88 lines
1.9 KiB
C++
88 lines
1.9 KiB
C++
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#include <vanetza/common/archives.hpp>
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namespace vanetza
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{
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InputArchive::InputArchive(InputStream& is) :
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m_stream_buffer(is.rdbuf())
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{
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}
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InputArchive::InputArchive(StreamBuffer& buf) :
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m_stream_buffer(&buf)
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{
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}
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void InputArchive::load_binary(unsigned char* data, std::size_t len)
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{
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load_binary(reinterpret_cast<char*>(data), len);
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}
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void InputArchive::load_binary(char* data, std::size_t len)
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{
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std::size_t read_bytes = m_stream_buffer->sgetn(data, len);
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if (read_bytes != len) {
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fail(ErrorCode::IncompleteData);
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throw Exception("incomplete read");
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}
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}
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char InputArchive::peek_byte()
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{
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auto got = m_stream_buffer->sgetc();
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if (got == StreamBuffer::traits_type::eof()) {
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fail(ErrorCode::IncompleteData);
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throw Exception("impossible peek at end of stream");
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} else {
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return StreamBuffer::traits_type::to_char_type(got);
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}
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}
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bool InputArchive::is_good() const
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{
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return m_error_code == ErrorCode::Ok;
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}
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InputArchive::ErrorCode InputArchive::error_code() const
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{
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return m_error_code;
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}
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void InputArchive::fail(ErrorCode error_code)
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{
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// do not overwrite prior error code except "ok"
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if (m_error_code == ErrorCode::Ok) {
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m_error_code = error_code;
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}
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}
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std::size_t InputArchive::remaining_bytes()
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{
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return m_stream_buffer->in_avail();
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}
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OutputArchive::OutputArchive(OutputStream& os) :
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m_stream_buffer(os.rdbuf())
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{
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}
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OutputArchive::OutputArchive(StreamBuffer& buf) :
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m_stream_buffer(&buf)
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{
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}
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void OutputArchive::save_binary(const unsigned char* data, std::size_t len)
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{
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save_binary(reinterpret_cast<const char*>(data), len);
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}
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void OutputArchive::save_binary(const char* data, std::size_t len)
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{
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std::size_t written_bytes = m_stream_buffer->sputn(data, len);
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if (written_bytes != len) {
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throw Exception("incomplete write");
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}
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}
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} // namespace vanetza
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