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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
#include "librbd/crypto/CryptoImageDispatch.h"
namespace librbd {
namespace crypto {
CryptoImageDispatch::CryptoImageDispatch(
uint64_t data_offset) : m_data_offset(data_offset) {
}
void CryptoImageDispatch::remap_extents(
io::Extents& image_extents, io::ImageExtentsMapType type) {
if (type == io::IMAGE_EXTENTS_MAP_TYPE_LOGICAL_TO_PHYSICAL) {
for (auto& extent: image_extents) {
extent.first += m_data_offset;
}
} else if (type == io::IMAGE_EXTENTS_MAP_TYPE_PHYSICAL_TO_LOGICAL) {
for (auto& extent: image_extents) {
extent.first -= m_data_offset;
}
}
}
} // namespace crypto
} // namespace librbd
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