bool FileSystemRedirect::rename(const Path& a,const Path& b)
{
Path na = _merge(a);
Path nb = _merge(b);
FileSystemRef fsa = mMFS->getFileSystem(na);
FileSystemRef fsb = mMFS->getFileSystem(nb);
if (fsa.getPointer() == fsb.getPointer())
return fsa->rename(na,nb);
return false;
}
bool MountSystem::rename(const Path& from,const Path& to)
{
// Will only rename files on the same filesystem
Path pa = _normalize(from);
Path pb = _normalize(to);
FileSystemRef fsa = _getFileSystemFromList(pa);
FileSystemRef fsb = _getFileSystemFromList(pb);
if (!fsa || !fsb)
return false;
if (fsa.getPointer() != fsb.getPointer())
{
_log(String::ToString("Cannot rename path %s to a different filesystem", from.getFullPath().c_str()));
return false;
}
if (fsa->isReadOnly() || fsb->isReadOnly())
{
_log(String::ToString("Cannot rename path %s; source or target filesystem is read-only", from.getFullPath().c_str()));
return false;
}
return fsa->rename(pa,pb);
}
bool MountSystem::unmount(FileSystemRef fs)
{
if (fs.isNull())
return false;
// iterate back to front in case FS is in list multiple times.
// also check that fs is not null each time since its a strong ref
// so it could be nulled during removal.
bool unmounted = false;
for (S32 i = mMountList.size() - 1; !fs.isNull() && i >= 0; --i)
{
if (mMountList[i].fileSystem.getPointer() == fs.getPointer())
{
mMountList.erase(i);
unmounted = true;
}
}
return unmounted;
}
bool VirtualMountSystem::unmount(FileSystemRef fs)
{
bool unmounted = Parent::unmount(fs);
if (!unmounted)
return false;
// this is a linear time operation, because we have to search every path in all roots
// to remove references to the fs.
// contant time operation can be achieved be using the unmount(string) version, which unmounts all
// filesystems for a given root and so doesn't need to do any searching.
U32 start = Platform::GetPlatform()->getRealMilliseconds();
for (RootToPathFSMap::Iterator riter = mMountMap.begin();
riter != mMountMap.end();
++riter)
{
PathFSMap* rootDict = (*riter).value;
for (PathFSMap::Iterator piter = rootDict->begin();
piter != rootDict->end();
++piter)
{
Vector<FileSystemRef>& plist = (*piter).value;
for (S32 i = plist.size() - 1;
i >= 0;
i--)
{
if (plist[i].getPointer() == fs.getPointer())
plist.erase(i);
}
}
}
if (gVMSVerboseLog)
_log(String::ToString("Unmounted virtual file system in %ums", Platform::GetPlatform()->getRealMilliseconds() - start));
return true;
}
