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author | Dana Robinson <derobins@hdfgroup.org> | 2017-11-09 01:52:44 (GMT) |
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committer | Dana Robinson <derobins@hdfgroup.org> | 2017-11-09 01:52:44 (GMT) |
commit | 00ade113c5fe7d48571a36091970328dcca68f50 (patch) | |
tree | 11df63256f5533e3621054d44ccf15172bdf74d4 /test/filter_plugin1_dsets.c | |
parent | 51b80a8d8585b9ccb471966d235cd99379c3bcf3 (diff) | |
download | hdf5-00ade113c5fe7d48571a36091970328dcca68f50.zip hdf5-00ade113c5fe7d48571a36091970328dcca68f50.tar.gz hdf5-00ade113c5fe7d48571a36091970328dcca68f50.tar.bz2 |
Plugin test rework
Cleanup of plugin test code. Renames many files. Prep for VOL branch merge.
Diffstat (limited to 'test/filter_plugin1_dsets.c')
-rw-r--r-- | test/filter_plugin1_dsets.c | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/test/filter_plugin1_dsets.c b/test/filter_plugin1_dsets.c new file mode 100644 index 0000000..b74e086 --- /dev/null +++ b/test/filter_plugin1_dsets.c @@ -0,0 +1,93 @@ +/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * + * Copyright by The HDF Group. * + * All rights reserved. * + * * + * This file is part of HDF5. The full HDF5 copyright notice, including * + * terms governing use, modification, and redistribution, is contained in * + * the COPYING file, which can be found at the root of the source code * + * distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases. * + * If you do not have access to either file, you may request a copy from * + * help@hdfgroup.org. * + * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ + +/* + * Purpose: Test dataset filter plugin for the filter_pluging.c test. + */ + + +#include <stdlib.h> +#include <stdio.h> + +#include "H5PLextern.h" + +#define FILTER1_ID 257 + +static size_t add_sub_value(unsigned int flags, size_t cd_nelmts, + const unsigned int *cd_values, size_t nbytes, size_t *buf_size, void **buf); + +/* Filter class struct */ +const H5Z_class2_t FILTER_INFO[1] = {{ + H5Z_CLASS_T_VERS, /* H5Z_class_t version */ + FILTER1_ID, /* Filter ID number */ + 1, /* Encoding enabled */ + 1, /* Decoding enabled */ + "test filter plugin 1", /* Filter name for debugging */ + NULL, /* The "can apply" callback */ + NULL, /* The "set local" callback */ + (H5Z_func_t)add_sub_value, /* The actual filter function */ +}}; + +H5PL_type_t H5PLget_plugin_type(void) {return H5PL_TYPE_FILTER;} +const void *H5PLget_plugin_info(void) {return FILTER_INFO;} + + +/*------------------------------------------------------------------------- + * Function: add_sub_value + * + * Purpose: On write: + * Adds a caller-supplied value to the element + * On read: + * Subtracts a caller-supplied value from the element + * + * Return: Success: Data chunk size in bytes + * Failure: 0 + * + *------------------------------------------------------------------------- + */ +static size_t +add_sub_value(unsigned int flags, size_t cd_nelmts, const unsigned int *cd_values, + size_t nbytes, size_t *buf_size, void **buf) +{ + int *int_ptr = (int *)*buf; /* Pointer to the data values */ + size_t buf_left = *buf_size; /* Amount of data buffer left to process */ + int value = 0; /* Data value to add/subtract */ + + /* Check for the correct number of parameters */ + if (0 == cd_nelmts) + return 0; + + /* Check that permanent parameters are set correctly */ + if (cd_values[0] > 9) + return 0; + + value = (int)cd_values[0]; + + if (flags & H5Z_FLAG_REVERSE) { + /* READ - Substract the given value from all the data values */ + while (buf_left > 0) { + *int_ptr++ -= value; + buf_left -= sizeof(int); + } + } + else { + /* WRITE - Add the given value to all the data values */ + while (buf_left > 0) { + *int_ptr++ += value; + buf_left -= sizeof(int); + } + } + + return nbytes; + +} /* end add_sub_value() */ + |