status_t
Volume::Initialize(const char* name)
{
fName = strdup(name);
if (fName == NULL)
return B_NO_MEMORY;
status_t error = fBlockAllocator->Initialize();
if (error != B_OK)
return error;
// create the root directory
error = CreateDirectory(S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH,
fRootDirectory);
if (error != B_OK)
return error;
error = fRootDirectory->Flush();
if (error != B_OK)
return error;
// write the super block
Block block;
if (!block.GetZero(this, kCheckSumFSSuperBlockOffset / B_PAGE_SIZE))
return B_ERROR;
SuperBlock* superBlock = (SuperBlock*)block.Data();
superBlock->Initialize(this);
block.Put();
return block_cache_sync(fBlockCache);
}
status_t
DirEntryTree::_InsertEntrySplitBlock(int32 level, LevelInfo& info,
size_t needed, Transaction& transaction, Block& newBlock,
int32& _splitIndex)
{
int32 splitIndex = info.entryBlock.FindSplitIndex(info.index,
needed);
FUNCTION("level: %" B_PRId32 ", size needed: %" B_PRIuSIZE ", split index: "
"%" B_PRId32 "/%" B_PRId32 "\n", level, needed, splitIndex,
info.entryBlock.EntryCount());
// allocate a new block
AllocatedBlock allocatedBlock(
fDirectory->GetVolume()->GetBlockAllocator(), transaction);
status_t error = allocatedBlock.Allocate(fDirectory->BlockIndex());
if (error != B_OK)
RETURN_ERROR(error);
fDirectory->SetSize(fDirectory->Size() + B_PAGE_SIZE);
if (!newBlock.GetZero(fDirectory->GetVolume(), allocatedBlock.Index(),
transaction)) {
RETURN_ERROR(B_ERROR);
}
allocatedBlock.Detach();
// split the old block
DirEntryBlock newEntryBlock(
(checksumfs_dir_entry_block*)newBlock.Data(), B_PAGE_SIZE);
ASSERT(newEntryBlock.Check());
info.entryBlock.SplitBlock(splitIndex, newEntryBlock);
PRINT(" -> new block: %" B_PRIu64 "\n", newBlock.Index());
_splitIndex = splitIndex;
return B_OK;
}
