| /** |
| * 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. |
| */ |
| |
| #include "fuse_dfs.h" |
| #include "fuse_impls.h" |
| #include "fuse_file_handle.h" |
| #include "fuse_connect.h" |
| |
| #include <stdlib.h> |
| |
| /** |
| * release a fuse_file_info structure. |
| * |
| * When this function is invoked, there are no more references to our |
| * fuse_file_info structure that exist anywhere. So there is no need for |
| * locking to protect this structure here. |
| * |
| * Another thread could open() the same file, and get a separate, different file |
| * descriptor with a different, separate fuse_file_info structure. In HDFS, |
| * this results in one writer winning and overwriting everything the other |
| * writer has done. |
| */ |
| |
| int dfs_release (const char *path, struct fuse_file_info *fi) { |
| TRACE1("release", path) |
| |
| // retrieve dfs specific data |
| dfs_context *dfs = (dfs_context*)fuse_get_context()->private_data; |
| |
| // check params and the context var |
| assert(path); |
| assert(dfs); |
| assert('/' == *path); |
| |
| int ret = 0; |
| dfs_fh *fh = (dfs_fh*)fi->fh; |
| assert(fh); |
| hdfsFile file_handle = (hdfsFile)fh->hdfsFH; |
| if (NULL != file_handle) { |
| if (hdfsCloseFile(hdfsConnGetFs(fh->conn), file_handle) != 0) { |
| ERROR("Could not close handle %ld for %s\n",(long)file_handle, path); |
| ret = -EIO; |
| } |
| } |
| free(fh->buf); |
| hdfsConnRelease(fh->conn); |
| pthread_mutex_destroy(&fh->mutex); |
| free(fh); |
| fi->fh = 0; |
| return ret; |
| } |