*
* Copyright 2001-2004, Axel Dörfler, axeld@pinc-software.de.
* This file may be used under the terms of the MIT License.
*
* Adjusted by Ingo Weinhold <bonefish@cs.tu-berlin.de> for usage in RAM FS.
*/
#ifndef QUERY_H
#define QUERY_H
#include <OS.h>
#include <SupportDefs.h>
#include <fs_query.h>
#include <util/DoublyLinkedList.h>
#include "Index.h"
#include "ramfs.h"
namespace QueryParser {
template<typename QueryPolicy> class Query;
};
class Node;
class Volume;
class Query : public DoublyLinkedListLinkImpl<Query> {
public:
~Query();
static status_t Create(Volume* volume, const char* queryString,
uint32 flags, port_id port, uint32 token,
Query*& _query);
status_t Rewind();
status_t GetNextEntry(struct dirent* entry, size_t size);
void LiveUpdate(Entry* entry, Node* node,
const char* attribute, int32 type,
const void* oldKey, size_t oldLength,
const void* newKey, size_t newLength);
private:
struct QueryPolicy;
friend struct QueryPolicy;
typedef QueryParser::Query<QueryPolicy> QueryImpl;
private:
Query(Volume* volume);
status_t _Init(const char* queryString, uint32 flags,
port_id port, uint32 token);
private:
Volume* fVolume;
QueryImpl* fImpl;
};
#endif
