diff options
Diffstat (limited to 'src/H5Dio.c')
| -rw-r--r-- | src/H5Dio.c | 79 |
1 files changed, 43 insertions, 36 deletions
diff --git a/src/H5Dio.c b/src/H5Dio.c index 2687c5f..ab611aa 100644 --- a/src/H5Dio.c +++ b/src/H5Dio.c @@ -129,7 +129,6 @@ H5Dread(hid_t dset_id, hid_t mem_type_id, hid_t mem_space_id, H5D_t *dset = NULL; const H5S_t *mem_space = NULL; const H5S_t *file_space = NULL; - char fake_char; herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_API(FAIL) @@ -168,15 +167,6 @@ H5Dread(hid_t dset_id, hid_t mem_type_id, hid_t mem_space_id, else if(TRUE != H5P_isa_class(plist_id, H5P_DATASET_XFER)) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not xfer parms") - if(!buf && (NULL == file_space || H5S_GET_SELECT_NPOINTS(file_space) != 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(!buf) - buf = &fake_char; /* read raw data */ if(H5D__read(dset, mem_type_id, mem_space, file_space, plist_id, buf/*out*/) < 0) @@ -331,7 +321,6 @@ H5D__pre_write(hid_t dset_id, hid_t mem_type_id, hid_t mem_space_id, else { /* Normal write */ const H5S_t *mem_space = NULL; const H5S_t *file_space = NULL; - char fake_char; if(mem_space_id < 0 || file_space_id < 0) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a data space") @@ -353,20 +342,10 @@ H5D__pre_write(hid_t dset_id, hid_t mem_type_id, hid_t mem_space_id, HGOTO_ERROR(H5E_DATASPACE, H5E_BADRANGE, FAIL, "file selection+offset not within extent") } /* end if */ - if(!buf && (NULL == file_space || H5S_GET_SELECT_NPOINTS(file_space) != 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(!buf) - buf = &fake_char; - /* write raw data */ if(H5D__write(dset, mem_type_id, mem_space, file_space, dxpl_id, buf) < 0) HGOTO_ERROR(H5E_DATASET, H5E_WRITEERROR, FAIL, "can't write data") - } + } /* end else */ done: FUNC_LEAVE_NOAPI(ret_value) @@ -416,6 +395,7 @@ H5D__read(H5D_t *dataset, hid_t mem_type_id, const H5S_t *mem_space, hbool_t io_op_init = FALSE; /* Whether the I/O op has been initialized */ H5D_dxpl_cache_t _dxpl_cache; /* Data transfer property cache buffer */ H5D_dxpl_cache_t *dxpl_cache = &_dxpl_cache; /* Data transfer property cache */ + char fake_char; /* Temporary variable for NULL buffer pointers */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_PACKAGE_TAG(dxpl_id, dataset->oloc.addr, FAIL) @@ -451,6 +431,19 @@ H5D__read(H5D_t *dataset, hid_t mem_type_id, const H5S_t *mem_space, if(nelmts != (hsize_t)H5S_GET_SELECT_NPOINTS(file_space)) HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "src and dest data spaces have different sizes") + /* Check for a NULL buffer, after the H5S_ALL dataspace selection has been handled */ + if(NULL == buf) { + /* Check for any elements selected (which is invalid) */ + if(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. + */ + buf = &fake_char; + } /* end if */ + /* Make sure that both selections have their extents set */ if(!(H5S_has_extent(file_space))) HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "file dataspace does not have extent set") @@ -618,6 +611,7 @@ H5D__write(H5D_t *dataset, hid_t mem_type_id, const H5S_t *mem_space, hbool_t io_op_init = FALSE; /* Whether the I/O op has been initialized */ H5D_dxpl_cache_t _dxpl_cache; /* Data transfer property cache buffer */ H5D_dxpl_cache_t *dxpl_cache = &_dxpl_cache; /* Data transfer property cache */ + char fake_char; /* Temporary variable for NULL buffer pointers */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_STATIC_TAG(dxpl_id, dataset->oloc.addr, FAIL) @@ -683,6 +677,33 @@ H5D__write(H5D_t *dataset, hid_t mem_type_id, const H5S_t *mem_space, if(!mem_space) mem_space = file_space; + if((snelmts = H5S_GET_SELECT_NPOINTS(mem_space)) < 0) + HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "src dataspace has invalid selection") + H5_ASSIGN_OVERFLOW(nelmts, snelmts, hssize_t, hsize_t); + + /* Make certain that the number of elements in each selection is the same */ + if(nelmts != (hsize_t)H5S_GET_SELECT_NPOINTS(file_space)) + HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "src and dest data spaces have different sizes") + + /* Check for a NULL buffer, after the H5S_ALL dataspace selection has been handled */ + if(NULL == buf) { + /* Check for any elements selected (which is invalid) */ + if(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. + */ + buf = &fake_char; + } /* end if */ + + /* Make sure that both selections have their extents set */ + if(!(H5S_has_extent(file_space))) + HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "file dataspace does not have extent set") + if(!(H5S_has_extent(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 @@ -713,20 +734,6 @@ H5D__write(H5D_t *dataset, hid_t mem_type_id, const H5S_t *mem_space, buf = adj_buf; } /* end if */ - if((snelmts = H5S_GET_SELECT_NPOINTS(mem_space)) < 0) - HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "src dataspace has invalid selection") - H5_ASSIGN_OVERFLOW(nelmts, snelmts, hssize_t, hsize_t); - - /* Make certain that the number of elements in each selection is the same */ - if(nelmts != (hsize_t)H5S_GET_SELECT_NPOINTS(file_space)) - HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "src and dest data spaces have different sizes") - - /* Make sure that both selections have their extents set */ - if(!(H5S_has_extent(file_space))) - HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "file dataspace does not have extent set") - if(!(H5S_has_extent(mem_space))) - HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "memory dataspace does not have extent set") - /* Retrieve dataset properties */ /* <none needed currently> */ |