaining, data); + m_pos += remaining; + + return remaining; + + } else { + + std::copy(m_buffer + m_pos, m_buffer + m_pos + count, data); + m_pos += count; + + return count; + } +} + + +size_t inputStreamByteBufferAdapter::skip(const size_t count) { + + const size_t remaining = m_length - m_pos; + + if (remaining < count) { + + m_pos += remaining; + return remaining; + + } else { + + m_pos += count; + return count; + } +} + + +size_t inputStreamByteBufferAdapter::getPosition() const { + + return m_pos; +} + + +void inputStreamByteBufferAdapter::seek(const size_t pos) { + + if (pos <= m_length) { + m_pos = pos; + } +} + + +} // utility +} // vmime |