diff options
Diffstat (limited to 'src/H5Dio.c')
| -rw-r--r-- | src/H5Dio.c | 76 |
1 files changed, 35 insertions, 41 deletions
diff --git a/src/H5Dio.c b/src/H5Dio.c index 2134ce1..611518d 100644 --- a/src/H5Dio.c +++ b/src/H5Dio.c @@ -143,17 +143,17 @@ H5D__read(size_t count, H5D_dset_io_info_t *dset_info) } /* end if */ #endif /*H5_HAVE_PARALLEL*/ - /* iterate over all dsets and construct I/O information necessary to do I/O */ + /* Iterate over all dsets and construct I/O information necessary to do I/O */ for (i = 0; i < count; i++) { haddr_t prev_tag = HADDR_UNDEF; - /* check args */ + /* Check args */ if (NULL == dset_info[i].dset) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a dataset"); if (NULL == dset_info[i].dset->oloc.file) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a file"); - /* set metadata tagging with dset oheader addr */ + /* Set metadata tagging with dset oheader addr */ H5AC_tag(dset_info[i].dset->oloc.addr, &prev_tag); /* Set up datatype info for operation */ @@ -173,10 +173,7 @@ H5D__read(size_t count, H5D_dset_io_info_t *dset_info) if (dset_info[i].nelmts > 0) HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "no output buffer"); - /* If the buffer is nil, and 0 element is selected, make a fake buffer. - * This is for some MPI package like ChaMPIon on NCSA's tungsten which - * doesn't support this feature. - */ + /* If the buffer is nil, and 0 element is selected, make a fake buffer. */ dset_info[i].buf.vp = &fake_char; } /* end if */ @@ -191,8 +188,8 @@ H5D__read(size_t count, H5D_dset_io_info_t *dset_info) * rapidly changing coordinates match up), but the I/O code still has * difficulties with the notion. * - * To solve this, we check to see if H5S_select_shape_same() returns true, - * and if the ranks of the mem and file spaces are different. If they are, + * To solve this, check if H5S_select_shape_same() returns true + * and the ranks of the mem and file spaces are different. If so, * construct a new mem space that is equivalent to the old mem space, and * use that instead. * @@ -347,7 +344,7 @@ H5D__read(size_t count, H5D_dset_io_info_t *dset_info) if (dset_info[i].layout_ops.mdio_init) { haddr_t prev_tag = HADDR_UNDEF; - /* set metadata tagging with dset oheader addr */ + /* Set metadata tagging with dset oheader addr */ H5AC_tag(dset_info[i].dset->oloc.addr, &prev_tag); /* Make second phase IO init call */ @@ -396,7 +393,7 @@ H5D__read(size_t count, H5D_dset_io_info_t *dset_info) if (dset_info[i].skip_io) continue; - /* set metadata tagging with dset oheader addr */ + /* Set metadata tagging with dset object header addr */ H5AC_tag(dset_info[i].dset->oloc.addr, &prev_tag); /* Invoke correct "high level" I/O routine */ @@ -553,18 +550,18 @@ H5D__write(size_t count, H5D_dset_io_info_t *dset_info) if (NULL == (store = (H5D_storage_t *)H5MM_malloc(count * sizeof(H5D_storage_t)))) HGOTO_ERROR(H5E_DATASET, H5E_CANTALLOC, FAIL, "couldn't allocate dset storage info array buffer"); - /* iterate over all dsets and construct I/O information */ + /* Iterate over all dsets and construct I/O information */ for (i = 0; i < count; i++) { bool should_alloc_space = false; /* Whether or not to initialize dataset's storage */ haddr_t prev_tag = HADDR_UNDEF; - /* check args */ + /* Check args */ if (NULL == dset_info[i].dset) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a dataset"); if (NULL == dset_info[i].dset->oloc.file) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a file"); - /* set metadata tagging with dset oheader addr */ + /* Set metadata tagging with dset oheader addr */ H5AC_tag(dset_info[i].dset->oloc.addr, &prev_tag); /* All filters in the DCPL must have encoding enabled. */ @@ -620,10 +617,7 @@ H5D__write(size_t count, H5D_dset_io_info_t *dset_info) if (dset_info[i].nelmts > 0) HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "no input buffer"); - /* If the buffer is nil, and 0 element is selected, make a fake buffer. - * This is for some MPI package like ChaMPIon on NCSA's tungsten which - * doesn't support this feature. - */ + /* If the buffer is nil, and 0 element is selected, make a fake buffer. */ dset_info[i].buf.cvp = &fake_char; } /* end if */ @@ -633,18 +627,18 @@ H5D__write(size_t count, H5D_dset_io_info_t *dset_info) if (!