diff options
Diffstat (limited to 'src/H5FDhdfs.c')
-rw-r--r-- | src/H5FDhdfs.c | 84 |
1 files changed, 81 insertions, 3 deletions
diff --git a/src/H5FDhdfs.c b/src/H5FDhdfs.c index 1b28168..61c694d 100644 --- a/src/H5FDhdfs.c +++ b/src/H5FDhdfs.c @@ -271,6 +271,10 @@ static haddr_t H5FD__hdfs_get_eof(const H5FD_t *_file, H5FD_mem_t type); static herr_t H5FD__hdfs_get_handle(H5FD_t *_file, hid_t fapl, void **file_handle); static herr_t H5FD__hdfs_read(H5FD_t *_file, H5FD_mem_t type, hid_t fapl_id, haddr_t addr, size_t size, void *buf); +static herr_t H5FD__hdfs_write(H5FD_t *_file, H5FD_mem_t type, hid_t fapl_id, haddr_t addr, size_t size, + const void *buf); +static herr_t H5FD__hdfs_truncate(H5FD_t *_file, hid_t dxpl_id, hbool_t closing); + static herr_t H5FD__hdfs_validate_config(const H5FD_hdfs_fapl_t *fa); static const H5FD_class_t H5FD_hdfs_g = { @@ -300,9 +304,9 @@ static const H5FD_class_t H5FD_hdfs_g = { H5FD__hdfs_get_eof, /* get_eof */ H5FD__hdfs_get_handle, /* get_handle */ H5FD__hdfs_read, /* read */ - NULL, /* write */ + H5FD__hdfs_write, /* write */ NULL, /* flush */ - NULL, /* truncate */ + H5FD__hdfs_truncate, /* truncate */ NULL, /* lock */ NULL, /* unlock */ H5FD_FLMAP_DICHOTOMY /* fl_map */ @@ -667,7 +671,7 @@ H5Pget_fapl_hdfs(hid_t fapl_id, H5FD_hdfs_fapl_t *fa_dst /*out*/) HGOTO_ERROR(H5E_PLIST, H5E_BADVALUE, FAIL, "bad VFL driver info") /* Copy the hdfs fapl data out */ - H5MM_memcpy(fs_dst, fa_src, sizeof(H5FD_hdfs_fapl_t)); + H5MM_memcpy(fa_dst, fa_src, sizeof(H5FD_hdfs_fapl_t)); done: FUNC_LEAVE_API(ret_value) @@ -1565,4 +1569,78 @@ done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5FD__hdfs_read() */ +/*------------------------------------------------------------------------- + * + * Function: H5FD__hdfs_write() + * + * Purpose: + * + * Write bytes to file. + * UNSUPPORTED IN READ-ONLY HDFS VFD. + * + * Return: + * + * FAIL (Not possible with Read-Only S3 file.) + * + * Programmer: Jacob Smith + * 2017-10-23 + * + *------------------------------------------------------------------------- + */ +static herr_t +H5FD__hdfs_write(H5FD_t H5_ATTR_UNUSED *_file, H5FD_mem_t H5_ATTR_UNUSED type, hid_t H5_ATTR_UNUSED dxpl_id, + haddr_t H5_ATTR_UNUSED addr, size_t H5_ATTR_UNUSED size, const void H5_ATTR_UNUSED *buf) +{ + herr_t ret_value = FAIL; + + FUNC_ENTER_STATIC + +#if HDFS_DEBUG + HDfprintf(stdout, "called %s.\n", FUNC); +#endif + + HGOTO_ERROR(H5E_VFL, H5E_UNSUPPORTED, FAIL, "cannot write to read-only file") + +done: + FUNC_LEAVE_NOAPI(ret_value) +} /* H5FD__hdfs_write() */ + +/*------------------------------------------------------------------------- + * + * Function: H5FD__hdfs_truncate() + * + * Purpose: + * + * Makes sure that the true file size is the same (or larger) + * than the end-of-address. + * + * NOT POSSIBLE ON READ-ONLY S3 FILES. + * + * Return: + * + * FAIL (Not possible on Read-Only S3 files.) + * + * Programmer: Jacob Smith + * 2017-10-23 + * + *------------------------------------------------------------------------- + */ +static herr_t +H5FD__hdfs_truncate(H5FD_t H5_ATTR_UNUSED *_file, hid_t H5_ATTR_UNUSED dxpl_id, + hbool_t H5_ATTR_UNUSED closing) +{ + herr_t ret_value = SUCCEED; + + FUNC_ENTER_STATIC + +#if HDFS_DEBUG + HDfprintf(stdout, "called %s.\n", FUNC); +#endif + + HGOTO_ERROR(H5E_VFL, H5E_UNSUPPORTED, FAIL, "cannot truncate read-only file") + +done: + FUNC_LEAVE_NOAPI(ret_value) +} /* end H5FD__hdfs_truncate() */ + #endif /* H5_HAVE_LIBHDFS */ |