48 lines
1.5 KiB
C++
48 lines
1.5 KiB
C++
#include "FileDataReader.h"
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FileDataReader::FileDataReader(const uint8_t* pduBuf, size_t maxSize, FileDataInfo& info)
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: PduHeaderReader(pduBuf, maxSize), info(info) {}
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ReturnValue_t FileDataReader::parseData() {
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ReturnValue_t result = PduHeaderReader::parseData();
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if (result != returnvalue::OK) {
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return result;
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}
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size_t currentIdx = PduHeaderReader::getHeaderSize();
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const uint8_t* buf = pointers.rawPtr + currentIdx;
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size_t remSize = PduHeaderReader::getWholePduSize() - currentIdx;
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if (remSize < 1) {
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return SerializeIF::STREAM_TOO_SHORT;
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}
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if (hasSegmentMetadataFlag()) {
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info.setSegmentMetadataFlag(true);
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info.setRecordContinuationState(static_cast<cfdp::RecordContinuationState>((*buf >> 6) & 0b11));
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size_t segmentMetadataLen = *buf & 0b00111111;
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info.setSegmentMetadataLen(segmentMetadataLen);
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if (remSize < segmentMetadataLen + 1) {
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return SerializeIF::STREAM_TOO_SHORT;
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}
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if (segmentMetadataLen > 0) {
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buf += 1;
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remSize -= 1;
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info.setSegmentMetadata(buf);
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buf += segmentMetadataLen;
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remSize -= segmentMetadataLen;
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}
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}
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result = info.getOffset().deSerialize(&buf, &remSize, this->getEndianness());
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if (result != returnvalue::OK) {
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return result;
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}
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if (remSize > 0) {
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info.setFileData(buf, remSize);
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}
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return returnvalue::OK;
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}
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SerializeIF::Endianness FileDataReader::getEndianness() const { return endianness; }
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void FileDataReader::setEndianness(SerializeIF::Endianness endianness_) {
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endianness = endianness_;
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}
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