(H5S_has_extent(dset_info[i].mem_space))) HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "memory dataspace does not have extent set"); - /* H5S_select_shape_same() has been modified to accept topologically - * identical selections with different rank as having the same shape - * (if the most rapidly changing coordinates match up), but the I/O - * code still has difficulties with the notion. + /* H5S_select_shape_same() has been modified to accept topologically identical + * selections with different rank as having the same shape (if the most + * rapidly changing coordinates match up), but the I/O code still has + * difficulties with the notion. * - * To solve this, we check to see if H5S_select_shape_same() returns - * true, and if the ranks of the mem and file spaces are different. - * If they are, construct a new mem space that is equivalent to the - * old mem space, and use that instead. + * To solve this, check if H5S_select_shape_same() returns true + * and the ranks of the mem and file spaces are different. If so, + * construct a new mem space that is equivalent to the old mem space, and + * use that instead. * - * Note that in general, this requires us to touch up the memory buffer - * as well. + * Note that in general, this requires us to touch up the memory buffer as + * well. */ if (dset_info[i].nelmts > 0 && true == H5S_SELECT_SHAPE_SAME(dset_info[i].mem_space, dset_info[i].file_space) && @@ -818,11 +812,11 @@ H5D__write(size_t count, H5D_dset_io_info_t *dset_info) "unable to allocate array of selected pieces"); } - /* loop with serial & single-dset write IO path */ + /* Loop with serial & single-dset write IO path */ for (i = 0; i < count; i++) { assert(!dset_info[i].skip_io); - /* set metadata tagging with dset oheader addr */ + /* Set metadata tagging with dset oheader addr */ H5AC_tag(dset_info->dset->oloc.addr, &prev_tag); /* Invoke correct "high level" I/O routine */ @@ -936,7 +930,7 @@ H5D__ioinfo_init(size_t count, H5D_io_op_type_t op_type, H5D_dset_io_info_t *dse FUNC_ENTER_PACKAGE_NOERR - /* check args */ + /* Check args */ assert(count > 0); assert(dset_info); assert(dset_info[0].dset->oloc.file); @@ -1057,7 +1051,7 @@ H5D__typeinfo_init(H5D_io_info_t *io_info, H5D_dset_io_info_t *dset_info, hid_t FUNC_ENTER_PACKAGE - /* check args */ + /* Check args */ assert(io_info); assert(dset_info); @@ -1151,7 +1145,7 @@ done: /*------------------------------------------------------------------------- * Function: H5D__typeinfo_init_phase2 * - * Purpose: Continue initializing type info for all datasets after + * Purpose: Continues initializing type info for all datasets after * calculating the max type size across all datasets, and * before final determination of collective/independent in * H5D__ioinfo_adjust(). Currently just checks to see if @@ -1169,7 +1163,7 @@ H5D__typeinfo_init_phase2(H5D_io_info_t *io_info) FUNC_ENTER_PACKAGE - /* check args */ + /* Check args */ assert(io_info); /* If selection I/O mode is default (auto), enable it here if the VFD supports it (it will be turned off @@ -1238,7 +1232,7 @@ done: /*------------------------------------------------------------------------- * Function: H5D__ioinfo_adjust * - * Purpose: Adjust operation's I/O info for any parallel I/O, also + * Purpose: Adjusts operation's I/O info for any parallel I/O, also * handle decision on selection I/O even in serial case * * Return: Non-negative on success/Negative on failure @@ -1253,10 +1247,10 @@ H5D__ioinfo_adjust(H5D_io_info_t *io_info) FUNC_ENTER_PACKAGE - /* check args */ + /* Check args */ assert(io_info); - /* check the first dset, should exist either single or multi dset cases */ + /* Check the first dset, should exist either single or multi dset cases */ assert(io_info->dsets_info[0].dset); dset0 = io_info->dsets_info[0].dset; assert(dset0->oloc.file); @@ -1317,7 +1311,7 @@ H5D__ioinfo_adjust(H5D_io_info_t *io_info) if (io_info->dsets_info[i].dset->shared->dcpl_cache.pline.nused > 0) break; - /* If the above loop didn't complete at least one dataset has a filter */ + /* If the above loop didn't complete, at least one dataset has a filter */ if (i < io_info->count) { int comm_size = 0; @@ -1363,9 +1357,9 @@ done: /*------------------------------------------------------------------------- * Function: H5D__typeinfo_init_phase3 * - * Purpose: Finish initializing type info for all datasets after - * calculating the max type size across all datasets. And - * after final collective/independent determination in + * Purpose: Finishes initializing type info for all datasets after + * calculating the max type size across all datasets and + * final collective/independent determination in * H5D__ioinfo_adjust(). * * Return: Non-negative on success/Negative on failure |