Add new test file for UD filters

1 files changed, 115 insertions, 0 deletions

diff --git a/tools/h5repack/dynlib_vrpk.c b/tools/h5repack/dynlib_vrpk.c
new file mode 100644
index 0000000..63ceaec
--- /dev/null
+++ b/tools/h5repack/dynlib_vrpk.c
@@ -0,0 +1,115 @@
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ * 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.            *
+ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+/*
+ * Purpose:    Tests the plugin module (H5PL)
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include "H5PLextern.h"
+
+#define H5Z_FILTER_DYNLIB4      260
+
+/* gcc attribute support from H5private.h */
+#ifdef __cplusplus
+#   define H5_ATTR_CONST        /*void*/
+#else /* __cplusplus */
+#if defined(H5_HAVE_ATTRIBUTE) && !defined(__SUNPRO_C)
+#   define H5_ATTR_CONST        __attribute__((const))
+#else
+#   define H5_ATTR_CONST        /*void*/
+#endif
+#endif /* __cplusplus */
+
+#define PUSH_ERR(func, minor, str) H5Epush2(H5E_DEFAULT, __FILE__, func, __LINE__, H5E_ERR_CLS, H5E_PLUGIN, minor, str)
+
+static size_t H5Z_filter_dynlib4(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_DYNLIB4[1] = {{
+    H5Z_CLASS_T_VERS,                /* H5Z_class_t version             */
+    H5Z_FILTER_DYNLIB4,             /* Filter id number        */
+    1, 1,                            /* Encoding and decoding enabled   */
+    "dynlib4",                 /* Filter name for debugging    */
+    NULL,                            /* The "can apply" callback        */
+    NULL,                            /* The "set local" callback        */
+    (H5Z_func_t)H5Z_filter_dynlib4,    /* The actual filter function    */
+}};
+
+H5_ATTR_CONST H5PL_type_t   H5PLget_plugin_type(void) {return H5PL_TYPE_FILTER;}
+H5_ATTR_CONST const void    *H5PLget_plugin_info(void) {return H5Z_DYNLIB4;}
+
+/*-------------------------------------------------------------------------
+ * Function:    H5Z_filter_dynlib4
+ *
+ * Purpose:    A dynlib4 filter method that adds on and subtract from
+ *              the original value with another value.  It will be built
+ *              as a shared library.  plugin.c test will load and use
+ *              this filter library. Designed to call a HDF function.
+ *
+ * Return:    Success:    Data chunk size
+ *
+ *        Failure:    0
+ *
+ *-------------------------------------------------------------------------
+ */
+static size_t
+H5Z_filter_dynlib4(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 add_on = 0;
+    unsigned ver_info[3];
+
+    /* Check for the library version */
+    if(H5get_libversion(&ver_info[0], &ver_info[1], &ver_info[2]) < 0) {
+        PUSH_ERR("dynlib4", H5E_CALLBACK, "H5get_libversion");
+        return(0);
+    }
+    /* Check for the correct number of parameters */
+    if(cd_nelmts == 0)
+        return(0);
+
+    /* Check that permanent parameters are set correctly */
+    if(cd_values[0] > 9)
+        return(0);
+
+    if(ver_info[0] != cd_values[1] || ver_info[1] != cd_values[2]) {
+        PUSH_ERR("dynlib4", H5E_CALLBACK, "H5get_libversion does not match");
+        return(0);
+    }
+
+    add_on = (int)cd_values[0];
+
+    if(flags & H5Z_FLAG_REVERSE) { /*read*/
+        /* Substract the "add on" value to all the data values */
+        while(buf_left > 0) {
+            *int_ptr++ -= add_on;
+            buf_left -= sizeof(int);
+        } /* end while */
+    } /* end if */
+    else { /*write*/
+        /* Add the "add on" value to all the data values */
+        while(buf_left > 0) {
+            *int_ptr++ += add_on;
+            buf_left -= sizeof(int);
+        } /* end while */
+    } /* end else */
+
+    return nbytes;
+} /* end H5Z_filter_dynlib4() */
+