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-rw-r--r--tools/lib/h5tools_filters.c254
1 files changed, 127 insertions, 127 deletions
diff --git a/tools/lib/h5tools_filters.c b/tools/lib/h5tools_filters.c
index 65be089..457d1af 100644
--- a/tools/lib/h5tools_filters.c
+++ b/tools/lib/h5tools_filters.c
@@ -18,191 +18,191 @@
* print a warning message
*-------------------------------------------------------------------------
*/
-static void print_warning(const char *dname, const char *fname)
+static void print_filter_warning(const char *dname, const char *fname)
{
- fprintf(stderr,
- "warning: dataset <%s> cannot be read, %s filter is not available\n",
- dname, fname);
+ fprintf(stderr,
+ "Warning: dataset <%s> cannot be read, %s filter is not available\n",
+ dname, fname);
}
/*-------------------------------------------------------------------------
* Function: h5tools_canreadf
*
- * Purpose: check if the dataset creation property list has filters that
- * are not registered in the current configuration
- * 1) the external filters GZIP and SZIP might not be available
- * 2) the internal filters might be turned off
- *
- * Return: 1, can read, 0, cannot, -1 error
- *
- * Programmer: Pedro Vicente, pvn@ncsa.uiuc.edu
- *
- * Date: March 1, 2004
+ * Purpose: check if the dataset creation property list has filters that
+ * are not registered in the current configuration
+ * 1) the external filters GZIP and SZIP might not be available
+ * 2) the internal filters might be turned off
*
+ * Return:
+ * 1 can read,
+ * 0 cannot,
+ * -1 error
*-------------------------------------------------------------------------
*/
-int h5tools_canreadf(const char* name, /* object name, serves also as boolean print */
+int
+h5tools_canreadf(const char* name, /* object name, serves also as boolean print */
hid_t dcpl_id) /* dataset creation property list */
{
+ int ret_value = 1;
+ int nfilters; /* number of filters */
+ H5Z_filter_t filtn; /* filter identification number */
+ int i; /* index */
+ int udfilter_avail; /* index */
+
+ /* get information about filters */
+ if ((nfilters = H5Pget_nfilters(dcpl_id)) < 0)
+ HGOTO_ERROR(FAIL, H5E_tools_min_id_g, "H5Pget_nfilters failed");
+
+ /* if we do not have filters, we can read the dataset safely */
+ if (!nfilters)
+ HGOTO_DONE(1);
+
+ /* check availability of filters */
+ for (i = 0; i < nfilters; i++) {
+ if ((filtn = H5Pget_filter2(dcpl_id, (unsigned) i, 0, 0, 0, (size_t) 0, 0, NULL)) < 0)
+ HGOTO_ERROR(FAIL, H5E_tools_min_id_g, "H5Pget_filter2 failed");
+
+ switch (filtn) {
+ /*-------------------------------------------------------------------------
+ * user defined filter
+ *-------------------------------------------------------------------------
+ */
+ default:
+ if ((udfilter_avail = H5Zfilter_avail(filtn)) < 0) {
+ HGOTO_ERROR(FAIL, H5E_tools_min_id_g, "H5Zfilter_avail failed");
+ }
+ else if (!udfilter_avail) {
+ if (name)
+ print_filter_warning(name, "user defined");
+ ret_value = 0;
+ }
+ break;
- int nfilters; /* number of filters */
- H5Z_filter_t filtn; /* filter identification number */
- int i; /* index */
- int udfilter_avail; /* index */
-
- /* get information about filters */
- if ((nfilters = H5Pget_nfilters(dcpl_id)) < 0)
- return -1;
-
- /* if we do not have filters, we can read the dataset safely */
- if (!nfilters)
- return 1;
-
- /* check availability of filters */
- for (i = 0; i < nfilters; i++) {
- if ((filtn = H5Pget_filter2(dcpl_id, (unsigned) i, 0, 0, 0, (size_t) 0, 0, NULL)) < 0)
- return -1;
-
- switch (filtn) {
- /*-------------------------------------------------------------------------
- * user defined filter
- *-------------------------------------------------------------------------
- */
- default:
- if ((udfilter_avail = H5Zfilter_avail(filtn)) < 0)
- return -1;
- else if (udfilter_avail == 0) {
- if (name)
- print_warning(name, "user defined");
- return 0;
- }
- break;
-
- /*-------------------------------------------------------------------------
- * H5Z_FILTER_DEFLATE 1 , deflation like gzip
- *-------------------------------------------------------------------------
- */
- case H5Z_FILTER_DEFLATE:
+ /*-------------------------------------------------------------------------
+ * H5Z_FILTER_DEFLATE 1 , deflation like gzip
+ *-------------------------------------------------------------------------
+ */
+ case H5Z_FILTER_DEFLATE:
#ifndef H5_HAVE_FILTER_DEFLATE
- if (name)
- print_warning(name,"deflate");
- return 0;
+ if (name)
+ print_filter_warning(name,"deflate");
+ ret_value = 0;
#endif
- break;
- /*-------------------------------------------------------------------------
- * H5Z_FILTER_SZIP 4 , szip compression
- *-------------------------------------------------------------------------
- */
- case H5Z_FILTER_SZIP:
+ break;
+ /*-------------------------------------------------------------------------
