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author | Allen Byrne <byrn@hdfgroup.org> | 2019-09-13 17:18:36 (GMT) |
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committer | Allen Byrne <byrn@hdfgroup.org> | 2019-09-13 17:18:36 (GMT) |
commit | 3457362c9268b6230bb3140c4e0c636743e328b3 (patch) | |
tree | ff421b7d9fdcaf13fa33e017a8bfd1195c5368c0 /src/H5FDhdfs.h | |
parent | 5dbb76ebca3aeca2bfc64649d02abab9d4d3bc25 (diff) | |
download | hdf5-3457362c9268b6230bb3140c4e0c636743e328b3.zip hdf5-3457362c9268b6230bb3140c4e0c636743e328b3.tar.gz hdf5-3457362c9268b6230bb3140c4e0c636743e328b3.tar.bz2 |
Merge S3 code from develop to 1.10
Diffstat (limited to 'src/H5FDhdfs.h')
-rw-r--r-- | src/H5FDhdfs.h | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/src/H5FDhdfs.h b/src/H5FDhdfs.h new file mode 100644 index 0000000..3d4128d --- /dev/null +++ b/src/H5FDhdfs.h @@ -0,0 +1,122 @@ +/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * + * Read-Only HDFS Virtual File Driver (VFD) * + * Copyright (c) 2018, The HDF Group. * + * * + * All rights reserved. * + * * + * NOTICE: * + * All information contained herein is, and remains, the property of The HDF * + * Group. The intellectual and technical concepts contained herein are * + * proprietary to The HDF Group. Dissemination of this information or * + * reproduction of this material is strictly forbidden unless prior written * + * permission is obtained from The HDF Group. * + * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ + +/* + * Programmer: Jacob Smith + * 2018-04-23 + * + * Purpose: The public header file for the hdfs driver. + */ + +#ifndef H5FDhdfs_H +#define H5FDhdfs_H + +#define H5FD_HDFS (H5FD_hdfs_init()) + +#ifdef __cplusplus +extern "C" { +#endif + +/**************************************************************************** + * + * Structure: H5FD_hdfs_fapl_t + * + * Purpose: + * + * H5FD_hdfs_fapl_t is a public structure that is used to pass + * configuration information to the appropriate HDFS VFD via the FAPL. + * A pointer to an instance of this structure is a parameter to + * H5Pset_fapl_hdfs() and H5Pget_fapl_hdfs(). + * + * + * + * `version` (int32_t) + * + * Version number of the `H5FD_hdfs_fapl_t` structure. Any instance passed + * to the above calls must have a recognized version number, or an error + * will be flagged. + * + * This field should be set to `H5FD__CURR_HDFS_FAPL_T_VERSION`. + * + * `namenode_name` (const char[]) + * + * Name of "Name Node" to access as the HDFS server. + * + * Must not be longer than `H5FD__HDFS_NODE_NAME_SPACE`. + * + * TBD: Can be NULL. + * + * `namenode_port` (int32_t) TBD + * + * Port number to use to connect with Name Node. + * + * TBD: If 0, uses a default port. + * + * `kerberos_ticket_cache` (const char[]) + * + * Path to the location of the Kerberos authentication cache. + * + * Must not be longer than `H5FD__HDFS_KERB_CACHE_PATH_SPACE`. + * + * TBD: Can be NULL. + * + * `user_name` (const char[]) + * + * Username to use when accessing file. + * + * Must not be longer than `H5FD__HDFS_USER_NAME_SPACE`. + * + * TBD: Can be NULL. + * + * `stream_buffer_size` (int32_t) + * + * Size (in bytes) of the file read stream buffer. + * + * TBD: If -1, relies on a default value. + * + * + * + * Programmer: Jacob Smith + * 2018-04-23 + * + * Changes: None + * + ****************************************************************************/ + +#define H5FD__CURR_HDFS_FAPL_T_VERSION 1 + +#define H5FD__HDFS_NODE_NAME_SPACE 128 +#define H5FD__HDFS_USER_NAME_SPACE 128 +#define H5FD__HDFS_KERB_CACHE_PATH_SPACE 128 + +typedef struct H5FD_hdfs_fapl_t { + int32_t version; + char namenode_name[H5FD__HDFS_NODE_NAME_SPACE + 1]; + int32_t namenode_port; + char user_name[H5FD__HDFS_USER_NAME_SPACE + 1]; + char kerberos_ticket_cache[H5FD__HDFS_KERB_CACHE_PATH_SPACE + 1]; + int32_t stream_buffer_size; +} H5FD_hdfs_fapl_t; + +H5_DLL hid_t H5FD_hdfs_init(void); +H5_DLL herr_t H5Pget_fapl_hdfs(hid_t fapl_id, H5FD_hdfs_fapl_t *fa_out); +H5_DLL herr_t H5Pset_fapl_hdfs(hid_t fapl_id, H5FD_hdfs_fapl_t *fa); + +#ifdef __cplusplus +} +#endif + +#endif /* ifndef H5FDhdfs_H */ + + |