/* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
parcel Lucy;
/** File system FileHandle.
*/
class Lucy::Store::FSFileHandle cnick FSFH
inherits Lucy::Store::FileHandle {
int fd;
void *win_fhandle;
void *win_maphandle;
int64_t len;
int64_t page_size;
char *buf;
/** Return a new FSFileHandle, or set Err_error and return NULL if
* something goes wrong.
*
* @param path Filepath.
* @param flags FileHandle constructor flags.
*/
inert incremented nullable FSFileHandle*
open(const CharBuf *path = NULL, uint32_t flags);
inert nullable FSFileHandle*
do_open(FSFileHandle *self, const CharBuf *path = NULL, uint32_t flags);
bool_t
Window(FSFileHandle *self, FileWindow *window, int64_t offset, int64_t len);
bool_t
Release_Window(FSFileHandle *self, FileWindow *window);
bool_t
Read(FSFileHandle *self, char *dest, int64_t offset, size_t len);
bool_t
Write(FSFileHandle *self, const void *data, size_t len);
int64_t
Length(FSFileHandle *self);
bool_t
Close(FSFileHandle *self);
}