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-rw-r--r--tools/h5format_convert/h5format_convert.c136
1 files changed, 67 insertions, 69 deletions
diff --git a/tools/h5format_convert/h5format_convert.c b/tools/h5format_convert/h5format_convert.c
index a80e332..105ac5d 100644
--- a/tools/h5format_convert/h5format_convert.c
+++ b/tools/h5format_convert/h5format_convert.c
@@ -88,16 +88,20 @@ static void usage(const char *prog)
printf("Examples of use:\n");
printf("\n");
printf("h5format_convert -d /group/dataset file_name\n");
- printf(" Convert the chunk indexing type to version 1 B-tree\n");
- printf(" for the chunked dataset </group/dataset> in the HDF5 file <file_name>.\n");
+ printf(" Convert the dataset </group/dataset> in the HDF5 file <file_name>:\n");
+ printf(" a. chunked dataset: convert the chunk indexing type to version 1 B-tree\n");
+ printf(" b. compact/contiguous dataset: downgrade the layout version to 3\n");
+ printf(" c. virtual dataset: no action\n");
printf("\n");
printf("h5format_convert file_name\n");
- printf(" Convert the chunk indexing type to version 1 B-tree\n");
- printf(" for all the chunked datasets in the HDF5 file <file_name>.\n");
+ printf(" Convert all datasets in the HDF5 file <file_name>:\n");
+ printf(" a. chunked dataset: convert the chunk indexing type to version 1 B-tree\n");
+ printf(" b. compact/contiguous dataset: downgrade the layout version to 3\n");
+ printf(" c. virtual dataset: no action\n");
printf("\n");
printf("h5format_convert -n -d /group/dataset file_name\n");
printf(" Go through all the steps except the actual conversion when \n");
- printf(" converting the chunked dataset </group/dataset> in the HDF5 file <file_name>.\n");
+ printf(" converting the dataset </group/dataset> in the HDF5 file <file_name>.\n");
} /* usage() */
/*-------------------------------------------------------------------------
@@ -200,11 +204,15 @@ leave(int ret)
/*-------------------------------------------------------------------------
* Function: convert()
*
- * Purpose: To change the chunk indexing type for the dataset to version 1 B-tree.
- * -- the dataset has to be chunked
- * -- the dataset's chunk indexing type is not already version 1 B-tree.
- * If the above conditions are not fulfilled, the tool will not perform
- * the conversion but will exit with success.
+ * Purpose: To downgrade a dataset's indexing type or layout version:
+ * For chunked:
+ * Downgrade the chunk indexing type to version 1 B-tree
+ * If type is already version 1 B-tree, no further action
+ * For compact/contiguous:
+ * Downgrade the layout version from 4 to 3
+ * If version is already <= 3, no further action
+ * For virtual:
+ * No further action
*
* Return: Success: 0
* Failure: 1
@@ -244,34 +252,49 @@ convert(hid_t fid, const char *dname)
} else if(verbose_g)
printf("Retrieve the dataset's layout\n");
- /* No further action if not a chunked dataset */
- if(layout_type != H5D_CHUNKED) {
- if(verbose_g)
- printf("Dataset is not chunked: no further action\n");
- h5tools_setstatus(EXIT_SUCCESS);
- goto done;
+ switch(layout_type) {
+ case H5D_CHUNKED:
+ if(verbose_g)
+ printf("Dataset is a chunked dataset\n");
- } else if(verbose_g)
- printf("Verify the dataset is a chunked dataset\n");
+ /* Get the dataset's chunk indexing type */
+ if(H5Dget_chunk_index_type(did, &idx_type) < 0) {
+ error_msg("unable to get the chunk indexing type for \"%s\"\n", dname);
+ h5tools_setstatus(EXIT_FAILURE);
+ goto error;
+ } else if(verbose_g)
+ printf("Retrieve the dataset's chunk indexing type\n");
- /* Get the dataset's chunk indexing type */
- if(H5Dget_chunk_index_type(did, &idx_type) < 0) {
- error_msg("unable to get the chunk indexing type for \"%s\"\n", dname);
- h5tools_setstatus(EXIT_FAILURE);
- goto error;
+ if(idx_type == H5D_CHUNK_IDX_BTREE) {
