Esempi in C++ (Cpp) per Inode::GetFileSystem

Esempio n. 1

static status_t
nfs4_create(fs_volume* volume, fs_vnode* dir, const char* name, int openMode,
	int perms, void** _cookie, ino_t* _newVnodeID)
{
	FileSystem* fs = reinterpret_cast<FileSystem*>(volume->private_volume);

	OpenFileCookie* cookie = new OpenFileCookie(fs);
	if (cookie == NULL)
		return B_NO_MEMORY;
	*_cookie = cookie;

	VnodeToInode* vti = reinterpret_cast<VnodeToInode*>(dir->private_node);
	TRACE("volume = %p, dir = %" B_PRIi64 ", name = %s, openMode = %d,"	\
		" perms = %d", volume, vti->ID(), name, openMode, perms);

	VnodeToInodeLocker _(vti);
	Inode* inode = vti->Get();
	if (inode == NULL)
		return B_ENTRY_NOT_FOUND;

	MutexLocker createLocker(fs->CreateFileLock());

	OpenDelegationData data;
	status_t result = inode->Create(name, openMode, perms, cookie, &data,
		_newVnodeID);
	if (result != B_OK) {
		delete cookie;
		return result;
	}

	result = get_new_vnode(volume, *_newVnodeID, &vti);
	if (result != B_OK) {
		delete cookie;
		return result;
	}

	VnodeToInodeLocker _child(vti);
	Inode* child = vti->Get();
	if (child == NULL) {
		delete cookie;
		put_vnode(volume, *_newVnodeID);
		return B_ENTRY_NOT_FOUND;
	}

	child->SetOpenState(cookie->fOpenState);

	if (data.fType != OPEN_DELEGATE_NONE) {
		Delegation* delegation
			= new(std::nothrow) Delegation(data, child,
				cookie->fOpenState->fClientID);
		if (delegation != NULL) {
			delegation->fInfo = cookie->fOpenState->fInfo;
			delegation->fFileSystem = child->GetFileSystem();
			child->SetDelegation(delegation);
		}
	}

	TRACE("*cookie = %p, *newVnodeID = %" B_PRIi64, *_cookie, *_newVnodeID);
	return result;
}