drinkingtea/nostalgia
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[ox/fs] Fix extraneous alloc and update rootInode in compact

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This commit is contained in:
Gary Talent 2019-07-17 20:43:14 -05:00
parent dc03e01cf8
commit 0efe94db45
1 changed files with 37 additions and 23 deletions
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60
deps/ox/src/ox/fs/filestore/filestoretemplate.hpp vendored
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@ -112,7 +112,7 @@ class FileStoreTemplate {
[[nodiscard]] ValErr<StatInfo> stat(InodeId_t id);
void resize();
[[nodiscard]] ox::Error resize();
[[nodiscard]] ox::Error resize(std::size_t size, void *newBuff = nullptr);
@ -277,6 +277,7 @@ Error FileStoreTemplate<size_t>::write(InodeId_t id, void *data, FsSize_t dataSi
dest->fileType = fileType;
auto destData = m_buffer->template dataOf<uint8_t>(dest);
if (destData.valid()) {
oxAssert(destData.size() == dataSize, "Allocation size does not match data.");
// write data if any was provided
if (data != nullptr) {
ox_memcpy(destData, data, dest->size());
@ -293,7 +294,6 @@ Error FileStoreTemplate<size_t>::write(InodeId_t id, void *data, FsSize_t dataSi
oxTrace("ox::fs::FileStoreTemplate::write") << "Initializing root inode:" << dest->id << "( offset:" << dest.offset()
<< ", data size:" << destData.size() << ")";
fsData->rootNode = dest.offset();
m_buffer->malloc(dataSize);
oxTrace("ox::fs::FileStoreTemplate::write") << "Root inode:" << dest->id;
return OxError(0);
}
@ -302,7 +302,7 @@ Error FileStoreTemplate<size_t>::write(InodeId_t id, void *data, FsSize_t dataSi
}
}
}
m_buffer->free(dest);
oxReturnError(m_buffer->free(dest));
}
return OxError(1);
}
@ -386,8 +386,8 @@ Error FileStoreTemplate<size_t>::read(InodeId_t id, FsSize_t readStart,
// do byte-by-byte copy to ensure alignment is right when
// copying to final destination
T tmp;
for (size_t i = 0; i < sizeof(T); i++) {
reinterpret_cast<uint8_t*>(&tmp)[i] = *(sub.get() + i);
for (size_t ii = 0; ii < sizeof(T); ii++) {
reinterpret_cast<uint8_t*>(&tmp)[ii] = *(sub.get() + ii);
}
*(data + i) = tmp;
}
@ -412,16 +412,23 @@ const ptrarith::Ptr<uint8_t, std::size_t> FileStoreTemplate<size_t>::read(InodeI
}
template<typename size_t>
void FileStoreTemplate<size_t>::resize() {
ox::Error FileStoreTemplate<size_t>::resize() {
compact();
m_buffSize = size() - available();
oxReturnError(m_buffer->setSize(size() - available()));
oxTrace("ox::fs::FileStoreTemplate::resize") << "resize to:" << size() - available();
oxTrace("ox::fs::FileStoreTemplate::resize") << "resized to:" << m_buffer->size();
return OxError(0);
}
template<typename size_t>
Error FileStoreTemplate<size_t>::resize(std::size_t size, void *newBuff) {
if (m_buffer->size() > size) {
return OxError(1);
}
m_buffSize = size;
if (newBuff) {
m_buffer = reinterpret_cast<Buffer*>(newBuff);
oxReturnError(m_buffer->setSize(size));
}
return OxError(0);
}
@ -491,6 +498,11 @@ void FileStoreTemplate<size_t>::compact() {
<< "Moving Item:" << item->id
<< "from" << oldAddr
<< "to" << item.offset();
// update rootInode if this is it
auto fsData = fileStoreData();
if (fsData && oldAddr == fsData->rootNode) {
fsData->rootNode = item.offset();
}
auto parent = findParent(rootInode(), item);
oxAssert(parent.valid(), "Parent inode not found.");
if (parent.valid()) {
@ -683,24 +695,26 @@ typename FileStoreTemplate<size_t>::ItemPtr FileStoreTemplate<size_t>::findParen
template<typename size_t>
typename FileStoreTemplate<size_t>::ItemPtr FileStoreTemplate<size_t>::find(ItemPtr item, InodeId_t id, int depth) const {
if (depth < 5000) {
if (item.valid()) {
if (id > item->id) {
oxTrace("ox::fs::FileStoreTemplate::find") << "Not a match, searching on" << item->right;
return find(m_buffer->ptr(item->right), id, depth + 1);
} else if (id < item->id) {
oxTrace("ox::fs::FileStoreTemplate::find") << "Not a match, searching on" << item->left;
return find(m_buffer->ptr(item->left), id, depth + 1);
} else if (id == item->id) {
oxTrace("ox::fs::FileStoreTemplate::find") << "Found" << id << "at" << item;
return item;
}
} else {
oxTrace("ox::fs::FileStoreTemplate::find::fail") << "item invalid";
}
} else {
if (depth > 5000) {
oxTrace("ox::fs::FileStoreTemplate::find::fail") << "Excessive recursion depth, stopping before stack overflow. Search for:" << id;
return nullptr;
}
if (!item.valid()) {
oxTrace("ox::fs::FileStoreTemplate::find::fail") << "item invalid";
return nullptr;
}
if (id > item->id) {
oxTrace("ox::fs::FileStoreTemplate::find") << "Not a match, searching on" << item->right;
return find(m_buffer->ptr(item->right), id, depth + 1);
} else if (id < item->id) {
oxTrace("ox::fs::FileStoreTemplate::find") << "Not a match, searching on" << item->left;
return find(m_buffer->ptr(item->left), id, depth + 1);
} else if (id == item->id) {
oxTrace("ox::fs::FileStoreTemplate::find") << "Found" << id << "at" << item;
return item;
}
return nullptr;
}