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+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ * 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 files COPYING and Copyright.html. COPYING can be found at the root *
+ * of the source code distribution tree; Copyright.html can be found at the *
+ * root level of an installed copy of the electronic document set and is *
+ * linked from the top-level documents page. It can also be found at *
+ * http://hdfgroup.org/HDF5/doc/Copyright.html. If you do not have access *
+ * to either file, you may request a copy from help@hdfgroup.org. *
+ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+/*
+ * Programmer: Raymond Lu
+ * 1 April 2013
+ *
+ * Purpose: Tests the plugin module (H5PL)
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include "H5PLextern.h"
+
+#define H5Z_FILTER_DYNLIB3 259
+#define SUFFIX_LEN 8
+#define GROUP_SUFFIX ".h5group"
+
+static size_t H5Z_filter_dynlib3(unsigned int flags, size_t cd_nelmts,
+ const unsigned int *cd_values, size_t nbytes, size_t *buf_size, void **buf);
+
+/* This message derives from H5Z */
+const H5Z_class2_t H5Z_DYNLIB3[1] = {{
+ H5Z_CLASS_T_VERS, /* H5Z_class_t version */
+ H5Z_FILTER_DYNLIB3, /* Filter id number */
+ 1, 1, /* Encoding and decoding enabled */
+ "dynlib3", /* Filter name for debugging */
+ NULL, /* The "can apply" callback */
+ NULL, /* The "set local" callback */
+ (H5Z_func_t)H5Z_filter_dynlib3, /* The actual filter function */
+}};
+
+H5PL_type_t H5PLget_plugin_type(void) {return H5PL_TYPE_FILTER;}
+const void *H5PLget_plugin_info(void) {return H5Z_DYNLIB3;}
+
+/*-------------------------------------------------------------------------
+ * Function: H5Z_filter_dynlib3
+ *
+ * Purpose: A dynlib3 filter method that is used to test groups. It
+ * appends the suffix ".h5group" to each group name during
+ * write and takes it out during read.
+ *
+ * Return: Success: Data chunk size
+ *
+ * Failure: 0
+ *
+ * Programmer: Raymond Lu
+ * 1 April 2013
+ *
+ *-------------------------------------------------------------------------
+ */
+static size_t
+H5Z_filter_dynlib3(unsigned int flags, size_t cd_nelmts,
+ const unsigned int *cd_values, size_t nbytes,
+ size_t *buf_size, void **buf)
+{
+ size_t ret_value; /* Return value */
+
+ /* Check for the correct number of parameters */
+ if(cd_nelmts > 0)
+ return(0);
+
+ if(flags & H5Z_FLAG_REVERSE) { /*read*/
+ ret_value = *buf_size = nbytes - SUFFIX_LEN;
+ } /* end if */
+ else { /*write*/
+ void *outbuf = NULL; /* Pointer to new buffer */
+ unsigned char *dst; /* Temporary pointer to destination buffer */
+
+ dst = (unsigned char *)(outbuf = malloc(nbytes + SUFFIX_LEN));
+
+ /* Copy raw data */
+ memcpy((void*)dst, (void*)(*buf), nbytes);
+
+ /* Append suffix to raw data for storage */
+ dst += nbytes;
+ memcpy(dst, (void*)GROUP_SUFFIX, SUFFIX_LEN);
+
+ /* Free input buffer */
+ free(*buf);
+
+ /* Set return values */
+ *buf_size = nbytes + SUFFIX_LEN;
+ *buf = outbuf;
+ outbuf = NULL;
+ ret_value = *buf_size;
+ } /* end else */
+
+ return ret_value;
+} /* H5Z_filter_dynlib3() */
+