+ if(verbose_g)
+ printf("Dataset's chunk indexing type is already version 1 B-tree: no further action\n");
+ h5tools_setstatus(EXIT_SUCCESS);
+ goto done;
+ } else if (verbose_g)
+ printf("Dataset's chunk indexing type is not version 1 B-tree\n");
+ break;
- } else if(verbose_g)
- printf("Retrieve the dataset's chunk indexing type\n");
+ case H5D_CONTIGUOUS:
+ if(verbose_g)
+ printf("Dataset is a contiguous dataset: downgrade layout version as needed\n");
+ break;
- /* No further action if the chunk indexing type is already version 1 B-tree */
- if(idx_type == H5D_CHUNK_IDX_BTREE) {
- if(verbose_g)
- printf("Chunk indexing type is already version 1 B-tree: no further action\n");
- h5tools_setstatus(EXIT_SUCCESS);
- goto done;
+ case H5D_COMPACT:
+ if(verbose_g)
+ printf("Dataset is a compact dataset: downgrade layout version as needed\n");
+ break;
+
+ case H5D_VIRTUAL:
+ if(verbose_g)
+ printf("No further action for virtual dataset\n");
+ goto done;
- } else if (verbose_g)
- printf("Verify the dataset's chunk indexing type is not version 1 B-tree\n");
+ default:
+ error_msg("unknown layout type for \"%s\"\n", dname);
+ h5tools_setstatus(EXIT_FAILURE);
+ goto error;
+
+ } /* end switch */
/* No further action if it is a noop */
if(noop_g) {
@@ -284,12 +307,11 @@ convert(hid_t fid, const char *dname)
if(verbose_g)
printf("Converting the dataset...\n");
- /* Convert the dataset's chunk indexing type to version 1 B-tree */
+ /* Downgrade the dataset */
if(H5Dformat_convert(did) < 0) {
- error_msg("unable to convert chunk indexing for \"%s\"\n", dname);
+ error_msg("unable to downgrade dataset for \"%s\"\n", dname);
h5tools_setstatus(EXIT_FAILURE);
goto error;
-
} else if(verbose_g)
printf("Done\n");
@@ -377,9 +399,6 @@ main(int argc, const char *argv[])
H5E_auto2_t func;
void *edata;
hid_t fid = -1;
- hid_t fcpl = -1;
- H5F_file_space_type_t strategy;
- hsize_t threshold;
h5tools_setprogname(PROGRAMNAME);
h5tools_setstatus(EXIT_SUCCESS);
@@ -408,28 +427,6 @@ main(int argc, const char *argv[])
} else if(verbose_g)
printf("Open the file %s\n", fname_g);
- /* A temporaray fix:
- * need to handle H5O_FSINFO_ID message when downgrade superblock version from 3 to 2
- */
- if((fcpl = H5Fget_create_plist(fid)) < 0) {
- error_msg("unable to get file creation property list for \"%s\"\n", fname_g);
- h5tools_setstatus(EXIT_FAILURE);
- goto done;
- }
- if(H5Pget_file_space(fcpl, &strategy, &threshold) < 0) {
- error_msg("unable to get file space strategy/threshold\n");
- h5tools_setstatus(EXIT_FAILURE);
- goto done;
- }
- /* Check for non-default strategy/threshold:
- * --whether there is H5O_FSINFO_ID message in the superblock extension
- */
- if(strategy != H5F_FILE_SPACE_ALL || threshold != 1) {
- error_msg("unable to convert due to non-default file space strategy/threshold\n");
- h5tools_setstatus(EXIT_FAILURE);
- goto done;
- }
-
if(dset_g) { /* Convert a specified dataset in the file */
if(verbose_g)
printf("Going to process dataset: %s...\n", dname_g);
@@ -443,16 +440,17 @@ main(int argc, const char *argv[])
}
if(verbose_g) {
- if(noop_g) {
- printf("Not processing the file's superblock version...\n");
- h5tools_setstatus(EXIT_SUCCESS);
- goto done;
- }
- printf("Processing the file's superblock version...\n");
+ if(noop_g) {
+ printf("Not processing the file's superblock...\n");
+ h5tools_setstatus(EXIT_SUCCESS);
+ goto done;
+ }
+ printf("Processing the file's superblock...\n");
}
- if(H5Fformat_convert_super(fid) < 0) {
- error_msg("unable to convert file's superblock version\"%s\"\n", fname_g);
+ /* Process superblock */
+ if(H5Fformat_convert(fid) < 0) {
+ error_msg("unable to convert file's superblock\"%s\"\n", fname_g);
h5tools_setstatus(EXIT_FAILURE);
goto done;
}
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