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[ox/ptrarith] Fix Ptr type's derefernce operator

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This commit is contained in:
Gary Talent 2019-11-03 16:44:22 -06:00
parent 693e7324ed
commit c30ef720c4
2 changed files with 41 additions and 33 deletions
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26
deps/ox/src/ox/ptrarith/nodebuffer.hpp vendored
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@ -93,9 +93,10 @@ class __attribute__((packed)) NodeBuffer {
Header m_header; Header m_header;
public: public:
NodeBuffer() = default; NodeBuffer() {
}
NodeBuffer(const NodeBuffer &other); NodeBuffer(const NodeBuffer &other, size_t size);
explicit NodeBuffer(size_t size); explicit NodeBuffer(size_t size);
@ -168,11 +169,13 @@ class __attribute__((packed)) NodeBuffer {
template<typename size_t, typename Item> template<typename size_t, typename Item>
NodeBuffer<size_t, Item>::NodeBuffer(size_t size) { NodeBuffer<size_t, Item>::NodeBuffer(size_t size) {
m_header.size = size; m_header.size = size;
oxTrace("ox::NodeBuffer::constructor") << m_header.firstItem;
} }
template<typename size_t, typename Item> template<typename size_t, typename Item>
NodeBuffer<size_t, Item>::NodeBuffer(const NodeBuffer &other) { NodeBuffer<size_t, Item>::NodeBuffer(const NodeBuffer &other, size_t size) {
ox_memcpy(this, &other, other.size()); oxTrace("ox::ptrarith::NodeBuffer::copy") << "other.m_header.firstItem:" << other.m_header.firstItem;
ox_memcpy(this, &other, size);
} }
template<typename size_t, typename Item> template<typename size_t, typename Item>
@ -270,10 +273,19 @@ typename NodeBuffer<size_t, Item>::ItemPtr NodeBuffer<size_t, Item>::malloc(size
oxTrace("ox::ptrarith::NodeBuffer::malloc") << "No first item, initializing."; oxTrace("ox::ptrarith::NodeBuffer::malloc") << "No first item, initializing.";
m_header.firstItem = sizeof(m_header); m_header.firstItem = sizeof(m_header);
addr = m_header.firstItem; addr = m_header.firstItem;
} else {
oxTrace("ox::ptrarith::NodeBuffer::malloc::fail") << "NodeBuffer is in invalid state.";
return nullptr;
} }
} }
oxTrace("ox::ptrarith::NodeBuffer::malloc") << "buffer size:" << m_header.size
<< ";addr:" << addr
<< ";fullSize:" << fullSize;
auto out = ItemPtr(this, m_header.size, addr, fullSize); auto out = ItemPtr(this, m_header.size, addr, fullSize);
if (out.valid()) { if (!out.valid()) {
oxTrace("ox::ptrarith::NodeBuffer::malloc::fail") << "Unknown";
return nullptr;
}
new (out) Item; new (out) Item;
out->setSize(size); out->setSize(size);
@ -299,10 +311,6 @@ typename NodeBuffer<size_t, Item>::ItemPtr NodeBuffer<size_t, Item>::malloc(size
out->prev = out.offset(); out->prev = out.offset();
} }
m_header.bytesUsed += out.size(); m_header.bytesUsed += out.size();
} else {
oxTrace("ox::ptrarith::NodeBuffer::malloc::fail") << "Unknown";
return nullptr;
}
oxTrace("ox::ptrarith::NodeBuffer::malloc") << "Offset:" << out.offset(); oxTrace("ox::ptrarith::NodeBuffer::malloc") << "Offset:" << out.offset();
return out; return out;
} }

4
deps/ox/src/ox/ptrarith/ptr.hpp vendored
View File

@ -163,14 +163,14 @@ template<typename T, typename size_t, size_t minOffset>
inline const T &Ptr<T, size_t, minOffset>::operator*() const { inline const T &Ptr<T, size_t, minOffset>::operator*() const {
oxAssert(m_validated, "Unvalidated pointer dereference. (ox::fs::Ptr::operator*())"); oxAssert(m_validated, "Unvalidated pointer dereference. (ox::fs::Ptr::operator*())");
oxAssert(valid(), "Invalid pointer dereference. (ox::fs::Ptr::operator*())"); oxAssert(valid(), "Invalid pointer dereference. (ox::fs::Ptr::operator*())");
return *reinterpret_cast<T*>(this); return *reinterpret_cast<T*>(m_dataStart + m_itemOffset);
} }
template<typename T, typename size_t, size_t minOffset> template<typename T, typename size_t, size_t minOffset>
inline T &Ptr<T, size_t, minOffset>::operator*() { inline T &Ptr<T, size_t, minOffset>::operator*() {
oxAssert(m_validated, "Unvalidated pointer dereference. (ox::fs::Ptr::operator*())"); oxAssert(m_validated, "Unvalidated pointer dereference. (ox::fs::Ptr::operator*())");
oxAssert(valid(), "Invalid pointer dereference. (ox::fs::Ptr::operator*())"); oxAssert(valid(), "Invalid pointer dereference. (ox::fs::Ptr::operator*())");
return *reinterpret_cast<T*>(this); return *reinterpret_cast<T*>(m_dataStart + m_itemOffset);
} }
template<typename T, typename size_t, size_t minOffset> template<typename T, typename size_t, size_t minOffset>