+ * H5Z_FILTER_SZIP 4 , szip compression
+ *-------------------------------------------------------------------------
+ */
+ case H5Z_FILTER_SZIP:
#ifndef H5_HAVE_FILTER_SZIP
- if (name)
- print_warning(name,"SZIP");
- return 0;
+ if (name)
+ print_filter_warning(name,"SZIP");
+ ret_value = 0;
#endif
- break;
- /*-------------------------------------------------------------------------
- * H5Z_FILTER_SHUFFLE 2 , shuffle the data
- *-------------------------------------------------------------------------
- */
- case H5Z_FILTER_SHUFFLE:
- break;
- /*-------------------------------------------------------------------------
- * H5Z_FILTER_FLETCHER32 3 , fletcher32 checksum of EDC
- *-------------------------------------------------------------------------
- */
- case H5Z_FILTER_FLETCHER32:
- break;
- /*-------------------------------------------------------------------------
- * H5Z_FILTER_NBIT
- *-------------------------------------------------------------------------
- */
- case H5Z_FILTER_NBIT:
- break;
- /*-------------------------------------------------------------------------
- * H5Z_FILTER_SCALEOFFSET
- *-------------------------------------------------------------------------
- */
- case H5Z_FILTER_SCALEOFFSET:
- break;
- }/*switch*/
- }/*for*/
-
- return 1;
+ break;
+ /*-------------------------------------------------------------------------
+ * H5Z_FILTER_SHUFFLE 2 , shuffle the data
+ *-------------------------------------------------------------------------
+ */
+ case H5Z_FILTER_SHUFFLE:
+ break;
+ /*-------------------------------------------------------------------------
+ * H5Z_FILTER_FLETCHER32 3 , fletcher32 checksum of EDC
+ *-------------------------------------------------------------------------
+ */
+ case H5Z_FILTER_FLETCHER32:
+ break;
+ /*-------------------------------------------------------------------------
+ * H5Z_FILTER_NBIT
+ *-------------------------------------------------------------------------
+ */
+ case H5Z_FILTER_NBIT:
+ break;
+ /*-------------------------------------------------------------------------
+ * H5Z_FILTER_SCALEOFFSET
+ *-------------------------------------------------------------------------
+ */
+ case H5Z_FILTER_SCALEOFFSET:
+ break;
+ }/*switch*/
+ }/*for*/
+
+done:
+ return ret_value;
}
/*-------------------------------------------------------------------------
* Function: h5tools_canwritef
*
- * Purpose: check if the filter is available and can write data.
- * At this time, all filters that are available can write data,
- * except SZIP, which may be configured decoder-only.
- *
- * Return: 1, can write, 0, cannot, -1 error
- *
- * Programmer:
- *
- * Date: October 5, 2004
+ * Purpose: check if the filter is available and can write data.
*
+ * Return: 1 can write,
+ * 0 cannot,
+ * -1 error
*-------------------------------------------------------------------------
*/
-int h5tools_can_encode(H5Z_filter_t filtn) {
- switch (filtn) {
- /* user defined filter */
- default:
- return 0;
+int
+h5tools_can_encode(H5Z_filter_t filtn)
+{
+ int ret_value = 1;
- case H5Z_FILTER_DEFLATE:
+ switch (filtn) {
+ /* user defined filter */
+ default:
+ HGOTO_DONE(0)
+ case H5Z_FILTER_DEFLATE:
#ifndef H5_HAVE_FILTER_DEFLATE
- return 0;
+ HGOTO_DONE(0)
#endif
break;
- case H5Z_FILTER_SZIP:
+ case H5Z_FILTER_SZIP:
#ifndef H5_HAVE_FILTER_SZIP
- return 0;
+ HGOTO_DONE(0)
#else
- {
+ {
unsigned int filter_config_flags;
if (H5Zget_filter_info(filtn, &filter_config_flags) < 0)
- return -1;
+ HGOTO_ERROR(FAIL, H5E_tools_min_id_g, "H5Zget_filter_info failed");
if ((filter_config_flags
& (H5Z_FILTER_CONFIG_ENCODE_ENABLED | H5Z_FILTER_CONFIG_DECODE_ENABLED)) == 0) {
/* filter present but neither encode nor decode is supported (???) */
- return -1;
- }
+ HGOTO_ERROR(FAIL, H5E_tools_min_id_g, "neither encode nor decode is supported");
+ }
else if ((filter_config_flags
& (H5Z_FILTER_CONFIG_ENCODE_ENABLED | H5Z_FILTER_CONFIG_DECODE_ENABLED)) == H5Z_FILTER_CONFIG_DECODE_ENABLED) {
/* decoder only: read but not write */
- return 0;
- }
+ HGOTO_DONE(0)
+ }
else if ((filter_config_flags
& (H5Z_FILTER_CONFIG_ENCODE_ENABLED | H5Z_FILTER_CONFIG_DECODE_ENABLED)) == H5Z_FILTER_CONFIG_ENCODE_ENABLED) {
/* encoder only: write but not read (???) */
- return -1;
- }
+ HGOTO_ERROR(FAIL, H5E_tools_min_id_g, "encoder only: write but not read");
+ }
else if ((filter_config_flags
& (H5Z_FILTER_CONFIG_ENCODE_ENABLED | H5Z_FILTER_CONFIG_DECODE_ENABLED))
== (H5Z_FILTER_CONFIG_ENCODE_ENABLED | H5Z_FILTER_CONFIG_DECODE_ENABLED)) {
- return 1;
+ HGOTO_DONE(1)
}
- }
+ }
#endif
break;
- case H5Z_FILTER_SHUFFLE:
+ case H5Z_FILTER_SHUFFLE:
break;
- case H5Z_FILTER_FLETCHER32:
+ case H5Z_FILTER_FLETCHER32:
break;
- case H5Z_FILTER_NBIT:
+ case H5Z_FILTER_NBIT:
break;
- case H5Z_FILTER_SCALEOFFSET:
+ case H5Z_FILTER_SCALEOFFSET:
break;
}/*switch*/
- return 1;
+done:
+ return ret_value;
}