fuse_file_handle.h
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上传日期:2018-01-08
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文件大小:1k
- /**
- * 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.
- */
- #ifndef __FUSE_FILE_HANDLE_H__
- #define __FUSE_FILE_HANDLE_H__
- #include <hdfs.h>
- #include <pthread.h>
- /**
- *
- * dfs_fh_struct is passed around for open files. Fuse provides a hook (the context)
- * for storing file specific data.
- *
- * 2 Types of information:
- * a) a read buffer for performance reasons since fuse is typically called on 4K chunks only
- * b) the hdfs fs handle
- *
- */
- typedef struct dfs_fh_struct {
- hdfsFile hdfsFH;
- char *buf;
- tSize bufferSize; //what is the size of the buffer we have
- off_t buffersStartOffset; //where the buffer starts in the file
- hdfsFS fs; // for reads/writes need to access as the real user
- pthread_mutex_t mutex;
- } dfs_fh;
- #endif