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| author | Jonathan Kim <jkm@hdfgroup.org> | 2010-11-18 14:50:35 (GMT) |
|---|---|---|
| committer | Jonathan Kim <jkm@hdfgroup.org> | 2010-11-18 14:50:35 (GMT) |
| commit | cd1b79599037add42d210ad445791a59d874cf3c (patch) | |
| tree | d8ecef543eb6d0b731f397b7188e1475548edb66 /tools/h5repack/h5repack_copy.c | |
| parent | 17642410fc17082179a017f16cc8c8eff0ee914a (diff) | |
| download | hdf5-cd1b79599037add42d210ad445791a59d874cf3c.zip hdf5-cd1b79599037add42d210ad445791a59d874cf3c.tar.gz hdf5-cd1b79599037add42d210ad445791a59d874cf3c.tar.bz2 | |
[svn-r19819] Purpose:
Change to skip copying when a dataset is not allocated.
Merged from hdf5 trunk r19818.
Tested:
jam (linux32-LE), amani (linux64-LE), heiwa (linuxppc64-BE)
Diffstat (limited to 'tools/h5repack/h5repack_copy.c')
| -rw-r--r-- | tools/h5repack/h5repack_copy.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/tools/h5repack/h5repack_copy.c b/tools/h5repack/h5repack_copy.c index d8b50b6..c8dce9f 100644 --- a/tools/h5repack/h5repack_copy.c +++ b/tools/h5repack/h5repack_copy.c @@ -515,6 +515,7 @@ int do_copy_objects(hid_t fidin, named_dt_t *named_dt_head=NULL; /* Pointer to the stack of named datatypes copied */ size_t msize; /* size of type */ hsize_t nelmts; /* number of elements in dataset */ + H5D_space_status_t *space_status; /* determines whether space has been allocated for the dataset */ int rank; /* rank of dataset */ hsize_t dims[H5S_MAX_RANK];/* dimensions of dataset */ hsize_t dsize_in; /* input dataset size before filter */ @@ -702,6 +703,10 @@ int do_copy_objects(hid_t fidin, HDmemset(dims, 0, sizeof dims); if(H5Sget_simple_extent_dims(f_space_id, dims, NULL) < 0) goto error; + + if(H5Dget_space_status(dset_in, &space_status) <0) + goto error; + nelmts = 1; for ( j = 0; j < rank; j++) { @@ -790,9 +795,11 @@ int do_copy_objects(hid_t fidin, * read/write *------------------------------------------------------------------------- */ - if (nelmts) + if (nelmts>0 && space_status!=H5D_SPACE_STATUS_NOT_ALLOCATED) { size_t need = (size_t)(nelmts*msize); /* bytes needed */ + + /* have to read the whole dataset if there is only one element in the dataset */ if ( need < H5TOOLS_MALLOCSIZE ) buf = HDmalloc(need); @@ -803,7 +810,6 @@ int do_copy_objects(hid_t fidin, if (H5Dwrite(dset_out,wtype_id,H5S_ALL,H5S_ALL,H5P_DEFAULT,buf) < 0) goto error; } - else /* possibly not enough memory, read/write by hyperslabs */ { size_t p_type_nbytes = msize; /*size of memory type */ @@ -905,7 +911,7 @@ int do_copy_objects(hid_t fidin, sm_buf=NULL; } } /* hyperslab read */ - }/*nelmts*/ + } /* if (nelmts>0 && space_status==H5D_SPACE_STATUS_NOT_ALLOCATED) */ /*------------------------------------------------------------------------- * amount of compression used |