diff options
Diffstat (limited to 'src/H5Dselect.c')
| -rw-r--r-- | src/H5Dselect.c | 67 |
1 files changed, 36 insertions, 31 deletions
diff --git a/src/H5Dselect.c b/src/H5Dselect.c index 8b84c3e..5a5c491 100644 --- a/src/H5Dselect.c +++ b/src/H5Dselect.c @@ -113,51 +113,38 @@ H5D__select_io(const H5D_io_info_t *io_info, size_t elmt_size, HDassert(io_info->store); HDassert(io_info->u.rbuf); - /* Get info from API context */ - if(H5CX_get_vec_size(&dxpl_vec_size) < 0) - HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, FAIL, "can't retrieve I/O vector size") - - /* Allocate the vector I/O arrays */ - if(dxpl_vec_size > H5D_IO_VECTOR_SIZE) - vec_size = dxpl_vec_size; - else - vec_size = H5D_IO_VECTOR_SIZE; - if(NULL == (mem_len = H5FL_SEQ_MALLOC(size_t, vec_size))) - HGOTO_ERROR(H5E_DATASET, H5E_CANTALLOC, FAIL, "can't allocate I/O length vector array") - if(NULL == (mem_off = H5FL_SEQ_MALLOC(hsize_t, vec_size))) - HGOTO_ERROR(H5E_DATASET, H5E_CANTALLOC, FAIL, "can't allocate I/O offset vector array") - if(NULL == (file_len = H5FL_SEQ_MALLOC(size_t, vec_size))) - HGOTO_ERROR(H5E_DATASET, H5E_CANTALLOC, FAIL, "can't allocate I/O length vector array") - if(NULL == (file_off = H5FL_SEQ_MALLOC(hsize_t, vec_size))) - HGOTO_ERROR(H5E_DATASET, H5E_CANTALLOC, FAIL, "can't allocate I/O offset vector array") - /* Check for only one element in selection */ if(nelmts == 1) { + hsize_t single_mem_off; /* Offset in memory */ + hsize_t single_file_off; /* Offset in the file */ + size_t single_mem_len; /* Length in memory */ + size_t single_file_len; /* Length in the file */ + /* Get offset of first element in selections */ - if(H5S_SELECT_OFFSET(file_space, file_off) < 0) + if(H5S_SELECT_OFFSET(file_space, &single_file_off) < 0) HGOTO_ERROR(H5E_INTERNAL, H5E_UNSUPPORTED, FAIL, "can't retrieve file selection offset") - if(H5S_SELECT_OFFSET(mem_space, mem_off) < 0) + if(H5S_SELECT_OFFSET(mem_space, &single_mem_off) < 0) HGOTO_ERROR(H5E_INTERNAL, H5E_UNSUPPORTED, FAIL, "can't retrieve memory selection offset") /* Set up necessary information for I/O operation */ file_nseq = mem_nseq = 1; curr_mem_seq = curr_file_seq = 0; - *file_off *= elmt_size; - *mem_off *= elmt_size; - *file_len = *mem_len = elmt_size; + single_file_off *= elmt_size; + single_mem_off *= elmt_size; + single_file_len = single_mem_len = elmt_size; /* Perform I/O on memory and file sequences */ if(io_info->op_type == H5D_IO_OP_READ) { if((tmp_file_len = (*io_info->layout_ops.readvv)(io_info, - file_nseq, &curr_file_seq, file_len, file_off, - mem_nseq, &curr_mem_seq, mem_len, mem_off)) < 0) + file_nseq, &curr_file_seq, &single_file_len, &single_file_off, + mem_nseq, &curr_mem_seq, &single_mem_len, &single_mem_off)) < 0) HGOTO_ERROR(H5E_DATASPACE, H5E_READERROR, FAIL, "read error") } /* end if */ else { HDassert(io_info->op_type == H5D_IO_OP_WRITE); if((tmp_file_len = (*io_info->layout_ops.writevv)(io_info, - file_nseq, &curr_file_seq, file_len, file_off, - mem_nseq, &curr_mem_seq, mem_len, mem_off)) < 0) + file_nseq, &curr_file_seq, &single_file_len, &single_file_off, + mem_nseq, &curr_mem_seq, &single_mem_len, &single_mem_off)) < 0) HGOTO_ERROR(H5E_DATASPACE, H5E_WRITEERROR, FAIL, "write error") } /* end else */ @@ -168,6 +155,24 @@ H5D__select_io(const H5D_io_info_t *io_info, size_t elmt_size, size_t mem_nelem; /* Number of elements used in memory sequences */ size_t file_nelem; /* Number of elements used in file sequences */ + /* Get info from API context */ + if(H5CX_get_vec_size(&dxpl_vec_size) < 0) + HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, FAIL, "can't retrieve I/O vector size") + + /* Allocate the vector I/O arrays */ + if(dxpl_vec_size > H5D_IO_VECTOR_SIZE) + vec_size = dxpl_vec_size; + else + vec_size = H5D_IO_VECTOR_SIZE; + if(NULL == (mem_len = H5FL_SEQ_MALLOC(size_t, vec_size))) + HGOTO_ERROR(H5E_DATASET, H5E_CANTALLOC, FAIL, "can't allocate I/O length vector array") + if(NULL == (mem_off = H5FL_SEQ_MALLOC(hsize_t, vec_size))) + HGOTO_ERROR(H5E_DATASET, H5E_CANTALLOC, FAIL, "can't allocate I/O offset vector array") + if(NULL == (file_len = H5FL_SEQ_MALLOC(size_t, vec_size))) + HGOTO_ERROR(H5E_DATASET, H5E_CANTALLOC, FAIL, "can't allocate I/O length vector array") + if(NULL == (file_off = H5FL_SEQ_MALLOC(hsize_t, vec_size))) + HGOTO_ERROR(H5E_DATASET, H5E_CANTALLOC, FAIL, "can't allocate I/O offset vector array") + /* Allocate the iterators */ if(NULL == (mem_iter = H5FL_MALLOC(H5S_sel_iter_t))) HGOTO_ERROR(H5E_DATASET, H5E_CANTALLOC, FAIL, "can't allocate memory iterator") @@ -175,12 +180,12 @@ H5D__select_io(const H5D_io_info_t *io_info, size_t elmt_size, HGOTO_ERROR(H5E_DATASET, H5E_CANTALLOC, FAIL, "can't allocate file iterator") /* Initialize file iterator */ - if(H5S_select_iter_init(file_iter, file_space, elmt_size) < 0) + if(H5S_select_iter_init(file_iter, file_space, elmt_size, H5S_SEL_ITER_GET_SEQ_LIST_SORTED) < 0) HGOTO_ERROR(H5E_DATASPACE, H5E_CANTINIT, FAIL, "unable to initialize selection iterator") file_iter_init = 1; /* File selection iteration info has been initialized */ /* Initialize memory iterator */ - if(H5S_select_iter_init(mem_iter, mem_space, elmt_size) < 0) + if(H5S_select_iter_init(mem_iter, mem_space, elmt_size, 0) < 0) HGOTO_ERROR(H5E_DATASPACE, H5E_CANTINIT, FAIL, "unable to initialize selection iterator") mem_iter_init = 1; /* Memory selection iteration info has been initialized */ @@ -193,7 +198,7 @@ H5D__select_io(const H5D_io_info_t *io_info, size_t elmt_size, /* Check if more file sequences are needed */ if(curr_file_seq >= file_nseq) { /* Get sequences for file selection */ - if(H5S_SELECT_GET_SEQ_LIST(file_space, H5S_GET_SEQ_LIST_SORTED, file_iter, vec_size, nelmts, &file_nseq, &file_nelem, file_off, file_len) < 0) + if(H5S_SELECT_ITER_GET_SEQ_LIST(file_iter, vec_size, nelmts, &file_nseq, &file_nelem, file_off, file_len) < 0) HGOTO_ERROR(H5E_INTERNAL, H5E_UNSUPPORTED, FAIL, "sequence length generation failed") /* Start at the beginning of the sequences again */ @@ -203,7 +208,7 @@ H5D__select_io(const H5D_io_info_t *io_info, size_t elmt_size, /* Check if more memory sequences are needed */ if(curr_mem_seq >= mem_nseq) { /* Get sequences for memory selection */ - if(H5S_SELECT_GET_SEQ_LIST(mem_space, 0, mem_iter, vec_size, nelmts, &mem_nseq, &mem_nelem, mem_off, mem_len) < 0) + if(H5S_SELECT_ITER_GET_SEQ_LIST(mem_iter, vec_size, nelmts, &mem_nseq, &mem_nelem, mem_off, mem_len) < 0) HGOTO_ERROR(H5E_INTERNAL, H5E_UNSUPPORTED, FAIL, "sequence length generation failed") /* Start at the beginning of the sequences again */ |