status_t
SymLink::WriteSymLink(const char* buffer, size_t toWrite,
Transaction& transaction)
{
uint64 size = Size();
if (size > kMaxSymLinkSize)
RETURN_ERROR(B_BAD_DATA);
if (toWrite > kMaxSymLinkSize)
RETURN_ERROR(B_NAME_TOO_LONG);
if (toWrite == 0) {
SetSize(0);
return B_OK;
}
Block block;
if (!block.GetWritable(GetVolume(), BlockIndex(), transaction))
return B_ERROR;
char* data = (char*)block.Data() + kSymLinkDataOffset;
memcpy(data, buffer, toWrite);
SetSize(toWrite);
return B_OK;
}
status_t
DirEntryTree::_InitWritable(Transaction& transaction)
{
if (!fRootBlock.GetWritable(fDirectory->GetVolume(),
fDirectory->BlockIndex(), transaction)) {
RETURN_ERROR(B_ERROR);
}
return _InitCommon();
}
status_t
Node::Flush()
{
if (!fNodeDataDirty)
return B_OK;
Block block;
if (!block.GetWritable(fVolume, fBlockIndex))
return B_ERROR;
memcpy(block.Data(), &fNode, sizeof(fNode));
fNodeDataDirty = false;
return B_OK;
}
